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Mark ChangeLog
[official-gcc.git] / gcc / mips-tfile.c
blob22b377f2c85a8990580db20e2ded3bd91d9dc332
1 /* Update the symbol table (the .T file) in a MIPS object to
2 contain debugging information specified by the GNU compiler
3 in the form of comments (the mips assembler does not support
4 assembly access to debug information).
5 Copyright (C) 1991, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001,
6 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
7 Contributed by Michael Meissner (meissner@cygnus.com).
8
9 This file is part of GCC.
10
11 GCC is free software; you can redistribute it and/or modify it under
12 the terms of the GNU General Public License as published by the Free
13 Software Foundation; either version 3, or (at your option) any later
14 version.
15
16 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
17 WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with GCC; see the file COPYING3. If not see
23 <http://www.gnu.org/licenses/>. */
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 indices 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 #include "coretypes.h"
605 #include "tm.h"
606 #include "version.h"
607 #include "intl.h"
608
609 #ifndef __SABER__
610 #define saber_stop()
611 #endif
612
613 /* Include getopt.h for the sake of getopt_long. */
614 #include "getopt.h"
615
616 #ifndef __LINE__
617 #define __LINE__ 0
618 #endif
619
620 /* Due to size_t being defined in sys/types.h and different
621 in stddef.h, we have to do this by hand..... Note, these
622 types are correct for MIPS based systems, and may not be
623 correct for other systems. Ultrix 4.0 and Silicon Graphics
624 have this fixed, but since the following is correct, and
625 the fact that including stddef.h gets you GCC's version
626 instead of the standard one it's not worth it to fix it. */
627
628 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
629 #define Size_t long unsigned int
630 #else
631 #define Size_t unsigned int
632 #endif
633 #define Ptrdiff_t long
634
635 /* The following might be called from obstack or malloc,
636 so they can't be static. */
637
638 extern void pfatal_with_name (const char *) ATTRIBUTE_NORETURN;
639 extern void botch (const char *) ATTRIBUTE_NORETURN;
640
641 extern void fatal (const char *format, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
642 extern void error (const char *format, ...) ATTRIBUTE_PRINTF_1;
643 \f
644 #ifndef MIPS_DEBUGGING_INFO
645
646 static int line_number;
647 static int cur_line_start;
648 static int debug;
649 static int had_errors;
650 static const char *progname;
651 static const char *input_name;
652
653 int
654 main (void)
655 {
656 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
657 exit (1);
658 }
659
660 #else /* MIPS_DEBUGGING defined */
661 \f
662 /* The local and global symbols have a field index, so undo any defines
663 of index -> strchr. */
664
665 #undef index
666
667 #include <signal.h>
668
669 #ifndef CROSS_COMPILE
670 #include <a.out.h>
671 #else
672 #include "mips/a.out.h"
673 #endif /* CROSS_COMPILE */
674
675 #include "gstab.h"
676
677 #define STAB_CODE_TYPE enum __stab_debug_code
678
679 #ifndef MALLOC_CHECK
680 #ifdef __SABER__
681 #define MALLOC_CHECK
682 #endif
683 #endif
684
685 #define IS_ASM_IDENT(ch) \
686 (ISIDNUM (ch) || (ch) == '.' || (ch) == '$')
687
688 \f
689 /* Redefinition of storage classes as an enumeration for better
690 debugging. */
691
692 typedef enum sc {
693 sc_Nil = scNil, /* no storage class */
694 sc_Text = scText, /* text symbol */
695 sc_Data = scData, /* initialized data symbol */
696 sc_Bss = scBss, /* un-initialized data symbol */
697 sc_Register = scRegister, /* value of symbol is register number */
698 sc_Abs = scAbs, /* value of symbol is absolute */
699 sc_Undefined = scUndefined, /* who knows? */
700 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
701 sc_Bits = scBits, /* this is a bit field */
702 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
703 sc_RegImage = scRegImage, /* register value saved on stack */
704 sc_Info = scInfo, /* symbol contains debugger information */
705 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
706 sc_SData = scSData, /* load time only small data */
707 sc_SBss = scSBss, /* load time only small common */
708 sc_RData = scRData, /* load time only read only data */
709 sc_Var = scVar, /* Var parameter (fortran,pascal) */
710 sc_Common = scCommon, /* common variable */
711 sc_SCommon = scSCommon, /* small common */
712 sc_VarRegister = scVarRegister, /* Var parameter in a register */
713 sc_Variant = scVariant, /* Variant record */
714 sc_SUndefined = scSUndefined, /* small undefined(external) data */
715 sc_Init = scInit, /* .init section symbol */
716 sc_Max = scMax /* Max storage class+1 */
717 } sc_t;
718
719 /* Redefinition of symbol type. */
720
721 typedef enum st {
722 st_Nil = stNil, /* Nuthin' special */
723 st_Global = stGlobal, /* external symbol */
724 st_Static = stStatic, /* static */
725 st_Param = stParam, /* procedure argument */
726 st_Local = stLocal, /* local variable */
727 st_Label = stLabel, /* label */
728 st_Proc = stProc, /* " " Procedure */
729 st_Block = stBlock, /* beginning of block */
730 st_End = stEnd, /* end (of anything) */
731 st_Member = stMember, /* member (of anything - struct/union/enum */
732 st_Typedef = stTypedef, /* type definition */
733 st_File = stFile, /* file name */
734 st_RegReloc = stRegReloc, /* register relocation */
735 st_Forward = stForward, /* forwarding address */
736 st_StaticProc = stStaticProc, /* load time only static procs */
737 st_Constant = stConstant, /* const */
738 st_Str = stStr, /* string */
739 st_Number = stNumber, /* pure number (i.e. 4 NOR 2+2) */
740 st_Expr = stExpr, /* 2+2 vs. 4 */
741 st_Type = stType, /* post-coercion SER */
742 st_Max = stMax /* max type+1 */
743 } st_t;
744
745 /* Redefinition of type qualifiers. */
746
747 typedef enum tq {
748 tq_Nil = tqNil, /* bt is what you see */
749 tq_Ptr = tqPtr, /* pointer */
750 tq_Proc = tqProc, /* procedure */
751 tq_Array = tqArray, /* duh */
752 tq_Far = tqFar, /* longer addressing - 8086/8 land */
753 tq_Vol = tqVol, /* volatile */
754 tq_Max = tqMax /* Max type qualifier+1 */
755 } tq_t;
756
757 /* Redefinition of basic types. */
758
759 typedef enum bt {
760 bt_Nil = btNil, /* undefined */
761 bt_Adr = btAdr, /* address - integer same size as pointer */
762 bt_Char = btChar, /* character */
763 bt_UChar = btUChar, /* unsigned character */
764 bt_Short = btShort, /* short */
765 bt_UShort = btUShort, /* unsigned short */
766 bt_Int = btInt, /* int */
767 bt_UInt = btUInt, /* unsigned int */
768 bt_Long = btLong, /* long */
769 bt_ULong = btULong, /* unsigned long */
770 bt_Float = btFloat, /* float (real) */
771 bt_Double = btDouble, /* Double (real) */
772 bt_Struct = btStruct, /* Structure (Record) */
773 bt_Union = btUnion, /* Union (variant) */
774 bt_Enum = btEnum, /* Enumerated */
775 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
776 bt_Range = btRange, /* subrange of int */
777 bt_Set = btSet, /* pascal sets */
778 bt_Complex = btComplex, /* fortran complex */
779 bt_DComplex = btDComplex, /* fortran double complex */
780 bt_Indirect = btIndirect, /* forward or unnamed typedef */
781 bt_FixedDec = btFixedDec, /* Fixed Decimal */
782 bt_FloatDec = btFloatDec, /* Float Decimal */
783 bt_String = btString, /* Varying Length Character String */
784 bt_Bit = btBit, /* Aligned Bit String */
785 bt_Picture = btPicture, /* Picture */
786
787 #ifdef btVoid
788 bt_Void = btVoid, /* Void */
789 #else
790 #define bt_Void bt_Nil
791 #endif
792
793 bt_Max = btMax /* Max basic type+1 */
794 } bt_t;
795
796 \f
797
798 /* Basic COFF storage classes. */
799 enum coff_storage {
800 C_EFCN = -1,
801 C_NULL = 0,
802 C_AUTO = 1,
803 C_EXT = 2,
804 C_STAT = 3,
805 C_REG = 4,
806 C_EXTDEF = 5,
807 C_LABEL = 6,
808 C_ULABEL = 7,
809 C_MOS = 8,
810 C_ARG = 9,
811 C_STRTAG = 10,
812 C_MOU = 11,
813 C_UNTAG = 12,
814 C_TPDEF = 13,
815 C_USTATIC = 14,
816 C_ENTAG = 15,
817 C_MOE = 16,
818 C_REGPARM = 17,
819 C_FIELD = 18,
820 C_BLOCK = 100,
821 C_FCN = 101,
822 C_EOS = 102,
823 C_FILE = 103,
824 C_LINE = 104,
825 C_ALIAS = 105,
826 C_HIDDEN = 106,
827 C_MAX = 107
828 } coff_storage_t;
829
830 /* Regular COFF fundamental type. */
831 typedef enum coff_type {
832 T_NULL = 0,
833 T_ARG = 1,
834 T_CHAR = 2,
835 T_SHORT = 3,
836 T_INT = 4,
837 T_LONG = 5,
838 T_FLOAT = 6,
839 T_DOUBLE = 7,
840 T_STRUCT = 8,
841 T_UNION = 9,
842 T_ENUM = 10,
843 T_MOE = 11,
844 T_UCHAR = 12,
845 T_USHORT = 13,
846 T_UINT = 14,
847 T_ULONG = 15,
848 T_MAX = 16
849 } coff_type_t;
850
851 /* Regular COFF derived types. */
852 typedef enum coff_dt {
853 DT_NON = 0,
854 DT_PTR = 1,
855 DT_FCN = 2,
856 DT_ARY = 3,
857 DT_MAX = 4
858 } coff_dt_t;
859
860 #define N_BTMASK 017 /* bitmask to isolate basic type */
861 #define N_TMASK 003 /* bitmask to isolate derived type */
862 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
863 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
864 #define N_TQ 6 /* # of type qualifiers */
865
866 /* States for whether to hash type or not. */
867 typedef enum hash_state {
868 hash_no = 0, /* don't hash type */
869 hash_yes = 1, /* ok to hash type, or use previous hash */
870 hash_record = 2 /* ok to record hash, but don't use prev. */
871 } hash_state_t;
872
873
874 /* Types of different sized allocation requests. */
875 enum alloc_type {
876 alloc_type_none, /* dummy value */
877 alloc_type_scope, /* nested scopes linked list */
878 alloc_type_vlinks, /* glue linking pages in varray */
879 alloc_type_shash, /* string hash element */
880 alloc_type_thash, /* type hash element */
881 alloc_type_tag, /* struct/union/tag element */
882 alloc_type_forward, /* element to hold unknown tag */
883 alloc_type_thead, /* head of type hash list */
884 alloc_type_varray, /* general varray allocation */
885 alloc_type_last /* last+1 element for array bounds */
886 };
887
888 \f
889 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
890 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
891
892
893 /* Structures to provide n-number of virtual arrays, each of which can
894 grow linearly, and which are written in the object file as sequential
895 pages. On systems with a BSD malloc that define USE_MALLOC, the
896 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
897 adds its overhead, and rounds up to the next power of 2. Pages are
898 linked together via a linked list. */
899
900 #ifndef PAGE_SIZE
901 #define PAGE_SIZE 32768 /* size of varray pages */
902 #endif
903
904 #define PAGE_USIZE ((Size_t) PAGE_SIZE)
905
906
907 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
908 #ifndef USE_MALLOC /* in one memory request */
909 #define MAX_CLUSTER_PAGES 64
910 #else
911 #define MAX_CLUSTER_PAGES 63
912 #endif
913 #endif
914
915
916 /* Linked list connecting separate page allocations. */
917 typedef struct vlinks {
918 struct vlinks *prev; /* previous set of pages */
919 struct vlinks *next; /* next set of pages */
920 union page *datum; /* start of page */
921 unsigned long start_index; /* starting index # of page */
922 } vlinks_t;
923
924
925 /* Virtual array header. */
926 typedef struct varray {
927 vlinks_t *first; /* first page link */
928 vlinks_t *last; /* last page link */
929 unsigned long num_allocated; /* # objects allocated */
930 unsigned short object_size; /* size in bytes of each object */
931 unsigned short objects_per_page; /* # objects that can fit on a page */
932 unsigned short objects_last_page; /* # objects allocated on last page */
933 } varray_t;
934
935 #ifndef MALLOC_CHECK
936 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
937 #else
938 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
939 #endif
940
941 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
942 (vlinks_t *) 0, /* first */ \
943 (vlinks_t *) 0, /* last */ \
944 0, /* num_allocated */ \
945 sizeof (type), /* object_size */ \
946 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
947 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
948 }
949
950 #define INITIALIZE_VARRAY(x,type) \
951 do { \
952 (x)->object_size = sizeof (type); \
953 (x)->objects_per_page = OBJECTS_PER_PAGE (type); \
954 (x)->objects_last_page = OBJECTS_PER_PAGE (type); \
955 } while (0)
956
957 /* Master type for indexes within the symbol table. */
958 typedef unsigned long symint_t;
959
960
961 /* Linked list support for nested scopes (file, block, structure, etc.). */
962 typedef struct scope {
963 struct scope *prev; /* previous scope level */
964 struct scope *free; /* free list pointer */
965 SYMR *lsym; /* pointer to local symbol node */
966 symint_t lnumber; /* lsym index */
967 st_t type; /* type of the node */
968 } scope_t;
969
970
971 /* Forward reference list for tags referenced, but not yet defined. */
972 typedef struct forward {
973 struct forward *next; /* next forward reference */
974 struct forward *free; /* free list pointer */
975 AUXU *ifd_ptr; /* pointer to store file index */
976 AUXU *index_ptr; /* pointer to store symbol index */
977 AUXU *type_ptr; /* pointer to munge type info */
978 } forward_t;
979
980
981 /* Linked list support for tags. The first tag in the list is always
982 the current tag for that block. */
983 typedef struct tag {
984 struct tag *free; /* free list pointer */
985 struct shash *hash_ptr; /* pointer to the hash table head */
986 struct tag *same_name; /* tag with same name in outer scope */
987 struct tag *same_block; /* next tag defined in the same block. */
988 struct forward *forward_ref; /* list of forward references */
989 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
990 symint_t ifd; /* file # tag defined in */
991 symint_t indx; /* index within file's local symbols */
992 } tag_t;
993
994
995 /* Head of a block's linked list of tags. */
996 typedef struct thead {
997 struct thead *prev; /* previous block */
998 struct thead *free; /* free list pointer */
999 struct tag *first_tag; /* first tag in block defined */
1000 } thead_t;
1001
1002
1003 /* Union containing pointers to each the small structures which are freed up. */
1004 typedef union small_free {
1005 scope_t *f_scope; /* scope structure */
1006 thead_t *f_thead; /* tag head structure */
1007 tag_t *f_tag; /* tag element structure */
1008 forward_t *f_forward; /* forward tag reference */
1009 } small_free_t;
1010
1011
1012 /* String hash table support. The size of the hash table must fit
1013 within a page. */
1014
1015 #ifndef SHASH_SIZE
1016 #define SHASH_SIZE 1009
1017 #endif
1018
1019 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1020
1021 typedef struct shash {
1022 struct shash *next; /* next hash value */
1023 char *string; /* string we are hashing */
1024 symint_t len; /* string length */
1025 symint_t indx; /* index within string table */
1026 EXTR *esym_ptr; /* global symbol pointer */
1027 SYMR *sym_ptr; /* local symbol pointer */
1028 SYMR *end_ptr; /* symbol pointer to end block */
1029 tag_t *tag_ptr; /* tag pointer */
1030 PDR *proc_ptr; /* procedure descriptor pointer */
1031 } shash_t;
1032
1033
1034 /* Type hash table support. The size of the hash table must fit
1035 within a page with the other extended file descriptor information.
1036 Because unique types which are hashed are fewer in number than
1037 strings, we use a smaller hash value. */
1038
1039 #ifndef THASH_SIZE
1040 #define THASH_SIZE 113
1041 #endif
1042
1043 typedef struct thash {
1044 struct thash *next; /* next hash value */
1045 AUXU type; /* type we are hashing */
1046 symint_t indx; /* index within string table */
1047 } thash_t;
1048
1049
1050 /* Extended file descriptor that contains all of the support necessary
1051 to add things to each file separately. */
1052 typedef struct efdr {
1053 FDR fdr; /* File header to be written out */
1054 FDR *orig_fdr; /* original file header */
1055 char *name; /* filename */
1056 int name_len; /* length of the filename */
1057 symint_t void_type; /* aux. pointer to 'void' type */
1058 symint_t int_type; /* aux. pointer to 'int' type */
1059 scope_t *cur_scope; /* current nested scopes */
1060 symint_t file_index; /* current file number */
1061 int nested_scopes; /* # nested scopes */
1062 varray_t strings; /* local strings */
1063 varray_t symbols; /* local symbols */
1064 varray_t procs; /* procedures */
1065 varray_t aux_syms; /* auxiliary symbols */
1066 struct efdr *next_file; /* next file descriptor */
1067 /* string/type hash tables */
1068 shash_t **shash_head; /* string hash table */
1069 thash_t *thash_head[THASH_SIZE];
1070 } efdr_t;
1071
1072 /* Pre-initialized extended file structure. */
1073 static int init_file_initialized = 0;
1074 static efdr_t init_file;
1075
1076 static efdr_t *first_file; /* first file descriptor */
1077 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1078
1079
1080 /* Union of various things that are held in pages. */
1081 typedef union page {
1082 char byte [ PAGE_SIZE ];
1083 unsigned char ubyte [ PAGE_SIZE ];
1084 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1085 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1086 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1087 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1088 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1089 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1090 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1091 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1092 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1093 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1094 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1095 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1096 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1097 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1098 } page_t;
1099
1100
1101 /* Structure holding allocation information for small sized structures. */
1102 typedef struct alloc_info {
1103 const char *alloc_name; /* name of this allocation type (must be first) */
1104 page_t *cur_page; /* current page being allocated from */
1105 small_free_t free_list; /* current free list if any */
1106 int unallocated; /* number of elements unallocated on page */
1107 int total_alloc; /* total number of allocations */
1108 int total_free; /* total number of frees */
1109 int total_pages; /* total number of pages allocated */
1110 } alloc_info_t;
1111
1112 /* Type information collected together. */
1113 typedef struct type_info {
1114 bt_t basic_type; /* basic type */
1115 coff_type_t orig_type; /* original COFF-based type */
1116 int num_tq; /* # type qualifiers */
1117 int num_dims; /* # dimensions */
1118 int num_sizes; /* # sizes */
1119 int extra_sizes; /* # extra sizes not tied with dims */
1120 tag_t * tag_ptr; /* tag pointer */
1121 int bitfield; /* symbol is a bitfield */
1122 int unknown_tag; /* this is an unknown tag */
1123 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1124 symint_t dimensions [N_TQ]; /* dimensions for each array */
1125 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1126 struct/union/enum + bitfield size */
1127 } type_info_t;
1128
1129 /* Pre-initialized type_info struct. */
1130 static type_info_t type_info_init = {
1131 bt_Nil, /* basic type */
1132 T_NULL, /* original COFF-based type */
1133 0, /* # type qualifiers */
1134 0, /* # dimensions */
1135 0, /* # sizes */
1136 0, /* sizes not tied with dims */
1137 NULL, /* ptr to tag */
1138 0, /* bitfield */
1139 0, /* unknown tag */
1140 { /* type qualifiers */
1141 tq_Nil,
1142 tq_Nil,
1143 tq_Nil,
1144 tq_Nil,
1145 tq_Nil,
1146 tq_Nil,
1147 },
1148 { /* dimensions */
1149 0,
1150 0,
1151 0,
1152 0,
1153 0,
1154 0
1155 },
1156 { /* sizes */
1157 0,
1158 0,
1159 0,
1160 0,
1161 0,
1162 0,
1163 0,
1164 0,
1165 },
1166 };
1167
1168
1169 /* Global virtual arrays & hash table for external strings as well as
1170 for the tags table and global tables for file descriptors, and
1171 dense numbers. */
1172
1173 static varray_t file_desc = INIT_VARRAY (efdr_t);
1174 static varray_t dense_num = INIT_VARRAY (DNR);
1175 static varray_t tag_strings = INIT_VARRAY (char);
1176 static varray_t ext_strings = INIT_VARRAY (char);
1177 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1178
1179 static shash_t *orig_str_hash[SHASH_SIZE];
1180 static shash_t *ext_str_hash [SHASH_SIZE];
1181 static shash_t *tag_hash [SHASH_SIZE];
1182
1183 /* Static types for int and void. Also, remember the last function's
1184 type (which is set up when we encounter the declaration for the
1185 function, and used when the end block for the function is emitted. */
1186
1187 static type_info_t int_type_info;
1188 static type_info_t void_type_info;
1189 static type_info_t last_func_type_info;
1190 static EXTR *last_func_eptr;
1191
1192
1193 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1194 really should use bt_Void, but this causes the current ecoff GDB to
1195 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1196 2.0) doesn't understand it, even though the compiler generates it.
1197 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1198 suite, but for now go with what works. */
1199
1200 static const bt_t map_coff_types[ (int) T_MAX ] = {
1201 bt_Nil, /* T_NULL */
1202 bt_Nil, /* T_ARG */
1203 bt_Char, /* T_CHAR */
1204 bt_Short, /* T_SHORT */
1205 bt_Int, /* T_INT */
1206 bt_Long, /* T_LONG */
1207 bt_Float, /* T_FLOAT */
1208 bt_Double, /* T_DOUBLE */
1209 bt_Struct, /* T_STRUCT */
1210 bt_Union, /* T_UNION */
1211 bt_Enum, /* T_ENUM */
1212 bt_Enum, /* T_MOE */
1213 bt_UChar, /* T_UCHAR */
1214 bt_UShort, /* T_USHORT */
1215 bt_UInt, /* T_UINT */
1216 bt_ULong /* T_ULONG */
1217 };
1218
1219 /* Convert COFF storage class to ECOFF storage class. */
1220 static const sc_t map_coff_storage[ (int) C_MAX ] = {
1221 sc_Nil, /* 0: C_NULL */
1222 sc_Abs, /* 1: C_AUTO auto var */
1223 sc_Undefined, /* 2: C_EXT external */
1224 sc_Data, /* 3: C_STAT static */
1225 sc_Register, /* 4: C_REG register */
1226 sc_Undefined, /* 5: C_EXTDEF ??? */
1227 sc_Text, /* 6: C_LABEL label */
1228 sc_Text, /* 7: C_ULABEL user label */
1229 sc_Info, /* 8: C_MOS member of struct */
1230 sc_Abs, /* 9: C_ARG argument */
1231 sc_Info, /* 10: C_STRTAG struct tag */
1232 sc_Info, /* 11: C_MOU member of union */
1233 sc_Info, /* 12: C_UNTAG union tag */
1234 sc_Info, /* 13: C_TPDEF typedef */
1235 sc_Data, /* 14: C_USTATIC ??? */
1236 sc_Info, /* 15: C_ENTAG enum tag */
1237 sc_Info, /* 16: C_MOE member of enum */
1238 sc_Register, /* 17: C_REGPARM register parameter */
1239 sc_Bits, /* 18; C_FIELD bitfield */
1240 sc_Nil, /* 19 */
1241 sc_Nil, /* 20 */
1242 sc_Nil, /* 21 */
1243 sc_Nil, /* 22 */
1244 sc_Nil, /* 23 */
1245 sc_Nil, /* 24 */
1246 sc_Nil, /* 25 */
1247 sc_Nil, /* 26 */
1248 sc_Nil, /* 27 */
1249 sc_Nil, /* 28 */
1250 sc_Nil, /* 29 */
1251 sc_Nil, /* 30 */
1252 sc_Nil, /* 31 */
1253 sc_Nil, /* 32 */
1254 sc_Nil, /* 33 */
1255 sc_Nil, /* 34 */
1256 sc_Nil, /* 35 */
1257 sc_Nil, /* 36 */
1258 sc_Nil, /* 37 */
1259 sc_Nil, /* 38 */
1260 sc_Nil, /* 39 */
1261 sc_Nil, /* 40 */
1262 sc_Nil, /* 41 */
1263 sc_Nil, /* 42 */
1264 sc_Nil, /* 43 */
1265 sc_Nil, /* 44 */
1266 sc_Nil, /* 45 */
1267 sc_Nil, /* 46 */
1268 sc_Nil, /* 47 */
1269 sc_Nil, /* 48 */
1270 sc_Nil, /* 49 */
1271 sc_Nil, /* 50 */
1272 sc_Nil, /* 51 */
1273 sc_Nil, /* 52 */
1274 sc_Nil, /* 53 */
1275 sc_Nil, /* 54 */
1276 sc_Nil, /* 55 */
1277 sc_Nil, /* 56 */
1278 sc_Nil, /* 57 */
1279 sc_Nil, /* 58 */
1280 sc_Nil, /* 59 */
1281 sc_Nil, /* 60 */
1282 sc_Nil, /* 61 */
1283 sc_Nil, /* 62 */
1284 sc_Nil, /* 63 */
1285 sc_Nil, /* 64 */
1286 sc_Nil, /* 65 */
1287 sc_Nil, /* 66 */
1288 sc_Nil, /* 67 */
1289 sc_Nil, /* 68 */
1290 sc_Nil, /* 69 */
1291 sc_Nil, /* 70 */
1292 sc_Nil, /* 71 */
1293 sc_Nil, /* 72 */
1294 sc_Nil, /* 73 */
1295 sc_Nil, /* 74 */
1296 sc_Nil, /* 75 */
1297 sc_Nil, /* 76 */
1298 sc_Nil, /* 77 */
1299 sc_Nil, /* 78 */
1300 sc_Nil, /* 79 */
1301 sc_Nil, /* 80 */
1302 sc_Nil, /* 81 */
1303 sc_Nil, /* 82 */
1304 sc_Nil, /* 83 */
1305 sc_Nil, /* 84 */
1306 sc_Nil, /* 85 */
1307 sc_Nil, /* 86 */
1308 sc_Nil, /* 87 */
1309 sc_Nil, /* 88 */
1310 sc_Nil, /* 89 */
1311 sc_Nil, /* 90 */
1312 sc_Nil, /* 91 */
1313 sc_Nil, /* 92 */
1314 sc_Nil, /* 93 */
1315 sc_Nil, /* 94 */
1316 sc_Nil, /* 95 */
1317 sc_Nil, /* 96 */
1318 sc_Nil, /* 97 */
1319 sc_Nil, /* 98 */
1320 sc_Nil, /* 99 */
1321 sc_Text, /* 100: C_BLOCK block start/end */
1322 sc_Text, /* 101: C_FCN function start/end */
1323 sc_Info, /* 102: C_EOS end of struct/union/enum */
1324 sc_Nil, /* 103: C_FILE file start */
1325 sc_Nil, /* 104: C_LINE line number */
1326 sc_Nil, /* 105: C_ALIAS combined type info */
1327 sc_Nil, /* 106: C_HIDDEN ??? */
1328 };
1329
1330 /* Convert COFF storage class to ECOFF symbol type. */
1331 static const st_t map_coff_sym_type[ (int) C_MAX ] = {
1332 st_Nil, /* 0: C_NULL */
1333 st_Local, /* 1: C_AUTO auto var */
1334 st_Global, /* 2: C_EXT external */
1335 st_Static, /* 3: C_STAT static */
1336 st_Local, /* 4: C_REG register */
1337 st_Global, /* 5: C_EXTDEF ??? */
1338 st_Label, /* 6: C_LABEL label */
1339 st_Label, /* 7: C_ULABEL user label */
1340 st_Member, /* 8: C_MOS member of struct */
1341 st_Param, /* 9: C_ARG argument */
1342 st_Block, /* 10: C_STRTAG struct tag */
1343 st_Member, /* 11: C_MOU member of union */
1344 st_Block, /* 12: C_UNTAG union tag */
1345 st_Typedef, /* 13: C_TPDEF typedef */
1346 st_Static, /* 14: C_USTATIC ??? */
1347 st_Block, /* 15: C_ENTAG enum tag */
1348 st_Member, /* 16: C_MOE member of enum */
1349 st_Param, /* 17: C_REGPARM register parameter */
1350 st_Member, /* 18; C_FIELD bitfield */
1351 st_Nil, /* 19 */
1352 st_Nil, /* 20 */
1353 st_Nil, /* 21 */
1354 st_Nil, /* 22 */
1355 st_Nil, /* 23 */
1356 st_Nil, /* 24 */
1357 st_Nil, /* 25 */
1358 st_Nil, /* 26 */
1359 st_Nil, /* 27 */
1360 st_Nil, /* 28 */
1361 st_Nil, /* 29 */
1362 st_Nil, /* 30 */
1363 st_Nil, /* 31 */
1364 st_Nil, /* 32 */
1365 st_Nil, /* 33 */
1366 st_Nil, /* 34 */
1367 st_Nil, /* 35 */
1368 st_Nil, /* 36 */
1369 st_Nil, /* 37 */
1370 st_Nil, /* 38 */
1371 st_Nil, /* 39 */
1372 st_Nil, /* 40 */
1373 st_Nil, /* 41 */
1374 st_Nil, /* 42 */
1375 st_Nil, /* 43 */
1376 st_Nil, /* 44 */
1377 st_Nil, /* 45 */
1378 st_Nil, /* 46 */
1379 st_Nil, /* 47 */
1380 st_Nil, /* 48 */
1381 st_Nil, /* 49 */
1382 st_Nil, /* 50 */
1383 st_Nil, /* 51 */
1384 st_Nil, /* 52 */
1385 st_Nil, /* 53 */
1386 st_Nil, /* 54 */
1387 st_Nil, /* 55 */
1388 st_Nil, /* 56 */
1389 st_Nil, /* 57 */
1390 st_Nil, /* 58 */
1391 st_Nil, /* 59 */
1392 st_Nil, /* 60 */
1393 st_Nil, /* 61 */
1394 st_Nil, /* 62 */
1395 st_Nil, /* 63 */
1396 st_Nil, /* 64 */
1397 st_Nil, /* 65 */
1398 st_Nil, /* 66 */
1399 st_Nil, /* 67 */
1400 st_Nil, /* 68 */
1401 st_Nil, /* 69 */
1402 st_Nil, /* 70 */
1403 st_Nil, /* 71 */
1404 st_Nil, /* 72 */
1405 st_Nil, /* 73 */
1406 st_Nil, /* 74 */
1407 st_Nil, /* 75 */
1408 st_Nil, /* 76 */
1409 st_Nil, /* 77 */
1410 st_Nil, /* 78 */
1411 st_Nil, /* 79 */
1412 st_Nil, /* 80 */
1413 st_Nil, /* 81 */
1414 st_Nil, /* 82 */
1415 st_Nil, /* 83 */
1416 st_Nil, /* 84 */
1417 st_Nil, /* 85 */
1418 st_Nil, /* 86 */
1419 st_Nil, /* 87 */
1420 st_Nil, /* 88 */
1421 st_Nil, /* 89 */
1422 st_Nil, /* 90 */
1423 st_Nil, /* 91 */
1424 st_Nil, /* 92 */
1425 st_Nil, /* 93 */
1426 st_Nil, /* 94 */
1427 st_Nil, /* 95 */
1428 st_Nil, /* 96 */
1429 st_Nil, /* 97 */
1430 st_Nil, /* 98 */
1431 st_Nil, /* 99 */
1432 st_Block, /* 100: C_BLOCK block start/end */
1433 st_Proc, /* 101: C_FCN function start/end */
1434 st_End, /* 102: C_EOS end of struct/union/enum */
1435 st_File, /* 103: C_FILE file start */
1436 st_Nil, /* 104: C_LINE line number */
1437 st_Nil, /* 105: C_ALIAS combined type info */
1438 st_Nil, /* 106: C_HIDDEN ??? */
1439 };
1440
1441 /* Map COFF derived types to ECOFF type qualifiers. */
1442 static const tq_t map_coff_derived_type[ (int) DT_MAX ] = {
1443 tq_Nil, /* 0: DT_NON no more qualifiers */
1444 tq_Ptr, /* 1: DT_PTR pointer */
1445 tq_Proc, /* 2: DT_FCN function */
1446 tq_Array, /* 3: DT_ARY array */
1447 };
1448
1449
1450 /* Keep track of different sized allocation requests. */
1451 static alloc_info_t alloc_counts[ (int) alloc_type_last ];
1452
1453 \f
1454 /* Pointers and such to the original symbol table that is read in. */
1455 static struct filehdr orig_file_header; /* global object file header */
1456
1457 static HDRR orig_sym_hdr; /* symbolic header on input */
1458 static char *orig_linenum; /* line numbers */
1459 static DNR *orig_dense; /* dense numbers */
1460 static PDR *orig_procs; /* procedures */
1461 static SYMR *orig_local_syms; /* local symbols */
1462 static OPTR *orig_opt_syms; /* optimization symbols */
1463 static AUXU *orig_aux_syms; /* auxiliary symbols */
1464 static char *orig_local_strs; /* local strings */
1465 static char *orig_ext_strs; /* external strings */
1466 static FDR *orig_files; /* file descriptors */
1467 static symint_t *orig_rfds; /* relative file desc's */
1468 static EXTR *orig_ext_syms; /* external symbols */
1469
1470 /* Macros to convert an index into a given object within the original
1471 symbol table. */
1472 #define CHECK(num,max,str) \
1473 (((unsigned long) num > (unsigned long) max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1474
1475 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1476 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1477 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1478 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1479 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1480 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1481 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1482 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1483 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1484 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1485 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1486
1487 /* Various other statics. */
1488 static HDRR symbolic_header; /* symbolic header */
1489 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1490 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1491 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1492 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1493 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1494 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1495 static unsigned long file_offset = 0; /* current file offset */
1496 static unsigned long max_file_offset = 0; /* maximum file offset */
1497 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1498 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1499 static char *progname = (char *) 0; /* program name for errors */
1500 static const char *input_name = "stdin"; /* name of input file */
1501 static char *object_name = (char *) 0; /* tmp. name of object file */
1502 static char *obj_in_name = (char *) 0; /* name of input object file */
1503 static char *cur_line_start = (char *) 0; /* current line read in */
1504 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1505 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1506 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1507 static long line_number = 0; /* current input line number */
1508 static int debug = 0; /* trace functions */
1509 static int version = 0; /* print version # */
1510 static int verbose = 0;
1511 static int had_errors = 0; /* != 0 if errors were found */
1512 static int rename_output = 0; /* != 0 if rename output file*/
1513 static int delete_input = 0; /* != 0 if delete input after done */
1514 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1515
1516
1517 /* Pseudo symbol to use when putting stabs into the symbol table. */
1518 #ifndef STABS_SYMBOL
1519 #define STABS_SYMBOL "@stabs"
1520 #endif
1521
1522 static const char stabs_symbol[] = STABS_SYMBOL;
1523
1524 \f
1525 /* Forward reference for functions. See the definition for more details. */
1526
1527 #ifndef STATIC
1528 #define STATIC static
1529 #endif
1530
1531 STATIC int out_of_bounds (symint_t, symint_t, const char *, int);
1532 STATIC shash_t *hash_string (const char *, Ptrdiff_t, shash_t **, symint_t *);
1533 STATIC symint_t add_string (varray_t *, shash_t **, const char *, const char *,
1534 shash_t **);
1535 STATIC symint_t add_local_symbol (const char *, const char *, st_t, sc_t,
1536 symint_t, symint_t);
1537 STATIC symint_t add_ext_symbol (EXTR *, int);
1538 STATIC symint_t add_aux_sym_symint (symint_t);
1539 STATIC symint_t add_aux_sym_rndx (int, symint_t);
1540 STATIC symint_t add_aux_sym_tir (type_info_t *, hash_state_t, thash_t **);
1541 STATIC tag_t * get_tag (const char *, const char *, symint_t, bt_t);
1542 STATIC void add_unknown_tag (tag_t *);
1543 STATIC void add_procedure (const char *, const char *);
1544 STATIC void initialize_init_file (void);
1545 STATIC void add_file (const char *, const char *);
1546 STATIC void add_bytes (varray_t *, char *, Size_t);
1547 STATIC void add_varray_page (varray_t *);
1548 STATIC void update_headers (void);
1549 STATIC void write_varray (varray_t *, off_t, const char *);
1550 STATIC void write_object (void);
1551 STATIC const char *st_to_string (st_t);
1552 STATIC const char *sc_to_string (sc_t);
1553 STATIC char *read_line (void);
1554 STATIC void parse_input (void);
1555 STATIC void mark_stabs (const char *);
1556 STATIC void parse_begin (const char *);
1557 STATIC void parse_bend (const char *);
1558 STATIC void parse_def (const char *);
1559 STATIC void parse_end (const char *);
1560 STATIC void parse_ent (const char *);
1561 STATIC void parse_file (const char *);
1562 STATIC void parse_stabs_common (const char *, const char *, const char *);
1563 STATIC void parse_stabs (const char *);
1564 STATIC void parse_stabn (const char *);
1565 STATIC page_t *read_seek (Size_t, off_t, const char *);
1566 STATIC void copy_object (void);
1567
1568 STATIC void catch_signal (int) ATTRIBUTE_NORETURN;
1569 STATIC page_t *allocate_page (void);
1570 STATIC page_t *allocate_multiple_pages (Size_t);
1571 STATIC void free_multiple_pages (page_t *, Size_t);
1572
1573 #ifndef MALLOC_CHECK
1574 STATIC page_t *allocate_cluster (Size_t);
1575 #endif
1576
1577 STATIC forward_t *allocate_forward (void);
1578 STATIC scope_t *allocate_scope (void);
1579 STATIC shash_t *allocate_shash (void);
1580 STATIC tag_t *allocate_tag (void);
1581 STATIC thash_t *allocate_thash (void);
1582 STATIC thead_t *allocate_thead (void);
1583 STATIC vlinks_t *allocate_vlinks (void);
1584
1585 STATIC void free_forward (forward_t *);
1586 STATIC void free_scope (scope_t *);
1587 STATIC void free_tag (tag_t *);
1588 STATIC void free_thead (thead_t *);
1589
1590 extern char *optarg;
1591 extern int optind;
1592 extern int opterr;
1593 \f
1594 /* List of assembler pseudo ops and beginning sequences that need
1595 special actions. Someday, this should be a hash table, and such,
1596 but for now a linear list of names and calls to memcmp will
1597 do...... */
1598
1599 typedef struct _pseudo_ops {
1600 const char *const name; /* pseudo-op in ascii */
1601 const int len; /* length of name to compare */
1602 void (*const func) (const char *); /* function to handle line */
1603 } pseudo_ops_t;
1604
1605 static const pseudo_ops_t pseudo_ops[] = {
1606 { "#.def", sizeof("#.def")-1, parse_def },
1607 { "#.begin", sizeof("#.begin")-1, parse_begin },
1608 { "#.bend", sizeof("#.bend")-1, parse_bend },
1609 { ".end", sizeof(".end")-1, parse_end },
1610 { ".ent", sizeof(".ent")-1, parse_ent },
1611 { ".file", sizeof(".file")-1, parse_file },
1612 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1613 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1614 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1615 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1616 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1617 };
1618
1619 \f
1620 /* Command line options for getopt_long. */
1621
1622 static const struct option options[] =
1623 {
1624 { "version", 0, 0, 'V' },
1625 { "verbose", 0, 0, 'v' },
1626 { 0, 0, 0, 0 }
1627 };
1628 \f
1629 /* Add a page to a varray object. */
1630
1631 STATIC void
1632 add_varray_page (varray_t *vp)
1633 {
1634 vlinks_t *new_links = allocate_vlinks ();
1635
1636 #ifdef MALLOC_CHECK
1637 if (vp->object_size > 1)
1638 new_links->datum = xcalloc (1, vp->object_size);
1639 else
1640 #endif
1641 new_links->datum = allocate_page ();
1642
1643 alloc_counts[ (int) alloc_type_varray ].total_alloc++;
1644 alloc_counts[ (int) alloc_type_varray ].total_pages++;
1645
1646 new_links->start_index = vp->num_allocated;
1647 vp->objects_last_page = 0;
1648
1649 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1650 vp->first = vp->last = new_links;
1651 else
1652 { /* 2nd or greater allocation */
1653 new_links->prev = vp->last;
1654 vp->last->next = new_links;
1655 vp->last = new_links;
1656 }
1657 }
1658
1659 \f
1660 /* Compute hash code (from tree.c) */
1661
1662 #define HASHBITS 30
1663
1664 STATIC shash_t *
1665 hash_string (const char *text, Ptrdiff_t hash_len, shash_t **hash_tbl,
1666 symint_t *ret_hash_index)
1667 {
1668 unsigned long hi;
1669 Ptrdiff_t i;
1670 shash_t *ptr;
1671 int first_ch = *text;
1672
1673 hi = hash_len;
1674 for (i = 0; i < hash_len; i++)
1675 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1676
1677 hi &= (1 << HASHBITS) - 1;
1678 hi %= SHASH_SIZE;
1679
1680 if (ret_hash_index != (symint_t *) 0)
1681 *ret_hash_index = hi;
1682
1683 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1684 if ((symint_t) hash_len == ptr->len
1685 && first_ch == ptr->string[0]
1686 && memcmp (text, ptr->string, hash_len) == 0)
1687 break;
1688
1689 return ptr;
1690 }
1691
1692 \f
1693 /* Add a string (and null pad) to one of the string tables. A
1694 consequence of hashing strings, is that we don't let strings cross
1695 page boundaries. The extra nulls will be ignored. VP is a string
1696 virtual array, HASH_TBL a pointer to the hash table, the string
1697 starts at START and the position one byte after the string is given
1698 with END_P1, the resulting hash pointer is returned in RET_HASH. */
1699
1700 STATIC symint_t
1701 add_string (varray_t *vp, shash_t **hash_tbl, const char *start,
1702 const char *end_p1, shash_t **ret_hash)
1703 {
1704 Ptrdiff_t len = end_p1 - start;
1705 shash_t *hash_ptr;
1706 symint_t hi;
1707
1708 if (len >= (Ptrdiff_t) PAGE_USIZE)
1709 fatal ("string too big (%ld bytes)", (long) len);
1710
1711 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1712 if (hash_ptr == (shash_t *) 0)
1713 {
1714 char *p;
1715
1716 if (vp->objects_last_page + len >= (long) PAGE_USIZE)
1717 {
1718 vp->num_allocated
1719 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1720 add_varray_page (vp);
1721 }
1722
1723 hash_ptr = allocate_shash ();
1724 hash_ptr->next = hash_tbl[hi];
1725 hash_tbl[hi] = hash_ptr;
1726
1727 hash_ptr->len = len;
1728 hash_ptr->indx = vp->num_allocated;
1729 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1730
1731 vp->objects_last_page += len+1;
1732 vp->num_allocated += len+1;
1733
1734 while (len-- > 0)
1735 *p++ = *start++;
1736
1737 *p = '\0';
1738 }
1739
1740 if (ret_hash != (shash_t **) 0)
1741 *ret_hash = hash_ptr;
1742
1743 return hash_ptr->indx;
1744 }
1745
1746 \f
1747 /* Add a local symbol. The symbol string starts at STR_START and the
1748 first byte after it is marked by STR_END_P1. The symbol has type
1749 TYPE and storage class STORAGE and value VALUE. INDX is an index
1750 to local/aux. symbols. */
1751
1752 STATIC symint_t
1753 add_local_symbol (const char *str_start, const char *str_end_p1, st_t type,
1754 sc_t storage, symint_t value, symint_t indx)
1755 {
1756 symint_t ret;
1757 SYMR *psym;
1758 scope_t *pscope;
1759 thead_t *ptag_head;
1760 tag_t *ptag;
1761 tag_t *ptag_next;
1762 varray_t *vp = &cur_file_ptr->symbols;
1763 int scope_delta = 0;
1764 shash_t *hash_ptr = (shash_t *) 0;
1765
1766 if (vp->objects_last_page == vp->objects_per_page)
1767 add_varray_page (vp);
1768
1769 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1770
1771 psym->value = value;
1772 psym->st = (unsigned) type;
1773 psym->sc = (unsigned) storage;
1774 psym->index = indx;
1775 psym->iss = (str_start == (const char *) 0)
1776 ? 0
1777 : add_string (&cur_file_ptr->strings,
1778 &cur_file_ptr->shash_head[0],
1779 str_start,
1780 str_end_p1,
1781 &hash_ptr);
1782
1783 ret = vp->num_allocated++;
1784
1785 if (MIPS_IS_STAB (psym))
1786 return ret;
1787
1788 /* Save the symbol within the hash table if this is a static
1789 item, and it has a name. */
1790 if (hash_ptr != (shash_t *) 0
1791 && (type == st_Global || type == st_Static || type == st_Label
1792 || type == st_Proc || type == st_StaticProc))
1793 hash_ptr->sym_ptr = psym;
1794
1795 /* push or pop a scope if appropriate. */
1796 switch (type)
1797 {
1798 default:
1799 break;
1800
1801 case st_File: /* beginning of file */
1802 case st_Proc: /* procedure */
1803 case st_StaticProc: /* static procedure */
1804 case st_Block: /* begin scope */
1805 pscope = allocate_scope ();
1806 pscope->prev = cur_file_ptr->cur_scope;
1807 pscope->lsym = psym;
1808 pscope->lnumber = ret;
1809 pscope->type = type;
1810 cur_file_ptr->cur_scope = pscope;
1811
1812 if (type != st_File)
1813 scope_delta = 1;
1814
1815 /* For every block type except file, struct, union, or
1816 enumeration blocks, push a level on the tag stack. We omit
1817 file types, so that tags can span file boundaries. */
1818 if (type != st_File && storage != sc_Info)
1819 {
1820 ptag_head = allocate_thead ();
1821 ptag_head->first_tag = 0;
1822 ptag_head->prev = cur_tag_head;
1823 cur_tag_head = ptag_head;
1824 }
1825 break;
1826
1827 case st_End:
1828 pscope = cur_file_ptr->cur_scope;
1829 if (pscope == (scope_t *) 0)
1830 error ("internal error, too many st_End's");
1831
1832 else
1833 {
1834 st_t begin_type = (st_t) pscope->lsym->st;
1835
1836 if (begin_type != st_File)
1837 scope_delta = -1;
1838
1839 /* Except for file, structure, union, or enumeration end
1840 blocks remove all tags created within this scope. */
1841 if (begin_type != st_File && storage != sc_Info)
1842 {
1843 ptag_head = cur_tag_head;
1844 cur_tag_head = ptag_head->prev;
1845
1846 for (ptag = ptag_head->first_tag;
1847 ptag != (tag_t *) 0;
1848 ptag = ptag_next)
1849 {
1850 if (ptag->forward_ref != (forward_t *) 0)
1851 add_unknown_tag (ptag);
1852
1853 ptag_next = ptag->same_block;
1854 ptag->hash_ptr->tag_ptr = ptag->same_name;
1855 free_tag (ptag);
1856 }
1857
1858 free_thead (ptag_head);
1859 }
1860
1861 cur_file_ptr->cur_scope = pscope->prev;
1862 psym->index = pscope->lnumber; /* blk end gets begin sym # */
1863
1864 if (storage != sc_Info)
1865 psym->iss = pscope->lsym->iss; /* blk end gets same name */
1866
1867 if (begin_type == st_File || begin_type == st_Block)
1868 pscope->lsym->index = ret+1; /* block begin gets next sym # */
1869
1870 /* Functions push two or more aux words as follows:
1871 1st word: index+1 of the end symbol
1872 2nd word: type of the function (plus any aux words needed).
1873 Also, tie the external pointer back to the function begin symbol. */
1874 else
1875 {
1876 symint_t type;
1877 pscope->lsym->index = add_aux_sym_symint (ret+1);
1878 type = add_aux_sym_tir (&last_func_type_info,
1879 hash_no,
1880 &cur_file_ptr->thash_head[0]);
1881 if (last_func_eptr)
1882 {
1883 last_func_eptr->ifd = cur_file_ptr->file_index;
1884
1885 /* The index for an external st_Proc symbol is the index
1886 of the st_Proc symbol in the local symbol table. */
1887 last_func_eptr->asym.index = psym->index;
1888 }
1889 }
1890
1891 free_scope (pscope);
1892 }
1893 }
1894
1895 cur_file_ptr->nested_scopes += scope_delta;
1896
1897 if (debug && type != st_File
1898 && (debug > 2 || type == st_Block || type == st_End
1899 || type == st_Proc || type == st_StaticProc))
1900 {
1901 const char *sc_str = sc_to_string (storage);
1902 const char *st_str = st_to_string (type);
1903 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1904
1905 fprintf (stderr,
1906 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1907 value, depth, sc_str);
1908
1909 if (str_start && str_end_p1 - str_start > 0)
1910 fprintf (stderr, " st= %-11s name= %.*s\n",
1911 st_str, (int) (str_end_p1 - str_start), str_start);
1912 else
1913 {
1914 Size_t len = strlen (st_str);
1915 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str);
1916 }
1917 }
1918
1919 return ret;
1920 }
1921
1922 \f
1923 /* Add an external symbol with symbol pointer ESYM and file index
1924 IFD. */
1925
1926 STATIC symint_t
1927 add_ext_symbol (EXTR *esym, int ifd)
1928 {
1929 const char *str_start; /* first byte in string */
1930 const char *str_end_p1; /* first byte after string */
1931 EXTR *psym;
1932 varray_t *vp = &ext_symbols;
1933 shash_t *hash_ptr = (shash_t *) 0;
1934
1935 str_start = ORIG_ESTRS (esym->asym.iss);
1936 str_end_p1 = str_start + strlen (str_start);
1937
1938 if (debug > 1)
1939 {
1940 long value = esym->asym.value;
1941 const char *sc_str = sc_to_string (esym->asym.sc);
1942 const char *st_str = st_to_string (esym->asym.st);
1943
1944 fprintf (stderr,
1945 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
1946 value, ifd, sc_str);
1947
1948 if (str_start && str_end_p1 - str_start > 0)
1949 fprintf (stderr, " st= %-11s name= %.*s\n",
1950 st_str, (int) (str_end_p1 - str_start), str_start);
1951 else
1952 fprintf (stderr, " st= %s\n", st_str);
1953 }
1954
1955 if (vp->objects_last_page == vp->objects_per_page)
1956 add_varray_page (vp);
1957
1958 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
1959
1960 *psym = *esym;
1961 psym->ifd = ifd;
1962 psym->asym.index = indexNil;
1963 psym->asym.iss = (str_start == (const char *) 0)
1964 ? 0
1965 : add_string (&ext_strings,
1966 &ext_str_hash[0],
1967 str_start,
1968 str_end_p1,
1969 &hash_ptr);
1970
1971 hash_ptr->esym_ptr = psym;
1972 return vp->num_allocated++;
1973 }
1974
1975 \f
1976 /* Add an auxiliary symbol (passing a symint). */
1977
1978 STATIC symint_t
1979 add_aux_sym_symint (symint_t aux_word)
1980 {
1981 AUXU *aux_ptr;
1982 efdr_t *file_ptr = cur_file_ptr;
1983 varray_t *vp = &file_ptr->aux_syms;
1984
1985 if (vp->objects_last_page == vp->objects_per_page)
1986 add_varray_page (vp);
1987
1988 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
1989 aux_ptr->isym = aux_word;
1990
1991 return vp->num_allocated++;
1992 }
1993
1994
1995 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1996
1997 STATIC symint_t
1998 add_aux_sym_rndx (int file_index, symint_t sym_index)
1999 {
2000 AUXU *aux_ptr;
2001 efdr_t *file_ptr = cur_file_ptr;
2002 varray_t *vp = &file_ptr->aux_syms;
2003
2004 if (vp->objects_last_page == vp->objects_per_page)
2005 add_varray_page (vp);
2006
2007 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2008 aux_ptr->rndx.rfd = file_index;
2009 aux_ptr->rndx.index = sym_index;
2010
2011 return vp->num_allocated++;
2012 }
2013
2014 \f
2015 /* Add an auxiliary symbol (passing the basic type and possibly
2016 type qualifiers). */
2017
2018 STATIC symint_t
2019 add_aux_sym_tir (type_info_t *t, hash_state_t state, thash_t **hash_tbl)
2020 {
2021 AUXU *aux_ptr;
2022 efdr_t *file_ptr = cur_file_ptr;
2023 varray_t *vp = &file_ptr->aux_syms;
2024 static AUXU init_aux;
2025 symint_t ret;
2026 int i;
2027 AUXU aux;
2028
2029 aux = init_aux;
2030 aux.ti.bt = (int) t->basic_type;
2031 aux.ti.continued = 0;
2032 aux.ti.fBitfield = t->bitfield;
2033
2034 aux.ti.tq0 = (int) t->type_qualifiers[0];
2035 aux.ti.tq1 = (int) t->type_qualifiers[1];
2036 aux.ti.tq2 = (int) t->type_qualifiers[2];
2037 aux.ti.tq3 = (int) t->type_qualifiers[3];
2038 aux.ti.tq4 = (int) t->type_qualifiers[4];
2039 aux.ti.tq5 = (int) t->type_qualifiers[5];
2040
2041
2042 /* For anything that adds additional information, we must not hash,
2043 so check here, and reset our state. */
2044
2045 if (state != hash_no
2046 && (t->type_qualifiers[0] == tq_Array
2047 || t->type_qualifiers[1] == tq_Array
2048 || t->type_qualifiers[2] == tq_Array
2049 || t->type_qualifiers[3] == tq_Array
2050 || t->type_qualifiers[4] == tq_Array
2051 || t->type_qualifiers[5] == tq_Array
2052 || t->basic_type == bt_Struct
2053 || t->basic_type == bt_Union
2054 || t->basic_type == bt_Enum
2055 || t->bitfield
2056 || t->num_dims > 0))
2057 state = hash_no;
2058
2059 /* See if we can hash this type, and save some space, but some types
2060 can't be hashed (because they contain arrays or continuations),
2061 and others can be put into the hash list, but cannot use existing
2062 types because other aux entries precede this one. */
2063
2064 if (state != hash_no)
2065 {
2066 thash_t *hash_ptr;
2067 symint_t hi;
2068
2069 hi = aux.isym & ((1 << HASHBITS) - 1);
2070 hi %= THASH_SIZE;
2071
2072 for (hash_ptr = hash_tbl[hi];
2073 hash_ptr != (thash_t *) 0;
2074 hash_ptr = hash_ptr->next)
2075 {
2076 if (aux.isym == hash_ptr->type.isym)
2077 break;
2078 }
2079
2080 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2081 return hash_ptr->indx;
2082
2083 if (hash_ptr == (thash_t *) 0)
2084 {
2085 hash_ptr = allocate_thash ();
2086 hash_ptr->next = hash_tbl[hi];
2087 hash_ptr->type = aux;
2088 hash_ptr->indx = vp->num_allocated;
2089 hash_tbl[hi] = hash_ptr;
2090 }
2091 }
2092
2093 /* Everything is set up, add the aux symbol. */
2094 if (vp->objects_last_page == vp->objects_per_page)
2095 add_varray_page (vp);
2096
2097 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2098 *aux_ptr = aux;
2099
2100 ret = vp->num_allocated++;
2101
2102 /* Add bitfield length if it exists.
2103
2104 NOTE: Mips documentation claims bitfield goes at the end of the
2105 AUX record, but the DECstation compiler emits it here.
2106 (This would only make a difference for enum bitfields.)
2107
2108 Also note: We use the last size given since gcc may emit 2
2109 for an enum bitfield. */
2110
2111 if (t->bitfield)
2112 (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes-1]);
2113
2114
2115 /* Add tag information if needed. Structure, union, and enum
2116 references add 2 aux symbols: a [file index, symbol index]
2117 pointer to the structure type, and the current file index. */
2118
2119 if (t->basic_type == bt_Struct
2120 || t->basic_type == bt_Union
2121 || t->basic_type == bt_Enum)
2122 {
2123 symint_t file_index = t->tag_ptr->ifd;
2124 symint_t sym_index = t->tag_ptr->indx;
2125
2126 if (t->unknown_tag)
2127 {
2128 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2129 (void) add_aux_sym_symint ((symint_t)-1);
2130 }
2131 else if (sym_index != indexNil)
2132 {
2133 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2134 (void) add_aux_sym_symint (file_index);
2135 }
2136 else
2137 {
2138 forward_t *forward_ref = allocate_forward ();
2139
2140 forward_ref->type_ptr = aux_ptr;
2141 forward_ref->next = t->tag_ptr->forward_ref;
2142 t->tag_ptr->forward_ref = forward_ref;
2143
2144 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2145 forward_ref->index_ptr
2146 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2147
2148 (void) add_aux_sym_symint (file_index);
2149 forward_ref->ifd_ptr
2150 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2151 }
2152 }
2153
2154 /* Add information about array bounds if they exist. */
2155 for (i = 0; i < t->num_dims; i++)
2156 {
2157 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2158 cur_file_ptr->int_type);
2159
2160 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2161 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2162 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2163 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2164 ? 0
2165 : (t->sizes[i] * 8) / t->dimensions[i]);
2166 };
2167
2168 /* NOTE: Mips documentation claims that the bitfield width goes here.
2169 But it needs to be emitted earlier. */
2170
2171 return ret;
2172 }
2173
2174 \f
2175 /* Add a tag to the tag table (unless it already exists). */
2176
2177 STATIC tag_t *
2178 get_tag (const char *tag_start, /* 1st byte of tag name */
2179 const char *tag_end_p1, /* 1st byte after tag name */
2180 symint_t indx, /* index of tag start block */
2181 bt_t basic_type) /* bt_Struct, bt_Union, or bt_Enum */
2182
2183 {
2184 shash_t *hash_ptr;
2185 tag_t *tag_ptr;
2186 hash_ptr = hash_string (tag_start,
2187 tag_end_p1 - tag_start,
2188 &tag_hash[0],
2189 (symint_t *) 0);
2190
2191 if (hash_ptr != (shash_t *) 0
2192 && hash_ptr->tag_ptr != (tag_t *) 0)
2193 {
2194 tag_ptr = hash_ptr->tag_ptr;
2195 if (indx != indexNil)
2196 {
2197 tag_ptr->basic_type = basic_type;
2198 tag_ptr->ifd = cur_file_ptr->file_index;
2199 tag_ptr->indx = indx;
2200 }
2201 return tag_ptr;
2202 }
2203
2204 (void) add_string (&tag_strings,
2205 &tag_hash[0],
2206 tag_start,
2207 tag_end_p1,
2208 &hash_ptr);
2209
2210 tag_ptr = allocate_tag ();
2211 tag_ptr->forward_ref = (forward_t *) 0;
2212 tag_ptr->hash_ptr = hash_ptr;
2213 tag_ptr->same_name = hash_ptr->tag_ptr;
2214 tag_ptr->basic_type = basic_type;
2215 tag_ptr->indx = indx;
2216 tag_ptr->ifd = (indx == indexNil
2217 ? (symint_t) -1 : cur_file_ptr->file_index);
2218 tag_ptr->same_block = cur_tag_head->first_tag;
2219
2220 cur_tag_head->first_tag = tag_ptr;
2221 hash_ptr->tag_ptr = tag_ptr;
2222
2223 return tag_ptr;
2224 }
2225
2226 \f
2227 /* Add an unknown {struct, union, enum} tag. */
2228
2229 STATIC void
2230 add_unknown_tag (tag_t *ptag)
2231 {
2232 shash_t *hash_ptr = ptag->hash_ptr;
2233 char *name_start = hash_ptr->string;
2234 char *name_end_p1 = name_start + hash_ptr->len;
2235 forward_t *f_next = ptag->forward_ref;
2236 forward_t *f_cur;
2237 int sym_index;
2238 int file_index = cur_file_ptr->file_index;
2239
2240 if (debug > 1)
2241 {
2242 const char *agg_type = "{unknown aggregate type}";
2243 switch (ptag->basic_type)
2244 {
2245 case bt_Struct: agg_type = "struct"; break;
2246 case bt_Union: agg_type = "union"; break;
2247 case bt_Enum: agg_type = "enum"; break;
2248 default: break;
2249 }
2250
2251 fprintf (stderr, "unknown %s %.*s found\n",
2252 agg_type, (int) hash_ptr->len, name_start);
2253 }
2254
2255 sym_index = add_local_symbol (name_start,
2256 name_end_p1,
2257 st_Block,
2258 sc_Info,
2259 (symint_t) 0,
2260 (symint_t) 0);
2261
2262 (void) add_local_symbol (name_start,
2263 name_end_p1,
2264 st_End,
2265 sc_Info,
2266 (symint_t) 0,
2267 (symint_t) 0);
2268
2269 while (f_next != (forward_t *) 0)
2270 {
2271 f_cur = f_next;
2272 f_next = f_next->next;
2273
2274 f_cur->ifd_ptr->isym = file_index;
2275 f_cur->index_ptr->rndx.index = sym_index;
2276
2277 free_forward (f_cur);
2278 }
2279
2280 return;
2281 }
2282
2283 \f
2284 /* Add a procedure to the current file's list of procedures, and record
2285 this is the current procedure. If the assembler created a PDR for
2286 this procedure, use that to initialize the current PDR. */
2287
2288 STATIC void
2289 add_procedure (const char *func_start, /* 1st byte of func name */
2290 const char *func_end_p1) /* 1st byte after func name */
2291 {
2292 PDR *new_proc_ptr;
2293 efdr_t *file_ptr = cur_file_ptr;
2294 varray_t *vp = &file_ptr->procs;
2295 symint_t value = 0;
2296 st_t proc_type = st_Proc;
2297 shash_t *shash_ptr = hash_string (func_start,
2298 func_end_p1 - func_start,
2299 &orig_str_hash[0],
2300 (symint_t *) 0);
2301
2302 if (debug)
2303 fputc ('\n', stderr);
2304
2305 if (vp->objects_last_page == vp->objects_per_page)
2306 add_varray_page (vp);
2307
2308 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2309
2310 vp->num_allocated++;
2311
2312
2313 /* Did the assembler create this procedure? If so, get the PDR information. */
2314 cur_oproc_ptr = (PDR *) 0;
2315 if (shash_ptr != (shash_t *) 0)
2316 {
2317 PDR *old_proc_ptr = shash_ptr->proc_ptr;
2318 SYMR *sym_ptr = shash_ptr->sym_ptr;
2319
2320 if (old_proc_ptr != (PDR *) 0
2321 && sym_ptr != (SYMR *) 0
2322 && ((st_t) sym_ptr->st == st_Proc || (st_t) sym_ptr->st == st_StaticProc))
2323 {
2324 cur_oproc_begin = sym_ptr;
2325 cur_oproc_end = shash_ptr->end_ptr;
2326 value = sym_ptr->value;
2327
2328 cur_oproc_ptr = old_proc_ptr;
2329 proc_type = (st_t) sym_ptr->st;
2330 *new_proc_ptr = *old_proc_ptr; /* initialize */
2331 }
2332 }
2333
2334 if (cur_oproc_ptr == (PDR *) 0)
2335 error ("did not find a PDR block for %.*s",
2336 (int) (func_end_p1 - func_start), func_start);
2337
2338 /* Determine the start of symbols. */
2339 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2340
2341 /* Push the start of the function. */
2342 (void) add_local_symbol (func_start, func_end_p1,
2343 proc_type, sc_Text,
2344 value,
2345 (symint_t) 0);
2346 }
2347
2348 \f
2349 /* Initialize the init_file structure. */
2350
2351 STATIC void
2352 initialize_init_file (void)
2353 {
2354 memset (&init_file, 0, sizeof (init_file));
2355
2356 init_file.fdr.lang = langC;
2357 init_file.fdr.fMerge = 1;
2358 init_file.fdr.glevel = GLEVEL_2;
2359
2360 #ifdef WORDS_BIG_ENDIAN
2361 init_file.fdr.fBigendian = 1;
2362 #endif
2363
2364 INITIALIZE_VARRAY (&init_file.strings, char);
2365 INITIALIZE_VARRAY (&init_file.symbols, SYMR);
2366 INITIALIZE_VARRAY (&init_file.procs, PDR);
2367 INITIALIZE_VARRAY (&init_file.aux_syms, AUXU);
2368
2369 init_file_initialized = 1;
2370 }
2371
2372 /* Add a new filename, and set up all of the file relative
2373 virtual arrays (strings, symbols, aux syms, etc.). Record
2374 where the current file structure lives. */
2375
2376 STATIC void
2377 add_file (const char *file_start, /* first byte in string */
2378 const char *file_end_p1) /* first byte after string */
2379 {
2380 static char zero_bytes[2] = { '\0', '\0' };
2381
2382 Ptrdiff_t len = file_end_p1 - file_start;
2383 int first_ch = *file_start;
2384 efdr_t *file_ptr;
2385
2386 if (debug)
2387 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start);
2388
2389 /* See if the file has already been created. */
2390 for (file_ptr = first_file;
2391 file_ptr != (efdr_t *) 0;
2392 file_ptr = file_ptr->next_file)
2393 {
2394 if (first_ch == file_ptr->name[0]
2395 && file_ptr->name[len] == '\0'
2396 && memcmp (file_start, file_ptr->name, len) == 0)
2397 {
2398 cur_file_ptr = file_ptr;
2399 break;
2400 }
2401 }
2402
2403 /* If this is a new file, create it. */
2404 if (file_ptr == (efdr_t *) 0)
2405 {
2406 if (file_desc.objects_last_page == file_desc.objects_per_page)
2407 add_varray_page (&file_desc);
2408
2409 if (! init_file_initialized)
2410 initialize_init_file ();
2411
2412 file_ptr = cur_file_ptr
2413 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2414 *file_ptr = init_file;
2415
2416 file_ptr->file_index = file_desc.num_allocated++;
2417
2418 /* Allocate the string hash table. */
2419 file_ptr->shash_head = (shash_t **) allocate_page ();
2420
2421 /* Make sure 0 byte in string table is null */
2422 add_string (&file_ptr->strings,
2423 &file_ptr->shash_head[0],
2424 &zero_bytes[0],
2425 &zero_bytes[0],
2426 (shash_t **) 0);
2427
2428 if (file_end_p1 - file_start > (long) PAGE_USIZE-2)
2429 fatal ("filename goes over one page boundary");
2430
2431 /* Push the start of the filename. We assume that the filename
2432 will be stored at string offset 1. */
2433 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2434 (symint_t) 0, (symint_t) 0);
2435 file_ptr->fdr.rss = 1;
2436 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2437 file_ptr->name_len = file_end_p1 - file_start;
2438
2439 /* Update the linked list of file descriptors. */
2440 *last_file_ptr = file_ptr;
2441 last_file_ptr = &file_ptr->next_file;
2442
2443 /* Add void & int types to the file (void should be first to catch
2444 errant 0's within the index fields). */
2445 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2446 hash_yes,
2447 &cur_file_ptr->thash_head[0]);
2448
2449 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2450 hash_yes,
2451 &cur_file_ptr->thash_head[0]);
2452 }
2453 }
2454
2455 \f
2456 /* Add a stream of random bytes to a varray. */
2457
2458 STATIC void
2459 add_bytes (varray_t *vp, /* virtual array to add too */
2460 char *input_ptr, /* start of the bytes */
2461 Size_t nitems) /* # items to move */
2462 {
2463 Size_t move_items;
2464 Size_t move_bytes;
2465 char *ptr;
2466
2467 while (nitems > 0)
2468 {
2469 if (vp->objects_last_page >= vp->objects_per_page)
2470 add_varray_page (vp);
2471
2472 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2473 move_items = vp->objects_per_page - vp->objects_last_page;
2474 if (move_items > nitems)
2475 move_items = nitems;
2476
2477 move_bytes = move_items * vp->object_size;
2478 nitems -= move_items;
2479
2480 if (move_bytes >= 32)
2481 {
2482 (void) memcpy (ptr, input_ptr, move_bytes);
2483 input_ptr += move_bytes;
2484 }
2485 else
2486 {
2487 while (move_bytes-- > 0)
2488 *ptr++ = *input_ptr++;
2489 }
2490 }
2491 }
2492
2493 \f
2494 /* Convert storage class to string. */
2495
2496 STATIC const char *
2497 sc_to_string (sc_t storage_class)
2498 {
2499 switch (storage_class)
2500 {
2501 case sc_Nil: return "Nil,";
2502 case sc_Text: return "Text,";
2503 case sc_Data: return "Data,";
2504 case sc_Bss: return "Bss,";
2505 case sc_Register: return "Register,";
2506 case sc_Abs: return "Abs,";
2507 case sc_Undefined: return "Undefined,";
2508 case sc_CdbLocal: return "CdbLocal,";
2509 case sc_Bits: return "Bits,";
2510 case sc_CdbSystem: return "CdbSystem,";
2511 case sc_RegImage: return "RegImage,";
2512 case sc_Info: return "Info,";
2513 case sc_UserStruct: return "UserStruct,";
2514 case sc_SData: return "SData,";
2515 case sc_SBss: return "SBss,";
2516 case sc_RData: return "RData,";
2517 case sc_Var: return "Var,";
2518 case sc_Common: return "Common,";
2519 case sc_SCommon: return "SCommon,";
2520 case sc_VarRegister: return "VarRegister,";
2521 case sc_Variant: return "Variant,";
2522 case sc_SUndefined: return "SUndefined,";
2523 case sc_Init: return "Init,";
2524 case sc_Max: return "Max,";
2525 }
2526
2527 return "???,";
2528 }
2529
2530 \f
2531 /* Convert symbol type to string. */
2532
2533 STATIC const char *
2534 st_to_string (st_t symbol_type)
2535 {
2536 switch (symbol_type)
2537 {
2538 case st_Nil: return "Nil,";
2539 case st_Global: return "Global,";
2540 case st_Static: return "Static,";
2541 case st_Param: return "Param,";
2542 case st_Local: return "Local,";
2543 case st_Label: return "Label,";
2544 case st_Proc: return "Proc,";
2545 case st_Block: return "Block,";
2546 case st_End: return "End,";
2547 case st_Member: return "Member,";
2548 case st_Typedef: return "Typedef,";
2549 case st_File: return "File,";
2550 case st_RegReloc: return "RegReloc,";
2551 case st_Forward: return "Forward,";
2552 case st_StaticProc: return "StaticProc,";
2553 case st_Constant: return "Constant,";
2554 case st_Str: return "String,";
2555 case st_Number: return "Number,";
2556 case st_Expr: return "Expr,";
2557 case st_Type: return "Type,";
2558 case st_Max: return "Max,";
2559 }
2560
2561 return "???,";
2562 }
2563
2564 \f
2565 /* Read a line from standard input, and return the start of the buffer
2566 (which is grows if the line is too big). We split lines at the
2567 semi-colon, and return each logical line independently. */
2568
2569 STATIC char *
2570 read_line (void)
2571 {
2572 static int line_split_p = 0;
2573 int string_p = 0;
2574 int comment_p = 0;
2575 int ch;
2576 char *ptr;
2577
2578 if (cur_line_start == (char *) 0)
2579 { /* allocate initial page */
2580 cur_line_start = (char *) allocate_page ();
2581 cur_line_alloc = PAGE_SIZE;
2582 }
2583
2584 if (!line_split_p)
2585 line_number++;
2586
2587 line_split_p = 0;
2588 cur_line_nbytes = 0;
2589
2590 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2591 {
2592 if (++cur_line_nbytes >= cur_line_alloc-1)
2593 {
2594 int num_pages = cur_line_alloc / PAGE_SIZE;
2595 char *old_buffer = cur_line_start;
2596
2597 cur_line_alloc += PAGE_SIZE;
2598 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2599 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2600
2601 ptr = cur_line_start + cur_line_nbytes - 1;
2602 }
2603
2604 if (ch == '\n')
2605 {
2606 *ptr++ = '\n';
2607 *ptr = '\0';
2608 cur_line_ptr = cur_line_start;
2609 return cur_line_ptr;
2610 }
2611
2612 else if (ch == '\0')
2613 error ("null character found in input");
2614
2615 else if (!comment_p)
2616 {
2617 if (ch == '"')
2618 string_p = !string_p;
2619
2620 else if (ch == '#')
2621 comment_p++;
2622
2623 else if (ch == ';' && !string_p)
2624 {
2625 line_split_p = 1;
2626 *ptr++ = '\n';
2627 *ptr = '\0';
2628 cur_line_ptr = cur_line_start;
2629 return cur_line_ptr;
2630 }
2631 }
2632 }
2633
2634 if (ferror (stdin))
2635 pfatal_with_name (input_name);
2636
2637 cur_line_ptr = (char *) 0;
2638 return (char *) 0;
2639 }
2640
2641 \f
2642 /* Parse #.begin directives which have a label as the first argument
2643 which gives the location of the start of the block. */
2644
2645 STATIC void
2646 parse_begin (const char *start)
2647 {
2648 const char *end_p1; /* end of label */
2649 int ch;
2650 shash_t *hash_ptr; /* hash pointer to lookup label */
2651
2652 if (cur_file_ptr == (efdr_t *) 0)
2653 {
2654 error ("#.begin directive without a preceding .file directive");
2655 return;
2656 }
2657
2658 if (cur_proc_ptr == (PDR *) 0)
2659 {
2660 error ("#.begin directive without a preceding .ent directive");
2661 return;
2662 }
2663
2664 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2665 ;
2666
2667 hash_ptr = hash_string (start,
2668 end_p1 - start,
2669 &orig_str_hash[0],
2670 (symint_t *) 0);
2671
2672 if (hash_ptr == (shash_t *) 0)
2673 {
2674 error ("label %.*s not found for #.begin",
2675 (int) (end_p1 - start), start);
2676 return;
2677 }
2678
2679 if (cur_oproc_begin == (SYMR *) 0)
2680 {
2681 error ("procedure table %.*s not found for #.begin",
2682 (int) (end_p1 - start), start);
2683 return;
2684 }
2685
2686 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2687 st_Block, sc_Text,
2688 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2689 (symint_t) 0);
2690 }
2691
2692 \f
2693 /* Parse #.bend directives which have a label as the first argument
2694 which gives the location of the end of the block. */
2695
2696 STATIC void
2697 parse_bend (const char *start)
2698 {
2699 const char *end_p1; /* end of label */
2700 int ch;
2701 shash_t *hash_ptr; /* hash pointer to lookup label */
2702
2703 if (cur_file_ptr == (efdr_t *) 0)
2704 {
2705 error ("#.begin directive without a preceding .file directive");
2706 return;
2707 }
2708
2709 if (cur_proc_ptr == (PDR *) 0)
2710 {
2711 error ("#.bend directive without a preceding .ent directive");
2712 return;
2713 }
2714
2715 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2716 ;
2717
2718 hash_ptr = hash_string (start,
2719 end_p1 - start,
2720 &orig_str_hash[0],
2721 (symint_t *) 0);
2722
2723 if (hash_ptr == (shash_t *) 0)
2724 {
2725 error ("label %.*s not found for #.bend", (int) (end_p1 - start), start);
2726 return;
2727 }
2728
2729 if (cur_oproc_begin == (SYMR *) 0)
2730 {
2731 error ("procedure table %.*s not found for #.bend",
2732 (int) (end_p1 - start), start);
2733 return;
2734 }
2735
2736 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2737 st_End, sc_Text,
2738 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2739 (symint_t) 0);
2740 }
2741
2742 \f
2743 /* Parse #.def directives, which are contain standard COFF subdirectives
2744 to describe the debugging format. These subdirectives include:
2745
2746 .scl specify storage class
2747 .val specify a value
2748 .endef specify end of COFF directives
2749 .type specify the type
2750 .size specify the size of an array
2751 .dim specify an array dimension
2752 .tag specify a tag for a struct, union, or enum. */
2753
2754 STATIC void
2755 parse_def (const char *name_start)
2756 {
2757 const char *dir_start; /* start of current directive*/
2758 const char *dir_end_p1; /* end+1 of current directive*/
2759 const char *arg_start; /* start of current argument */
2760 const char *arg_end_p1; /* end+1 of current argument */
2761 const char *name_end_p1; /* end+1 of label */
2762 const char *tag_start = 0; /* start of tag name */
2763 const char *tag_end_p1 = 0; /* end+1 of tag name */
2764 sc_t storage_class = sc_Nil;
2765 st_t symbol_type = st_Nil;
2766 type_info_t t;
2767 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2768 int is_function = 0; /* != 0 if function */
2769 symint_t value = 0;
2770 symint_t indx = cur_file_ptr->void_type;
2771 int error_line = 0;
2772 symint_t arg_number;
2773 symint_t temp_array[ N_TQ ];
2774 int arg_was_number;
2775 int ch, i;
2776 Ptrdiff_t len;
2777
2778 static int inside_enumeration = 0; /* is this an enumeration? */
2779
2780
2781 /* Initialize the type information. */
2782 t = type_info_init;
2783
2784
2785 /* Search for the end of the name being defined. */
2786 /* Allow spaces and such in names for G++ templates, which produce stabs
2787 that look like:
2788
2789 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2790
2791 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2792 ;
2793
2794 if (ch == '\0')
2795 {
2796 error_line = __LINE__;
2797 saber_stop ();
2798 goto bomb_out;
2799 }
2800
2801 /* Parse the remaining subdirectives now. */
2802 dir_start = name_end_p1+1;
2803 for (;;)
2804 {
2805 while ((ch = *dir_start) == ' ' || ch == '\t')
2806 ++dir_start;
2807
2808 if (ch != '.')
2809 {
2810 error_line = __LINE__;
2811 saber_stop ();
2812 goto bomb_out;
2813 }
2814
2815 /* Are we done? */
2816 if (dir_start[1] == 'e'
2817 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2818 break;
2819
2820 /* Pick up the subdirective now. */
2821 for (dir_end_p1 = dir_start+1;
2822 (ch = *dir_end_p1) != ' ' && ch != '\t';
2823 dir_end_p1++)
2824 {
2825 if (ch == '\0' || ISSPACE (ch))
2826 {
2827 error_line = __LINE__;
2828 saber_stop ();
2829 goto bomb_out;
2830 }
2831 }
2832
2833 /* Pick up the subdirective argument now. */
2834 arg_was_number = arg_number = 0;
2835 arg_end_p1 = 0;
2836 arg_start = dir_end_p1+1;
2837 ch = *arg_start;
2838 while (ch == ' ' || ch == '\t')
2839 ch = *++arg_start;
2840
2841 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2842 {
2843 int ch2;
2844 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2845 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
2846 arg_was_number++;
2847 }
2848
2849 else if (ch == '\0' || ISSPACE (ch))
2850 {
2851 error_line = __LINE__;
2852 saber_stop ();
2853 goto bomb_out;
2854 }
2855
2856 if (!arg_was_number)
2857 {
2858 /* Allow spaces and such in names for G++ templates. */
2859 for (arg_end_p1 = arg_start+1;
2860 (ch = *arg_end_p1) != ';' && ch != '\0';
2861 arg_end_p1++)
2862 ;
2863
2864 if (ch == '\0')
2865 {
2866 error_line = __LINE__;
2867 saber_stop ();
2868 goto bomb_out;
2869 }
2870 }
2871
2872 /* Classify the directives now. */
2873 len = dir_end_p1 - dir_start;
2874 switch (dir_start[1])
2875 {
2876 default:
2877 error_line = __LINE__;
2878 saber_stop ();
2879 goto bomb_out;
2880
2881 case 'd':
2882 if (len == sizeof (".dim")-1
2883 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
2884 && arg_was_number)
2885 {
2886 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2887
2888 *t_ptr = arg_number;
2889 while (*arg_end_p1 == ',' && arg_was_number)
2890 {
2891 arg_start = arg_end_p1+1;
2892 ch = *arg_start;
2893 while (ch == ' ' || ch == '\t')
2894 ch = *++arg_start;
2895
2896 arg_was_number = 0;
2897 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2898 {
2899 int ch2;
2900 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2901 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
2902 arg_was_number++;
2903
2904 if (t_ptr == &temp_array[0])
2905 {
2906 error_line = __LINE__;
2907 saber_stop ();
2908 goto bomb_out;
2909 }
2910
2911 *--t_ptr = arg_number;
2912 }
2913 }
2914
2915 /* Reverse order of dimensions. */
2916 while (t_ptr <= &temp_array[ N_TQ-1 ])
2917 {
2918 if (t.num_dims >= N_TQ-1)
2919 {
2920 error_line = __LINE__;
2921 saber_stop ();
2922 goto bomb_out;
2923 }
2924
2925 t.dimensions[ t.num_dims++ ] = *t_ptr++;
2926 }
2927 break;
2928 }
2929 else
2930 {
2931 error_line = __LINE__;
2932 saber_stop ();
2933 goto bomb_out;
2934 }
2935
2936
2937 case 's':
2938 if (len == sizeof (".scl")-1
2939 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
2940 && arg_was_number
2941 && arg_number < ((symint_t) C_MAX))
2942 {
2943 /* If the symbol is a static or external, we have
2944 already gotten the appropriate type and class, so
2945 make sure we don't override those values. This is
2946 needed because there are some type and classes that
2947 are not in COFF, such as short data, etc. */
2948 if (symbol_type == st_Nil)
2949 {
2950 symbol_type = map_coff_sym_type[arg_number];
2951 storage_class = map_coff_storage [arg_number];
2952 }
2953 break;
2954 }
2955
2956 else if (len == sizeof (".size")-1
2957 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
2958 && arg_was_number)
2959 {
2960 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2961
2962 *t_ptr = arg_number;
2963 while (*arg_end_p1 == ',' && arg_was_number)
2964 {
2965 arg_start = arg_end_p1+1;
2966 ch = *arg_start;
2967 while (ch == ' ' || ch == '\t')
2968 ch = *++arg_start;
2969
2970 arg_was_number = 0;
2971 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2972 {
2973 int ch2;
2974 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2975 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
2976 arg_was_number++;
2977
2978 if (t_ptr == &temp_array[0])
2979 {
2980 error_line = __LINE__;
2981 saber_stop ();
2982 goto bomb_out;
2983 }
2984
2985 *--t_ptr = arg_number;
2986 }
2987 }
2988
2989 /* Reverse order of sizes. */
2990 while (t_ptr <= &temp_array[ N_TQ-1 ])
2991 {
2992 if (t.num_sizes >= N_TQ-1)
2993 {
2994 error_line = __LINE__;
2995 saber_stop ();
2996 goto bomb_out;
2997 }
2998
2999 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3000 }
3001 break;
3002 }
3003
3004 else
3005 {
3006 error_line = __LINE__;
3007 saber_stop ();
3008 goto bomb_out;
3009 }
3010
3011
3012 case 't':
3013 if (len == sizeof (".type")-1
3014 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3015 && arg_was_number)
3016 {
3017 tq_t *tq_ptr = &t.type_qualifiers[0];
3018
3019 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3020 t.basic_type = map_coff_types [(int) t.orig_type];
3021 for (i = N_TQ-1; i >= 0; i--)
3022 {
3023 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3024 & N_TMASK);
3025
3026 if (dt != (int) DT_NON)
3027 *tq_ptr++ = map_coff_derived_type [dt];
3028 }
3029
3030 /* If this is a function, ignore it, so that we don't get
3031 two entries (one from the .ent, and one for the .def
3032 that precedes it). Save the type information so that
3033 the end block can properly add it after the begin block
3034 index. For MIPS knows what reason, we must strip off
3035 the function type at this point. */
3036 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3037 {
3038 is_function = 1;
3039 tq_ptr[-1] = tq_Nil;
3040 }
3041
3042 break;
3043 }
3044
3045 else if (len == sizeof (".tag")-1
3046 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3047 {
3048 tag_start = arg_start;
3049 tag_end_p1 = arg_end_p1;
3050 break;
3051 }
3052
3053 else
3054 {
3055 error_line = __LINE__;
3056 saber_stop ();
3057 goto bomb_out;
3058 }
3059
3060
3061 case 'v':
3062 if (len == sizeof (".val")-1
3063 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3064 {
3065 if (arg_was_number)
3066 value = arg_number;
3067
3068 /* If the value is not an integer value, it must be the
3069 name of a static or global item. Look up the name in
3070 the original symbol table to pick up the storage
3071 class, symbol type, etc. */
3072 else
3073 {
3074 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3075 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3076
3077 ext_hash_ptr = hash_string (arg_start,
3078 arg_end_p1 - arg_start,
3079 &ext_str_hash[0],
3080 (symint_t *) 0);
3081
3082 if (ext_hash_ptr != (shash_t *) 0
3083 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3084 eptr = ext_hash_ptr->esym_ptr;
3085
3086 orig_hash_ptr = hash_string (arg_start,
3087 arg_end_p1 - arg_start,
3088 &orig_str_hash[0],
3089 (symint_t *) 0);
3090
3091 if ((orig_hash_ptr == (shash_t *) 0
3092 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3093 && eptr == (EXTR *) 0)
3094 {
3095 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3096 (int) (arg_end_p1 - arg_start),
3097 arg_start);
3098 value = 0;
3099 }
3100 else
3101 {
3102 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3103 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3104 ? orig_hash_ptr->sym_ptr
3105 : &eptr->asym;
3106
3107 symbol_type = (st_t) ptr->st;
3108 storage_class = (sc_t) ptr->sc;
3109 value = ptr->value;
3110 }
3111 }
3112 break;
3113 }
3114 else
3115 {
3116 error_line = __LINE__;
3117 saber_stop ();
3118 goto bomb_out;
3119 }
3120 }
3121
3122 /* Set up to find next directive. */
3123 dir_start = arg_end_p1 + 1;
3124 }
3125
3126
3127 if (storage_class == sc_Bits)
3128 {
3129 t.bitfield = 1;
3130 t.extra_sizes = 1;
3131 }
3132 else
3133 t.extra_sizes = 0;
3134
3135 if (t.num_dims > 0)
3136 {
3137 int num_real_sizes = t.num_sizes - t.extra_sizes;
3138 int diff = t.num_dims - num_real_sizes;
3139 int i = t.num_dims - 1;
3140 int j;
3141
3142 if (num_real_sizes != 1 || diff < 0)
3143 {
3144 error_line = __LINE__;
3145 saber_stop ();
3146 goto bomb_out;
3147 }
3148
3149 /* If this is an array, make sure the same number of dimensions
3150 and sizes were passed, creating extra sizes for multiply
3151 dimensioned arrays if not passed. */
3152
3153 if (diff)
3154 {
3155 for (j = ARRAY_SIZE (t.sizes) - 1; j >= 0; j--)
3156 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3157
3158 t.num_sizes = i + 1;
3159 for ( i--; i >= 0; i-- )
3160 {
3161 if (t.dimensions[ i+1 ])
3162 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3163 else
3164 t.sizes[ i ] = t.sizes[ i+1 ];
3165 }
3166 }
3167 }
3168
3169 /* Except for enumeration members & begin/ending of scopes, put the
3170 type word in the aux. symbol table. */
3171
3172 if (symbol_type == st_Block || symbol_type == st_End)
3173 indx = 0;
3174
3175 else if (inside_enumeration)
3176 indx = cur_file_ptr->void_type;
3177
3178 else
3179 {
3180 if (t.basic_type == bt_Struct
3181 || t.basic_type == bt_Union
3182 || t.basic_type == bt_Enum)
3183 {
3184 if (tag_start == (char *) 0)
3185 {
3186 error ("no tag specified for %.*s",
3187 (int) (name_end_p1 - name_start),
3188 name_start);
3189 return;
3190 }
3191
3192 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t) indexNil,
3193 t.basic_type);
3194 }
3195
3196 if (is_function)
3197 {
3198 last_func_type_info = t;
3199 last_func_eptr = eptr;
3200 return;
3201 }
3202
3203 indx = add_aux_sym_tir (&t,
3204 hash_yes,
3205 &cur_file_ptr->thash_head[0]);
3206 }
3207
3208
3209 /* If this is an external or static symbol, update the appropriate
3210 external symbol. */
3211
3212 if (eptr != (EXTR *) 0
3213 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3214 {
3215 eptr->ifd = cur_file_ptr->file_index;
3216 eptr->asym.index = indx;
3217 }
3218
3219
3220 /* Do any last minute adjustments that are necessary. */
3221 switch (symbol_type)
3222 {
3223 default:
3224 break;
3225
3226
3227 /* For the beginning of structs, unions, and enumerations, the
3228 size info needs to be passed in the value field. */
3229
3230 case st_Block:
3231 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3232 {
3233 error_line = __LINE__;
3234 saber_stop ();
3235 goto bomb_out;
3236 }
3237
3238 else
3239 value = t.sizes[0];
3240
3241 inside_enumeration = (t.orig_type == T_ENUM);
3242 break;
3243
3244
3245 /* For the end of structs, unions, and enumerations, omit the
3246 name which is always ".eos". This needs to be done last, so
3247 that any error reporting above gives the correct name. */
3248
3249 case st_End:
3250 name_start = name_end_p1 = 0;
3251 value = inside_enumeration = 0;
3252 break;
3253
3254
3255 /* Members of structures and unions that aren't bitfields, need
3256 to adjust the value from a byte offset to a bit offset.
3257 Members of enumerations do not have the value adjusted, and
3258 can be distinguished by indx == indexNil. For enumerations,
3259 update the maximum enumeration value. */
3260
3261 case st_Member:
3262 if (!t.bitfield && !inside_enumeration)
3263 value *= 8;
3264
3265 break;
3266 }
3267
3268
3269 /* Add the symbol, except for global symbols outside of functions,
3270 for which the external symbol table is fine enough. */
3271
3272 if (eptr == (EXTR *) 0
3273 || eptr->asym.st == (int) st_Nil
3274 || cur_proc_ptr != (PDR *) 0)
3275 {
3276 symint_t isym = add_local_symbol (name_start, name_end_p1,
3277 symbol_type, storage_class,
3278 value,
3279 indx);
3280
3281 /* Deal with struct, union, and enum tags. */
3282 if (symbol_type == st_Block)
3283 {
3284 /* Create or update the tag information. */
3285 tag_t *tag_ptr = get_tag (name_start,
3286 name_end_p1,
3287 isym,
3288 t.basic_type);
3289
3290 /* If there are any forward references, fill in the appropriate
3291 file and symbol indexes. */
3292
3293 symint_t file_index = cur_file_ptr->file_index;
3294 forward_t *f_next = tag_ptr->forward_ref;
3295 forward_t *f_cur;
3296
3297 while (f_next != (forward_t *) 0)
3298 {
3299 f_cur = f_next;
3300 f_next = f_next->next;
3301
3302 f_cur->ifd_ptr->isym = file_index;
3303 f_cur->index_ptr->rndx.index = isym;
3304
3305 free_forward (f_cur);
3306 }
3307
3308 tag_ptr->forward_ref = (forward_t *) 0;
3309 }
3310 }
3311
3312 /* Normal return */
3313 return;
3314
3315 /* Error return, issue message. */
3316 bomb_out:
3317 if (error_line)
3318 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3319 else
3320 error ("compiler error, badly formed #.def");
3321
3322 return;
3323 }
3324
3325 \f
3326 /* Parse .end directives. */
3327
3328 STATIC void
3329 parse_end (const char *start)
3330 {
3331 const char *start_func, *end_func_p1;
3332 int ch;
3333 symint_t value;
3334 FDR *orig_fdr;
3335
3336 if (cur_file_ptr == (efdr_t *) 0)
3337 {
3338 error (".end directive without a preceding .file directive");
3339 return;
3340 }
3341
3342 if (cur_proc_ptr == (PDR *) 0)
3343 {
3344 error (".end directive without a preceding .ent directive");
3345 return;
3346 }
3347
3348 /* Get the function name, skipping whitespace. */
3349 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3350 ;
3351
3352 ch = *start_func;
3353 if (!IS_ASM_IDENT (ch))
3354 {
3355 error (".end directive has no name");
3356 return;
3357 }
3358
3359 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3360 ;
3361
3362
3363 /* Get the value field for creating the end from the original object
3364 file (which we find by locating the procedure start, and using the
3365 pointer to the end+1 block and backing up. The index points to a
3366 two word aux. symbol, whose first word is the index of the end
3367 symbol, and the second word is the type of the function return
3368 value. */
3369
3370 orig_fdr = cur_file_ptr->orig_fdr;
3371 value = 0;
3372 if (orig_fdr != (FDR *) 0 && cur_oproc_end != (SYMR *) 0)
3373 value = cur_oproc_end->value;
3374
3375 else
3376 error ("cannot find .end block for %.*s",
3377 (int) (end_func_p1 - start_func), start_func);
3378
3379 (void) add_local_symbol (start_func, end_func_p1,
3380 st_End, sc_Text,
3381 value,
3382 (symint_t) 0);
3383
3384 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3385 }
3386
3387 \f
3388 /* Parse .ent directives. */
3389
3390 STATIC void
3391 parse_ent (const char *start)
3392 {
3393 const char *start_func, *end_func_p1;
3394 int ch;
3395
3396 if (cur_file_ptr == (efdr_t *) 0)
3397 {
3398 error (".ent directive without a preceding .file directive");
3399 return;
3400 }
3401
3402 if (cur_proc_ptr != (PDR *) 0)
3403 {
3404 error ("second .ent directive found before .end directive");
3405 return;
3406 }
3407
3408 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3409 ;
3410
3411 ch = *start_func;
3412 if (!IS_ASM_IDENT (ch))
3413 {
3414 error (".ent directive has no name");
3415 return;
3416 }
3417
3418 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3419 ;
3420
3421 (void) add_procedure (start_func, end_func_p1);
3422 }
3423
3424 \f
3425 /* Parse .file directives. */
3426
3427 STATIC void
3428 parse_file (const char *start)
3429 {
3430 char *p;
3431 char *start_name, *end_name_p1;
3432
3433 (void) strtol (start, &p, 0);
3434 if (start == p
3435 || (start_name = strchr (p, '"')) == (char *) 0
3436 || (end_name_p1 = strrchr (++start_name, '"')) == (char *) 0)
3437 {
3438 error ("invalid .file directive");
3439 return;
3440 }
3441
3442 if (cur_proc_ptr != (PDR *) 0)
3443 {
3444 error ("no way to handle .file within .ent/.end section");
3445 return;
3446 }
3447
3448 add_file (start_name, end_name_p1);
3449 }
3450
3451 \f
3452 /* Make sure the @stabs symbol is emitted. */
3453
3454 static void
3455 mark_stabs (const char *start ATTRIBUTE_UNUSED)
3456 {
3457 if (!stabs_seen)
3458 {
3459 /* Add a dummy @stabs symbol. */
3460 stabs_seen = 1;
3461 (void) add_local_symbol (stabs_symbol,
3462 stabs_symbol + sizeof (stabs_symbol),
3463 stNil, scInfo, -1, MIPS_MARK_STAB (0));
3464
3465 }
3466 }
3467
3468 \f
3469 /* Parse .stabs directives.
3470
3471 .stabs directives have five fields:
3472 "string" a string, encoding the type information.
3473 code a numeric code, defined in <stab.h>
3474 0 a zero
3475 0 a zero or line number
3476 value a numeric value or an address.
3477
3478 If the value is relocatable, we transform this into:
3479 iss points as an index into string space
3480 value value from lookup of the name
3481 st st from lookup of the name
3482 sc sc from lookup of the name
3483 index code|CODE_MASK
3484
3485 If the value is not relocatable, we transform this into:
3486 iss points as an index into string space
3487 value value
3488 st st_Nil
3489 sc sc_Nil
3490 index code|CODE_MASK
3491
3492 .stabn directives have four fields (string is null):
3493 code a numeric code, defined in <stab.h>
3494 0 a zero
3495 0 a zero or a line number
3496 value a numeric value or an address. */
3497
3498 STATIC void
3499 parse_stabs_common (const char *string_start, /* start of string or NULL */
3500 const char *string_end, /* end+1 of string or NULL */
3501 const char *rest) /* rest of the directive. */
3502 {
3503 efdr_t *save_file_ptr = cur_file_ptr;
3504 symint_t code;
3505 symint_t value;
3506 char *p;
3507 st_t st;
3508 sc_t sc;
3509 int ch;
3510
3511 if (stabs_seen == 0)
3512 mark_stabs ("");
3513
3514 /* Read code from stabs. */
3515 if (!ISDIGIT (*rest))
3516 {
3517 error ("invalid .stabs/.stabn directive, code is non-numeric");
3518 return;
3519 }
3520
3521 code = strtol (rest, &p, 0);
3522
3523 /* Line number stabs are handled differently, since they have two values,
3524 the line number and the address of the label. We use the index field
3525 (aka code) to hold the line number, and the value field to hold the
3526 address. The symbol type is st_Label, which should be different from
3527 the other stabs, so that gdb can recognize it. */
3528
3529 if (code == (int) N_SLINE)
3530 {
3531 SYMR *sym_ptr, dummy_symr;
3532 shash_t *shash_ptr;
3533
3534 /* Skip ,0, */
3535 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
3536 {
3537 error ("invalid line number .stabs/.stabn directive");
3538 return;
3539 }
3540
3541 code = strtol (p+3, &p, 0);
3542 ch = *++p;
3543 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
3544 {
3545 error ("invalid line number .stabs/.stabn directive");
3546 return;
3547 }
3548
3549 dummy_symr.index = code;
3550 if (dummy_symr.index != code)
3551 {
3552 error ("line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3553 code);
3554
3555 return;
3556 }
3557
3558 shash_ptr = hash_string (p,
3559 strlen (p) - 1,
3560 &orig_str_hash[0],
3561 (symint_t *) 0);
3562
3563 if (shash_ptr == (shash_t *) 0
3564 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3565 {
3566 error ("invalid .stabs/.stabn directive, value not found");
3567 return;
3568 }
3569
3570 if ((st_t) sym_ptr->st != st_Label)
3571 {
3572 error ("invalid line number .stabs/.stabn directive");
3573 return;
3574 }
3575
3576 st = st_Label;
3577 sc = (sc_t) sym_ptr->sc;
3578 value = sym_ptr->value;
3579 }
3580 else
3581 {
3582 /* Skip ,<num>,<num>, */
3583 if (*p++ != ',')
3584 goto failure;
3585 for (; ISDIGIT (*p); p++)
3586 ;
3587 if (*p++ != ',')
3588 goto failure;
3589 for (; ISDIGIT (*p); p++)
3590 ;
3591 if (*p++ != ',')
3592 goto failure;
3593 ch = *p;
3594 if (!IS_ASM_IDENT (ch) && ch != '-')
3595 {
3596 failure:
3597 error ("invalid .stabs/.stabn directive, bad character");
3598 return;
3599 }
3600
3601 if (ISDIGIT (ch) || ch == '-')
3602 {
3603 st = st_Nil;
3604 sc = sc_Nil;
3605 value = strtol (p, &p, 0);
3606 if (*p != '\n')
3607 {
3608 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3609 return;
3610 }
3611 }
3612 else if (!IS_ASM_IDENT (ch))
3613 {
3614 error ("invalid .stabs/.stabn directive, bad character");
3615 return;
3616 }
3617 else
3618 {
3619 SYMR *sym_ptr;
3620 shash_t *shash_ptr;
3621 const char *start, *end_p1;
3622
3623 start = p;
3624 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3625 {
3626 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3627 end_p1 = start + strlen (start) - 1;
3628 }
3629
3630 shash_ptr = hash_string (start,
3631 end_p1 - start,
3632 &orig_str_hash[0],
3633 (symint_t *) 0);
3634
3635 if (shash_ptr == (shash_t *) 0
3636 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3637 {
3638 shash_ptr = hash_string (start,
3639 end_p1 - start,
3640 &ext_str_hash[0],
3641 (symint_t *) 0);
3642
3643 if (shash_ptr == (shash_t *) 0
3644 || shash_ptr->esym_ptr == (EXTR *) 0)
3645 {
3646 error ("invalid .stabs/.stabn directive, value not found");
3647 return;
3648 }
3649 else
3650 sym_ptr = &(shash_ptr->esym_ptr->asym);
3651 }
3652
3653 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3654 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3655 {
3656 sc = scNil;
3657 st = stNil;
3658 }
3659 else
3660 {
3661 sc = (sc_t) sym_ptr->sc;
3662 st = (st_t) sym_ptr->st;
3663 }
3664 value = sym_ptr->value;
3665
3666 ch = *end_p1++;
3667 if (ch != '\n')
3668 {
3669 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
3670 || ((ch != '+') && (ch != '-')))
3671 {
3672 error ("invalid .stabs/.stabn directive, badly formed value");
3673 return;
3674 }
3675 if (ch == '+')
3676 value += strtol (end_p1, &p, 0);
3677 else if (ch == '-')
3678 value -= strtol (end_p1, &p, 0);
3679
3680 if (*p != '\n')
3681 {
3682 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3683 return;
3684 }
3685 }
3686 }
3687 code = MIPS_MARK_STAB (code);
3688 }
3689
3690 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3691 /* Restore normal file type. */
3692 cur_file_ptr = save_file_ptr;
3693 }
3694
3695
3696 STATIC void
3697 parse_stabs (const char *start)
3698 {
3699 const char *end = strchr (start+1, '"');
3700
3701 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3702 {
3703 error ("invalid .stabs directive, no string");
3704 return;
3705 }
3706
3707 parse_stabs_common (start+1, end, end+2);
3708 }
3709
3710
3711 STATIC void
3712 parse_stabn (const char *start)
3713 {
3714 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3715 }
3716
3717 \f
3718 /* Parse the input file, and write the lines to the output file
3719 if needed. */
3720
3721 STATIC void
3722 parse_input (void)
3723 {
3724 char *p;
3725 Size_t i;
3726 thead_t *ptag_head;
3727 tag_t *ptag;
3728 tag_t *ptag_next;
3729
3730 if (debug)
3731 fprintf (stderr, "\tinput\n");
3732
3733 /* Add a dummy scope block around the entire compilation unit for
3734 structures defined outside of blocks. */
3735 ptag_head = allocate_thead ();
3736 ptag_head->first_tag = 0;
3737 ptag_head->prev = cur_tag_head;
3738 cur_tag_head = ptag_head;
3739
3740 while ((p = read_line ()) != (char *) 0)
3741 {
3742 /* Skip leading blanks. */
3743 while (ISSPACE ((unsigned char)*p))
3744 p++;
3745
3746 /* See if it's a directive we handle. If so, dispatch handler. */
3747 for (i = 0; i < ARRAY_SIZE (pseudo_ops); i++)
3748 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3749 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len])))
3750 {
3751 p += pseudo_ops[i].len; /* skip to first argument */
3752 while (ISSPACE ((unsigned char)*p))
3753 p++;
3754
3755 (*pseudo_ops[i].func)( p );
3756 break;
3757 }
3758 }
3759
3760 /* Process any tags at global level. */
3761 ptag_head = cur_tag_head;
3762 cur_tag_head = ptag_head->prev;
3763
3764 for (ptag = ptag_head->first_tag;
3765 ptag != (tag_t *) 0;
3766 ptag = ptag_next)
3767 {
3768 if (ptag->forward_ref != (forward_t *) 0)
3769 add_unknown_tag (ptag);
3770
3771 ptag_next = ptag->same_block;
3772 ptag->hash_ptr->tag_ptr = ptag->same_name;
3773 free_tag (ptag);
3774 }
3775
3776 free_thead (ptag_head);
3777
3778 }
3779
3780 \f
3781 /* Update the global headers with the final offsets in preparation
3782 to write out the .T file. */
3783
3784 STATIC void
3785 update_headers (void)
3786 {
3787 symint_t i;
3788 efdr_t *file_ptr;
3789
3790 /* Set up the symbolic header. */
3791 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3792 symbolic_header.magic = orig_sym_hdr.magic;
3793 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3794
3795 /* Set up global counts. */
3796 symbolic_header.issExtMax = ext_strings.num_allocated;
3797 symbolic_header.idnMax = dense_num.num_allocated;
3798 symbolic_header.ifdMax = file_desc.num_allocated;
3799 symbolic_header.iextMax = ext_symbols.num_allocated;
3800 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3801 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3802 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3803 symbolic_header.crfd = orig_sym_hdr.crfd;
3804
3805
3806 /* Loop through each file, figuring out how many local syms,
3807 line numbers, etc. there are. Also, put out end symbol
3808 for the filename. */
3809
3810 for (file_ptr = first_file;
3811 file_ptr != (efdr_t *) 0;
3812 file_ptr = file_ptr->next_file)
3813 {
3814 SYMR *sym_start;
3815 SYMR *sym;
3816 SYMR *sym_end_p1;
3817 FDR *fd_ptr = file_ptr->orig_fdr;
3818
3819 cur_file_ptr = file_ptr;
3820
3821 /* Copy st_Static symbols from the original local symbol table if
3822 they did not get added to the new local symbol table.
3823 This happens with stabs-in-ecoff or if the source file is
3824 compiled without debugging. */
3825 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
3826 sym_end_p1 = sym_start + fd_ptr->csym;
3827 for (sym = sym_start; sym < sym_end_p1; sym++)
3828 {
3829 if ((st_t) sym->st == st_Static)
3830 {
3831 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
3832 Size_t len = strlen (str);
3833 shash_t *hash_ptr;
3834
3835 /* Ignore internal labels. */
3836 if (str[0] == '$' && str[1] == 'L')
3837 continue;
3838 hash_ptr = hash_string (str,
3839 (Ptrdiff_t) len,
3840 &file_ptr->shash_head[0],
3841 (symint_t *) 0);
3842 if (hash_ptr == (shash_t *) 0)
3843 {
3844 (void) add_local_symbol (str, str + len,
3845 (st_t) sym->st, (sc_t) sym->sc,
3846 (symint_t) sym->value,
3847 (symint_t) indexNil);
3848 }
3849 }
3850 }
3851 (void) add_local_symbol ((const char *) 0, (const char *) 0,
3852 st_End, sc_Text,
3853 (symint_t) 0,
3854 (symint_t) 0);
3855
3856 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3857 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3858 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3859
3860 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3861 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3862 symbolic_header.isymMax += file_ptr->fdr.csym;
3863
3864 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3865 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3866 symbolic_header.iauxMax += file_ptr->fdr.caux;
3867
3868 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
3869 file_ptr->fdr.issBase = symbolic_header.issMax;
3870 symbolic_header.issMax += file_ptr->fdr.cbSs;
3871 }
3872
3873 #ifndef ALIGN_SYMTABLE_OFFSET
3874 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
3875 #endif
3876
3877 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3878 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
3879 if (i > 0)
3880 {
3881 symbolic_header.cbLineOffset = file_offset;
3882 file_offset += i;
3883 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3884 }
3885
3886 i = symbolic_header.ioptMax; /* optimization symbols */
3887 if (((long) i) > 0)
3888 {
3889 symbolic_header.cbOptOffset = file_offset;
3890 file_offset += i * sizeof (OPTR);
3891 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3892 }
3893
3894 i = symbolic_header.idnMax; /* dense numbers */
3895 if (i > 0)
3896 {
3897 symbolic_header.cbDnOffset = file_offset;
3898 file_offset += i * sizeof (DNR);
3899 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3900 }
3901
3902 i = symbolic_header.ipdMax; /* procedure tables */
3903 if (i > 0)
3904 {
3905 symbolic_header.cbPdOffset = file_offset;
3906 file_offset += i * sizeof (PDR);
3907 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3908 }
3909
3910 i = symbolic_header.isymMax; /* local symbols */
3911 if (i > 0)
3912 {
3913 symbolic_header.cbSymOffset = file_offset;
3914 file_offset += i * sizeof (SYMR);
3915 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3916 }
3917
3918 i = symbolic_header.iauxMax; /* aux syms. */
3919 if (i > 0)
3920 {
3921 symbolic_header.cbAuxOffset = file_offset;
3922 file_offset += i * sizeof (TIR);
3923 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3924 }
3925
3926 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
3927 if (i > 0)
3928 {
3929 symbolic_header.cbSsOffset = file_offset;
3930 file_offset += i;
3931 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3932 }
3933
3934 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
3935 if (i > 0)
3936 {
3937 symbolic_header.cbSsExtOffset = file_offset;
3938 file_offset += i;
3939 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3940 }
3941
3942 i = symbolic_header.ifdMax; /* file tables */
3943 if (i > 0)
3944 {
3945 symbolic_header.cbFdOffset = file_offset;
3946 file_offset += i * sizeof (FDR);
3947 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3948 }
3949
3950 i = symbolic_header.crfd; /* relative file descriptors */
3951 if (i > 0)
3952 {
3953 symbolic_header.cbRfdOffset = file_offset;
3954 file_offset += i * sizeof (symint_t);
3955 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3956 }
3957
3958 i = symbolic_header.iextMax; /* external symbols */
3959 if (i > 0)
3960 {
3961 symbolic_header.cbExtOffset = file_offset;
3962 file_offset += i * sizeof (EXTR);
3963 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3964 }
3965 }
3966
3967 \f
3968 /* Write out a varray at a given location. */
3969
3970 STATIC void
3971 write_varray (varray_t *vp, /* virtual array */
3972 off_t offset, /* offset to write varray to */
3973 const char *str) /* string to print out when tracing */
3974 {
3975 int num_write, sys_write;
3976 vlinks_t *ptr;
3977
3978 if (vp->num_allocated == 0)
3979 return;
3980
3981 if (debug)
3982 fprintf (stderr, "\twarray\tvp = %p, offset = %7lu, size = %7lu, %s\n",
3983 (void *) vp, (unsigned long) offset,
3984 vp->num_allocated * vp->object_size, str);
3985
3986 if (file_offset != (unsigned long) offset
3987 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
3988 pfatal_with_name (object_name);
3989
3990 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
3991 {
3992 num_write = (ptr->next == (vlinks_t *) 0)
3993 ? vp->objects_last_page * vp->object_size
3994 : vp->objects_per_page * vp->object_size;
3995
3996 sys_write = fwrite (ptr->datum, 1, num_write, object_stream);
3997 if (sys_write <= 0)
3998 pfatal_with_name (object_name);
3999
4000 else if (sys_write != num_write)
4001 fatal ("wrote %d bytes to %s, system returned %d",
4002 num_write,
4003 object_name,
4004 sys_write);
4005
4006 file_offset += num_write;
4007 }
4008 }
4009
4010 \f
4011 /* Write out the symbol table in the object file. */
4012
4013 STATIC void
4014 write_object (void)
4015 {
4016 int sys_write;
4017 efdr_t *file_ptr;
4018 off_t offset;
4019
4020 if (debug)
4021 fprintf (stderr, "\n\twrite\tvp = %p, offset = %7u, size = %7lu, %s\n",
4022 (void *) &symbolic_header, 0,
4023 (unsigned long) sizeof (symbolic_header), "symbolic header");
4024
4025 sys_write = fwrite (&symbolic_header,
4026 1,
4027 sizeof (symbolic_header),
4028 object_stream);
4029
4030 if (sys_write < 0)
4031 pfatal_with_name (object_name);
4032
4033 else if (sys_write != sizeof (symbolic_header))
4034 fatal ("wrote %d bytes to %s, system returned %d",
4035 (int) sizeof (symbolic_header),
4036 object_name,
4037 sys_write);
4038
4039
4040 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4041
4042 if (symbolic_header.cbLine > 0) /* line numbers */
4043 {
4044 long sys_write;
4045
4046 if (file_offset != (unsigned long) symbolic_header.cbLineOffset
4047 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4048 pfatal_with_name (object_name);
4049
4050 if (debug)
4051 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n",
4052 (void *) &orig_linenum, (long) symbolic_header.cbLineOffset,
4053 (long) symbolic_header.cbLine, "Line numbers");
4054
4055 sys_write = fwrite (orig_linenum,
4056 1,
4057 symbolic_header.cbLine,
4058 object_stream);
4059
4060 if (sys_write <= 0)
4061 pfatal_with_name (object_name);
4062
4063 else if (sys_write != symbolic_header.cbLine)
4064 fatal ("wrote %ld bytes to %s, system returned %ld",
4065 (long) symbolic_header.cbLine,
4066 object_name,
4067 sys_write);
4068
4069 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4070 }
4071
4072 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4073 {
4074 long sys_write;
4075 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4076
4077 if (file_offset != (unsigned long) symbolic_header.cbOptOffset
4078 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4079 pfatal_with_name (object_name);
4080
4081 if (debug)
4082 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n",
4083 (void *) &orig_opt_syms, (long) symbolic_header.cbOptOffset,
4084 num_write, "Optimizer symbols");
4085
4086 sys_write = fwrite (orig_opt_syms,
4087 1,
4088 num_write,
4089 object_stream);
4090
4091 if (sys_write <= 0)
4092 pfatal_with_name (object_name);
4093
4094 else if (sys_write != num_write)
4095 fatal ("wrote %ld bytes to %s, system returned %ld",
4096 num_write,
4097 object_name,
4098 sys_write);
4099
4100 file_offset = symbolic_header.cbOptOffset + num_write;
4101 }
4102
4103 if (symbolic_header.idnMax > 0) /* dense numbers */
4104 write_varray (&dense_num, (off_t) symbolic_header.cbDnOffset, "Dense numbers");
4105
4106 if (symbolic_header.ipdMax > 0) /* procedure tables */
4107 {
4108 offset = symbolic_header.cbPdOffset;
4109 for (file_ptr = first_file;
4110 file_ptr != (efdr_t *) 0;
4111 file_ptr = file_ptr->next_file)
4112 {
4113 write_varray (&file_ptr->procs, offset, "Procedure tables");
4114 offset = file_offset;
4115 }
4116 }
4117
4118 if (symbolic_header.isymMax > 0) /* local symbols */
4119 {
4120 offset = symbolic_header.cbSymOffset;
4121 for (file_ptr = first_file;
4122 file_ptr != (efdr_t *) 0;
4123 file_ptr = file_ptr->next_file)
4124 {
4125 write_varray (&file_ptr->symbols, offset, "Local symbols");
4126 offset = file_offset;
4127 }
4128 }
4129
4130 if (symbolic_header.iauxMax > 0) /* aux symbols */
4131 {
4132 offset = symbolic_header.cbAuxOffset;
4133 for (file_ptr = first_file;
4134 file_ptr != (efdr_t *) 0;
4135 file_ptr = file_ptr->next_file)
4136 {
4137 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4138 offset = file_offset;
4139 }
4140 }
4141
4142 if (symbolic_header.issMax > 0) /* local strings */
4143 {
4144 offset = symbolic_header.cbSsOffset;
4145 for (file_ptr = first_file;
4146 file_ptr != (efdr_t *) 0;
4147 file_ptr = file_ptr->next_file)
4148 {
4149 write_varray (&file_ptr->strings, offset, "Local strings");
4150 offset = file_offset;
4151 }
4152 }
4153
4154 if (symbolic_header.issExtMax > 0) /* external strings */
4155 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4156
4157 if (symbolic_header.ifdMax > 0) /* file tables */
4158 {
4159 offset = symbolic_header.cbFdOffset;
4160 if (file_offset != (unsigned long) offset
4161 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
4162 pfatal_with_name (object_name);
4163
4164 file_offset = offset;
4165 for (file_ptr = first_file;
4166 file_ptr != (efdr_t *) 0;
4167 file_ptr = file_ptr->next_file)
4168 {
4169 if (debug)
4170 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n",
4171 (void *) &file_ptr->fdr, file_offset,
4172 (unsigned long) sizeof (FDR), "File header");
4173
4174 sys_write = fwrite (&file_ptr->fdr,
4175 1,
4176 sizeof (FDR),
4177 object_stream);
4178
4179 if (sys_write < 0)
4180 pfatal_with_name (object_name);
4181
4182 else if (sys_write != sizeof (FDR))
4183 fatal ("wrote %d bytes to %s, system returned %d",
4184 (int) sizeof (FDR),
4185 object_name,
4186 sys_write);
4187
4188 file_offset = offset += sizeof (FDR);
4189 }
4190 }
4191
4192 if (symbolic_header.crfd > 0) /* relative file descriptors */
4193 {
4194 long sys_write;
4195 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4196
4197 if (file_offset != (unsigned long) symbolic_header.cbRfdOffset
4198 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4199 pfatal_with_name (object_name);
4200
4201 if (debug)
4202 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n",
4203 (void *) &orig_rfds, (long) symbolic_header.cbRfdOffset,
4204 num_write, "Relative file descriptors");
4205
4206 sys_write = fwrite (orig_rfds,
4207 1,
4208 num_write,
4209 object_stream);
4210
4211 if (sys_write <= 0)
4212 pfatal_with_name (object_name);
4213
4214 else if (sys_write != (long) num_write)
4215 fatal ("wrote %lu bytes to %s, system returned %ld",
4216 num_write,
4217 object_name,
4218 sys_write);
4219
4220 file_offset = symbolic_header.cbRfdOffset + num_write;
4221 }
4222
4223 if (symbolic_header.issExtMax > 0) /* external symbols */
4224 write_varray (&ext_symbols, (off_t) symbolic_header.cbExtOffset, "External symbols");
4225
4226 if (fclose (object_stream) != 0)
4227 pfatal_with_name (object_name);
4228 }
4229
4230 \f
4231 /* Read some bytes at a specified location, and return a pointer. */
4232
4233 STATIC page_t *
4234 read_seek (Size_t size, /* # bytes to read */
4235 off_t offset, /* offset to read at */
4236 const char *str) /* name for tracing */
4237 {
4238 page_t *ptr;
4239 long sys_read = 0;
4240
4241 if (size == 0) /* nothing to read */
4242 return (page_t *) 0;
4243
4244 if (debug)
4245 fprintf (stderr,
4246 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n",
4247 (unsigned long) size, (unsigned long) offset, file_offset, str);
4248
4249 #ifndef MALLOC_CHECK
4250 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4251 #else
4252 ptr = xcalloc (1, size);
4253 #endif
4254
4255 /* If we need to seek, and the distance is nearby, just do some reads,
4256 to speed things up. */
4257 if (file_offset != (unsigned long) offset)
4258 {
4259 symint_t difference = offset - file_offset;
4260
4261 if (difference < 8)
4262 {
4263 char small_buffer[8];
4264
4265 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4266 if (sys_read <= 0)
4267 pfatal_with_name (obj_in_name);
4268
4269 if ((symint_t) sys_read != difference)
4270 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4271 (unsigned long) size,
4272 obj_in_name,
4273 sys_read);
4274 }
4275 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4276 pfatal_with_name (obj_in_name);
4277 }
4278
4279 sys_read = fread (ptr, 1, size, obj_in_stream);
4280 if (sys_read <= 0)
4281 pfatal_with_name (obj_in_name);
4282
4283 if (sys_read != (long) size)
4284 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4285 (unsigned long) size,
4286 obj_in_name,
4287 sys_read);
4288
4289 file_offset = offset + size;
4290
4291 if (file_offset > max_file_offset)
4292 max_file_offset = file_offset;
4293
4294 return ptr;
4295 }
4296
4297 \f
4298 /* Read the existing object file (and copy to the output object file
4299 if it is different from the input object file), and remove the old
4300 symbol table. */
4301
4302 STATIC void
4303 copy_object (void)
4304 {
4305 char buffer[ PAGE_SIZE ];
4306 int sys_read;
4307 int remaining;
4308 int num_write;
4309 int sys_write;
4310 int fd, es;
4311 int delete_ifd = 0;
4312 int *remap_file_number;
4313 struct stat stat_buf;
4314
4315 if (debug)
4316 fprintf (stderr, "\tcopy\n");
4317
4318 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4319 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4320 pfatal_with_name (obj_in_name);
4321
4322 sys_read = fread (&orig_file_header,
4323 1,
4324 sizeof (struct filehdr),
4325 obj_in_stream);
4326
4327 if (sys_read < 0)
4328 pfatal_with_name (obj_in_name);
4329
4330 else if (sys_read == 0 && feof (obj_in_stream))
4331 return; /* create a .T file sans file header */
4332
4333 else if (sys_read < (int) sizeof (struct filehdr))
4334 fatal ("wanted to read %d bytes from %s, system returned %d",
4335 (int) sizeof (struct filehdr),
4336 obj_in_name,
4337 sys_read);
4338
4339
4340 if (orig_file_header.f_nsyms != sizeof (HDRR))
4341 fatal ("%s symbolic header wrong size (%ld bytes, should be %ld)",
4342 input_name, (long) orig_file_header.f_nsyms, (long) sizeof (HDRR));
4343
4344
4345 /* Read in the current symbolic header. */
4346 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4347 pfatal_with_name (input_name);
4348
4349 sys_read = fread (&orig_sym_hdr,
4350 1,
4351 sizeof (orig_sym_hdr),
4352 obj_in_stream);
4353
4354 if (sys_read < 0)
4355 pfatal_with_name (object_name);
4356
4357 else if (sys_read < (int) sizeof (struct filehdr))
4358 fatal ("wanted to read %d bytes from %s, system returned %d",
4359 (int) sizeof (struct filehdr),
4360 obj_in_name,
4361 sys_read);
4362
4363
4364 /* Read in each of the sections if they exist in the object file.
4365 We read things in the order the mips assembler creates the
4366 sections, so in theory no extra seeks are done.
4367
4368 For simplicity sake, round each read up to a page boundary,
4369 we may want to revisit this later.... */
4370
4371 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4372
4373 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4374 orig_linenum = (char *) read_seek (orig_sym_hdr.cbLine,
4375 orig_sym_hdr.cbLineOffset,
4376 "Line numbers");
4377
4378 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4379 orig_procs = (PDR *) read_seek (orig_sym_hdr.ipdMax * sizeof (PDR),
4380 orig_sym_hdr.cbPdOffset,
4381 "Procedure tables");
4382
4383 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4384 orig_local_syms = (SYMR *) read_seek (orig_sym_hdr.isymMax * sizeof (SYMR),
4385 orig_sym_hdr.cbSymOffset,
4386 "Local symbols");
4387
4388 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4389 orig_aux_syms = (AUXU *) read_seek (orig_sym_hdr.iauxMax * sizeof (AUXU),
4390 orig_sym_hdr.cbAuxOffset,
4391 "Aux. symbols");
4392
4393 if (orig_sym_hdr.issMax > 0) /* local strings */
4394 orig_local_strs = (char *) read_seek (orig_sym_hdr.issMax,
4395 orig_sym_hdr.cbSsOffset,
4396 "Local strings");
4397
4398 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4399 orig_ext_strs = (char *) read_seek (orig_sym_hdr.issExtMax,
4400 orig_sym_hdr.cbSsExtOffset,
4401 "External strings");
4402
4403 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4404 orig_files = (FDR *) read_seek (orig_sym_hdr.ifdMax * sizeof (FDR),
4405 orig_sym_hdr.cbFdOffset,
4406 "File tables");
4407
4408 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4409 orig_rfds = (symint_t *) read_seek (orig_sym_hdr.crfd * sizeof (symint_t),
4410 orig_sym_hdr.cbRfdOffset,
4411 "Relative file descriptors");
4412
4413 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4414 orig_ext_syms = (EXTR *) read_seek (orig_sym_hdr.iextMax * sizeof (EXTR),
4415 orig_sym_hdr.cbExtOffset,
4416 "External symbols");
4417
4418 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4419 {
4420 orig_dense = (DNR *) read_seek (orig_sym_hdr.idnMax * sizeof (DNR),
4421 orig_sym_hdr.cbDnOffset,
4422 "Dense numbers");
4423
4424 add_bytes (&dense_num, (char *) orig_dense, orig_sym_hdr.idnMax);
4425 }
4426
4427 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4428 orig_opt_syms = (OPTR *) read_seek (orig_sym_hdr.ioptMax * sizeof (OPTR),
4429 orig_sym_hdr.cbOptOffset,
4430 "Optimizer symbols");
4431
4432
4433
4434 /* The symbol table should be last. */
4435 if (max_file_offset != (unsigned long) stat_buf.st_size)
4436 fatal ("symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4437 max_file_offset,
4438 (long) stat_buf.st_size);
4439
4440
4441 /* If the first original file descriptor is a dummy which the assembler
4442 put out, but there are no symbols in it, skip it now. */
4443 if (orig_sym_hdr.ifdMax > 1
4444 && orig_files->csym == 2
4445 && orig_files->caux == 0)
4446 {
4447 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4448 char *suffix = strrchr (filename, '.');
4449
4450 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4451 delete_ifd = 1;
4452 }
4453
4454
4455 /* Create array to map original file numbers to the new file numbers
4456 (in case there are duplicate filenames, we collapse them into one
4457 file section, the MIPS assembler may or may not collapse them). */
4458
4459 remap_file_number = alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4460
4461 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4462 {
4463 FDR *fd_ptr = ORIG_FILES (fd);
4464 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4465
4466 /* file support itself. */
4467 add_file (filename, filename + strlen (filename));
4468 remap_file_number[fd] = cur_file_ptr->file_index;
4469 }
4470
4471 if (delete_ifd > 0) /* just in case */
4472 remap_file_number[0] = remap_file_number[1];
4473
4474
4475 /* Loop, adding each of the external symbols. These must be in
4476 order or otherwise we would have to change the relocation
4477 entries. We don't just call add_bytes, because we need to have
4478 the names put into the external hash table. We set the type to
4479 'void' for now, and parse_def will fill in the correct type if it
4480 is in the symbol table. We must add the external symbols before
4481 the locals, since the locals do lookups against the externals. */
4482
4483 if (debug)
4484 fprintf (stderr, "\tehash\n");
4485
4486 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4487 {
4488 EXTR *eptr = orig_ext_syms + es;
4489 int ifd = eptr->ifd;
4490
4491 (void) add_ext_symbol (eptr, ((long) ifd < orig_sym_hdr.ifdMax)
4492 ? remap_file_number[ ifd ] : ifd );
4493 }
4494
4495
4496 /* For each of the files in the object file, copy the symbols, and such
4497 into the varrays for the new object file. */
4498
4499 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4500 {
4501 FDR *fd_ptr = ORIG_FILES (fd);
4502 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4503 SYMR *sym_start;
4504 SYMR *sym;
4505 SYMR *sym_end_p1;
4506 PDR *proc_start;
4507 PDR *proc;
4508 PDR *proc_end_p1;
4509
4510 /* file support itself. */
4511 add_file (filename, filename + strlen (filename));
4512 cur_file_ptr->orig_fdr = fd_ptr;
4513
4514 /* Copy stuff that's just passed through (such as line #'s) */
4515 cur_file_ptr->fdr.adr = fd_ptr->adr;
4516 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4517 cur_file_ptr->fdr.cline = fd_ptr->cline;
4518 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4519 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4520 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4521 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4522 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4523 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4524 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4525
4526 if (debug)
4527 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4528
4529 /* For each of the static and global symbols defined, add them
4530 to the hash table of original symbols, so we can look up
4531 their values. */
4532
4533 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4534 sym_end_p1 = sym_start + fd_ptr->csym;
4535 for (sym = sym_start; sym < sym_end_p1; sym++)
4536 {
4537 switch ((st_t) sym->st)
4538 {
4539 default:
4540 break;
4541
4542 case st_Global:
4543 case st_Static:
4544 case st_Label:
4545 case st_Proc:
4546 case st_StaticProc:
4547 {
4548 auto symint_t hash_index;
4549 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4550 Size_t len = strlen (str);
4551 shash_t *shash_ptr = hash_string (str,
4552 (Ptrdiff_t) len,
4553 &orig_str_hash[0],
4554 &hash_index);
4555
4556 if (shash_ptr != (shash_t *) 0)
4557 error ("internal error, %s is already in original symbol table", str);
4558
4559 else
4560 {
4561 shash_ptr = allocate_shash ();
4562 shash_ptr->next = orig_str_hash[hash_index];
4563 orig_str_hash[hash_index] = shash_ptr;
4564
4565 shash_ptr->len = len;
4566 shash_ptr->indx = indexNil;
4567 shash_ptr->string = str;
4568 shash_ptr->sym_ptr = sym;
4569 }
4570 }
4571 break;
4572
4573 case st_End:
4574 if ((sc_t) sym->sc == sc_Text)
4575 {
4576 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4577
4578 if (*str != '\0')
4579 {
4580 Size_t len = strlen (str);
4581 shash_t *shash_ptr = hash_string (str,
4582 (Ptrdiff_t) len,
4583 &orig_str_hash[0],
4584 (symint_t *) 0);
4585
4586 if (shash_ptr != (shash_t *) 0)
4587 shash_ptr->end_ptr = sym;
4588 }
4589 }
4590 break;
4591
4592 }
4593 }
4594
4595 if (debug)
4596 {
4597 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4598 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4599 }
4600
4601 /* Go through each of the procedures in this file, and add the
4602 procedure pointer to the hash entry for the given name. */
4603
4604 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4605 proc_end_p1 = proc_start + fd_ptr->cpd;
4606 for (proc = proc_start; proc < proc_end_p1; proc++)
4607 {
4608 SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4609 char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4610 Size_t len = strlen (str);
4611 shash_t *shash_ptr = hash_string (str,
4612 (Ptrdiff_t) len,
4613 &orig_str_hash[0],
4614 (symint_t *) 0);
4615
4616 if (shash_ptr == (shash_t *) 0)
4617 error ("internal error, function %s is not in original symbol table", str);
4618
4619 else
4620 shash_ptr->proc_ptr = proc;
4621 }
4622
4623 if (debug)
4624 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4625
4626 }
4627 cur_file_ptr = first_file;
4628
4629
4630 /* Copy all of the object file up to the symbol table. Originally
4631 we were going to use ftruncate, but that doesn't seem to work
4632 on Ultrix 3.1.... */
4633
4634 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4635 pfatal_with_name (obj_in_name);
4636
4637 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4638 pfatal_with_name (object_name);
4639
4640 for (remaining = orig_file_header.f_symptr;
4641 remaining > 0;
4642 remaining -= num_write)
4643 {
4644 num_write
4645 = (remaining <= (int) sizeof (buffer))
4646 ? remaining : (int) sizeof (buffer);
4647 sys_read = fread (buffer, 1, num_write, obj_in_stream);
4648 if (sys_read <= 0)
4649 pfatal_with_name (obj_in_name);
4650
4651 else if (sys_read != num_write)
4652 fatal ("wanted to read %d bytes from %s, system returned %d",
4653 num_write,
4654 obj_in_name,
4655 sys_read);
4656
4657 sys_write = fwrite (buffer, 1, num_write, object_stream);
4658 if (sys_write <= 0)
4659 pfatal_with_name (object_name);
4660
4661 else if (sys_write != num_write)
4662 fatal ("wrote %d bytes to %s, system returned %d",
4663 num_write,
4664 object_name,
4665 sys_write);
4666 }
4667 }
4668
4669 \f
4670 /* Ye olde main program. */
4671
4672 extern int main (int, char **);
4673
4674 int
4675 main (int argc, char **argv)
4676 {
4677 int iflag = 0;
4678 char *p = strrchr (argv[0], '/');
4679 char *num_end;
4680 int option;
4681 int i;
4682
4683 progname = (p != 0) ? p+1 : argv[0];
4684
4685 (void) signal (SIGSEGV, catch_signal);
4686 (void) signal (SIGBUS, catch_signal);
4687 (void) signal (SIGABRT, catch_signal);
4688
4689 #if !defined(__SABER__) && !defined(lint)
4690 if (sizeof (efdr_t) > PAGE_USIZE)
4691 fatal ("efdr_t has a sizeof %d bytes, when it should be less than %d",
4692 (int) sizeof (efdr_t),
4693 (int) PAGE_USIZE);
4694
4695 if (sizeof (page_t) != PAGE_USIZE)
4696 fatal ("page_t has a sizeof %d bytes, when it should be %d",
4697 (int) sizeof (page_t),
4698 (int) PAGE_USIZE);
4699
4700 #endif
4701
4702 alloc_counts[ alloc_type_none ].alloc_name = "none";
4703 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4704 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4705 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4706 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4707 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4708 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4709 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4710 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4711
4712 int_type_info = type_info_init;
4713 int_type_info.basic_type = bt_Int;
4714
4715 void_type_info = type_info_init;
4716 void_type_info.basic_type = bt_Void;
4717
4718 while ((option = getopt_long (argc, argv, "d:i:I:o:v", options, NULL)) != -1)
4719 switch (option)
4720 {
4721 default:
4722 had_errors++;
4723 break;
4724
4725 case 'd':
4726 debug = strtol (optarg, &num_end, 0);
4727 if ((unsigned) debug > 4 || num_end == optarg)
4728 had_errors++;
4729
4730 break;
4731
4732 case 'I':
4733 if (rename_output || obj_in_name != (char *) 0)
4734 had_errors++;
4735 else
4736 rename_output = 1;
4737
4738 /* Fall through to 'i' case. */
4739
4740 case 'i':
4741 if (obj_in_name == (char *) 0)
4742 {
4743 obj_in_name = optarg;
4744 iflag++;
4745 }
4746 else
4747 had_errors++;
4748 break;
4749
4750 case 'o':
4751 if (object_name == (char *) 0)
4752 object_name = optarg;
4753 else
4754 had_errors++;
4755 break;
4756
4757 case 'v':
4758 verbose++;
4759 break;
4760
4761 case 'V':
4762 version++;
4763 break;
4764 }
4765
4766 if (version)
4767 {
4768 printf (_("mips-tfile (GCC) %s\n"), version_string);
4769 fputs ("Copyright (C) 2006 Free Software Foundation, Inc.\n", stdout);
4770 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
4771 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
4772 stdout);
4773 exit (0);
4774 }
4775
4776 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4777 obj_in_name = argv[--argc];
4778
4779 if (object_name == (char *) 0 && optind <= argc - 2)
4780 object_name = argv[--argc];
4781
4782 /* If there is an output name, but no input name use
4783 the same file for both, deleting the name between
4784 opening it for input and opening it for output. */
4785 if (obj_in_name == (char *) 0 && object_name != (char *) 0)
4786 {
4787 obj_in_name = object_name;
4788 delete_input = 1;
4789 }
4790
4791 if (optind != argc - 1)
4792 had_errors++;
4793
4794 if (verbose || had_errors)
4795 {
4796 fprintf (stderr, _("mips-tfile (GCC) %s"), version_string);
4797 #ifdef TARGET_VERSION
4798 TARGET_VERSION;
4799 #endif
4800 fputc ('\n', stderr);
4801 }
4802
4803 if (object_name == (char *) 0 || had_errors)
4804 {
4805 fprintf (stderr, _("Calling Sequence:\n"));
4806 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4807 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4808 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n"));
4809 fprintf (stderr, "\n");
4810 fprintf (stderr, _("Debug levels are:\n"));
4811 fprintf (stderr, _(" 1\tGeneral debug + trace functions/blocks.\n"));
4812 fprintf (stderr, _(" 2\tDebug level 1 + trace externals.\n"));
4813 fprintf (stderr, _(" 3\tDebug level 2 + trace all symbols.\n"));
4814 fprintf (stderr, _(" 4\tDebug level 3 + trace memory allocations.\n"));
4815 return 1;
4816 }
4817
4818 if (obj_in_name == (char *) 0)
4819 obj_in_name = object_name;
4820
4821 if (rename_output && rename (object_name, obj_in_name) != 0)
4822 {
4823 char *buffer = (char *) allocate_multiple_pages (4);
4824 int len;
4825 int len2;
4826 int in_fd;
4827 int out_fd;
4828
4829 /* Rename failed, copy input file */
4830 in_fd = open (object_name, O_RDONLY, 0666);
4831 if (in_fd < 0)
4832 pfatal_with_name (object_name);
4833
4834 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4835 if (out_fd < 0)
4836 pfatal_with_name (obj_in_name);
4837
4838 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4839 {
4840 len2 = write (out_fd, buffer, len);
4841 if (len2 < 0)
4842 pfatal_with_name (object_name);
4843
4844 if (len != len2)
4845 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4846 }
4847
4848 free_multiple_pages ((page_t *) buffer, 4);
4849
4850 if (len < 0)
4851 pfatal_with_name (object_name);
4852
4853 if (close (in_fd) < 0)
4854 pfatal_with_name (object_name);
4855
4856 if (close (out_fd) < 0)
4857 pfatal_with_name (obj_in_name);
4858 }
4859
4860 /* Must open input before output, since the output may be the same file, and
4861 we need to get the input handle before truncating it. */
4862 obj_in_stream = fopen (obj_in_name, "r");
4863 if (obj_in_stream == (FILE *) 0)
4864 pfatal_with_name (obj_in_name);
4865
4866 if (delete_input && unlink (obj_in_name) != 0)
4867 pfatal_with_name (obj_in_name);
4868
4869 object_stream = fopen (object_name, "w");
4870 if (object_stream == (FILE *) 0)
4871 pfatal_with_name (object_name);
4872
4873 if (strcmp (argv[optind], "-") != 0)
4874 {
4875 input_name = argv[optind];
4876 if (freopen (argv[optind], "r", stdin) != stdin)
4877 pfatal_with_name (argv[optind]);
4878 }
4879
4880 copy_object (); /* scan & copy object file */
4881 parse_input (); /* scan all of input */
4882
4883 update_headers (); /* write out tfile */
4884 write_object ();
4885
4886 if (debug)
4887 {
4888 fprintf (stderr, "\n\tAllocation summary:\n\n");
4889 for (i = (int) alloc_type_none; i < (int) alloc_type_last; i++)
4890 if (alloc_counts[i].total_alloc)
4891 {
4892 fprintf (stderr,
4893 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
4894 alloc_counts[i].alloc_name,
4895 alloc_counts[i].total_alloc,
4896 alloc_counts[i].total_free,
4897 alloc_counts[i].total_pages);
4898 }
4899 }
4900
4901 return (had_errors) ? 1 : 0;
4902 }
4903
4904 \f
4905 /* Catch a signal and exit without dumping core. */
4906
4907 STATIC void
4908 catch_signal (int signum)
4909 {
4910 (void) signal (signum, SIG_DFL); /* just in case... */
4911 fatal ("%s", strsignal (signum));
4912 }
4913
4914 /* Print a fatal error message. NAME is the text.
4915 Also include a system error message based on `errno'. */
4916
4917 void
4918 pfatal_with_name (const char *msg)
4919 {
4920 int save_errno = errno; /* just in case.... */
4921 if (line_number > 0)
4922 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
4923 else
4924 fprintf (stderr, "%s:", progname);
4925
4926 errno = save_errno;
4927 if (errno == 0)
4928 fprintf (stderr, "[errno = 0] %s\n", msg);
4929 else
4930 perror (msg);
4931
4932 exit (1);
4933 }
4934
4935 \f
4936 /* Procedure to die with an out of bounds error message. It has
4937 type int, so it can be used with an ?: expression within the
4938 ORIG_xxx macros, but the function never returns. */
4939
4940 static int
4941 out_of_bounds (symint_t indx, /* index that is out of bounds */
4942 symint_t max, /* maximum index */
4943 const char *str, /* string to print out */
4944 int prog_line) /* line number within mips-tfile.c */
4945 {
4946 if (indx < max) /* just in case */
4947 return 0;
4948
4949 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n",
4950 progname, input_name, line_number, indx, str, max, prog_line);
4951
4952 exit (1);
4953 return 0; /* turn off warning messages */
4954 }
4955
4956 \f
4957 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
4958 like sbrk's behind its back (or sbrk isn't available). If we use
4959 sbrk, we assume it gives us zeroed pages. */
4960
4961 #ifndef MALLOC_CHECK
4962 #ifdef USE_MALLOC
4963
4964 STATIC page_t *
4965 allocate_cluster (Size_t npages)
4966 {
4967 page_t *value = xcalloc (npages, PAGE_USIZE);
4968
4969 if (debug > 3)
4970 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4971
4972 return value;
4973 }
4974
4975 #else /* USE_MALLOC */
4976
4977 STATIC page_t *
4978 allocate_cluster (Size_t npages)
4979 {
4980 page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
4981 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
4982
4983 if (offset != 0) /* align to a page boundary */
4984 {
4985 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
4986 pfatal_with_name ("allocate_cluster");
4987
4988 ptr = (page_t *) (((char *) ptr) + PAGE_SIZE - offset);
4989 }
4990
4991 if (sbrk (npages * PAGE_USIZE) == (char *) -1)
4992 pfatal_with_name ("allocate_cluster");
4993
4994 if (debug > 3)
4995 fprintf (stderr, "\talloc\tnpages = %lu, value = %p\n",
4996 (unsigned long) npages, (void *) ptr);
4997
4998 return ptr;
4999 }
5000
5001 #endif /* USE_MALLOC */
5002
5003
5004 static page_t *cluster_ptr = NULL;
5005 static unsigned pages_left = 0;
5006
5007 #endif /* MALLOC_CHECK */
5008
5009
5010 /* Allocate some pages (which is initialized to 0). */
5011
5012 STATIC page_t *
5013 allocate_multiple_pages (Size_t npages)
5014 {
5015 #ifndef MALLOC_CHECK
5016 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5017 {
5018 pages_left = MAX_CLUSTER_PAGES;
5019 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5020 }
5021
5022 if (npages <= pages_left)
5023 {
5024 page_t *ptr = cluster_ptr;
5025 cluster_ptr += npages;
5026 pages_left -= npages;
5027 return ptr;
5028 }
5029
5030 return allocate_cluster (npages);
5031
5032 #else /* MALLOC_CHECK */
5033 return xcalloc (npages, PAGE_SIZE);
5034
5035 #endif /* MALLOC_CHECK */
5036 }
5037
5038
5039 /* Release some pages. */
5040
5041 STATIC void
5042 free_multiple_pages (page_t *page_ptr, Size_t npages)
5043 {
5044 #ifndef MALLOC_CHECK
5045 if (pages_left == 0)
5046 {
5047 cluster_ptr = page_ptr;
5048 pages_left = npages;
5049 }
5050
5051 else if ((page_ptr + npages) == cluster_ptr)
5052 {
5053 cluster_ptr -= npages;
5054 pages_left += npages;
5055 }
5056
5057 /* otherwise the page is not freed. If more than call is
5058 done, we probably should worry about it, but at present,
5059 the free pages is done right after an allocate. */
5060
5061 #else /* MALLOC_CHECK */
5062 free (page_ptr);
5063
5064 #endif /* MALLOC_CHECK */
5065 }
5066
5067
5068 /* Allocate one page (which is initialized to 0). */
5069
5070 STATIC page_t *
5071 allocate_page (void)
5072 {
5073 #ifndef MALLOC_CHECK
5074 if (pages_left == 0)
5075 {
5076 pages_left = MAX_CLUSTER_PAGES;
5077 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5078 }
5079
5080 pages_left--;
5081 return cluster_ptr++;
5082
5083 #else /* MALLOC_CHECK */
5084 return xcalloc (1, PAGE_SIZE);
5085
5086 #endif /* MALLOC_CHECK */
5087 }
5088
5089 \f
5090 /* Allocate scoping information. */
5091
5092 STATIC scope_t *
5093 allocate_scope (void)
5094 {
5095 scope_t *ptr;
5096 static scope_t initial_scope;
5097
5098 #ifndef MALLOC_CHECK
5099 ptr = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5100 if (ptr != (scope_t *) 0)
5101 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr->free;
5102
5103 else
5104 {
5105 int unallocated = alloc_counts[ (int) alloc_type_scope ].unallocated;
5106 page_t *cur_page = alloc_counts[ (int) alloc_type_scope ].cur_page;
5107
5108 if (unallocated == 0)
5109 {
5110 unallocated = PAGE_SIZE / sizeof (scope_t);
5111 alloc_counts[ (int) alloc_type_scope ].cur_page = cur_page = allocate_page ();
5112 alloc_counts[ (int) alloc_type_scope ].total_pages++;
5113 }
5114
5115 ptr = &cur_page->scope[ --unallocated ];
5116 alloc_counts[ (int) alloc_type_scope ].unallocated = unallocated;
5117 }
5118
5119 #else
5120 ptr = xmalloc (sizeof (scope_t));
5121
5122 #endif
5123
5124 alloc_counts[ (int) alloc_type_scope ].total_alloc++;
5125 *ptr = initial_scope;
5126 return ptr;
5127 }
5128
5129 /* Free scoping information. */
5130
5131 STATIC void
5132 free_scope (scope_t *ptr)
5133 {
5134 alloc_counts[ (int) alloc_type_scope ].total_free++;
5135
5136 #ifndef MALLOC_CHECK
5137 ptr->free = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5138 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr;
5139
5140 #else
5141 free (ptr);
5142 #endif
5143
5144 }
5145
5146 \f
5147 /* Allocate links for pages in a virtual array. */
5148
5149 STATIC vlinks_t *
5150 allocate_vlinks (void)
5151 {
5152 vlinks_t *ptr;
5153 static vlinks_t initial_vlinks;
5154
5155 #ifndef MALLOC_CHECK
5156 int unallocated = alloc_counts[ (int) alloc_type_vlinks ].unallocated;
5157 page_t *cur_page = alloc_counts[ (int) alloc_type_vlinks ].cur_page;
5158
5159 if (unallocated == 0)
5160 {
5161 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5162 alloc_counts[ (int) alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5163 alloc_counts[ (int) alloc_type_vlinks ].total_pages++;
5164 }
5165
5166 ptr = &cur_page->vlinks[ --unallocated ];
5167 alloc_counts[ (int) alloc_type_vlinks ].unallocated = unallocated;
5168
5169 #else
5170 ptr = xmalloc (sizeof (vlinks_t));
5171
5172 #endif
5173
5174 alloc_counts[ (int) alloc_type_vlinks ].total_alloc++;
5175 *ptr = initial_vlinks;
5176 return ptr;
5177 }
5178
5179 \f
5180 /* Allocate string hash buckets. */
5181
5182 STATIC shash_t *
5183 allocate_shash (void)
5184 {
5185 shash_t *ptr;
5186 static shash_t initial_shash;
5187
5188 #ifndef MALLOC_CHECK
5189 int unallocated = alloc_counts[ (int) alloc_type_shash ].unallocated;
5190 page_t *cur_page = alloc_counts[ (int) alloc_type_shash ].cur_page;
5191
5192 if (unallocated == 0)
5193 {
5194 unallocated = PAGE_SIZE / sizeof (shash_t);
5195 alloc_counts[ (int) alloc_type_shash ].cur_page = cur_page = allocate_page ();
5196 alloc_counts[ (int) alloc_type_shash ].total_pages++;
5197 }
5198
5199 ptr = &cur_page->shash[ --unallocated ];
5200 alloc_counts[ (int) alloc_type_shash ].unallocated = unallocated;
5201
5202 #else
5203 ptr = xmalloc (sizeof (shash_t));
5204
5205 #endif
5206
5207 alloc_counts[ (int) alloc_type_shash ].total_alloc++;
5208 *ptr = initial_shash;
5209 return ptr;
5210 }
5211
5212 \f
5213 /* Allocate type hash buckets. */
5214
5215 STATIC thash_t *
5216 allocate_thash (void)
5217 {
5218 thash_t *ptr;
5219 static thash_t initial_thash;
5220
5221 #ifndef MALLOC_CHECK
5222 int unallocated = alloc_counts[ (int) alloc_type_thash ].unallocated;
5223 page_t *cur_page = alloc_counts[ (int) alloc_type_thash ].cur_page;
5224
5225 if (unallocated == 0)
5226 {
5227 unallocated = PAGE_SIZE / sizeof (thash_t);
5228 alloc_counts[ (int) alloc_type_thash ].cur_page = cur_page = allocate_page ();
5229 alloc_counts[ (int) alloc_type_thash ].total_pages++;
5230 }
5231
5232 ptr = &cur_page->thash[ --unallocated ];
5233 alloc_counts[ (int) alloc_type_thash ].unallocated = unallocated;
5234
5235 #else
5236 ptr = xmalloc (sizeof (thash_t));
5237
5238 #endif
5239
5240 alloc_counts[ (int) alloc_type_thash ].total_alloc++;
5241 *ptr = initial_thash;
5242 return ptr;
5243 }
5244
5245 \f
5246 /* Allocate structure, union, or enum tag information. */
5247
5248 STATIC tag_t *
5249 allocate_tag (void)
5250 {
5251 tag_t *ptr;
5252 static tag_t initial_tag;
5253
5254 #ifndef MALLOC_CHECK
5255 ptr = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5256 if (ptr != (tag_t *) 0)
5257 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr->free;
5258
5259 else
5260 {
5261 int unallocated = alloc_counts[ (int) alloc_type_tag ].unallocated;
5262 page_t *cur_page = alloc_counts[ (int) alloc_type_tag ].cur_page;
5263
5264 if (unallocated == 0)
5265 {
5266 unallocated = PAGE_SIZE / sizeof (tag_t);
5267 alloc_counts[ (int) alloc_type_tag ].cur_page = cur_page = allocate_page ();
5268 alloc_counts[ (int) alloc_type_tag ].total_pages++;
5269 }
5270
5271 ptr = &cur_page->tag[ --unallocated ];
5272 alloc_counts[ (int) alloc_type_tag ].unallocated = unallocated;
5273 }
5274
5275 #else
5276 ptr = xmalloc (sizeof (tag_t));
5277
5278 #endif
5279
5280 alloc_counts[ (int) alloc_type_tag ].total_alloc++;
5281 *ptr = initial_tag;
5282 return ptr;
5283 }
5284
5285 /* Free scoping information. */
5286
5287 STATIC void
5288 free_tag (tag_t *ptr)
5289 {
5290 alloc_counts[ (int) alloc_type_tag ].total_free++;
5291
5292 #ifndef MALLOC_CHECK
5293 ptr->free = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5294 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr;
5295
5296 #else
5297 free (ptr);
5298 #endif
5299
5300 }
5301
5302 \f
5303 /* Allocate forward reference to a yet unknown tag. */
5304
5305 STATIC forward_t *
5306 allocate_forward (void)
5307 {
5308 forward_t *ptr;
5309 static forward_t initial_forward;
5310
5311 #ifndef MALLOC_CHECK
5312 ptr = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5313 if (ptr != (forward_t *) 0)
5314 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr->free;
5315
5316 else
5317 {
5318 int unallocated = alloc_counts[ (int) alloc_type_forward ].unallocated;
5319 page_t *cur_page = alloc_counts[ (int) alloc_type_forward ].cur_page;
5320
5321 if (unallocated == 0)
5322 {
5323 unallocated = PAGE_SIZE / sizeof (forward_t);
5324 alloc_counts[ (int) alloc_type_forward ].cur_page = cur_page = allocate_page ();
5325 alloc_counts[ (int) alloc_type_forward ].total_pages++;
5326 }
5327
5328 ptr = &cur_page->forward[ --unallocated ];
5329 alloc_counts[ (int) alloc_type_forward ].unallocated = unallocated;
5330 }
5331
5332 #else
5333 ptr = xmalloc (sizeof (forward_t));
5334
5335 #endif
5336
5337 alloc_counts[ (int) alloc_type_forward ].total_alloc++;
5338 *ptr = initial_forward;
5339 return ptr;
5340 }
5341
5342 /* Free scoping information. */
5343
5344 STATIC void
5345 free_forward (forward_t *ptr)
5346 {
5347 alloc_counts[ (int) alloc_type_forward ].total_free++;
5348
5349 #ifndef MALLOC_CHECK
5350 ptr->free = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5351 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr;
5352
5353 #else
5354 free (ptr);
5355 #endif
5356
5357 }
5358
5359 \f
5360 /* Allocate head of type hash list. */
5361
5362 STATIC thead_t *
5363 allocate_thead (void)
5364 {
5365 thead_t *ptr;
5366 static thead_t initial_thead;
5367
5368 #ifndef MALLOC_CHECK
5369 ptr = alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5370 if (ptr != (thead_t *) 0)
5371 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr->free;
5372
5373 else
5374 {
5375 int unallocated = alloc_counts[ (int) alloc_type_thead ].unallocated;
5376 page_t *cur_page = alloc_counts[ (int) alloc_type_thead ].cur_page;
5377
5378 if (unallocated == 0)
5379 {
5380 unallocated = PAGE_SIZE / sizeof (thead_t);
5381 alloc_counts[ (int) alloc_type_thead ].cur_page = cur_page = allocate_page ();
5382 alloc_counts[ (int) alloc_type_thead ].total_pages++;
5383 }
5384
5385 ptr = &cur_page->thead[ --unallocated ];
5386 alloc_counts[ (int) alloc_type_thead ].unallocated = unallocated;
5387 }
5388
5389 #else
5390 ptr = xmalloc (sizeof (thead_t));
5391
5392 #endif
5393
5394 alloc_counts[ (int) alloc_type_thead ].total_alloc++;
5395 *ptr = initial_thead;
5396 return ptr;
5397 }
5398
5399 /* Free scoping information. */
5400
5401 STATIC void
5402 free_thead (thead_t *ptr)
5403 {
5404 alloc_counts[ (int) alloc_type_thead ].total_free++;
5405
5406 #ifndef MALLOC_CHECK
5407 ptr->free = (thead_t *) alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5408 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr;
5409
5410 #else
5411 free (ptr);
5412 #endif
5413
5414 }
5415
5416 #endif /* MIPS_DEBUGGING_INFO */
5417
5418 \f
5419 /* Output an error message and exit. */
5420
5421 void
5422 fatal (const char *format, ...)
5423 {
5424 va_list ap;
5425
5426 va_start (ap, format);
5427
5428 if (line_number > 0)
5429 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5430 else
5431 fprintf (stderr, "%s:", progname);
5432
5433 vfprintf (stderr, format, ap);
5434 va_end (ap);
5435 fprintf (stderr, "\n");
5436 if (line_number > 0)
5437 fprintf (stderr, "line:\t%s\n", cur_line_start);
5438
5439 saber_stop ();
5440 exit (1);
5441 }
5442
5443 void
5444 error (const char *format, ...)
5445 {
5446 va_list ap;
5447
5448 va_start (ap, format);
5449
5450 if (line_number > 0)
5451 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5452 else
5453 fprintf (stderr, "%s:", progname);
5454
5455 vfprintf (stderr, format, ap);
5456 fprintf (stderr, "\n");
5457 if (line_number > 0)
5458 fprintf (stderr, "line:\t%s\n", cur_line_start);
5459
5460 had_errors++;
5461 va_end (ap);
5462
5463 saber_stop ();
5464 }
5465
5466 /* More 'friendly' abort that prints the line and file. */
5467
5468 void
5469 fancy_abort (const char *file, int line, const char *func)
5470 {
5471 fatal ("abort in %s, at %s:%d", func, file, line);
5472 }
5473 \f
5474
5475 /* When `malloc.c' is compiled with `rcheck' defined,
5476 it calls this function to report clobberage. */
5477
5478 void
5479 botch (const char *s)
5480 {
5481 fatal ("%s", s);
5482 }
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