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Update concepts branch to revision 131834
[official-gcc.git] / gcc / mips-tfile.c
blob56a953747e42d84d8bf1b63656126d3d4fad1353
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, 2008 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_DIRECTORY_STRUCTURE
670 #include <a.out.h>
671 #else
672 #include "mips/a.out.h"
673 #endif /* CROSS_DIRECTORY_STRUCTURE */
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 union {
2355 unsigned char c[4];
2356 int i;
2357 } endian_test;
2358
2359 memset (&init_file, 0, sizeof (init_file));
2360
2361 init_file.fdr.lang = langC;
2362 init_file.fdr.fMerge = 1;
2363 init_file.fdr.glevel = GLEVEL_2;
2364
2365 /* mips-tfile doesn't attempt to perform byte swapping and always writes
2366 out integers in its native ordering. For cross-compilers, this need
2367 not be the same as either the host or the target. The simplest thing
2368 to do is skip the configury and perform an introspective test. */
2369 /* ??? Despite the name, mips-tfile is currently only used on alpha/Tru64
2370 and would/may require significant work to be used in cross-compiler
2371 configurations, so we could simply admit defeat and hard code this as
2372 little-endian, i.e. init_file.fdr.fBigendian = 0. */
2373 endian_test.i = 1;
2374 if (endian_test.c[3])
2375 init_file.fdr.fBigendian = 1;
2376
2377 INITIALIZE_VARRAY (&init_file.strings, char);
2378 INITIALIZE_VARRAY (&init_file.symbols, SYMR);
2379 INITIALIZE_VARRAY (&init_file.procs, PDR);
2380 INITIALIZE_VARRAY (&init_file.aux_syms, AUXU);
2381
2382 init_file_initialized = 1;
2383 }
2384
2385 /* Add a new filename, and set up all of the file relative
2386 virtual arrays (strings, symbols, aux syms, etc.). Record
2387 where the current file structure lives. */
2388
2389 STATIC void
2390 add_file (const char *file_start, /* first byte in string */
2391 const char *file_end_p1) /* first byte after string */
2392 {
2393 static char zero_bytes[2] = { '\0', '\0' };
2394
2395 Ptrdiff_t len = file_end_p1 - file_start;
2396 int first_ch = *file_start;
2397 efdr_t *file_ptr;
2398
2399 if (debug)
2400 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start);
2401
2402 /* See if the file has already been created. */
2403 for (file_ptr = first_file;
2404 file_ptr != (efdr_t *) 0;
2405 file_ptr = file_ptr->next_file)
2406 {
2407 if (first_ch == file_ptr->name[0]
2408 && file_ptr->name[len] == '\0'
2409 && memcmp (file_start, file_ptr->name, len) == 0)
2410 {
2411 cur_file_ptr = file_ptr;
2412 break;
2413 }
2414 }
2415
2416 /* If this is a new file, create it. */
2417 if (file_ptr == (efdr_t *) 0)
2418 {
2419 if (file_desc.objects_last_page == file_desc.objects_per_page)
2420 add_varray_page (&file_desc);
2421
2422 if (! init_file_initialized)
2423 initialize_init_file ();
2424
2425 file_ptr = cur_file_ptr
2426 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2427 *file_ptr = init_file;
2428
2429 file_ptr->file_index = file_desc.num_allocated++;
2430
2431 /* Allocate the string hash table. */
2432 file_ptr->shash_head = (shash_t **) allocate_page ();
2433
2434 /* Make sure 0 byte in string table is null */
2435 add_string (&file_ptr->strings,
2436 &file_ptr->shash_head[0],
2437 &zero_bytes[0],
2438 &zero_bytes[0],
2439 (shash_t **) 0);
2440
2441 if (file_end_p1 - file_start > (long) PAGE_USIZE-2)
2442 fatal ("filename goes over one page boundary");
2443
2444 /* Push the start of the filename. We assume that the filename
2445 will be stored at string offset 1. */
2446 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2447 (symint_t) 0, (symint_t) 0);
2448 file_ptr->fdr.rss = 1;
2449 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2450 file_ptr->name_len = file_end_p1 - file_start;
2451
2452 /* Update the linked list of file descriptors. */
2453 *last_file_ptr = file_ptr;
2454 last_file_ptr = &file_ptr->next_file;
2455
2456 /* Add void & int types to the file (void should be first to catch
2457 errant 0's within the index fields). */
2458 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2459 hash_yes,
2460 &cur_file_ptr->thash_head[0]);
2461
2462 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2463 hash_yes,
2464 &cur_file_ptr->thash_head[0]);
2465 }
2466 }
2467
2468 \f
2469 /* Add a stream of random bytes to a varray. */
2470
2471 STATIC void
2472 add_bytes (varray_t *vp, /* virtual array to add too */
2473 char *input_ptr, /* start of the bytes */
2474 Size_t nitems) /* # items to move */
2475 {
2476 Size_t move_items;
2477 Size_t move_bytes;
2478 char *ptr;
2479
2480 while (nitems > 0)
2481 {
2482 if (vp->objects_last_page >= vp->objects_per_page)
2483 add_varray_page (vp);
2484
2485 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2486 move_items = vp->objects_per_page - vp->objects_last_page;
2487 if (move_items > nitems)
2488 move_items = nitems;
2489
2490 move_bytes = move_items * vp->object_size;
2491 nitems -= move_items;
2492
2493 if (move_bytes >= 32)
2494 {
2495 (void) memcpy (ptr, input_ptr, move_bytes);
2496 input_ptr += move_bytes;
2497 }
2498 else
2499 {
2500 while (move_bytes-- > 0)
2501 *ptr++ = *input_ptr++;
2502 }
2503 }
2504 }
2505
2506 \f
2507 /* Convert storage class to string. */
2508
2509 STATIC const char *
2510 sc_to_string (sc_t storage_class)
2511 {
2512 switch (storage_class)
2513 {
2514 case sc_Nil: return "Nil,";
2515 case sc_Text: return "Text,";
2516 case sc_Data: return "Data,";
2517 case sc_Bss: return "Bss,";
2518 case sc_Register: return "Register,";
2519 case sc_Abs: return "Abs,";
2520 case sc_Undefined: return "Undefined,";
2521 case sc_CdbLocal: return "CdbLocal,";
2522 case sc_Bits: return "Bits,";
2523 case sc_CdbSystem: return "CdbSystem,";
2524 case sc_RegImage: return "RegImage,";
2525 case sc_Info: return "Info,";
2526 case sc_UserStruct: return "UserStruct,";
2527 case sc_SData: return "SData,";
2528 case sc_SBss: return "SBss,";
2529 case sc_RData: return "RData,";
2530 case sc_Var: return "Var,";
2531 case sc_Common: return "Common,";
2532 case sc_SCommon: return "SCommon,";
2533 case sc_VarRegister: return "VarRegister,";
2534 case sc_Variant: return "Variant,";
2535 case sc_SUndefined: return "SUndefined,";
2536 case sc_Init: return "Init,";
2537 case sc_Max: return "Max,";
2538 }
2539
2540 return "???,";
2541 }
2542
2543 \f
2544 /* Convert symbol type to string. */
2545
2546 STATIC const char *
2547 st_to_string (st_t symbol_type)
2548 {
2549 switch (symbol_type)
2550 {
2551 case st_Nil: return "Nil,";
2552 case st_Global: return "Global,";
2553 case st_Static: return "Static,";
2554 case st_Param: return "Param,";
2555 case st_Local: return "Local,";
2556 case st_Label: return "Label,";
2557 case st_Proc: return "Proc,";
2558 case st_Block: return "Block,";
2559 case st_End: return "End,";
2560 case st_Member: return "Member,";
2561 case st_Typedef: return "Typedef,";
2562 case st_File: return "File,";
2563 case st_RegReloc: return "RegReloc,";
2564 case st_Forward: return "Forward,";
2565 case st_StaticProc: return "StaticProc,";
2566 case st_Constant: return "Constant,";
2567 case st_Str: return "String,";
2568 case st_Number: return "Number,";
2569 case st_Expr: return "Expr,";
2570 case st_Type: return "Type,";
2571 case st_Max: return "Max,";
2572 }
2573
2574 return "???,";
2575 }
2576
2577 \f
2578 /* Read a line from standard input, and return the start of the buffer
2579 (which is grows if the line is too big). We split lines at the
2580 semi-colon, and return each logical line independently. */
2581
2582 STATIC char *
2583 read_line (void)
2584 {
2585 static int line_split_p = 0;
2586 int string_p = 0;
2587 int comment_p = 0;
2588 int ch;
2589 char *ptr;
2590
2591 if (cur_line_start == (char *) 0)
2592 { /* allocate initial page */
2593 cur_line_start = (char *) allocate_page ();
2594 cur_line_alloc = PAGE_SIZE;
2595 }
2596
2597 if (!line_split_p)
2598 line_number++;
2599
2600 line_split_p = 0;
2601 cur_line_nbytes = 0;
2602
2603 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2604 {
2605 if (++cur_line_nbytes >= cur_line_alloc-1)
2606 {
2607 int num_pages = cur_line_alloc / PAGE_SIZE;
2608 char *old_buffer = cur_line_start;
2609
2610 cur_line_alloc += PAGE_SIZE;
2611 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2612 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2613
2614 ptr = cur_line_start + cur_line_nbytes - 1;
2615 }
2616
2617 if (ch == '\n')
2618 {
2619 *ptr++ = '\n';
2620 *ptr = '\0';
2621 cur_line_ptr = cur_line_start;
2622 return cur_line_ptr;
2623 }
2624
2625 else if (ch == '\0')
2626 error ("null character found in input");
2627
2628 else if (!comment_p)
2629 {
2630 if (ch == '"')
2631 string_p = !string_p;
2632
2633 else if (ch == '#')
2634 comment_p++;
2635
2636 else if (ch == ';' && !string_p)
2637 {
2638 line_split_p = 1;
2639 *ptr++ = '\n';
2640 *ptr = '\0';
2641 cur_line_ptr = cur_line_start;
2642 return cur_line_ptr;
2643 }
2644 }
2645 }
2646
2647 if (ferror (stdin))
2648 pfatal_with_name (input_name);
2649
2650 cur_line_ptr = (char *) 0;
2651 return (char *) 0;
2652 }
2653
2654 \f
2655 /* Parse #.begin directives which have a label as the first argument
2656 which gives the location of the start of the block. */
2657
2658 STATIC void
2659 parse_begin (const char *start)
2660 {
2661 const char *end_p1; /* end of label */
2662 int ch;
2663 shash_t *hash_ptr; /* hash pointer to lookup label */
2664
2665 if (cur_file_ptr == (efdr_t *) 0)
2666 {
2667 error ("#.begin directive without a preceding .file directive");
2668 return;
2669 }
2670
2671 if (cur_proc_ptr == (PDR *) 0)
2672 {
2673 error ("#.begin directive without a preceding .ent directive");
2674 return;
2675 }
2676
2677 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2678 ;
2679
2680 hash_ptr = hash_string (start,
2681 end_p1 - start,
2682 &orig_str_hash[0],
2683 (symint_t *) 0);
2684
2685 if (hash_ptr == (shash_t *) 0)
2686 {
2687 error ("label %.*s not found for #.begin",
2688 (int) (end_p1 - start), start);
2689 return;
2690 }
2691
2692 if (cur_oproc_begin == (SYMR *) 0)
2693 {
2694 error ("procedure table %.*s not found for #.begin",
2695 (int) (end_p1 - start), start);
2696 return;
2697 }
2698
2699 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2700 st_Block, sc_Text,
2701 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2702 (symint_t) 0);
2703 }
2704
2705 \f
2706 /* Parse #.bend directives which have a label as the first argument
2707 which gives the location of the end of the block. */
2708
2709 STATIC void
2710 parse_bend (const char *start)
2711 {
2712 const char *end_p1; /* end of label */
2713 int ch;
2714 shash_t *hash_ptr; /* hash pointer to lookup label */
2715
2716 if (cur_file_ptr == (efdr_t *) 0)
2717 {
2718 error ("#.begin directive without a preceding .file directive");
2719 return;
2720 }
2721
2722 if (cur_proc_ptr == (PDR *) 0)
2723 {
2724 error ("#.bend directive without a preceding .ent directive");
2725 return;
2726 }
2727
2728 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2729 ;
2730
2731 hash_ptr = hash_string (start,
2732 end_p1 - start,
2733 &orig_str_hash[0],
2734 (symint_t *) 0);
2735
2736 if (hash_ptr == (shash_t *) 0)
2737 {
2738 error ("label %.*s not found for #.bend", (int) (end_p1 - start), start);
2739 return;
2740 }
2741
2742 if (cur_oproc_begin == (SYMR *) 0)
2743 {
2744 error ("procedure table %.*s not found for #.bend",
2745 (int) (end_p1 - start), start);
2746 return;
2747 }
2748
2749 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2750 st_End, sc_Text,
2751 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2752 (symint_t) 0);
2753 }
2754
2755 \f
2756 /* Parse #.def directives, which are contain standard COFF subdirectives
2757 to describe the debugging format. These subdirectives include:
2758
2759 .scl specify storage class
2760 .val specify a value
2761 .endef specify end of COFF directives
2762 .type specify the type
2763 .size specify the size of an array
2764 .dim specify an array dimension
2765 .tag specify a tag for a struct, union, or enum. */
2766
2767 STATIC void
2768 parse_def (const char *name_start)
2769 {
2770 const char *dir_start; /* start of current directive*/
2771 const char *dir_end_p1; /* end+1 of current directive*/
2772 const char *arg_start; /* start of current argument */
2773 const char *arg_end_p1; /* end+1 of current argument */
2774 const char *name_end_p1; /* end+1 of label */
2775 const char *tag_start = 0; /* start of tag name */
2776 const char *tag_end_p1 = 0; /* end+1 of tag name */
2777 sc_t storage_class = sc_Nil;
2778 st_t symbol_type = st_Nil;
2779 type_info_t t;
2780 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2781 int is_function = 0; /* != 0 if function */
2782 symint_t value = 0;
2783 symint_t indx = cur_file_ptr->void_type;
2784 int error_line = 0;
2785 symint_t arg_number;
2786 symint_t temp_array[ N_TQ ];
2787 int arg_was_number;
2788 int ch, i;
2789 Ptrdiff_t len;
2790
2791 static int inside_enumeration = 0; /* is this an enumeration? */
2792
2793
2794 /* Initialize the type information. */
2795 t = type_info_init;
2796
2797
2798 /* Search for the end of the name being defined. */
2799 /* Allow spaces and such in names for G++ templates, which produce stabs
2800 that look like:
2801
2802 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2803
2804 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2805 ;
2806
2807 if (ch == '\0')
2808 {
2809 error_line = __LINE__;
2810 saber_stop ();
2811 goto bomb_out;
2812 }
2813
2814 /* Parse the remaining subdirectives now. */
2815 dir_start = name_end_p1+1;
2816 for (;;)
2817 {
2818 while ((ch = *dir_start) == ' ' || ch == '\t')
2819 ++dir_start;
2820
2821 if (ch != '.')
2822 {
2823 error_line = __LINE__;
2824 saber_stop ();
2825 goto bomb_out;
2826 }
2827
2828 /* Are we done? */
2829 if (dir_start[1] == 'e'
2830 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2831 break;
2832
2833 /* Pick up the subdirective now. */
2834 for (dir_end_p1 = dir_start+1;
2835 (ch = *dir_end_p1) != ' ' && ch != '\t';
2836 dir_end_p1++)
2837 {
2838 if (ch == '\0' || ISSPACE (ch))
2839 {
2840 error_line = __LINE__;
2841 saber_stop ();
2842 goto bomb_out;
2843 }
2844 }
2845
2846 /* Pick up the subdirective argument now. */
2847 arg_was_number = arg_number = 0;
2848 arg_end_p1 = 0;
2849 arg_start = dir_end_p1+1;
2850 ch = *arg_start;
2851 while (ch == ' ' || ch == '\t')
2852 ch = *++arg_start;
2853
2854 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2855 {
2856 int ch2;
2857 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2858 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
2859 arg_was_number++;
2860 }
2861
2862 else if (ch == '\0' || ISSPACE (ch))
2863 {
2864 error_line = __LINE__;
2865 saber_stop ();
2866 goto bomb_out;
2867 }
2868
2869 if (!arg_was_number)
2870 {
2871 /* Allow spaces and such in names for G++ templates. */
2872 for (arg_end_p1 = arg_start+1;
2873 (ch = *arg_end_p1) != ';' && ch != '\0';
2874 arg_end_p1++)
2875 ;
2876
2877 if (ch == '\0')
2878 {
2879 error_line = __LINE__;
2880 saber_stop ();
2881 goto bomb_out;
2882 }
2883 }
2884
2885 /* Classify the directives now. */
2886 len = dir_end_p1 - dir_start;
2887 switch (dir_start[1])
2888 {
2889 default:
2890 error_line = __LINE__;
2891 saber_stop ();
2892 goto bomb_out;
2893
2894 case 'd':
2895 if (len == sizeof (".dim")-1
2896 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
2897 && arg_was_number)
2898 {
2899 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2900
2901 *t_ptr = arg_number;
2902 while (*arg_end_p1 == ',' && arg_was_number)
2903 {
2904 arg_start = arg_end_p1+1;
2905 ch = *arg_start;
2906 while (ch == ' ' || ch == '\t')
2907 ch = *++arg_start;
2908
2909 arg_was_number = 0;
2910 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2911 {
2912 int ch2;
2913 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2914 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
2915 arg_was_number++;
2916
2917 if (t_ptr == &temp_array[0])
2918 {
2919 error_line = __LINE__;
2920 saber_stop ();
2921 goto bomb_out;
2922 }
2923
2924 *--t_ptr = arg_number;
2925 }
2926 }
2927
2928 /* Reverse order of dimensions. */
2929 while (t_ptr <= &temp_array[ N_TQ-1 ])
2930 {
2931 if (t.num_dims >= N_TQ-1)
2932 {
2933 error_line = __LINE__;
2934 saber_stop ();
2935 goto bomb_out;
2936 }
2937
2938 t.dimensions[ t.num_dims++ ] = *t_ptr++;
2939 }
2940 break;
2941 }
2942 else
2943 {
2944 error_line = __LINE__;
2945 saber_stop ();
2946 goto bomb_out;
2947 }
2948
2949
2950 case 's':
2951 if (len == sizeof (".scl")-1
2952 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
2953 && arg_was_number
2954 && arg_number < ((symint_t) C_MAX))
2955 {
2956 /* If the symbol is a static or external, we have
2957 already gotten the appropriate type and class, so
2958 make sure we don't override those values. This is
2959 needed because there are some type and classes that
2960 are not in COFF, such as short data, etc. */
2961 if (symbol_type == st_Nil)
2962 {
2963 symbol_type = map_coff_sym_type[arg_number];
2964 storage_class = map_coff_storage [arg_number];
2965 }
2966 break;
2967 }
2968
2969 else if (len == sizeof (".size")-1
2970 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
2971 && arg_was_number)
2972 {
2973 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2974
2975 *t_ptr = arg_number;
2976 while (*arg_end_p1 == ',' && arg_was_number)
2977 {
2978 arg_start = arg_end_p1+1;
2979 ch = *arg_start;
2980 while (ch == ' ' || ch == '\t')
2981 ch = *++arg_start;
2982
2983 arg_was_number = 0;
2984 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2985 {
2986 int ch2;
2987 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2988 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
2989 arg_was_number++;
2990
2991 if (t_ptr == &temp_array[0])
2992 {
2993 error_line = __LINE__;
2994 saber_stop ();
2995 goto bomb_out;
2996 }
2997
2998 *--t_ptr = arg_number;
2999 }
3000 }
3001
3002 /* Reverse order of sizes. */
3003 while (t_ptr <= &temp_array[ N_TQ-1 ])
3004 {
3005 if (t.num_sizes >= N_TQ-1)
3006 {
3007 error_line = __LINE__;
3008 saber_stop ();
3009 goto bomb_out;
3010 }
3011
3012 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3013 }
3014 break;
3015 }
3016
3017 else
3018 {
3019 error_line = __LINE__;
3020 saber_stop ();
3021 goto bomb_out;
3022 }
3023
3024
3025 case 't':
3026 if (len == sizeof (".type")-1
3027 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3028 && arg_was_number)
3029 {
3030 tq_t *tq_ptr = &t.type_qualifiers[0];
3031
3032 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3033 t.basic_type = map_coff_types [(int) t.orig_type];
3034 for (i = N_TQ-1; i >= 0; i--)
3035 {
3036 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3037 & N_TMASK);
3038
3039 if (dt != (int) DT_NON)
3040 *tq_ptr++ = map_coff_derived_type [dt];
3041 }
3042
3043 /* If this is a function, ignore it, so that we don't get
3044 two entries (one from the .ent, and one for the .def
3045 that precedes it). Save the type information so that
3046 the end block can properly add it after the begin block
3047 index. For MIPS knows what reason, we must strip off
3048 the function type at this point. */
3049 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3050 {
3051 is_function = 1;
3052 tq_ptr[-1] = tq_Nil;
3053 }
3054
3055 break;
3056 }
3057
3058 else if (len == sizeof (".tag")-1
3059 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3060 {
3061 tag_start = arg_start;
3062 tag_end_p1 = arg_end_p1;
3063 break;
3064 }
3065
3066 else
3067 {
3068 error_line = __LINE__;
3069 saber_stop ();
3070 goto bomb_out;
3071 }
3072
3073
3074 case 'v':
3075 if (len == sizeof (".val")-1
3076 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3077 {
3078 if (arg_was_number)
3079 value = arg_number;
3080
3081 /* If the value is not an integer value, it must be the
3082 name of a static or global item. Look up the name in
3083 the original symbol table to pick up the storage
3084 class, symbol type, etc. */
3085 else
3086 {
3087 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3088 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3089
3090 ext_hash_ptr = hash_string (arg_start,
3091 arg_end_p1 - arg_start,
3092 &ext_str_hash[0],
3093 (symint_t *) 0);
3094
3095 if (ext_hash_ptr != (shash_t *) 0
3096 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3097 eptr = ext_hash_ptr->esym_ptr;
3098
3099 orig_hash_ptr = hash_string (arg_start,
3100 arg_end_p1 - arg_start,
3101 &orig_str_hash[0],
3102 (symint_t *) 0);
3103
3104 if ((orig_hash_ptr == (shash_t *) 0
3105 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3106 && eptr == (EXTR *) 0)
3107 {
3108 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3109 (int) (arg_end_p1 - arg_start),
3110 arg_start);
3111 value = 0;
3112 }
3113 else
3114 {
3115 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3116 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3117 ? orig_hash_ptr->sym_ptr
3118 : &eptr->asym;
3119
3120 symbol_type = (st_t) ptr->st;
3121 storage_class = (sc_t) ptr->sc;
3122 value = ptr->value;
3123 }
3124 }
3125 break;
3126 }
3127 else
3128 {
3129 error_line = __LINE__;
3130 saber_stop ();
3131 goto bomb_out;
3132 }
3133 }
3134
3135 /* Set up to find next directive. */
3136 dir_start = arg_end_p1 + 1;
3137 }
3138
3139
3140 if (storage_class == sc_Bits)
3141 {
3142 t.bitfield = 1;
3143 t.extra_sizes = 1;
3144 }
3145 else
3146 t.extra_sizes = 0;
3147
3148 if (t.num_dims > 0)
3149 {
3150 int num_real_sizes = t.num_sizes - t.extra_sizes;
3151 int diff = t.num_dims - num_real_sizes;
3152 int i = t.num_dims - 1;
3153 int j;
3154
3155 if (num_real_sizes != 1 || diff < 0)
3156 {
3157 error_line = __LINE__;
3158 saber_stop ();
3159 goto bomb_out;
3160 }
3161
3162 /* If this is an array, make sure the same number of dimensions
3163 and sizes were passed, creating extra sizes for multiply
3164 dimensioned arrays if not passed. */
3165
3166 if (diff)
3167 {
3168 for (j = ARRAY_SIZE (t.sizes) - 1; j >= 0; j--)
3169 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3170
3171 t.num_sizes = i + 1;
3172 for ( i--; i >= 0; i-- )
3173 {
3174 if (t.dimensions[ i+1 ])
3175 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3176 else
3177 t.sizes[ i ] = t.sizes[ i+1 ];
3178 }
3179 }
3180 }
3181
3182 /* Except for enumeration members & begin/ending of scopes, put the
3183 type word in the aux. symbol table. */
3184
3185 if (symbol_type == st_Block || symbol_type == st_End)
3186 indx = 0;
3187
3188 else if (inside_enumeration)
3189 indx = cur_file_ptr->void_type;
3190
3191 else
3192 {
3193 if (t.basic_type == bt_Struct
3194 || t.basic_type == bt_Union
3195 || t.basic_type == bt_Enum)
3196 {
3197 if (tag_start == (char *) 0)
3198 {
3199 error ("no tag specified for %.*s",
3200 (int) (name_end_p1 - name_start),
3201 name_start);
3202 return;
3203 }
3204
3205 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t) indexNil,
3206 t.basic_type);
3207 }
3208
3209 if (is_function)
3210 {
3211 last_func_type_info = t;
3212 last_func_eptr = eptr;
3213 return;
3214 }
3215
3216 indx = add_aux_sym_tir (&t,
3217 hash_yes,
3218 &cur_file_ptr->thash_head[0]);
3219 }
3220
3221
3222 /* If this is an external or static symbol, update the appropriate
3223 external symbol. */
3224
3225 if (eptr != (EXTR *) 0
3226 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3227 {
3228 eptr->ifd = cur_file_ptr->file_index;
3229 eptr->asym.index = indx;
3230 }
3231
3232
3233 /* Do any last minute adjustments that are necessary. */
3234 switch (symbol_type)
3235 {
3236 default:
3237 break;
3238
3239
3240 /* For the beginning of structs, unions, and enumerations, the
3241 size info needs to be passed in the value field. */
3242
3243 case st_Block:
3244 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3245 {
3246 error_line = __LINE__;
3247 saber_stop ();
3248 goto bomb_out;
3249 }
3250
3251 else
3252 value = t.sizes[0];
3253
3254 inside_enumeration = (t.orig_type == T_ENUM);
3255 break;
3256
3257
3258 /* For the end of structs, unions, and enumerations, omit the
3259 name which is always ".eos". This needs to be done last, so
3260 that any error reporting above gives the correct name. */
3261
3262 case st_End:
3263 name_start = name_end_p1 = 0;
3264 value = inside_enumeration = 0;
3265 break;
3266
3267
3268 /* Members of structures and unions that aren't bitfields, need
3269 to adjust the value from a byte offset to a bit offset.
3270 Members of enumerations do not have the value adjusted, and
3271 can be distinguished by indx == indexNil. For enumerations,
3272 update the maximum enumeration value. */
3273
3274 case st_Member:
3275 if (!t.bitfield && !inside_enumeration)
3276 value *= 8;
3277
3278 break;
3279 }
3280
3281
3282 /* Add the symbol, except for global symbols outside of functions,
3283 for which the external symbol table is fine enough. */
3284
3285 if (eptr == (EXTR *) 0
3286 || eptr->asym.st == (int) st_Nil
3287 || cur_proc_ptr != (PDR *) 0)
3288 {
3289 symint_t isym = add_local_symbol (name_start, name_end_p1,
3290 symbol_type, storage_class,
3291 value,
3292 indx);
3293
3294 /* Deal with struct, union, and enum tags. */
3295 if (symbol_type == st_Block)
3296 {
3297 /* Create or update the tag information. */
3298 tag_t *tag_ptr = get_tag (name_start,
3299 name_end_p1,
3300 isym,
3301 t.basic_type);
3302
3303 /* If there are any forward references, fill in the appropriate
3304 file and symbol indexes. */
3305
3306 symint_t file_index = cur_file_ptr->file_index;
3307 forward_t *f_next = tag_ptr->forward_ref;
3308 forward_t *f_cur;
3309
3310 while (f_next != (forward_t *) 0)
3311 {
3312 f_cur = f_next;
3313 f_next = f_next->next;
3314
3315 f_cur->ifd_ptr->isym = file_index;
3316 f_cur->index_ptr->rndx.index = isym;
3317
3318 free_forward (f_cur);
3319 }
3320
3321 tag_ptr->forward_ref = (forward_t *) 0;
3322 }
3323 }
3324
3325 /* Normal return */
3326 return;
3327
3328 /* Error return, issue message. */
3329 bomb_out:
3330 if (error_line)
3331 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3332 else
3333 error ("compiler error, badly formed #.def");
3334
3335 return;
3336 }
3337
3338 \f
3339 /* Parse .end directives. */
3340
3341 STATIC void
3342 parse_end (const char *start)
3343 {
3344 const char *start_func, *end_func_p1;
3345 int ch;
3346 symint_t value;
3347 FDR *orig_fdr;
3348
3349 if (cur_file_ptr == (efdr_t *) 0)
3350 {
3351 error (".end directive without a preceding .file directive");
3352 return;
3353 }
3354
3355 if (cur_proc_ptr == (PDR *) 0)
3356 {
3357 error (".end directive without a preceding .ent directive");
3358 return;
3359 }
3360
3361 /* Get the function name, skipping whitespace. */
3362 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3363 ;
3364
3365 ch = *start_func;
3366 if (!IS_ASM_IDENT (ch))
3367 {
3368 error (".end directive has no name");
3369 return;
3370 }
3371
3372 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3373 ;
3374
3375
3376 /* Get the value field for creating the end from the original object
3377 file (which we find by locating the procedure start, and using the
3378 pointer to the end+1 block and backing up. The index points to a
3379 two word aux. symbol, whose first word is the index of the end
3380 symbol, and the second word is the type of the function return
3381 value. */
3382
3383 orig_fdr = cur_file_ptr->orig_fdr;
3384 value = 0;
3385 if (orig_fdr != (FDR *) 0 && cur_oproc_end != (SYMR *) 0)
3386 value = cur_oproc_end->value;
3387
3388 else
3389 error ("cannot find .end block for %.*s",
3390 (int) (end_func_p1 - start_func), start_func);
3391
3392 (void) add_local_symbol (start_func, end_func_p1,
3393 st_End, sc_Text,
3394 value,
3395 (symint_t) 0);
3396
3397 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3398 }
3399
3400 \f
3401 /* Parse .ent directives. */
3402
3403 STATIC void
3404 parse_ent (const char *start)
3405 {
3406 const char *start_func, *end_func_p1;
3407 int ch;
3408
3409 if (cur_file_ptr == (efdr_t *) 0)
3410 {
3411 error (".ent directive without a preceding .file directive");
3412 return;
3413 }
3414
3415 if (cur_proc_ptr != (PDR *) 0)
3416 {
3417 error ("second .ent directive found before .end directive");
3418 return;
3419 }
3420
3421 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3422 ;
3423
3424 ch = *start_func;
3425 if (!IS_ASM_IDENT (ch))
3426 {
3427 error (".ent directive has no name");
3428 return;
3429 }
3430
3431 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3432 ;
3433
3434 (void) add_procedure (start_func, end_func_p1);
3435 }
3436
3437 \f
3438 /* Parse .file directives. */
3439
3440 STATIC void
3441 parse_file (const char *start)
3442 {
3443 char *p;
3444 char *start_name, *end_name_p1;
3445
3446 (void) strtol (start, &p, 0);
3447 if (start == p
3448 || (start_name = strchr (p, '"')) == (char *) 0
3449 || (end_name_p1 = strrchr (++start_name, '"')) == (char *) 0)
3450 {
3451 error ("invalid .file directive");
3452 return;
3453 }
3454
3455 if (cur_proc_ptr != (PDR *) 0)
3456 {
3457 error ("no way to handle .file within .ent/.end section");
3458 return;
3459 }
3460
3461 add_file (start_name, end_name_p1);
3462 }
3463
3464 \f
3465 /* Make sure the @stabs symbol is emitted. */
3466
3467 static void
3468 mark_stabs (const char *start ATTRIBUTE_UNUSED)
3469 {
3470 if (!stabs_seen)
3471 {
3472 /* Add a dummy @stabs symbol. */
3473 stabs_seen = 1;
3474 (void) add_local_symbol (stabs_symbol,
3475 stabs_symbol + sizeof (stabs_symbol),
3476 stNil, scInfo, -1, MIPS_MARK_STAB (0));
3477
3478 }
3479 }
3480
3481 \f
3482 /* Parse .stabs directives.
3483
3484 .stabs directives have five fields:
3485 "string" a string, encoding the type information.
3486 code a numeric code, defined in <stab.h>
3487 0 a zero
3488 0 a zero or line number
3489 value a numeric value or an address.
3490
3491 If the value is relocatable, we transform this into:
3492 iss points as an index into string space
3493 value value from lookup of the name
3494 st st from lookup of the name
3495 sc sc from lookup of the name
3496 index code|CODE_MASK
3497
3498 If the value is not relocatable, we transform this into:
3499 iss points as an index into string space
3500 value value
3501 st st_Nil
3502 sc sc_Nil
3503 index code|CODE_MASK
3504
3505 .stabn directives have four fields (string is null):
3506 code a numeric code, defined in <stab.h>
3507 0 a zero
3508 0 a zero or a line number
3509 value a numeric value or an address. */
3510
3511 STATIC void
3512 parse_stabs_common (const char *string_start, /* start of string or NULL */
3513 const char *string_end, /* end+1 of string or NULL */
3514 const char *rest) /* rest of the directive. */
3515 {
3516 efdr_t *save_file_ptr = cur_file_ptr;
3517 symint_t code;
3518 symint_t value;
3519 char *p;
3520 st_t st;
3521 sc_t sc;
3522 int ch;
3523
3524 if (stabs_seen == 0)
3525 mark_stabs ("");
3526
3527 /* Read code from stabs. */
3528 if (!ISDIGIT (*rest))
3529 {
3530 error ("invalid .stabs/.stabn directive, code is non-numeric");
3531 return;
3532 }
3533
3534 code = strtol (rest, &p, 0);
3535
3536 /* Line number stabs are handled differently, since they have two values,
3537 the line number and the address of the label. We use the index field
3538 (aka code) to hold the line number, and the value field to hold the
3539 address. The symbol type is st_Label, which should be different from
3540 the other stabs, so that gdb can recognize it. */
3541
3542 if (code == (int) N_SLINE)
3543 {
3544 SYMR *sym_ptr, dummy_symr;
3545 shash_t *shash_ptr;
3546
3547 /* Skip ,0, */
3548 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
3549 {
3550 error ("invalid line number .stabs/.stabn directive");
3551 return;
3552 }
3553
3554 code = strtol (p+3, &p, 0);
3555 ch = *++p;
3556 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
3557 {
3558 error ("invalid line number .stabs/.stabn directive");
3559 return;
3560 }
3561
3562 dummy_symr.index = code;
3563 if (dummy_symr.index != code)
3564 {
3565 error ("line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3566 code);
3567
3568 return;
3569 }
3570
3571 shash_ptr = hash_string (p,
3572 strlen (p) - 1,
3573 &orig_str_hash[0],
3574 (symint_t *) 0);
3575
3576 if (shash_ptr == (shash_t *) 0
3577 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3578 {
3579 error ("invalid .stabs/.stabn directive, value not found");
3580 return;
3581 }
3582
3583 if ((st_t) sym_ptr->st != st_Label)
3584 {
3585 error ("invalid line number .stabs/.stabn directive");
3586 return;
3587 }
3588
3589 st = st_Label;
3590 sc = (sc_t) sym_ptr->sc;
3591 value = sym_ptr->value;
3592 }
3593 else
3594 {
3595 /* Skip ,<num>,<num>, */
3596 if (*p++ != ',')
3597 goto failure;
3598 for (; ISDIGIT (*p); p++)
3599 ;
3600 if (*p++ != ',')
3601 goto failure;
3602 for (; ISDIGIT (*p); p++)
3603 ;
3604 if (*p++ != ',')
3605 goto failure;
3606 ch = *p;
3607 if (!IS_ASM_IDENT (ch) && ch != '-')
3608 {
3609 failure:
3610 error ("invalid .stabs/.stabn directive, bad character");
3611 return;
3612 }
3613
3614 if (ISDIGIT (ch) || ch == '-')
3615 {
3616 st = st_Nil;
3617 sc = sc_Nil;
3618 value = strtol (p, &p, 0);
3619 if (*p != '\n')
3620 {
3621 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3622 return;
3623 }
3624 }
3625 else if (!IS_ASM_IDENT (ch))
3626 {
3627 error ("invalid .stabs/.stabn directive, bad character");
3628 return;
3629 }
3630 else
3631 {
3632 SYMR *sym_ptr;
3633 shash_t *shash_ptr;
3634 const char *start, *end_p1;
3635
3636 start = p;
3637 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3638 {
3639 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3640 end_p1 = start + strlen (start) - 1;
3641 }
3642
3643 shash_ptr = hash_string (start,
3644 end_p1 - start,
3645 &orig_str_hash[0],
3646 (symint_t *) 0);
3647
3648 if (shash_ptr == (shash_t *) 0
3649 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3650 {
3651 shash_ptr = hash_string (start,
3652 end_p1 - start,
3653 &ext_str_hash[0],
3654 (symint_t *) 0);
3655
3656 if (shash_ptr == (shash_t *) 0
3657 || shash_ptr->esym_ptr == (EXTR *) 0)
3658 {
3659 error ("invalid .stabs/.stabn directive, value not found");
3660 return;
3661 }
3662 else
3663 sym_ptr = &(shash_ptr->esym_ptr->asym);
3664 }
3665
3666 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3667 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3668 {
3669 sc = scNil;
3670 st = stNil;
3671 }
3672 else
3673 {
3674 sc = (sc_t) sym_ptr->sc;
3675 st = (st_t) sym_ptr->st;
3676 }
3677 value = sym_ptr->value;
3678
3679 ch = *end_p1++;
3680 if (ch != '\n')
3681 {
3682 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
3683 || ((ch != '+') && (ch != '-')))
3684 {
3685 error ("invalid .stabs/.stabn directive, badly formed value");
3686 return;
3687 }
3688 if (ch == '+')
3689 value += strtol (end_p1, &p, 0);
3690 else if (ch == '-')
3691 value -= strtol (end_p1, &p, 0);
3692
3693 if (*p != '\n')
3694 {
3695 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3696 return;
3697 }
3698 }
3699 }
3700 code = MIPS_MARK_STAB (code);
3701 }
3702
3703 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3704 /* Restore normal file type. */
3705 cur_file_ptr = save_file_ptr;
3706 }
3707
3708
3709 STATIC void
3710 parse_stabs (const char *start)
3711 {
3712 const char *end = strchr (start+1, '"');
3713
3714 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3715 {
3716 error ("invalid .stabs directive, no string");
3717 return;
3718 }
3719
3720 parse_stabs_common (start+1, end, end+2);
3721 }
3722
3723
3724 STATIC void
3725 parse_stabn (const char *start)
3726 {
3727 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3728 }
3729
3730 \f
3731 /* Parse the input file, and write the lines to the output file
3732 if needed. */
3733
3734 STATIC void
3735 parse_input (void)
3736 {
3737 char *p;
3738 Size_t i;
3739 thead_t *ptag_head;
3740 tag_t *ptag;
3741 tag_t *ptag_next;
3742
3743 if (debug)
3744 fprintf (stderr, "\tinput\n");
3745
3746 /* Add a dummy scope block around the entire compilation unit for
3747 structures defined outside of blocks. */
3748 ptag_head = allocate_thead ();
3749 ptag_head->first_tag = 0;
3750 ptag_head->prev = cur_tag_head;
3751 cur_tag_head = ptag_head;
3752
3753 while ((p = read_line ()) != (char *) 0)
3754 {
3755 /* Skip leading blanks. */
3756 while (ISSPACE ((unsigned char)*p))
3757 p++;
3758
3759 /* See if it's a directive we handle. If so, dispatch handler. */
3760 for (i = 0; i < ARRAY_SIZE (pseudo_ops); i++)
3761 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3762 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len])))
3763 {
3764 p += pseudo_ops[i].len; /* skip to first argument */
3765 while (ISSPACE ((unsigned char)*p))
3766 p++;
3767
3768 (*pseudo_ops[i].func)( p );
3769 break;
3770 }
3771 }
3772
3773 /* Process any tags at global level. */
3774 ptag_head = cur_tag_head;
3775 cur_tag_head = ptag_head->prev;
3776
3777 for (ptag = ptag_head->first_tag;
3778 ptag != (tag_t *) 0;
3779 ptag = ptag_next)
3780 {
3781 if (ptag->forward_ref != (forward_t *) 0)
3782 add_unknown_tag (ptag);
3783
3784 ptag_next = ptag->same_block;
3785 ptag->hash_ptr->tag_ptr = ptag->same_name;
3786 free_tag (ptag);
3787 }
3788
3789 free_thead (ptag_head);
3790
3791 }
3792
3793 \f
3794 /* Update the global headers with the final offsets in preparation
3795 to write out the .T file. */
3796
3797 STATIC void
3798 update_headers (void)
3799 {
3800 symint_t i;
3801 efdr_t *file_ptr;
3802
3803 /* Set up the symbolic header. */
3804 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3805 symbolic_header.magic = orig_sym_hdr.magic;
3806 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3807
3808 /* Set up global counts. */
3809 symbolic_header.issExtMax = ext_strings.num_allocated;
3810 symbolic_header.idnMax = dense_num.num_allocated;
3811 symbolic_header.ifdMax = file_desc.num_allocated;
3812 symbolic_header.iextMax = ext_symbols.num_allocated;
3813 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3814 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3815 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3816 symbolic_header.crfd = orig_sym_hdr.crfd;
3817
3818
3819 /* Loop through each file, figuring out how many local syms,
3820 line numbers, etc. there are. Also, put out end symbol
3821 for the filename. */
3822
3823 for (file_ptr = first_file;
3824 file_ptr != (efdr_t *) 0;
3825 file_ptr = file_ptr->next_file)
3826 {
3827 SYMR *sym_start;
3828 SYMR *sym;
3829 SYMR *sym_end_p1;
3830 FDR *fd_ptr = file_ptr->orig_fdr;
3831
3832 cur_file_ptr = file_ptr;
3833
3834 /* Copy st_Static symbols from the original local symbol table if
3835 they did not get added to the new local symbol table.
3836 This happens with stabs-in-ecoff or if the source file is
3837 compiled without debugging. */
3838 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
3839 sym_end_p1 = sym_start + fd_ptr->csym;
3840 for (sym = sym_start; sym < sym_end_p1; sym++)
3841 {
3842 if ((st_t) sym->st == st_Static)
3843 {
3844 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
3845 Size_t len = strlen (str);
3846 shash_t *hash_ptr;
3847
3848 /* Ignore internal labels. */
3849 if (str[0] == '$' && str[1] == 'L')
3850 continue;
3851 hash_ptr = hash_string (str,
3852 (Ptrdiff_t) len,
3853 &file_ptr->shash_head[0],
3854 (symint_t *) 0);
3855 if (hash_ptr == (shash_t *) 0)
3856 {
3857 (void) add_local_symbol (str, str + len,
3858 (st_t) sym->st, (sc_t) sym->sc,
3859 (symint_t) sym->value,
3860 (symint_t) indexNil);
3861 }
3862 }
3863 }
3864 (void) add_local_symbol ((const char *) 0, (const char *) 0,
3865 st_End, sc_Text,
3866 (symint_t) 0,
3867 (symint_t) 0);
3868
3869 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3870 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3871 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3872
3873 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3874 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3875 symbolic_header.isymMax += file_ptr->fdr.csym;
3876
3877 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3878 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3879 symbolic_header.iauxMax += file_ptr->fdr.caux;
3880
3881 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
3882 file_ptr->fdr.issBase = symbolic_header.issMax;
3883 symbolic_header.issMax += file_ptr->fdr.cbSs;
3884 }
3885
3886 #ifndef ALIGN_SYMTABLE_OFFSET
3887 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
3888 #endif
3889
3890 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3891 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
3892 if (i > 0)
3893 {
3894 symbolic_header.cbLineOffset = file_offset;
3895 file_offset += i;
3896 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3897 }
3898
3899 i = symbolic_header.ioptMax; /* optimization symbols */
3900 if (((long) i) > 0)
3901 {
3902 symbolic_header.cbOptOffset = file_offset;
3903 file_offset += i * sizeof (OPTR);
3904 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3905 }
3906
3907 i = symbolic_header.idnMax; /* dense numbers */
3908 if (i > 0)
3909 {
3910 symbolic_header.cbDnOffset = file_offset;
3911 file_offset += i * sizeof (DNR);
3912 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3913 }
3914
3915 i = symbolic_header.ipdMax; /* procedure tables */
3916 if (i > 0)
3917 {
3918 symbolic_header.cbPdOffset = file_offset;
3919 file_offset += i * sizeof (PDR);
3920 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3921 }
3922
3923 i = symbolic_header.isymMax; /* local symbols */
3924 if (i > 0)
3925 {
3926 symbolic_header.cbSymOffset = file_offset;
3927 file_offset += i * sizeof (SYMR);
3928 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3929 }
3930
3931 i = symbolic_header.iauxMax; /* aux syms. */
3932 if (i > 0)
3933 {
3934 symbolic_header.cbAuxOffset = file_offset;
3935 file_offset += i * sizeof (TIR);
3936 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3937 }
3938
3939 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
3940 if (i > 0)
3941 {
3942 symbolic_header.cbSsOffset = file_offset;
3943 file_offset += i;
3944 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3945 }
3946
3947 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
3948 if (i > 0)
3949 {
3950 symbolic_header.cbSsExtOffset = file_offset;
3951 file_offset += i;
3952 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3953 }
3954
3955 i = symbolic_header.ifdMax; /* file tables */
3956 if (i > 0)
3957 {
3958 symbolic_header.cbFdOffset = file_offset;
3959 file_offset += i * sizeof (FDR);
3960 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3961 }
3962
3963 i = symbolic_header.crfd; /* relative file descriptors */
3964 if (i > 0)
3965 {
3966 symbolic_header.cbRfdOffset = file_offset;
3967 file_offset += i * sizeof (symint_t);
3968 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3969 }
3970
3971 i = symbolic_header.iextMax; /* external symbols */
3972 if (i > 0)
3973 {
3974 symbolic_header.cbExtOffset = file_offset;
3975 file_offset += i * sizeof (EXTR);
3976 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3977 }
3978 }
3979
3980 \f
3981 /* Write out a varray at a given location. */
3982
3983 STATIC void
3984 write_varray (varray_t *vp, /* virtual array */
3985 off_t offset, /* offset to write varray to */
3986 const char *str) /* string to print out when tracing */
3987 {
3988 int num_write, sys_write;
3989 vlinks_t *ptr;
3990
3991 if (vp->num_allocated == 0)
3992 return;
3993
3994 if (debug)
3995 fprintf (stderr, "\twarray\tvp = %p, offset = %7lu, size = %7lu, %s\n",
3996 (void *) vp, (unsigned long) offset,
3997 vp->num_allocated * vp->object_size, str);
3998
3999 if (file_offset != (unsigned long) offset
4000 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
4001 pfatal_with_name (object_name);
4002
4003 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
4004 {
4005 num_write = (ptr->next == (vlinks_t *) 0)
4006 ? vp->objects_last_page * vp->object_size
4007 : vp->objects_per_page * vp->object_size;
4008
4009 sys_write = fwrite (ptr->datum, 1, num_write, object_stream);
4010 if (sys_write <= 0)
4011 pfatal_with_name (object_name);
4012
4013 else if (sys_write != num_write)
4014 fatal ("wrote %d bytes to %s, system returned %d",
4015 num_write,
4016 object_name,
4017 sys_write);
4018
4019 file_offset += num_write;
4020 }
4021 }
4022
4023 \f
4024 /* Write out the symbol table in the object file. */
4025
4026 STATIC void
4027 write_object (void)
4028 {
4029 int sys_write;
4030 efdr_t *file_ptr;
4031 off_t offset;
4032
4033 if (debug)
4034 fprintf (stderr, "\n\twrite\tvp = %p, offset = %7u, size = %7lu, %s\n",
4035 (void *) &symbolic_header, 0,
4036 (unsigned long) sizeof (symbolic_header), "symbolic header");
4037
4038 sys_write = fwrite (&symbolic_header,
4039 1,
4040 sizeof (symbolic_header),
4041 object_stream);
4042
4043 if (sys_write < 0)
4044 pfatal_with_name (object_name);
4045
4046 else if (sys_write != sizeof (symbolic_header))
4047 fatal ("wrote %d bytes to %s, system returned %d",
4048 (int) sizeof (symbolic_header),
4049 object_name,
4050 sys_write);
4051
4052
4053 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4054
4055 if (symbolic_header.cbLine > 0) /* line numbers */
4056 {
4057 long sys_write;
4058
4059 if (file_offset != (unsigned long) symbolic_header.cbLineOffset
4060 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4061 pfatal_with_name (object_name);
4062
4063 if (debug)
4064 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n",
4065 (void *) &orig_linenum, (long) symbolic_header.cbLineOffset,
4066 (long) symbolic_header.cbLine, "Line numbers");
4067
4068 sys_write = fwrite (orig_linenum,
4069 1,
4070 symbolic_header.cbLine,
4071 object_stream);
4072
4073 if (sys_write <= 0)
4074 pfatal_with_name (object_name);
4075
4076 else if (sys_write != symbolic_header.cbLine)
4077 fatal ("wrote %ld bytes to %s, system returned %ld",
4078 (long) symbolic_header.cbLine,
4079 object_name,
4080 sys_write);
4081
4082 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4083 }
4084
4085 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4086 {
4087 long sys_write;
4088 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4089
4090 if (file_offset != (unsigned long) symbolic_header.cbOptOffset
4091 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4092 pfatal_with_name (object_name);
4093
4094 if (debug)
4095 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n",
4096 (void *) &orig_opt_syms, (long) symbolic_header.cbOptOffset,
4097 num_write, "Optimizer symbols");
4098
4099 sys_write = fwrite (orig_opt_syms,
4100 1,
4101 num_write,
4102 object_stream);
4103
4104 if (sys_write <= 0)
4105 pfatal_with_name (object_name);
4106
4107 else if (sys_write != num_write)
4108 fatal ("wrote %ld bytes to %s, system returned %ld",
4109 num_write,
4110 object_name,
4111 sys_write);
4112
4113 file_offset = symbolic_header.cbOptOffset + num_write;
4114 }
4115
4116 if (symbolic_header.idnMax > 0) /* dense numbers */
4117 write_varray (&dense_num, (off_t) symbolic_header.cbDnOffset, "Dense numbers");
4118
4119 if (symbolic_header.ipdMax > 0) /* procedure tables */
4120 {
4121 offset = symbolic_header.cbPdOffset;
4122 for (file_ptr = first_file;
4123 file_ptr != (efdr_t *) 0;
4124 file_ptr = file_ptr->next_file)
4125 {
4126 write_varray (&file_ptr->procs, offset, "Procedure tables");
4127 offset = file_offset;
4128 }
4129 }
4130
4131 if (symbolic_header.isymMax > 0) /* local symbols */
4132 {
4133 offset = symbolic_header.cbSymOffset;
4134 for (file_ptr = first_file;
4135 file_ptr != (efdr_t *) 0;
4136 file_ptr = file_ptr->next_file)
4137 {
4138 write_varray (&file_ptr->symbols, offset, "Local symbols");
4139 offset = file_offset;
4140 }
4141 }
4142
4143 if (symbolic_header.iauxMax > 0) /* aux symbols */
4144 {
4145 offset = symbolic_header.cbAuxOffset;
4146 for (file_ptr = first_file;
4147 file_ptr != (efdr_t *) 0;
4148 file_ptr = file_ptr->next_file)
4149 {
4150 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4151 offset = file_offset;
4152 }
4153 }
4154
4155 if (symbolic_header.issMax > 0) /* local strings */
4156 {
4157 offset = symbolic_header.cbSsOffset;
4158 for (file_ptr = first_file;
4159 file_ptr != (efdr_t *) 0;
4160 file_ptr = file_ptr->next_file)
4161 {
4162 write_varray (&file_ptr->strings, offset, "Local strings");
4163 offset = file_offset;
4164 }
4165 }
4166
4167 if (symbolic_header.issExtMax > 0) /* external strings */
4168 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4169
4170 if (symbolic_header.ifdMax > 0) /* file tables */
4171 {
4172 offset = symbolic_header.cbFdOffset;
4173 if (file_offset != (unsigned long) offset
4174 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
4175 pfatal_with_name (object_name);
4176
4177 file_offset = offset;
4178 for (file_ptr = first_file;
4179 file_ptr != (efdr_t *) 0;
4180 file_ptr = file_ptr->next_file)
4181 {
4182 if (debug)
4183 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n",
4184 (void *) &file_ptr->fdr, file_offset,
4185 (unsigned long) sizeof (FDR), "File header");
4186
4187 sys_write = fwrite (&file_ptr->fdr,
4188 1,
4189 sizeof (FDR),
4190 object_stream);
4191
4192 if (sys_write < 0)
4193 pfatal_with_name (object_name);
4194
4195 else if (sys_write != sizeof (FDR))
4196 fatal ("wrote %d bytes to %s, system returned %d",
4197 (int) sizeof (FDR),
4198 object_name,
4199 sys_write);
4200
4201 file_offset = offset += sizeof (FDR);
4202 }
4203 }
4204
4205 if (symbolic_header.crfd > 0) /* relative file descriptors */
4206 {
4207 long sys_write;
4208 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4209
4210 if (file_offset != (unsigned long) symbolic_header.cbRfdOffset
4211 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4212 pfatal_with_name (object_name);
4213
4214 if (debug)
4215 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n",
4216 (void *) &orig_rfds, (long) symbolic_header.cbRfdOffset,
4217 num_write, "Relative file descriptors");
4218
4219 sys_write = fwrite (orig_rfds,
4220 1,
4221 num_write,
4222 object_stream);
4223
4224 if (sys_write <= 0)
4225 pfatal_with_name (object_name);
4226
4227 else if (sys_write != (long) num_write)
4228 fatal ("wrote %lu bytes to %s, system returned %ld",
4229 num_write,
4230 object_name,
4231 sys_write);
4232
4233 file_offset = symbolic_header.cbRfdOffset + num_write;
4234 }
4235
4236 if (symbolic_header.issExtMax > 0) /* external symbols */
4237 write_varray (&ext_symbols, (off_t) symbolic_header.cbExtOffset, "External symbols");
4238
4239 if (fclose (object_stream) != 0)
4240 pfatal_with_name (object_name);
4241 }
4242
4243 \f
4244 /* Read some bytes at a specified location, and return a pointer. */
4245
4246 STATIC page_t *
4247 read_seek (Size_t size, /* # bytes to read */
4248 off_t offset, /* offset to read at */
4249 const char *str) /* name for tracing */
4250 {
4251 page_t *ptr;
4252 long sys_read = 0;
4253
4254 if (size == 0) /* nothing to read */
4255 return (page_t *) 0;
4256
4257 if (debug)
4258 fprintf (stderr,
4259 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n",
4260 (unsigned long) size, (unsigned long) offset, file_offset, str);
4261
4262 #ifndef MALLOC_CHECK
4263 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4264 #else
4265 ptr = xcalloc (1, size);
4266 #endif
4267
4268 /* If we need to seek, and the distance is nearby, just do some reads,
4269 to speed things up. */
4270 if (file_offset != (unsigned long) offset)
4271 {
4272 symint_t difference = offset - file_offset;
4273
4274 if (difference < 8)
4275 {
4276 char small_buffer[8];
4277
4278 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4279 if (sys_read <= 0)
4280 pfatal_with_name (obj_in_name);
4281
4282 if ((symint_t) sys_read != difference)
4283 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4284 (unsigned long) size,
4285 obj_in_name,
4286 sys_read);
4287 }
4288 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4289 pfatal_with_name (obj_in_name);
4290 }
4291
4292 sys_read = fread (ptr, 1, size, obj_in_stream);
4293 if (sys_read <= 0)
4294 pfatal_with_name (obj_in_name);
4295
4296 if (sys_read != (long) size)
4297 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4298 (unsigned long) size,
4299 obj_in_name,
4300 sys_read);
4301
4302 file_offset = offset + size;
4303
4304 if (file_offset > max_file_offset)
4305 max_file_offset = file_offset;
4306
4307 return ptr;
4308 }
4309
4310 \f
4311 /* Read the existing object file (and copy to the output object file
4312 if it is different from the input object file), and remove the old
4313 symbol table. */
4314
4315 STATIC void
4316 copy_object (void)
4317 {
4318 char buffer[ PAGE_SIZE ];
4319 int sys_read;
4320 int remaining;
4321 int num_write;
4322 int sys_write;
4323 int fd, es;
4324 int delete_ifd = 0;
4325 int *remap_file_number;
4326 struct stat stat_buf;
4327
4328 if (debug)
4329 fprintf (stderr, "\tcopy\n");
4330
4331 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4332 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4333 pfatal_with_name (obj_in_name);
4334
4335 sys_read = fread (&orig_file_header,
4336 1,
4337 sizeof (struct filehdr),
4338 obj_in_stream);
4339
4340 if (sys_read < 0)
4341 pfatal_with_name (obj_in_name);
4342
4343 else if (sys_read == 0 && feof (obj_in_stream))
4344 return; /* create a .T file sans file header */
4345
4346 else if (sys_read < (int) sizeof (struct filehdr))
4347 fatal ("wanted to read %d bytes from %s, system returned %d",
4348 (int) sizeof (struct filehdr),
4349 obj_in_name,
4350 sys_read);
4351
4352
4353 if (orig_file_header.f_nsyms != sizeof (HDRR))
4354 fatal ("%s symbolic header wrong size (%ld bytes, should be %ld)",
4355 input_name, (long) orig_file_header.f_nsyms, (long) sizeof (HDRR));
4356
4357
4358 /* Read in the current symbolic header. */
4359 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4360 pfatal_with_name (input_name);
4361
4362 sys_read = fread (&orig_sym_hdr,
4363 1,
4364 sizeof (orig_sym_hdr),
4365 obj_in_stream);
4366
4367 if (sys_read < 0)
4368 pfatal_with_name (object_name);
4369
4370 else if (sys_read < (int) sizeof (struct filehdr))
4371 fatal ("wanted to read %d bytes from %s, system returned %d",
4372 (int) sizeof (struct filehdr),
4373 obj_in_name,
4374 sys_read);
4375
4376
4377 /* Read in each of the sections if they exist in the object file.
4378 We read things in the order the mips assembler creates the
4379 sections, so in theory no extra seeks are done.
4380
4381 For simplicity sake, round each read up to a page boundary,
4382 we may want to revisit this later.... */
4383
4384 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4385
4386 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4387 orig_linenum = (char *) read_seek (orig_sym_hdr.cbLine,
4388 orig_sym_hdr.cbLineOffset,
4389 "Line numbers");
4390
4391 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4392 orig_procs = (PDR *) read_seek (orig_sym_hdr.ipdMax * sizeof (PDR),
4393 orig_sym_hdr.cbPdOffset,
4394 "Procedure tables");
4395
4396 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4397 orig_local_syms = (SYMR *) read_seek (orig_sym_hdr.isymMax * sizeof (SYMR),
4398 orig_sym_hdr.cbSymOffset,
4399 "Local symbols");
4400
4401 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4402 orig_aux_syms = (AUXU *) read_seek (orig_sym_hdr.iauxMax * sizeof (AUXU),
4403 orig_sym_hdr.cbAuxOffset,
4404 "Aux. symbols");
4405
4406 if (orig_sym_hdr.issMax > 0) /* local strings */
4407 orig_local_strs = (char *) read_seek (orig_sym_hdr.issMax,
4408 orig_sym_hdr.cbSsOffset,
4409 "Local strings");
4410
4411 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4412 orig_ext_strs = (char *) read_seek (orig_sym_hdr.issExtMax,
4413 orig_sym_hdr.cbSsExtOffset,
4414 "External strings");
4415
4416 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4417 orig_files = (FDR *) read_seek (orig_sym_hdr.ifdMax * sizeof (FDR),
4418 orig_sym_hdr.cbFdOffset,
4419 "File tables");
4420
4421 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4422 orig_rfds = (symint_t *) read_seek (orig_sym_hdr.crfd * sizeof (symint_t),
4423 orig_sym_hdr.cbRfdOffset,
4424 "Relative file descriptors");
4425
4426 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4427 orig_ext_syms = (EXTR *) read_seek (orig_sym_hdr.iextMax * sizeof (EXTR),
4428 orig_sym_hdr.cbExtOffset,
4429 "External symbols");
4430
4431 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4432 {
4433 orig_dense = (DNR *) read_seek (orig_sym_hdr.idnMax * sizeof (DNR),
4434 orig_sym_hdr.cbDnOffset,
4435 "Dense numbers");
4436
4437 add_bytes (&dense_num, (char *) orig_dense, orig_sym_hdr.idnMax);
4438 }
4439
4440 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4441 orig_opt_syms = (OPTR *) read_seek (orig_sym_hdr.ioptMax * sizeof (OPTR),
4442 orig_sym_hdr.cbOptOffset,
4443 "Optimizer symbols");
4444
4445
4446
4447 /* The symbol table should be last. */
4448 if (max_file_offset != (unsigned long) stat_buf.st_size)
4449 fatal ("symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4450 max_file_offset,
4451 (long) stat_buf.st_size);
4452
4453
4454 /* If the first original file descriptor is a dummy which the assembler
4455 put out, but there are no symbols in it, skip it now. */
4456 if (orig_sym_hdr.ifdMax > 1
4457 && orig_files->csym == 2
4458 && orig_files->caux == 0)
4459 {
4460 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4461 char *suffix = strrchr (filename, '.');
4462
4463 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4464 delete_ifd = 1;
4465 }
4466
4467
4468 /* Create array to map original file numbers to the new file numbers
4469 (in case there are duplicate filenames, we collapse them into one
4470 file section, the MIPS assembler may or may not collapse them). */
4471
4472 remap_file_number = alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4473
4474 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4475 {
4476 FDR *fd_ptr = ORIG_FILES (fd);
4477 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4478
4479 /* file support itself. */
4480 add_file (filename, filename + strlen (filename));
4481 remap_file_number[fd] = cur_file_ptr->file_index;
4482 }
4483
4484 if (delete_ifd > 0) /* just in case */
4485 remap_file_number[0] = remap_file_number[1];
4486
4487
4488 /* Loop, adding each of the external symbols. These must be in
4489 order or otherwise we would have to change the relocation
4490 entries. We don't just call add_bytes, because we need to have
4491 the names put into the external hash table. We set the type to
4492 'void' for now, and parse_def will fill in the correct type if it
4493 is in the symbol table. We must add the external symbols before
4494 the locals, since the locals do lookups against the externals. */
4495
4496 if (debug)
4497 fprintf (stderr, "\tehash\n");
4498
4499 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4500 {
4501 EXTR *eptr = orig_ext_syms + es;
4502 int ifd = eptr->ifd;
4503
4504 (void) add_ext_symbol (eptr, ((long) ifd < orig_sym_hdr.ifdMax)
4505 ? remap_file_number[ ifd ] : ifd );
4506 }
4507
4508
4509 /* For each of the files in the object file, copy the symbols, and such
4510 into the varrays for the new object file. */
4511
4512 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4513 {
4514 FDR *fd_ptr = ORIG_FILES (fd);
4515 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4516 SYMR *sym_start;
4517 SYMR *sym;
4518 SYMR *sym_end_p1;
4519 PDR *proc_start;
4520 PDR *proc;
4521 PDR *proc_end_p1;
4522
4523 /* file support itself. */
4524 add_file (filename, filename + strlen (filename));
4525 cur_file_ptr->orig_fdr = fd_ptr;
4526
4527 /* Copy stuff that's just passed through (such as line #'s) */
4528 cur_file_ptr->fdr.adr = fd_ptr->adr;
4529 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4530 cur_file_ptr->fdr.cline = fd_ptr->cline;
4531 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4532 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4533 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4534 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4535 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4536 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4537 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4538
4539 if (debug)
4540 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4541
4542 /* For each of the static and global symbols defined, add them
4543 to the hash table of original symbols, so we can look up
4544 their values. */
4545
4546 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4547 sym_end_p1 = sym_start + fd_ptr->csym;
4548 for (sym = sym_start; sym < sym_end_p1; sym++)
4549 {
4550 switch ((st_t) sym->st)
4551 {
4552 default:
4553 break;
4554
4555 case st_Global:
4556 case st_Static:
4557 case st_Label:
4558 case st_Proc:
4559 case st_StaticProc:
4560 {
4561 auto symint_t hash_index;
4562 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4563 Size_t len = strlen (str);
4564 shash_t *shash_ptr = hash_string (str,
4565 (Ptrdiff_t) len,
4566 &orig_str_hash[0],
4567 &hash_index);
4568
4569 if (shash_ptr != (shash_t *) 0)
4570 error ("internal error, %s is already in original symbol table", str);
4571
4572 else
4573 {
4574 shash_ptr = allocate_shash ();
4575 shash_ptr->next = orig_str_hash[hash_index];
4576 orig_str_hash[hash_index] = shash_ptr;
4577
4578 shash_ptr->len = len;
4579 shash_ptr->indx = indexNil;
4580 shash_ptr->string = str;
4581 shash_ptr->sym_ptr = sym;
4582 }
4583 }
4584 break;
4585
4586 case st_End:
4587 if ((sc_t) sym->sc == sc_Text)
4588 {
4589 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4590
4591 if (*str != '\0')
4592 {
4593 Size_t len = strlen (str);
4594 shash_t *shash_ptr = hash_string (str,
4595 (Ptrdiff_t) len,
4596 &orig_str_hash[0],
4597 (symint_t *) 0);
4598
4599 if (shash_ptr != (shash_t *) 0)
4600 shash_ptr->end_ptr = sym;
4601 }
4602 }
4603 break;
4604
4605 }
4606 }
4607
4608 if (debug)
4609 {
4610 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4611 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4612 }
4613
4614 /* Go through each of the procedures in this file, and add the
4615 procedure pointer to the hash entry for the given name. */
4616
4617 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4618 proc_end_p1 = proc_start + fd_ptr->cpd;
4619 for (proc = proc_start; proc < proc_end_p1; proc++)
4620 {
4621 SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4622 char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4623 Size_t len = strlen (str);
4624 shash_t *shash_ptr = hash_string (str,
4625 (Ptrdiff_t) len,
4626 &orig_str_hash[0],
4627 (symint_t *) 0);
4628
4629 if (shash_ptr == (shash_t *) 0)
4630 error ("internal error, function %s is not in original symbol table", str);
4631
4632 else
4633 shash_ptr->proc_ptr = proc;
4634 }
4635
4636 if (debug)
4637 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4638
4639 }
4640 cur_file_ptr = first_file;
4641
4642
4643 /* Copy all of the object file up to the symbol table. Originally
4644 we were going to use ftruncate, but that doesn't seem to work
4645 on Ultrix 3.1.... */
4646
4647 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4648 pfatal_with_name (obj_in_name);
4649
4650 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4651 pfatal_with_name (object_name);
4652
4653 for (remaining = orig_file_header.f_symptr;
4654 remaining > 0;
4655 remaining -= num_write)
4656 {
4657 num_write
4658 = (remaining <= (int) sizeof (buffer))
4659 ? remaining : (int) sizeof (buffer);
4660 sys_read = fread (buffer, 1, num_write, obj_in_stream);
4661 if (sys_read <= 0)
4662 pfatal_with_name (obj_in_name);
4663
4664 else if (sys_read != num_write)
4665 fatal ("wanted to read %d bytes from %s, system returned %d",
4666 num_write,
4667 obj_in_name,
4668 sys_read);
4669
4670 sys_write = fwrite (buffer, 1, num_write, object_stream);
4671 if (sys_write <= 0)
4672 pfatal_with_name (object_name);
4673
4674 else if (sys_write != num_write)
4675 fatal ("wrote %d bytes to %s, system returned %d",
4676 num_write,
4677 object_name,
4678 sys_write);
4679 }
4680 }
4681
4682 \f
4683 /* Ye olde main program. */
4684
4685 extern int main (int, char **);
4686
4687 int
4688 main (int argc, char **argv)
4689 {
4690 int iflag = 0;
4691 char *p = strrchr (argv[0], '/');
4692 char *num_end;
4693 int option;
4694 int i;
4695
4696 progname = (p != 0) ? p+1 : argv[0];
4697
4698 (void) signal (SIGSEGV, catch_signal);
4699 (void) signal (SIGBUS, catch_signal);
4700 (void) signal (SIGABRT, catch_signal);
4701
4702 #if !defined(__SABER__) && !defined(lint)
4703 if (sizeof (efdr_t) > PAGE_USIZE)
4704 fatal ("efdr_t has a sizeof %d bytes, when it should be less than %d",
4705 (int) sizeof (efdr_t),
4706 (int) PAGE_USIZE);
4707
4708 if (sizeof (page_t) != PAGE_USIZE)
4709 fatal ("page_t has a sizeof %d bytes, when it should be %d",
4710 (int) sizeof (page_t),
4711 (int) PAGE_USIZE);
4712
4713 #endif
4714
4715 alloc_counts[ alloc_type_none ].alloc_name = "none";
4716 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4717 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4718 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4719 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4720 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4721 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4722 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4723 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4724
4725 int_type_info = type_info_init;
4726 int_type_info.basic_type = bt_Int;
4727
4728 void_type_info = type_info_init;
4729 void_type_info.basic_type = bt_Void;
4730
4731 while ((option = getopt_long (argc, argv, "d:i:I:o:v", options, NULL)) != -1)
4732 switch (option)
4733 {
4734 default:
4735 had_errors++;
4736 break;
4737
4738 case 'd':
4739 debug = strtol (optarg, &num_end, 0);
4740 if ((unsigned) debug > 4 || num_end == optarg)
4741 had_errors++;
4742
4743 break;
4744
4745 case 'I':
4746 if (rename_output || obj_in_name != (char *) 0)
4747 had_errors++;
4748 else
4749 rename_output = 1;
4750
4751 /* Fall through to 'i' case. */
4752
4753 case 'i':
4754 if (obj_in_name == (char *) 0)
4755 {
4756 obj_in_name = optarg;
4757 iflag++;
4758 }
4759 else
4760 had_errors++;
4761 break;
4762
4763 case 'o':
4764 if (object_name == (char *) 0)
4765 object_name = optarg;
4766 else
4767 had_errors++;
4768 break;
4769
4770 case 'v':
4771 verbose++;
4772 break;
4773
4774 case 'V':
4775 version++;
4776 break;
4777 }
4778
4779 if (version)
4780 {
4781 printf (_("mips-tfile %s%s\n"), pkgversion_string, version_string);
4782 fputs ("Copyright (C) 2008 Free Software Foundation, Inc.\n", stdout);
4783 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
4784 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
4785 stdout);
4786 exit (0);
4787 }
4788
4789 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4790 obj_in_name = argv[--argc];
4791
4792 if (object_name == (char *) 0 && optind <= argc - 2)
4793 object_name = argv[--argc];
4794
4795 /* If there is an output name, but no input name use
4796 the same file for both, deleting the name between
4797 opening it for input and opening it for output. */
4798 if (obj_in_name == (char *) 0 && object_name != (char *) 0)
4799 {
4800 obj_in_name = object_name;
4801 delete_input = 1;
4802 }
4803
4804 if (optind != argc - 1)
4805 had_errors++;
4806
4807 if (verbose || had_errors)
4808 {
4809 fprintf (stderr, _("mips-tfile (GCC) %s"), version_string);
4810 #ifdef TARGET_VERSION
4811 TARGET_VERSION;
4812 #endif
4813 fputc ('\n', stderr);
4814 }
4815
4816 if (object_name == (char *) 0 || had_errors)
4817 {
4818 fprintf (stderr, _("Calling Sequence:\n"));
4819 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4820 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4821 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n"));
4822 fprintf (stderr, "\n");
4823 fprintf (stderr, _("Debug levels are:\n"));
4824 fprintf (stderr, _(" 1\tGeneral debug + trace functions/blocks.\n"));
4825 fprintf (stderr, _(" 2\tDebug level 1 + trace externals.\n"));
4826 fprintf (stderr, _(" 3\tDebug level 2 + trace all symbols.\n"));
4827 fprintf (stderr, _(" 4\tDebug level 3 + trace memory allocations.\n"));
4828 return 1;
4829 }
4830
4831 if (obj_in_name == (char *) 0)
4832 obj_in_name = object_name;
4833
4834 if (rename_output && rename (object_name, obj_in_name) != 0)
4835 {
4836 char *buffer = (char *) allocate_multiple_pages (4);
4837 int len;
4838 int len2;
4839 int in_fd;
4840 int out_fd;
4841
4842 /* Rename failed, copy input file */
4843 in_fd = open (object_name, O_RDONLY, 0666);
4844 if (in_fd < 0)
4845 pfatal_with_name (object_name);
4846
4847 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4848 if (out_fd < 0)
4849 pfatal_with_name (obj_in_name);
4850
4851 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4852 {
4853 len2 = write (out_fd, buffer, len);
4854 if (len2 < 0)
4855 pfatal_with_name (object_name);
4856
4857 if (len != len2)
4858 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4859 }
4860
4861 free_multiple_pages ((page_t *) buffer, 4);
4862
4863 if (len < 0)
4864 pfatal_with_name (object_name);
4865
4866 if (close (in_fd) < 0)
4867 pfatal_with_name (object_name);
4868
4869 if (close (out_fd) < 0)
4870 pfatal_with_name (obj_in_name);
4871 }
4872
4873 /* Must open input before output, since the output may be the same file, and
4874 we need to get the input handle before truncating it. */
4875 obj_in_stream = fopen (obj_in_name, "r");
4876 if (obj_in_stream == (FILE *) 0)
4877 pfatal_with_name (obj_in_name);
4878
4879 if (delete_input && unlink (obj_in_name) != 0)
4880 pfatal_with_name (obj_in_name);
4881
4882 object_stream = fopen (object_name, "w");
4883 if (object_stream == (FILE *) 0)
4884 pfatal_with_name (object_name);
4885
4886 if (strcmp (argv[optind], "-") != 0)
4887 {
4888 input_name = argv[optind];
4889 if (freopen (argv[optind], "r", stdin) != stdin)
4890 pfatal_with_name (argv[optind]);
4891 }
4892
4893 copy_object (); /* scan & copy object file */
4894 parse_input (); /* scan all of input */
4895
4896 update_headers (); /* write out tfile */
4897 write_object ();
4898
4899 if (debug)
4900 {
4901 fprintf (stderr, "\n\tAllocation summary:\n\n");
4902 for (i = (int) alloc_type_none; i < (int) alloc_type_last; i++)
4903 if (alloc_counts[i].total_alloc)
4904 {
4905 fprintf (stderr,
4906 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
4907 alloc_counts[i].alloc_name,
4908 alloc_counts[i].total_alloc,
4909 alloc_counts[i].total_free,
4910 alloc_counts[i].total_pages);
4911 }
4912 }
4913
4914 return (had_errors) ? 1 : 0;
4915 }
4916
4917 \f
4918 /* Catch a signal and exit without dumping core. */
4919
4920 STATIC void
4921 catch_signal (int signum)
4922 {
4923 (void) signal (signum, SIG_DFL); /* just in case... */
4924 fatal ("%s", strsignal (signum));
4925 }
4926
4927 /* Print a fatal error message. NAME is the text.
4928 Also include a system error message based on `errno'. */
4929
4930 void
4931 pfatal_with_name (const char *msg)
4932 {
4933 int save_errno = errno; /* just in case.... */
4934 if (line_number > 0)
4935 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
4936 else
4937 fprintf (stderr, "%s:", progname);
4938
4939 errno = save_errno;
4940 if (errno == 0)
4941 fprintf (stderr, "[errno = 0] %s\n", msg);
4942 else
4943 perror (msg);
4944
4945 exit (1);
4946 }
4947
4948 \f
4949 /* Procedure to die with an out of bounds error message. It has
4950 type int, so it can be used with an ?: expression within the
4951 ORIG_xxx macros, but the function never returns. */
4952
4953 static int
4954 out_of_bounds (symint_t indx, /* index that is out of bounds */
4955 symint_t max, /* maximum index */
4956 const char *str, /* string to print out */
4957 int prog_line) /* line number within mips-tfile.c */
4958 {
4959 if (indx < max) /* just in case */
4960 return 0;
4961
4962 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n",
4963 progname, input_name, line_number, indx, str, max, prog_line);
4964
4965 exit (1);
4966 return 0; /* turn off warning messages */
4967 }
4968
4969 \f
4970 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
4971 like sbrk's behind its back (or sbrk isn't available). If we use
4972 sbrk, we assume it gives us zeroed pages. */
4973
4974 #ifndef MALLOC_CHECK
4975 #ifdef USE_MALLOC
4976
4977 STATIC page_t *
4978 allocate_cluster (Size_t npages)
4979 {
4980 page_t *value = xcalloc (npages, PAGE_USIZE);
4981
4982 if (debug > 3)
4983 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4984
4985 return value;
4986 }
4987
4988 #else /* USE_MALLOC */
4989
4990 STATIC page_t *
4991 allocate_cluster (Size_t npages)
4992 {
4993 page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
4994 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
4995
4996 if (offset != 0) /* align to a page boundary */
4997 {
4998 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
4999 pfatal_with_name ("allocate_cluster");
5000
5001 ptr = (page_t *) (((char *) ptr) + PAGE_SIZE - offset);
5002 }
5003
5004 if (sbrk (npages * PAGE_USIZE) == (char *) -1)
5005 pfatal_with_name ("allocate_cluster");
5006
5007 if (debug > 3)
5008 fprintf (stderr, "\talloc\tnpages = %lu, value = %p\n",
5009 (unsigned long) npages, (void *) ptr);
5010
5011 return ptr;
5012 }
5013
5014 #endif /* USE_MALLOC */
5015
5016
5017 static page_t *cluster_ptr = NULL;
5018 static unsigned pages_left = 0;
5019
5020 #endif /* MALLOC_CHECK */
5021
5022
5023 /* Allocate some pages (which is initialized to 0). */
5024
5025 STATIC page_t *
5026 allocate_multiple_pages (Size_t npages)
5027 {
5028 #ifndef MALLOC_CHECK
5029 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5030 {
5031 pages_left = MAX_CLUSTER_PAGES;
5032 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5033 }
5034
5035 if (npages <= pages_left)
5036 {
5037 page_t *ptr = cluster_ptr;
5038 cluster_ptr += npages;
5039 pages_left -= npages;
5040 return ptr;
5041 }
5042
5043 return allocate_cluster (npages);
5044
5045 #else /* MALLOC_CHECK */
5046 return xcalloc (npages, PAGE_SIZE);
5047
5048 #endif /* MALLOC_CHECK */
5049 }
5050
5051
5052 /* Release some pages. */
5053
5054 STATIC void
5055 free_multiple_pages (page_t *page_ptr, Size_t npages)
5056 {
5057 #ifndef MALLOC_CHECK
5058 if (pages_left == 0)
5059 {
5060 cluster_ptr = page_ptr;
5061 pages_left = npages;
5062 }
5063
5064 else if ((page_ptr + npages) == cluster_ptr)
5065 {
5066 cluster_ptr -= npages;
5067 pages_left += npages;
5068 }
5069
5070 /* otherwise the page is not freed. If more than call is
5071 done, we probably should worry about it, but at present,
5072 the free pages is done right after an allocate. */
5073
5074 #else /* MALLOC_CHECK */
5075 free (page_ptr);
5076
5077 #endif /* MALLOC_CHECK */
5078 }
5079
5080
5081 /* Allocate one page (which is initialized to 0). */
5082
5083 STATIC page_t *
5084 allocate_page (void)
5085 {
5086 #ifndef MALLOC_CHECK
5087 if (pages_left == 0)
5088 {
5089 pages_left = MAX_CLUSTER_PAGES;
5090 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5091 }
5092
5093 pages_left--;
5094 return cluster_ptr++;
5095
5096 #else /* MALLOC_CHECK */
5097 return xcalloc (1, PAGE_SIZE);
5098
5099 #endif /* MALLOC_CHECK */
5100 }
5101
5102 \f
5103 /* Allocate scoping information. */
5104
5105 STATIC scope_t *
5106 allocate_scope (void)
5107 {
5108 scope_t *ptr;
5109 static scope_t initial_scope;
5110
5111 #ifndef MALLOC_CHECK
5112 ptr = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5113 if (ptr != (scope_t *) 0)
5114 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr->free;
5115
5116 else
5117 {
5118 int unallocated = alloc_counts[ (int) alloc_type_scope ].unallocated;
5119 page_t *cur_page = alloc_counts[ (int) alloc_type_scope ].cur_page;
5120
5121 if (unallocated == 0)
5122 {
5123 unallocated = PAGE_SIZE / sizeof (scope_t);
5124 alloc_counts[ (int) alloc_type_scope ].cur_page = cur_page = allocate_page ();
5125 alloc_counts[ (int) alloc_type_scope ].total_pages++;
5126 }
5127
5128 ptr = &cur_page->scope[ --unallocated ];
5129 alloc_counts[ (int) alloc_type_scope ].unallocated = unallocated;
5130 }
5131
5132 #else
5133 ptr = xmalloc (sizeof (scope_t));
5134
5135 #endif
5136
5137 alloc_counts[ (int) alloc_type_scope ].total_alloc++;
5138 *ptr = initial_scope;
5139 return ptr;
5140 }
5141
5142 /* Free scoping information. */
5143
5144 STATIC void
5145 free_scope (scope_t *ptr)
5146 {
5147 alloc_counts[ (int) alloc_type_scope ].total_free++;
5148
5149 #ifndef MALLOC_CHECK
5150 ptr->free = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5151 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr;
5152
5153 #else
5154 free (ptr);
5155 #endif
5156
5157 }
5158
5159 \f
5160 /* Allocate links for pages in a virtual array. */
5161
5162 STATIC vlinks_t *
5163 allocate_vlinks (void)
5164 {
5165 vlinks_t *ptr;
5166 static vlinks_t initial_vlinks;
5167
5168 #ifndef MALLOC_CHECK
5169 int unallocated = alloc_counts[ (int) alloc_type_vlinks ].unallocated;
5170 page_t *cur_page = alloc_counts[ (int) alloc_type_vlinks ].cur_page;
5171
5172 if (unallocated == 0)
5173 {
5174 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5175 alloc_counts[ (int) alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5176 alloc_counts[ (int) alloc_type_vlinks ].total_pages++;
5177 }
5178
5179 ptr = &cur_page->vlinks[ --unallocated ];
5180 alloc_counts[ (int) alloc_type_vlinks ].unallocated = unallocated;
5181
5182 #else
5183 ptr = xmalloc (sizeof (vlinks_t));
5184
5185 #endif
5186
5187 alloc_counts[ (int) alloc_type_vlinks ].total_alloc++;
5188 *ptr = initial_vlinks;
5189 return ptr;
5190 }
5191
5192 \f
5193 /* Allocate string hash buckets. */
5194
5195 STATIC shash_t *
5196 allocate_shash (void)
5197 {
5198 shash_t *ptr;
5199 static shash_t initial_shash;
5200
5201 #ifndef MALLOC_CHECK
5202 int unallocated = alloc_counts[ (int) alloc_type_shash ].unallocated;
5203 page_t *cur_page = alloc_counts[ (int) alloc_type_shash ].cur_page;
5204
5205 if (unallocated == 0)
5206 {
5207 unallocated = PAGE_SIZE / sizeof (shash_t);
5208 alloc_counts[ (int) alloc_type_shash ].cur_page = cur_page = allocate_page ();
5209 alloc_counts[ (int) alloc_type_shash ].total_pages++;
5210 }
5211
5212 ptr = &cur_page->shash[ --unallocated ];
5213 alloc_counts[ (int) alloc_type_shash ].unallocated = unallocated;
5214
5215 #else
5216 ptr = xmalloc (sizeof (shash_t));
5217
5218 #endif
5219
5220 alloc_counts[ (int) alloc_type_shash ].total_alloc++;
5221 *ptr = initial_shash;
5222 return ptr;
5223 }
5224
5225 \f
5226 /* Allocate type hash buckets. */
5227
5228 STATIC thash_t *
5229 allocate_thash (void)
5230 {
5231 thash_t *ptr;
5232 static thash_t initial_thash;
5233
5234 #ifndef MALLOC_CHECK
5235 int unallocated = alloc_counts[ (int) alloc_type_thash ].unallocated;
5236 page_t *cur_page = alloc_counts[ (int) alloc_type_thash ].cur_page;
5237
5238 if (unallocated == 0)
5239 {
5240 unallocated = PAGE_SIZE / sizeof (thash_t);
5241 alloc_counts[ (int) alloc_type_thash ].cur_page = cur_page = allocate_page ();
5242 alloc_counts[ (int) alloc_type_thash ].total_pages++;
5243 }
5244
5245 ptr = &cur_page->thash[ --unallocated ];
5246 alloc_counts[ (int) alloc_type_thash ].unallocated = unallocated;
5247
5248 #else
5249 ptr = xmalloc (sizeof (thash_t));
5250
5251 #endif
5252
5253 alloc_counts[ (int) alloc_type_thash ].total_alloc++;
5254 *ptr = initial_thash;
5255 return ptr;
5256 }
5257
5258 \f
5259 /* Allocate structure, union, or enum tag information. */
5260
5261 STATIC tag_t *
5262 allocate_tag (void)
5263 {
5264 tag_t *ptr;
5265 static tag_t initial_tag;
5266
5267 #ifndef MALLOC_CHECK
5268 ptr = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5269 if (ptr != (tag_t *) 0)
5270 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr->free;
5271
5272 else
5273 {
5274 int unallocated = alloc_counts[ (int) alloc_type_tag ].unallocated;
5275 page_t *cur_page = alloc_counts[ (int) alloc_type_tag ].cur_page;
5276
5277 if (unallocated == 0)
5278 {
5279 unallocated = PAGE_SIZE / sizeof (tag_t);
5280 alloc_counts[ (int) alloc_type_tag ].cur_page = cur_page = allocate_page ();
5281 alloc_counts[ (int) alloc_type_tag ].total_pages++;
5282 }
5283
5284 ptr = &cur_page->tag[ --unallocated ];
5285 alloc_counts[ (int) alloc_type_tag ].unallocated = unallocated;
5286 }
5287
5288 #else
5289 ptr = xmalloc (sizeof (tag_t));
5290
5291 #endif
5292
5293 alloc_counts[ (int) alloc_type_tag ].total_alloc++;
5294 *ptr = initial_tag;
5295 return ptr;
5296 }
5297
5298 /* Free scoping information. */
5299
5300 STATIC void
5301 free_tag (tag_t *ptr)
5302 {
5303 alloc_counts[ (int) alloc_type_tag ].total_free++;
5304
5305 #ifndef MALLOC_CHECK
5306 ptr->free = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5307 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr;
5308
5309 #else
5310 free (ptr);
5311 #endif
5312
5313 }
5314
5315 \f
5316 /* Allocate forward reference to a yet unknown tag. */
5317
5318 STATIC forward_t *
5319 allocate_forward (void)
5320 {
5321 forward_t *ptr;
5322 static forward_t initial_forward;
5323
5324 #ifndef MALLOC_CHECK
5325 ptr = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5326 if (ptr != (forward_t *) 0)
5327 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr->free;
5328
5329 else
5330 {
5331 int unallocated = alloc_counts[ (int) alloc_type_forward ].unallocated;
5332 page_t *cur_page = alloc_counts[ (int) alloc_type_forward ].cur_page;
5333
5334 if (unallocated == 0)
5335 {
5336 unallocated = PAGE_SIZE / sizeof (forward_t);
5337 alloc_counts[ (int) alloc_type_forward ].cur_page = cur_page = allocate_page ();
5338 alloc_counts[ (int) alloc_type_forward ].total_pages++;
5339 }
5340
5341 ptr = &cur_page->forward[ --unallocated ];
5342 alloc_counts[ (int) alloc_type_forward ].unallocated = unallocated;
5343 }
5344
5345 #else
5346 ptr = xmalloc (sizeof (forward_t));
5347
5348 #endif
5349
5350 alloc_counts[ (int) alloc_type_forward ].total_alloc++;
5351 *ptr = initial_forward;
5352 return ptr;
5353 }
5354
5355 /* Free scoping information. */
5356
5357 STATIC void
5358 free_forward (forward_t *ptr)
5359 {
5360 alloc_counts[ (int) alloc_type_forward ].total_free++;
5361
5362 #ifndef MALLOC_CHECK
5363 ptr->free = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5364 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr;
5365
5366 #else
5367 free (ptr);
5368 #endif
5369
5370 }
5371
5372 \f
5373 /* Allocate head of type hash list. */
5374
5375 STATIC thead_t *
5376 allocate_thead (void)
5377 {
5378 thead_t *ptr;
5379 static thead_t initial_thead;
5380
5381 #ifndef MALLOC_CHECK
5382 ptr = alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5383 if (ptr != (thead_t *) 0)
5384 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr->free;
5385
5386 else
5387 {
5388 int unallocated = alloc_counts[ (int) alloc_type_thead ].unallocated;
5389 page_t *cur_page = alloc_counts[ (int) alloc_type_thead ].cur_page;
5390
5391 if (unallocated == 0)
5392 {
5393 unallocated = PAGE_SIZE / sizeof (thead_t);
5394 alloc_counts[ (int) alloc_type_thead ].cur_page = cur_page = allocate_page ();
5395 alloc_counts[ (int) alloc_type_thead ].total_pages++;
5396 }
5397
5398 ptr = &cur_page->thead[ --unallocated ];
5399 alloc_counts[ (int) alloc_type_thead ].unallocated = unallocated;
5400 }
5401
5402 #else
5403 ptr = xmalloc (sizeof (thead_t));
5404
5405 #endif
5406
5407 alloc_counts[ (int) alloc_type_thead ].total_alloc++;
5408 *ptr = initial_thead;
5409 return ptr;
5410 }
5411
5412 /* Free scoping information. */
5413
5414 STATIC void
5415 free_thead (thead_t *ptr)
5416 {
5417 alloc_counts[ (int) alloc_type_thead ].total_free++;
5418
5419 #ifndef MALLOC_CHECK
5420 ptr->free = (thead_t *) alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5421 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr;
5422
5423 #else
5424 free (ptr);
5425 #endif
5426
5427 }
5428
5429 #endif /* MIPS_DEBUGGING_INFO */
5430
5431 \f
5432 /* Output an error message and exit. */
5433
5434 void
5435 fatal (const char *format, ...)
5436 {
5437 va_list ap;
5438
5439 va_start (ap, format);
5440
5441 if (line_number > 0)
5442 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5443 else
5444 fprintf (stderr, "%s:", progname);
5445
5446 vfprintf (stderr, format, ap);
5447 va_end (ap);
5448 fprintf (stderr, "\n");
5449 if (line_number > 0)
5450 fprintf (stderr, "line:\t%s\n", cur_line_start);
5451
5452 saber_stop ();
5453 exit (1);
5454 }
5455
5456 void
5457 error (const char *format, ...)
5458 {
5459 va_list ap;
5460
5461 va_start (ap, format);
5462
5463 if (line_number > 0)
5464 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5465 else
5466 fprintf (stderr, "%s:", progname);
5467
5468 vfprintf (stderr, format, ap);
5469 fprintf (stderr, "\n");
5470 if (line_number > 0)
5471 fprintf (stderr, "line:\t%s\n", cur_line_start);
5472
5473 had_errors++;
5474 va_end (ap);
5475
5476 saber_stop ();
5477 }
5478
5479 /* More 'friendly' abort that prints the line and file. */
5480
5481 void
5482 fancy_abort (const char *file, int line, const char *func)
5483 {
5484 fatal ("abort in %s, at %s:%d", func, file, line);
5485 }
5486 \f
5487
5488 /* When `malloc.c' is compiled with `rcheck' defined,
5489 it calls this function to report clobberage. */
5490
5491 void
5492 botch (const char *s)
5493 {
5494 fatal ("%s", s);
5495 }
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