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1.1 root 1: /* Update the symbol table (the .T file) in a MIPS object to
2: contain debugging information specified by the GNU compiler
3: in the form of comments (the mips assembler does not support
4: assembly access to debug information).
5: Contributed by: Michael Meissner, [email protected]
6: Copyright (C) 1991, 1993 Free Software Foundation, Inc.
7:
8: This file is part of GNU CC.
9:
10: GNU CC is free software; you can redistribute it and/or modify
11: it under the terms of the GNU General Public License as published by
12: the Free Software Foundation; either version 2, or (at your option)
13: any later version.
14:
15: GNU CC is distributed in the hope that it will be useful,
16: but WITHOUT ANY WARRANTY; without even the implied warranty of
17: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: GNU General Public License for more details.
19:
20: You should have received a copy of the GNU General Public License
21: along with GNU CC; see the file COPYING. If not, write to
22: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
23:
24:
25: /* Here is a brief description of the MIPS ECOFF symbol table. The
26: MIPS symbol table has the following pieces:
27:
28: Symbolic Header
29: |
30: +-- Auxiliary Symbols
31: |
32: +-- Dense number table
33: |
34: +-- Optimizer Symbols
35: |
36: +-- External Strings
37: |
38: +-- External Symbols
39: |
40: +-- Relative file descriptors
41: |
42: +-- File table
43: |
44: +-- Procedure table
45: |
46: +-- Line number table
47: |
48: +-- Local Strings
49: |
50: +-- Local Symbols
51:
52: The symbolic header points to each of the other tables, and also
53: contains the number of entries. It also contains a magic number
54: and MIPS compiler version number, such as 2.0.
55:
56: The auxiliary table is a series of 32 bit integers, that are
57: referenced as needed from the local symbol table. Unlike standard
58: COFF, the aux. information does not follow the symbol that uses
59: it, but rather is a separate table. In theory, this would allow
60: the MIPS compilers to collapse duplicate aux. entries, but I've not
61: noticed this happening with the 1.31 compiler suite. The different
62: types of aux. entries are:
63:
64: 1) dnLow: Low bound on array dimension.
65:
66: 2) dnHigh: High bound on array dimension.
67:
68: 3) isym: Index to the local symbol which is the start of the
69: function for the end of function first aux. entry.
70:
71: 4) width: Width of structures and bitfields.
72:
73: 5) count: Count of ranges for variant part.
74:
75: 6) rndx: A relative index into the symbol table. The relative
76: index field has two parts: rfd which is a pointer into the
77: relative file index table or ST_RFDESCAPE which says the next
78: aux. entry is the file number, and index: which is the pointer
79: into the local symbol within a given file table. This is for
80: things like references to types defined in another file.
81:
82: 7) Type information: This is like the COFF type bits, except it
83: is 32 bits instead of 16; they still have room to add new
84: basic types; and they can handle more than 6 levels of array,
85: pointer, function, etc. Each type information field contains
86: the following structure members:
87:
88: a) fBitfield: a bit that says this is a bitfield, and the
89: size in bits follows as the next aux. entry.
90:
91: b) continued: a bit that says the next aux. entry is a
92: continuation of the current type information (in case
93: there are more than 6 levels of array/ptr/function).
94:
95: c) bt: an integer containing the base type before adding
96: array, pointer, function, etc. qualifiers. The
97: current base types that I have documentation for are:
98:
99: btNil -- undefined
100: btAdr -- address - integer same size as ptr
101: btChar -- character
102: btUChar -- unsigned character
103: btShort -- short
104: btUShort -- unsigned short
105: btInt -- int
106: btUInt -- unsigned int
107: btLong -- long
108: btULong -- unsigned long
109: btFloat -- float (real)
110: btDouble -- Double (real)
111: btStruct -- Structure (Record)
112: btUnion -- Union (variant)
113: btEnum -- Enumerated
114: btTypedef -- defined via a typedef isymRef
115: btRange -- subrange of int
116: btSet -- pascal sets
117: btComplex -- fortran complex
118: btDComplex -- fortran double complex
119: btIndirect -- forward or unnamed typedef
120: btFixedDec -- Fixed Decimal
121: btFloatDec -- Float Decimal
122: btString -- Varying Length Character String
123: btBit -- Aligned Bit String
124: btPicture -- Picture
125: btVoid -- Void (MIPS cc revision >= 2.00)
126:
127: d) tq0 - tq5: type qualifier fields as needed. The
128: current type qualifier fields I have documentation for
129: are:
130:
131: tqNil -- no more qualifiers
132: tqPtr -- pointer
133: tqProc -- procedure
134: tqArray -- array
135: tqFar -- 8086 far pointers
136: tqVol -- volatile
137:
138:
139: The dense number table is used in the front ends, and disappears by
140: the time the .o is created.
141:
142: With the 1.31 compiler suite, the optimization symbols don't seem
143: to be used as far as I can tell.
144:
145: The linker is the first entity that creates the relative file
146: descriptor table, and I believe it is used so that the individual
147: file table pointers don't have to be rewritten when the objects are
148: merged together into the program file.
149:
150: Unlike COFF, the basic symbol & string tables are split into
151: external and local symbols/strings. The relocation information
152: only goes off of the external symbol table, and the debug
153: information only goes off of the internal symbol table. The
154: external symbols can have links to an appropriate file index and
155: symbol within the file to give it the appropriate type information.
156: Because of this, the external symbols are actually larger than the
157: internal symbols (to contain the link information), and contain the
158: local symbol structure as a member, though this member is not the
159: first member of the external symbol structure (!). I suspect this
160: split is to make strip easier to deal with.
161:
162: Each file table has offsets for where the line numbers, local
163: strings, local symbols, and procedure table starts from within the
164: global tables, and the indexs are reset to 0 for each of those
165: tables for the file.
166:
167: The procedure table contains the binary equivalents of the .ent
168: (start of the function address), .frame (what register is the
169: virtual frame pointer, constant offset from the register to obtain
170: the VFP, and what register holds the return address), .mask/.fmask
171: (bitmask of saved registers, and where the first register is stored
172: relative to the VFP) assembler directives. It also contains the
173: low and high bounds of the line numbers if debugging is turned on.
174:
175: The line number table is a compressed form of the normal COFF line
176: table. Each line number entry is either 1 or 3 bytes long, and
177: contains a signed delta from the previous line, and an unsigned
178: count of the number of instructions this statement takes.
179:
180: The local symbol table contains the following fields:
181:
182: 1) iss: index to the local string table giving the name of the
183: symbol.
184:
185: 2) value: value of the symbol (address, register number, etc.).
186:
187: 3) st: symbol type. The current symbol types are:
188:
189: stNil -- Nuthin' special
190: stGlobal -- external symbol
191: stStatic -- static
192: stParam -- procedure argument
193: stLocal -- local variable
194: stLabel -- label
195: stProc -- External Procedure
196: stBlock -- beginning of block
197: stEnd -- end (of anything)
198: stMember -- member (of anything)
199: stTypedef -- type definition
200: stFile -- file name
201: stRegReloc -- register relocation
202: stForward -- forwarding address
203: stStaticProc -- Static procedure
204: stConstant -- const
205:
206: 4) sc: storage class. The current storage classes are:
207:
208: scText -- text symbol
209: scData -- initialized data symbol
210: scBss -- un-initialized data symbol
211: scRegister -- value of symbol is register number
212: scAbs -- value of symbol is absolute
213: scUndefined -- who knows?
214: scCdbLocal -- variable's value is IN se->va.??
215: scBits -- this is a bit field
216: scCdbSystem -- value is IN debugger's address space
217: scRegImage -- register value saved on stack
218: scInfo -- symbol contains debugger information
219: scUserStruct -- addr in struct user for current process
220: scSData -- load time only small data
221: scSBss -- load time only small common
222: scRData -- load time only read only data
223: scVar -- Var parameter (fortranpascal)
224: scCommon -- common variable
225: scSCommon -- small common
226: scVarRegister -- Var parameter in a register
227: scVariant -- Variant record
228: scSUndefined -- small undefined(external) data
229: scInit -- .init section symbol
230:
231: 5) index: pointer to a local symbol or aux. entry.
232:
233:
234:
235: For the following program:
236:
237: #include <stdio.h>
238:
239: main(){
240: printf("Hello World!\n");
241: return 0;
242: }
243:
244: Mips-tdump produces the following information:
245:
246: Global file header:
247: magic number 0x162
248: # sections 2
249: timestamp 645311799, Wed Jun 13 17:16:39 1990
250: symbolic header offset 284
251: symbolic header size 96
252: optional header 56
253: flags 0x0
254:
255: Symbolic header, magic number = 0x7009, vstamp = 1.31:
256:
257: Info Offset Number Bytes
258: ==== ====== ====== =====
259:
260: Line numbers 380 4 4 [13]
261: Dense numbers 0 0 0
262: Procedures Tables 384 1 52
263: Local Symbols 436 16 192
264: Optimization Symbols 0 0 0
265: Auxiliary Symbols 628 39 156
266: Local Strings 784 80 80
267: External Strings 864 144 144
268: File Tables 1008 2 144
269: Relative Files 0 0 0
270: External Symbols 1152 20 320
271:
272: File #0, "hello2.c"
273:
274: Name index = 1 Readin = No
275: Merge = No Endian = LITTLE
276: Debug level = G2 Language = C
277: Adr = 0x00000000
278:
279: Info Start Number Size Offset
280: ==== ===== ====== ==== ======
281: Local strings 0 15 15 784
282: Local symbols 0 6 72 436
283: Line numbers 0 13 13 380
284: Optimization symbols 0 0 0 0
285: Procedures 0 1 52 384
286: Auxiliary symbols 0 14 56 628
287: Relative Files 0 0 0 0
288:
289: There are 6 local symbols, starting at 436
290:
291: Symbol# 0: "hello2.c"
292: End+1 symbol = 6
293: String index = 1
294: Storage class = Text Index = 6
295: Symbol type = File Value = 0
296:
297: Symbol# 1: "main"
298: End+1 symbol = 5
299: Type = int
300: String index = 10
301: Storage class = Text Index = 12
302: Symbol type = Proc Value = 0
303:
304: Symbol# 2: ""
305: End+1 symbol = 4
306: String index = 0
307: Storage class = Text Index = 4
308: Symbol type = Block Value = 8
309:
310: Symbol# 3: ""
311: First symbol = 2
312: String index = 0
313: Storage class = Text Index = 2
314: Symbol type = End Value = 28
315:
316: Symbol# 4: "main"
317: First symbol = 1
318: String index = 10
319: Storage class = Text Index = 1
320: Symbol type = End Value = 52
321:
322: Symbol# 5: "hello2.c"
323: First symbol = 0
324: String index = 1
325: Storage class = Text Index = 0
326: Symbol type = End Value = 0
327:
328: There are 14 auxiliary table entries, starting at 628.
329:
330: * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
331: * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
332: * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
333: * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
334: * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
335: * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
336: * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
337: * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
338: * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
339: * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
340: * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
341: * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
342: #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
343: #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
344:
345: There are 1 procedure descriptor entries, starting at 0.
346:
347: Procedure descriptor 0:
348: Name index = 10 Name = "main"
349: .mask 0x80000000,-4 .fmask 0x00000000,0
350: .frame $29,24,$31
351: Opt. start = -1 Symbols start = 1
352: First line # = 3 Last line # = 6
353: Line Offset = 0 Address = 0x00000000
354:
355: There are 4 bytes holding line numbers, starting at 380.
356: Line 3, delta 0, count 2
357: Line 4, delta 1, count 3
358: Line 5, delta 1, count 2
359: Line 6, delta 1, count 6
360:
361: File #1, "/usr/include/stdio.h"
362:
363: Name index = 1 Readin = No
364: Merge = Yes Endian = LITTLE
365: Debug level = G2 Language = C
366: Adr = 0x00000000
367:
368: Info Start Number Size Offset
369: ==== ===== ====== ==== ======
370: Local strings 15 65 65 799
371: Local symbols 6 10 120 508
372: Line numbers 0 0 0 380
373: Optimization symbols 0 0 0 0
374: Procedures 1 0 0 436
375: Auxiliary symbols 14 25 100 684
376: Relative Files 0 0 0 0
377:
378: There are 10 local symbols, starting at 442
379:
380: Symbol# 0: "/usr/include/stdio.h"
381: End+1 symbol = 10
382: String index = 1
383: Storage class = Text Index = 10
384: Symbol type = File Value = 0
385:
386: Symbol# 1: "_iobuf"
387: End+1 symbol = 9
388: String index = 22
389: Storage class = Info Index = 9
390: Symbol type = Block Value = 20
391:
392: Symbol# 2: "_cnt"
393: Type = int
394: String index = 29
395: Storage class = Info Index = 4
396: Symbol type = Member Value = 0
397:
398: Symbol# 3: "_ptr"
399: Type = ptr to char
400: String index = 34
401: Storage class = Info Index = 15
402: Symbol type = Member Value = 32
403:
404: Symbol# 4: "_base"
405: Type = ptr to char
406: String index = 39
407: Storage class = Info Index = 16
408: Symbol type = Member Value = 64
409:
410: Symbol# 5: "_bufsiz"
411: Type = int
412: String index = 45
413: Storage class = Info Index = 4
414: Symbol type = Member Value = 96
415:
416: Symbol# 6: "_flag"
417: Type = short
418: String index = 53
419: Storage class = Info Index = 3
420: Symbol type = Member Value = 128
421:
422: Symbol# 7: "_file"
423: Type = char
424: String index = 59
425: Storage class = Info Index = 2
426: Symbol type = Member Value = 144
427:
428: Symbol# 8: ""
429: First symbol = 1
430: String index = 0
431: Storage class = Info Index = 1
432: Symbol type = End Value = 0
433:
434: Symbol# 9: "/usr/include/stdio.h"
435: First symbol = 0
436: String index = 1
437: Storage class = Text Index = 0
438: Symbol type = End Value = 0
439:
440: There are 25 auxiliary table entries, starting at 642.
441:
442: * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
443: #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
444: #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
445: * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
446: * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
447: * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
448: * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
449: * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
450: * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
451: * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
452: * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
453: * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
454: * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
455: * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456: * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457: * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458: * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459: * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460: * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461: * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462: * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463: * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464: * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465: * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466: * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467:
468: There are 0 procedure descriptor entries, starting at 1.
469:
470: There are 20 external symbols, starting at 1152
471:
472: Symbol# 0: "_iob"
473: Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
474: String index = 0 Ifd = 1
475: Storage class = Nil Index = 17
476: Symbol type = Global Value = 60
477:
478: Symbol# 1: "fopen"
479: String index = 5 Ifd = 1
480: Storage class = Nil Index = 1048575
481: Symbol type = Proc Value = 0
482:
483: Symbol# 2: "fdopen"
484: String index = 11 Ifd = 1
485: Storage class = Nil Index = 1048575
486: Symbol type = Proc Value = 0
487:
488: Symbol# 3: "freopen"
489: String index = 18 Ifd = 1
490: Storage class = Nil Index = 1048575
491: Symbol type = Proc Value = 0
492:
493: Symbol# 4: "popen"
494: String index = 26 Ifd = 1
495: Storage class = Nil Index = 1048575
496: Symbol type = Proc Value = 0
497:
498: Symbol# 5: "tmpfile"
499: String index = 32 Ifd = 1
500: Storage class = Nil Index = 1048575
501: Symbol type = Proc Value = 0
502:
503: Symbol# 6: "ftell"
504: String index = 40 Ifd = 1
505: Storage class = Nil Index = 1048575
506: Symbol type = Proc Value = 0
507:
508: Symbol# 7: "rewind"
509: String index = 46 Ifd = 1
510: Storage class = Nil Index = 1048575
511: Symbol type = Proc Value = 0
512:
513: Symbol# 8: "setbuf"
514: String index = 53 Ifd = 1
515: Storage class = Nil Index = 1048575
516: Symbol type = Proc Value = 0
517:
518: Symbol# 9: "setbuffer"
519: String index = 60 Ifd = 1
520: Storage class = Nil Index = 1048575
521: Symbol type = Proc Value = 0
522:
523: Symbol# 10: "setlinebuf"
524: String index = 70 Ifd = 1
525: Storage class = Nil Index = 1048575
526: Symbol type = Proc Value = 0
527:
528: Symbol# 11: "fgets"
529: String index = 81 Ifd = 1
530: Storage class = Nil Index = 1048575
531: Symbol type = Proc Value = 0
532:
533: Symbol# 12: "gets"
534: String index = 87 Ifd = 1
535: Storage class = Nil Index = 1048575
536: Symbol type = Proc Value = 0
537:
538: Symbol# 13: "ctermid"
539: String index = 92 Ifd = 1
540: Storage class = Nil Index = 1048575
541: Symbol type = Proc Value = 0
542:
543: Symbol# 14: "cuserid"
544: String index = 100 Ifd = 1
545: Storage class = Nil Index = 1048575
546: Symbol type = Proc Value = 0
547:
548: Symbol# 15: "tempnam"
549: String index = 108 Ifd = 1
550: Storage class = Nil Index = 1048575
551: Symbol type = Proc Value = 0
552:
553: Symbol# 16: "tmpnam"
554: String index = 116 Ifd = 1
555: Storage class = Nil Index = 1048575
556: Symbol type = Proc Value = 0
557:
558: Symbol# 17: "sprintf"
559: String index = 123 Ifd = 1
560: Storage class = Nil Index = 1048575
561: Symbol type = Proc Value = 0
562:
563: Symbol# 18: "main"
564: Type = int
565: String index = 131 Ifd = 0
566: Storage class = Text Index = 1
567: Symbol type = Proc Value = 0
568:
569: Symbol# 19: "printf"
570: String index = 136 Ifd = 0
571: Storage class = Undefined Index = 1048575
572: Symbol type = Proc Value = 0
573:
574: The following auxiliary table entries were unused:
575:
576: #0 0 0x00000000 void
577: #2 8 0x00000008 char
578: #3 16 0x00000010 short
579: #4 24 0x00000018 int
580: #5 32 0x00000020 long
581: #6 40 0x00000028 float
582: #7 44 0x0000002c double
583: #8 12 0x0000000c unsigned char
584: #9 20 0x00000014 unsigned short
585: #10 28 0x0000001c unsigned int
586: #11 36 0x00000024 unsigned long
587: #14 0 0x00000000 void
588: #15 24 0x00000018 int
589: #19 32 0x00000020 long
590: #20 40 0x00000028 float
591: #21 44 0x0000002c double
592: #22 12 0x0000000c unsigned char
593: #23 20 0x00000014 unsigned short
594: #24 28 0x0000001c unsigned int
595: #25 36 0x00000024 unsigned long
596: #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
597:
598: */
599:
600:
601: #include "gvarargs.h"
602: #include "config.h"
603: #include <stdio.h>
604:
605: #ifndef __SABER__
606: #define saber_stop()
607: #endif
608:
609: #ifndef __LINE__
610: #define __LINE__ 0
611: #endif
612:
613: #ifdef __STDC__
614: typedef void *PTR_T;
615: typedef const void *CPTR_T;
616: #define __proto(x) x
617: #else
618:
619: #if defined(_STDIO_H_) || defined(__STDIO_H__) /* Ultrix 4.0, SGI */
620: typedef void *PTR_T;
621: typedef void *CPTR_T;
622:
623: #else
624: typedef char *PTR_T; /* Ultrix 3.1 */
625: typedef char *CPTR_T;
626: #endif
627:
628: #define __proto(x) ()
629: #define const
630: #endif
631:
632: /* Do to size_t being defined in sys/types.h and different
633: in stddef.h, we have to do this by hand..... Note, these
634: types are correct for MIPS based systems, and may not be
635: correct for other systems. Ultrix 4.0 and Silicon Graphics
636: have this fixed, but since the following is correct, and
637: the fact that including stddef.h gets you GCC's version
638: instead of the standard one it's not worth it to fix it. */
639:
640: #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
641: #define Size_t long unsigned int
642: #else
643: #define Size_t unsigned int
644: #endif
645: #define Ptrdiff_t long
646:
647: /* The following might be called from obstack or malloc,
648: so they can't be static. */
649:
650: extern void pfatal_with_name
651: __proto((char *));
652: extern void fancy_abort __proto((void));
653: void botch __proto((const char *));
654: extern PTR_T xmalloc __proto((Size_t));
655: extern PTR_T xcalloc __proto((Size_t, Size_t));
656: extern PTR_T xrealloc __proto((PTR_T, Size_t));
657: extern void xfree __proto((PTR_T));
658:
659: extern void fatal(); /* can't use prototypes here */
660: extern void error();
661:
662:
663: #ifndef MIPS_DEBUGGING_INFO
664:
665: static int line_number;
666: static int cur_line_start;
667: static int debug;
668: static int had_errors;
669: static char *progname;
670: static char *input_name;
671:
672: int
673: main ()
674: {
675: fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
676: exit (1);
677: }
678:
679: #else /* MIPS_DEBUGGING defined */
680:
681: /* The local and global symbols have a field index, so undo any defines
682: of index -> strchr and rindex -> strrchr. */
683:
684: #undef rindex
685: #undef index
686:
687: #include <sys/types.h>
688: #include <string.h>
689: #include <ctype.h>
690: #include <fcntl.h>
691: #include <errno.h>
692: #include <signal.h>
693: #include <sys/stat.h>
694:
695: #ifndef CROSS_COMPILE
696: #include <a.out.h>
697: #else
698: #include "mips/a.out.h"
699: #endif /* CROSS_COMPILE */
700:
701: #if defined (USG) || defined (NO_STAB_H)
702: #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
703: #else
704: #include <stab.h> /* On BSD, use the system's stab.h. */
705: #endif /* not USG */
706:
707: #ifdef __GNU_STAB__
708: #define STAB_CODE_TYPE enum __stab_debug_code
709: #else
710: #define STAB_CODE_TYPE int
711: #endif
712:
713: #ifdef _OSF_SOURCE
714: #define HAS_STDLIB_H
715: #define HAS_UNISTD_H
716: #endif
717:
718: #ifdef HAS_STDLIB_H
719: #include <stdlib.h>
720: #endif
721:
722: #ifdef HAS_UNISTD_H
723: #include <unistd.h>
724: #endif
725:
726: #ifndef errno
727: extern int errno; /* MIPS errno.h doesn't declare this */
728: #endif
729:
730: #ifndef MALLOC_CHECK
731: #ifdef __SABER__
732: #define MALLOC_CHECK
733: #endif
734: #endif
735:
736: #define IS_ASM_IDENT(ch) \
737: (isalnum (ch) || (ch) == '_' || (ch) == '.' || (ch) == '$')
738:
739:
740: /* Redefinition of of storage classes as an enumeration for better
741: debugging. */
742:
743: typedef enum sc {
744: sc_Nil = scNil, /* no storage class */
745: sc_Text = scText, /* text symbol */
746: sc_Data = scData, /* initialized data symbol */
747: sc_Bss = scBss, /* un-initialized data symbol */
748: sc_Register = scRegister, /* value of symbol is register number */
749: sc_Abs = scAbs, /* value of symbol is absolute */
750: sc_Undefined = scUndefined, /* who knows? */
751: sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
752: sc_Bits = scBits, /* this is a bit field */
753: sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
754: sc_RegImage = scRegImage, /* register value saved on stack */
755: sc_Info = scInfo, /* symbol contains debugger information */
756: sc_UserStruct = scUserStruct, /* addr in struct user for current process */
757: sc_SData = scSData, /* load time only small data */
758: sc_SBss = scSBss, /* load time only small common */
759: sc_RData = scRData, /* load time only read only data */
760: sc_Var = scVar, /* Var parameter (fortran,pascal) */
761: sc_Common = scCommon, /* common variable */
762: sc_SCommon = scSCommon, /* small common */
763: sc_VarRegister = scVarRegister, /* Var parameter in a register */
764: sc_Variant = scVariant, /* Variant record */
765: sc_SUndefined = scSUndefined, /* small undefined(external) data */
766: sc_Init = scInit, /* .init section symbol */
767: sc_Max = scMax /* Max storage class+1 */
768: } sc_t;
769:
770: /* Redefinition of symbol type. */
771:
772: typedef enum st {
773: st_Nil = stNil, /* Nuthin' special */
774: st_Global = stGlobal, /* external symbol */
775: st_Static = stStatic, /* static */
776: st_Param = stParam, /* procedure argument */
777: st_Local = stLocal, /* local variable */
778: st_Label = stLabel, /* label */
779: st_Proc = stProc, /* " " Procedure */
780: st_Block = stBlock, /* beginning of block */
781: st_End = stEnd, /* end (of anything) */
782: st_Member = stMember, /* member (of anything - struct/union/enum */
783: st_Typedef = stTypedef, /* type definition */
784: st_File = stFile, /* file name */
785: st_RegReloc = stRegReloc, /* register relocation */
786: st_Forward = stForward, /* forwarding address */
787: st_StaticProc = stStaticProc, /* load time only static procs */
788: st_Constant = stConstant, /* const */
789: st_Str = stStr, /* string */
790: st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
791: st_Expr = stExpr, /* 2+2 vs. 4 */
792: st_Type = stType, /* post-coercion SER */
793: st_Max = stMax /* max type+1 */
794: } st_t;
795:
796: /* Redefinition of type qualifiers. */
797:
798: typedef enum tq {
799: tq_Nil = tqNil, /* bt is what you see */
800: tq_Ptr = tqPtr, /* pointer */
801: tq_Proc = tqProc, /* procedure */
802: tq_Array = tqArray, /* duh */
803: tq_Far = tqFar, /* longer addressing - 8086/8 land */
804: tq_Vol = tqVol, /* volatile */
805: tq_Max = tqMax /* Max type qualifier+1 */
806: } tq_t;
807:
808: /* Redefinition of basic types. */
809:
810: typedef enum bt {
811: bt_Nil = btNil, /* undefined */
812: bt_Adr = btAdr, /* address - integer same size as pointer */
813: bt_Char = btChar, /* character */
814: bt_UChar = btUChar, /* unsigned character */
815: bt_Short = btShort, /* short */
816: bt_UShort = btUShort, /* unsigned short */
817: bt_Int = btInt, /* int */
818: bt_UInt = btUInt, /* unsigned int */
819: bt_Long = btLong, /* long */
820: bt_ULong = btULong, /* unsigned long */
821: bt_Float = btFloat, /* float (real) */
822: bt_Double = btDouble, /* Double (real) */
823: bt_Struct = btStruct, /* Structure (Record) */
824: bt_Union = btUnion, /* Union (variant) */
825: bt_Enum = btEnum, /* Enumerated */
826: bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
827: bt_Range = btRange, /* subrange of int */
828: bt_Set = btSet, /* pascal sets */
829: bt_Complex = btComplex, /* fortran complex */
830: bt_DComplex = btDComplex, /* fortran double complex */
831: bt_Indirect = btIndirect, /* forward or unnamed typedef */
832: bt_FixedDec = btFixedDec, /* Fixed Decimal */
833: bt_FloatDec = btFloatDec, /* Float Decimal */
834: bt_String = btString, /* Varying Length Character String */
835: bt_Bit = btBit, /* Aligned Bit String */
836: bt_Picture = btPicture, /* Picture */
837:
838: #ifdef btVoid
839: bt_Void = btVoid, /* Void */
840: #else
841: #define bt_Void bt_Nil
842: #endif
843:
844: bt_Max = btMax /* Max basic type+1 */
845: } bt_t;
846:
847:
848:
849: /* Basic COFF storage classes. */
850: enum coff_storage {
851: C_EFCN = -1,
852: C_NULL = 0,
853: C_AUTO = 1,
854: C_EXT = 2,
855: C_STAT = 3,
856: C_REG = 4,
857: C_EXTDEF = 5,
858: C_LABEL = 6,
859: C_ULABEL = 7,
860: C_MOS = 8,
861: C_ARG = 9,
862: C_STRTAG = 10,
863: C_MOU = 11,
864: C_UNTAG = 12,
865: C_TPDEF = 13,
866: C_USTATIC = 14,
867: C_ENTAG = 15,
868: C_MOE = 16,
869: C_REGPARM = 17,
870: C_FIELD = 18,
871: C_BLOCK = 100,
872: C_FCN = 101,
873: C_EOS = 102,
874: C_FILE = 103,
875: C_LINE = 104,
876: C_ALIAS = 105,
877: C_HIDDEN = 106,
878: C_MAX = 107
879: } coff_storage_t;
880:
881: /* Regular COFF fundamental type. */
882: typedef enum coff_type {
883: T_NULL = 0,
884: T_ARG = 1,
885: T_CHAR = 2,
886: T_SHORT = 3,
887: T_INT = 4,
888: T_LONG = 5,
889: T_FLOAT = 6,
890: T_DOUBLE = 7,
891: T_STRUCT = 8,
892: T_UNION = 9,
893: T_ENUM = 10,
894: T_MOE = 11,
895: T_UCHAR = 12,
896: T_USHORT = 13,
897: T_UINT = 14,
898: T_ULONG = 15,
899: T_MAX = 16
900: } coff_type_t;
901:
902: /* Regular COFF derived types. */
903: typedef enum coff_dt {
904: DT_NON = 0,
905: DT_PTR = 1,
906: DT_FCN = 2,
907: DT_ARY = 3,
908: DT_MAX = 4
909: } coff_dt_t;
910:
911: #define N_BTMASK 017 /* bitmask to isolate basic type */
912: #define N_TMASK 003 /* bitmask to isolate derived type */
913: #define N_BT_SHIFT 4 /* # bits to shift past basic type */
914: #define N_TQ_SHIFT 2 /* # bits to shift derived types */
915: #define N_TQ 6 /* # of type qualifiers */
916:
917: /* States for whether to hash type or not. */
918: typedef enum hash_state {
919: hash_no = 0, /* don't hash type */
920: hash_yes = 1, /* ok to hash type, or use previous hash */
921: hash_record = 2 /* ok to record hash, but don't use prev. */
922: } hash_state_t;
923:
924:
925: /* Types of different sized allocation requests. */
926: enum alloc_type {
927: alloc_type_none, /* dummy value */
928: alloc_type_scope, /* nested scopes linked list */
929: alloc_type_vlinks, /* glue linking pages in varray */
930: alloc_type_shash, /* string hash element */
931: alloc_type_thash, /* type hash element */
932: alloc_type_tag, /* struct/union/tag element */
933: alloc_type_forward, /* element to hold unknown tag */
934: alloc_type_thead, /* head of type hash list */
935: alloc_type_varray, /* general varray allocation */
936: alloc_type_last /* last+1 element for array bounds */
937: };
938:
939:
940: #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
941: #define DWORD_ALIGN(x) (((x) + 7) & ~7)
942:
943:
944: /* Structures to provide n-number of virtual arrays, each of which can
945: grow linearly, and which are written in the object file as sequential
946: pages. On systems with a BSD malloc that define USE_MALLOC, the
947: MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
948: adds it's overhead, and rounds up to the next power of 2. Pages are
949: linked together via a linked list.
950:
951: If PAGE_SIZE is > 4096, the string length in the shash_t structure
952: can't be represented (assuming there are strings > 4096 bytes). */
953:
954: #ifndef PAGE_SIZE
955: #define PAGE_SIZE 4096 /* size of varray pages */
956: #endif
957:
958: #define PAGE_USIZE ((Size_t)PAGE_SIZE)
959:
960:
961: #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
962: #ifndef USE_MALLOC /* in one memory request */
963: #define MAX_CLUSTER_PAGES 64
964: #else
965: #define MAX_CLUSTER_PAGES 63
966: #endif
967: #endif
968:
969:
970: /* Linked list connecting separate page allocations. */
971: typedef struct vlinks {
972: struct vlinks *prev; /* previous set of pages */
973: struct vlinks *next; /* next set of pages */
974: union page *datum; /* start of page */
975: unsigned long start_index; /* starting index # of page */
976: } vlinks_t;
977:
978:
979: /* Virtual array header. */
980: typedef struct varray {
981: vlinks_t *first; /* first page link */
982: vlinks_t *last; /* last page link */
983: unsigned long num_allocated; /* # objects allocated */
984: unsigned short object_size; /* size in bytes of each object */
985: unsigned short objects_per_page; /* # objects that can fit on a page */
986: unsigned short objects_last_page; /* # objects allocated on last page */
987: } varray_t;
988:
989: #ifndef MALLOC_CHECK
990: #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
991: #else
992: #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
993: #endif
994:
995: #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
996: (vlinks_t *)0, /* first */ \
997: (vlinks_t *)0, /* last */ \
998: 0, /* num_allocated */ \
999: sizeof (type), /* object_size */ \
1000: OBJECTS_PER_PAGE (type), /* objects_per_page */ \
1001: OBJECTS_PER_PAGE (type), /* objects_last_page */ \
1002: }
1003:
1004: /* Master type for indexes within the symbol table. */
1005: typedef unsigned long symint_t;
1006:
1007:
1008: /* Linked list support for nested scopes (file, block, structure, etc.). */
1009: typedef struct scope {
1010: struct scope *prev; /* previous scope level */
1011: struct scope *free; /* free list pointer */
1012: SYMR *lsym; /* pointer to local symbol node */
1013: symint_t lnumber; /* lsym index */
1014: st_t type; /* type of the node */
1015: } scope_t;
1016:
1017:
1018: /* Forward reference list for tags referenced, but not yet defined. */
1019: typedef struct forward {
1020: struct forward *next; /* next forward reference */
1021: struct forward *free; /* free list pointer */
1022: AUXU *ifd_ptr; /* pointer to store file index */
1023: AUXU *index_ptr; /* pointer to store symbol index */
1024: AUXU *type_ptr; /* pointer to munge type info */
1025: } forward_t;
1026:
1027:
1028: /* Linked list support for tags. The first tag in the list is always
1029: the current tag for that block. */
1030: typedef struct tag {
1031: struct tag *free; /* free list pointer */
1032: struct shash *hash_ptr; /* pointer to the hash table head */
1033: struct tag *same_name; /* tag with same name in outer scope */
1034: struct tag *same_block; /* next tag defined in the same block. */
1035: struct forward *forward_ref; /* list of forward references */
1036: bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
1037: symint_t ifd; /* file # tag defined in */
1038: symint_t indx; /* index within file's local symbols */
1039: } tag_t;
1040:
1041:
1042: /* Head of a block's linked list of tags. */
1043: typedef struct thead {
1044: struct thead *prev; /* previous block */
1045: struct thead *free; /* free list pointer */
1046: struct tag *first_tag; /* first tag in block defined */
1047: } thead_t;
1048:
1049:
1050: /* Union containing pointers to each the small structures which are freed up. */
1051: typedef union small_free {
1052: scope_t *f_scope; /* scope structure */
1053: thead_t *f_thead; /* tag head structure */
1054: tag_t *f_tag; /* tag element structure */
1055: forward_t *f_forward; /* forward tag reference */
1056: } small_free_t;
1057:
1058:
1059: /* String hash table support. The size of the hash table must fit
1060: within a page. */
1061:
1062: #ifndef SHASH_SIZE
1063: #define SHASH_SIZE 1009
1064: #endif
1065:
1066: #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1067:
1068: typedef struct shash {
1069: struct shash *next; /* next hash value */
1070: char *string; /* string we are hashing */
1071: symint_t len; /* string length */
1072: symint_t indx; /* index within string table */
1073: EXTR *esym_ptr; /* global symbol pointer */
1074: SYMR *sym_ptr; /* local symbol pointer */
1075: SYMR *end_ptr; /* symbol pointer to end block */
1076: tag_t *tag_ptr; /* tag pointer */
1077: PDR *proc_ptr; /* procedure descriptor pointer */
1078: } shash_t;
1079:
1080:
1081: /* Type hash table support. The size of the hash table must fit
1082: within a page with the other extended file descriptor information.
1083: Because unique types which are hashed are fewer in number than
1084: strings, we use a smaller hash value. */
1085:
1086: #ifndef THASH_SIZE
1087: #define THASH_SIZE 113
1088: #endif
1089:
1090: typedef struct thash {
1091: struct thash *next; /* next hash value */
1092: AUXU type; /* type we are hashing */
1093: symint_t indx; /* index within string table */
1094: } thash_t;
1095:
1096:
1097: /* Extended file descriptor that contains all of the support necessary
1098: to add things to each file separately. */
1099: typedef struct efdr {
1100: FDR fdr; /* File header to be written out */
1101: FDR *orig_fdr; /* original file header */
1102: char *name; /* filename */
1103: int name_len; /* length of the filename */
1104: symint_t void_type; /* aux. pointer to 'void' type */
1105: symint_t int_type; /* aux. pointer to 'int' type */
1106: scope_t *cur_scope; /* current nested scopes */
1107: symint_t file_index; /* current file number */
1108: int nested_scopes; /* # nested scopes */
1109: varray_t strings; /* local strings */
1110: varray_t symbols; /* local symbols */
1111: varray_t procs; /* procedures */
1112: varray_t aux_syms; /* auxiliary symbols */
1113: struct efdr *next_file; /* next file descriptor */
1114: /* string/type hash tables */
1115: shash_t **shash_head; /* string hash table */
1116: thash_t *thash_head[THASH_SIZE];
1117: } efdr_t;
1118:
1119: /* Pre-initialized extended file structure. */
1120: static efdr_t init_file =
1121: {
1122: { /* FDR structure */
1123: 0, /* adr: memory address of beginning of file */
1124: 0, /* rss: file name (of source, if known) */
1125: 0, /* issBase: file's string space */
1126: 0, /* cbSs: number of bytes in the ss */
1127: 0, /* isymBase: beginning of symbols */
1128: 0, /* csym: count file's of symbols */
1129: 0, /* ilineBase: file's line symbols */
1130: 0, /* cline: count of file's line symbols */
1131: 0, /* ioptBase: file's optimization entries */
1132: 0, /* copt: count of file's optimization entries */
1133: 0, /* ipdFirst: start of procedures for this file */
1134: 0, /* cpd: count of procedures for this file */
1135: 0, /* iauxBase: file's auxiliary entries */
1136: 0, /* caux: count of file's auxiliary entries */
1137: 0, /* rfdBase: index into the file indirect table */
1138: 0, /* crfd: count file indirect entries */
1139: langC, /* lang: language for this file */
1140: 1, /* fMerge: whether this file can be merged */
1141: 0, /* fReadin: true if read in (not just created) */
1142: #if BYTES_BIG_ENDIAN
1143: 1, /* fBigendian: if 1, compiled on big endian machine */
1144: #else
1145: 0, /* fBigendian: if 1, compiled on big endian machine */
1146: #endif
1147: GLEVEL_2, /* glevel: level this file was compiled with */
1148: 0, /* reserved: reserved for future use */
1149: 0, /* cbLineOffset: byte offset from header for this file ln's */
1150: 0, /* cbLine: size of lines for this file */
1151: },
1152:
1153: (FDR *)0, /* orig_fdr: original file header pointer */
1154: (char *)0, /* name: pointer to filename */
1155: 0, /* name_len: length of filename */
1156: 0, /* void_type: ptr to aux node for void type */
1157: 0, /* int_type: ptr to aux node for int type */
1158: (scope_t *)0, /* cur_scope: current scope being processed */
1159: 0, /* file_index: current file # */
1160: 0, /* nested_scopes: # nested scopes */
1161: INIT_VARRAY (char), /* strings: local string varray */
1162: INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1163: INIT_VARRAY (PDR), /* procs: procedure varray */
1164: INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1165:
1166: (struct efdr *)0, /* next_file: next file structure */
1167:
1168: (shash_t **)0, /* shash_head: string hash table */
1169: { 0 }, /* thash_head: type hash table */
1170: };
1171:
1172:
1173: static efdr_t *first_file; /* first file descriptor */
1174: static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1175:
1176:
1177: /* Union of various things that are held in pages. */
1178: typedef union page {
1179: char byte [ PAGE_SIZE ];
1180: unsigned char ubyte [ PAGE_SIZE ];
1181: efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1182: FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1183: PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1184: SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1185: EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1186: AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1187: DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1188: scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1189: vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1190: shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1191: thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1192: tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1193: forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1194: thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1195: } page_t;
1196:
1197:
1198: /* Structure holding allocation information for small sized structures. */
1199: typedef struct alloc_info {
1200: char *alloc_name; /* name of this allocation type (must be first) */
1201: page_t *cur_page; /* current page being allocated from */
1202: small_free_t free_list; /* current free list if any */
1203: int unallocated; /* number of elements unallocated on page */
1204: int total_alloc; /* total number of allocations */
1205: int total_free; /* total number of frees */
1206: int total_pages; /* total number of pages allocated */
1207: } alloc_info_t;
1208:
1209: /* Type information collected together. */
1210: typedef struct type_info {
1211: bt_t basic_type; /* basic type */
1212: coff_type_t orig_type; /* original COFF-based type */
1213: int num_tq; /* # type qualifiers */
1214: int num_dims; /* # dimensions */
1215: int num_sizes; /* # sizes */
1216: int extra_sizes; /* # extra sizes not tied with dims */
1217: tag_t * tag_ptr; /* tag pointer */
1218: int bitfield; /* symbol is a bitfield */
1219: int unknown_tag; /* this is an unknown tag */
1220: tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1221: symint_t dimensions [N_TQ]; /* dimensions for each array */
1222: symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1223: struct/union/enum + bitfield size */
1224: } type_info_t;
1225:
1226: /* Pre-initialized type_info struct. */
1227: static type_info_t type_info_init = {
1228: bt_Nil, /* basic type */
1229: T_NULL, /* original COFF-based type */
1230: 0, /* # type qualifiers */
1231: 0, /* # dimensions */
1232: 0, /* # sizes */
1233: 0, /* sizes not tied with dims */
1234: NULL, /* ptr to tag */
1235: 0, /* bitfield */
1236: 0, /* unknown tag */
1237: { /* type qualifiers */
1238: tq_Nil,
1239: tq_Nil,
1240: tq_Nil,
1241: tq_Nil,
1242: tq_Nil,
1243: tq_Nil,
1244: },
1245: { /* dimensions */
1246: 0,
1247: 0,
1248: 0,
1249: 0,
1250: 0,
1251: 0
1252: },
1253: { /* sizes */
1254: 0,
1255: 0,
1256: 0,
1257: 0,
1258: 0,
1259: 0,
1260: 0,
1261: 0,
1262: },
1263: };
1264:
1265:
1266: /* Global virtual arrays & hash table for external strings as well as
1267: for the tags table and global tables for file descriptors, and
1268: dense numbers. */
1269:
1270: static varray_t file_desc = INIT_VARRAY (efdr_t);
1271: static varray_t dense_num = INIT_VARRAY (DNR);
1272: static varray_t tag_strings = INIT_VARRAY (char);
1273: static varray_t ext_strings = INIT_VARRAY (char);
1274: static varray_t ext_symbols = INIT_VARRAY (EXTR);
1275:
1276: static shash_t *orig_str_hash[SHASH_SIZE];
1277: static shash_t *ext_str_hash [SHASH_SIZE];
1278: static shash_t *tag_hash [SHASH_SIZE];
1279:
1280: /* Static types for int and void. Also, remember the last function's
1281: type (which is set up when we encounter the declaration for the
1282: function, and used when the end block for the function is emitted. */
1283:
1284: static type_info_t int_type_info;
1285: static type_info_t void_type_info;
1286: static type_info_t last_func_type_info;
1287: static EXTR *last_func_eptr;
1288:
1289:
1290: /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1291: really should use bt_Void, but this causes the current ecoff GDB to
1292: issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1293: 2.0) doesn't understand it, even though the compiler generates it.
1294: Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1295: suite, but for now go with what works. */
1296:
1297: static bt_t map_coff_types[ (int)T_MAX ] = {
1298: bt_Nil, /* T_NULL */
1299: bt_Nil, /* T_ARG */
1300: bt_Char, /* T_CHAR */
1301: bt_Short, /* T_SHORT */
1302: bt_Int, /* T_INT */
1303: bt_Long, /* T_LONG */
1304: bt_Float, /* T_FLOAT */
1305: bt_Double, /* T_DOUBLE */
1306: bt_Struct, /* T_STRUCT */
1307: bt_Union, /* T_UNION */
1308: bt_Enum, /* T_ENUM */
1309: bt_Enum, /* T_MOE */
1310: bt_UChar, /* T_UCHAR */
1311: bt_UShort, /* T_USHORT */
1312: bt_UInt, /* T_UINT */
1313: bt_ULong /* T_ULONG */
1314: };
1315:
1316: /* Convert COFF storage class to ECOFF storage class. */
1317: static sc_t map_coff_storage[ (int)C_MAX ] = {
1318: sc_Nil, /* 0: C_NULL */
1319: sc_Abs, /* 1: C_AUTO auto var */
1320: sc_Undefined, /* 2: C_EXT external */
1321: sc_Data, /* 3: C_STAT static */
1322: sc_Register, /* 4: C_REG register */
1323: sc_Undefined, /* 5: C_EXTDEF ??? */
1324: sc_Text, /* 6: C_LABEL label */
1325: sc_Text, /* 7: C_ULABEL user label */
1326: sc_Info, /* 8: C_MOS member of struct */
1327: sc_Abs, /* 9: C_ARG argument */
1328: sc_Info, /* 10: C_STRTAG struct tag */
1329: sc_Info, /* 11: C_MOU member of union */
1330: sc_Info, /* 12: C_UNTAG union tag */
1331: sc_Info, /* 13: C_TPDEF typedef */
1332: sc_Data, /* 14: C_USTATIC ??? */
1333: sc_Info, /* 15: C_ENTAG enum tag */
1334: sc_Info, /* 16: C_MOE member of enum */
1335: sc_Register, /* 17: C_REGPARM register parameter */
1336: sc_Bits, /* 18; C_FIELD bitfield */
1337: sc_Nil, /* 19 */
1338: sc_Nil, /* 20 */
1339: sc_Nil, /* 21 */
1340: sc_Nil, /* 22 */
1341: sc_Nil, /* 23 */
1342: sc_Nil, /* 24 */
1343: sc_Nil, /* 25 */
1344: sc_Nil, /* 26 */
1345: sc_Nil, /* 27 */
1346: sc_Nil, /* 28 */
1347: sc_Nil, /* 29 */
1348: sc_Nil, /* 30 */
1349: sc_Nil, /* 31 */
1350: sc_Nil, /* 32 */
1351: sc_Nil, /* 33 */
1352: sc_Nil, /* 34 */
1353: sc_Nil, /* 35 */
1354: sc_Nil, /* 36 */
1355: sc_Nil, /* 37 */
1356: sc_Nil, /* 38 */
1357: sc_Nil, /* 39 */
1358: sc_Nil, /* 40 */
1359: sc_Nil, /* 41 */
1360: sc_Nil, /* 42 */
1361: sc_Nil, /* 43 */
1362: sc_Nil, /* 44 */
1363: sc_Nil, /* 45 */
1364: sc_Nil, /* 46 */
1365: sc_Nil, /* 47 */
1366: sc_Nil, /* 48 */
1367: sc_Nil, /* 49 */
1368: sc_Nil, /* 50 */
1369: sc_Nil, /* 51 */
1370: sc_Nil, /* 52 */
1371: sc_Nil, /* 53 */
1372: sc_Nil, /* 54 */
1373: sc_Nil, /* 55 */
1374: sc_Nil, /* 56 */
1375: sc_Nil, /* 57 */
1376: sc_Nil, /* 58 */
1377: sc_Nil, /* 59 */
1378: sc_Nil, /* 60 */
1379: sc_Nil, /* 61 */
1380: sc_Nil, /* 62 */
1381: sc_Nil, /* 63 */
1382: sc_Nil, /* 64 */
1383: sc_Nil, /* 65 */
1384: sc_Nil, /* 66 */
1385: sc_Nil, /* 67 */
1386: sc_Nil, /* 68 */
1387: sc_Nil, /* 69 */
1388: sc_Nil, /* 70 */
1389: sc_Nil, /* 71 */
1390: sc_Nil, /* 72 */
1391: sc_Nil, /* 73 */
1392: sc_Nil, /* 74 */
1393: sc_Nil, /* 75 */
1394: sc_Nil, /* 76 */
1395: sc_Nil, /* 77 */
1396: sc_Nil, /* 78 */
1397: sc_Nil, /* 79 */
1398: sc_Nil, /* 80 */
1399: sc_Nil, /* 81 */
1400: sc_Nil, /* 82 */
1401: sc_Nil, /* 83 */
1402: sc_Nil, /* 84 */
1403: sc_Nil, /* 85 */
1404: sc_Nil, /* 86 */
1405: sc_Nil, /* 87 */
1406: sc_Nil, /* 88 */
1407: sc_Nil, /* 89 */
1408: sc_Nil, /* 90 */
1409: sc_Nil, /* 91 */
1410: sc_Nil, /* 92 */
1411: sc_Nil, /* 93 */
1412: sc_Nil, /* 94 */
1413: sc_Nil, /* 95 */
1414: sc_Nil, /* 96 */
1415: sc_Nil, /* 97 */
1416: sc_Nil, /* 98 */
1417: sc_Nil, /* 99 */
1418: sc_Text, /* 100: C_BLOCK block start/end */
1419: sc_Text, /* 101: C_FCN function start/end */
1420: sc_Info, /* 102: C_EOS end of struct/union/enum */
1421: sc_Nil, /* 103: C_FILE file start */
1422: sc_Nil, /* 104: C_LINE line number */
1423: sc_Nil, /* 105: C_ALIAS combined type info */
1424: sc_Nil, /* 106: C_HIDDEN ??? */
1425: };
1426:
1427: /* Convert COFF storage class to ECOFF symbol type. */
1428: static st_t map_coff_sym_type[ (int)C_MAX ] = {
1429: st_Nil, /* 0: C_NULL */
1430: st_Local, /* 1: C_AUTO auto var */
1431: st_Global, /* 2: C_EXT external */
1432: st_Static, /* 3: C_STAT static */
1433: st_Local, /* 4: C_REG register */
1434: st_Global, /* 5: C_EXTDEF ??? */
1435: st_Label, /* 6: C_LABEL label */
1436: st_Label, /* 7: C_ULABEL user label */
1437: st_Member, /* 8: C_MOS member of struct */
1438: st_Param, /* 9: C_ARG argument */
1439: st_Block, /* 10: C_STRTAG struct tag */
1440: st_Member, /* 11: C_MOU member of union */
1441: st_Block, /* 12: C_UNTAG union tag */
1442: st_Typedef, /* 13: C_TPDEF typedef */
1443: st_Static, /* 14: C_USTATIC ??? */
1444: st_Block, /* 15: C_ENTAG enum tag */
1445: st_Member, /* 16: C_MOE member of enum */
1446: st_Param, /* 17: C_REGPARM register parameter */
1447: st_Member, /* 18; C_FIELD bitfield */
1448: st_Nil, /* 19 */
1449: st_Nil, /* 20 */
1450: st_Nil, /* 21 */
1451: st_Nil, /* 22 */
1452: st_Nil, /* 23 */
1453: st_Nil, /* 24 */
1454: st_Nil, /* 25 */
1455: st_Nil, /* 26 */
1456: st_Nil, /* 27 */
1457: st_Nil, /* 28 */
1458: st_Nil, /* 29 */
1459: st_Nil, /* 30 */
1460: st_Nil, /* 31 */
1461: st_Nil, /* 32 */
1462: st_Nil, /* 33 */
1463: st_Nil, /* 34 */
1464: st_Nil, /* 35 */
1465: st_Nil, /* 36 */
1466: st_Nil, /* 37 */
1467: st_Nil, /* 38 */
1468: st_Nil, /* 39 */
1469: st_Nil, /* 40 */
1470: st_Nil, /* 41 */
1471: st_Nil, /* 42 */
1472: st_Nil, /* 43 */
1473: st_Nil, /* 44 */
1474: st_Nil, /* 45 */
1475: st_Nil, /* 46 */
1476: st_Nil, /* 47 */
1477: st_Nil, /* 48 */
1478: st_Nil, /* 49 */
1479: st_Nil, /* 50 */
1480: st_Nil, /* 51 */
1481: st_Nil, /* 52 */
1482: st_Nil, /* 53 */
1483: st_Nil, /* 54 */
1484: st_Nil, /* 55 */
1485: st_Nil, /* 56 */
1486: st_Nil, /* 57 */
1487: st_Nil, /* 58 */
1488: st_Nil, /* 59 */
1489: st_Nil, /* 60 */
1490: st_Nil, /* 61 */
1491: st_Nil, /* 62 */
1492: st_Nil, /* 63 */
1493: st_Nil, /* 64 */
1494: st_Nil, /* 65 */
1495: st_Nil, /* 66 */
1496: st_Nil, /* 67 */
1497: st_Nil, /* 68 */
1498: st_Nil, /* 69 */
1499: st_Nil, /* 70 */
1500: st_Nil, /* 71 */
1501: st_Nil, /* 72 */
1502: st_Nil, /* 73 */
1503: st_Nil, /* 74 */
1504: st_Nil, /* 75 */
1505: st_Nil, /* 76 */
1506: st_Nil, /* 77 */
1507: st_Nil, /* 78 */
1508: st_Nil, /* 79 */
1509: st_Nil, /* 80 */
1510: st_Nil, /* 81 */
1511: st_Nil, /* 82 */
1512: st_Nil, /* 83 */
1513: st_Nil, /* 84 */
1514: st_Nil, /* 85 */
1515: st_Nil, /* 86 */
1516: st_Nil, /* 87 */
1517: st_Nil, /* 88 */
1518: st_Nil, /* 89 */
1519: st_Nil, /* 90 */
1520: st_Nil, /* 91 */
1521: st_Nil, /* 92 */
1522: st_Nil, /* 93 */
1523: st_Nil, /* 94 */
1524: st_Nil, /* 95 */
1525: st_Nil, /* 96 */
1526: st_Nil, /* 97 */
1527: st_Nil, /* 98 */
1528: st_Nil, /* 99 */
1529: st_Block, /* 100: C_BLOCK block start/end */
1530: st_Proc, /* 101: C_FCN function start/end */
1531: st_End, /* 102: C_EOS end of struct/union/enum */
1532: st_File, /* 103: C_FILE file start */
1533: st_Nil, /* 104: C_LINE line number */
1534: st_Nil, /* 105: C_ALIAS combined type info */
1535: st_Nil, /* 106: C_HIDDEN ??? */
1536: };
1537:
1538: /* Map COFF derived types to ECOFF type qualifiers. */
1539: static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
1540: tq_Nil, /* 0: DT_NON no more qualifiers */
1541: tq_Ptr, /* 1: DT_PTR pointer */
1542: tq_Proc, /* 2: DT_FCN function */
1543: tq_Array, /* 3: DT_ARY array */
1544: };
1545:
1546:
1547: /* Keep track of different sized allocation requests. */
1548: static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1549:
1550:
1551: /* Pointers and such to the original symbol table that is read in. */
1552: static struct filehdr orig_file_header; /* global object file header */
1553:
1554: static HDRR orig_sym_hdr; /* symbolic header on input */
1555: static char *orig_linenum; /* line numbers */
1556: static DNR *orig_dense; /* dense numbers */
1557: static PDR *orig_procs; /* procedures */
1558: static SYMR *orig_local_syms; /* local symbols */
1559: static OPTR *orig_opt_syms; /* optimization symbols */
1560: static AUXU *orig_aux_syms; /* auxiliary symbols */
1561: static char *orig_local_strs; /* local strings */
1562: static char *orig_ext_strs; /* external strings */
1563: static FDR *orig_files; /* file descriptors */
1564: static symint_t *orig_rfds; /* relative file desc's */
1565: static EXTR *orig_ext_syms; /* external symbols */
1566:
1567: /* Macros to convert an index into a given object within the original
1568: symbol table. */
1569: #define CHECK(num,max,str) \
1570: (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1571:
1572: #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1573: #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1574: #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1575: #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1576: #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1577: #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1578: #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1579: #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1580: #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1581: #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1582: #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1583:
1584: /* Various other statics. */
1585: static HDRR symbolic_header; /* symbolic header */
1586: static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1587: static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1588: static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1589: static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1590: static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1591: static thead_t *cur_tag_head = (thead_t *)0; /* current tag head */
1592: static long file_offset = 0; /* current file offset */
1593: static long max_file_offset = 0; /* maximum file offset */
1594: static FILE *object_stream = (FILE *)0; /* file desc. to output .o */
1595: static FILE *obj_in_stream = (FILE *)0; /* file desc. to input .o */
1596: static char *progname = (char *)0; /* program name for errors */
1597: static char *input_name = "stdin"; /* name of input file */
1598: static char *object_name = (char *)0; /* tmp. name of object file */
1599: static char *obj_in_name = (char *)0; /* name of input object file */
1600: static char *cur_line_start = (char *)0; /* current line read in */
1601: static char *cur_line_ptr = (char *)0; /* ptr within current line */
1602: static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1603: static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1604: static long line_number = 0; /* current input line number */
1605: static int debug = 0; /* trace functions */
1606: static int version = 0; /* print version # */
1607: static int had_errors = 0; /* != 0 if errors were found */
1608: static int rename_output = 0; /* != 0 if rename output file*/
1609: static int delete_input = 0; /* != 0 if delete input after done */
1610: static int stabs_seen = 0; /* != 0 if stabs have been seen */
1611:
1612:
1613: /* Pseudo symbol to use when putting stabs into the symbol table. */
1614: #ifndef STABS_SYMBOL
1615: #define STABS_SYMBOL "@stabs"
1616: #endif
1617:
1618: static char stabs_symbol[] = STABS_SYMBOL;
1619:
1620:
1621: /* Forward reference for functions. See the definition for more details. */
1622:
1623: #ifndef STATIC
1624: #define STATIC static
1625: #endif
1626:
1627: STATIC int out_of_bounds __proto((symint_t, symint_t, const char *, int));
1628:
1629: STATIC shash_t *hash_string __proto((const char *,
1630: Ptrdiff_t,
1631: shash_t **,
1632: symint_t *));
1633:
1634: STATIC symint_t add_string __proto((varray_t *,
1635: shash_t **,
1636: const char *,
1637: const char *,
1638: shash_t **));
1639:
1640: STATIC symint_t add_local_symbol
1641: __proto((const char *,
1642: const char *,
1643: st_t,
1644: sc_t,
1645: symint_t,
1646: symint_t));
1647:
1648: STATIC symint_t add_ext_symbol __proto((const char *,
1649: const char *,
1650: st_t,
1651: sc_t,
1652: long,
1653: symint_t,
1654: int));
1655:
1656: STATIC symint_t add_aux_sym_symint
1657: __proto((symint_t));
1658:
1659: STATIC symint_t add_aux_sym_rndx
1660: __proto((int, symint_t));
1661:
1662: STATIC symint_t add_aux_sym_tir __proto((type_info_t *,
1663: hash_state_t,
1664: thash_t **));
1665:
1666: STATIC tag_t * get_tag __proto((const char *,
1667: const char *,
1668: symint_t,
1669: bt_t));
1670:
1671: STATIC void add_unknown_tag __proto((tag_t *));
1672:
1673: STATIC void add_procedure __proto((const char *,
1674: const char *));
1675:
1676: STATIC void add_file __proto((const char *,
1677: const char *));
1678:
1679: STATIC void add_bytes __proto((varray_t *,
1680: char *,
1681: Size_t));
1682:
1683: STATIC void add_varray_page __proto((varray_t *));
1684:
1685: STATIC void update_headers __proto((void));
1686:
1687: STATIC void write_varray __proto((varray_t *, off_t, const char *));
1688: STATIC void write_object __proto((void));
1689: STATIC char *st_to_string __proto((st_t));
1690: STATIC char *sc_to_string __proto((sc_t));
1691: STATIC char *read_line __proto((void));
1692: STATIC void parse_input __proto((void));
1693: STATIC void mark_stabs __proto((const char *));
1694: STATIC void parse_begin __proto((const char *));
1695: STATIC void parse_bend __proto((const char *));
1696: STATIC void parse_def __proto((const char *));
1697: STATIC void parse_end __proto((const char *));
1698: STATIC void parse_ent __proto((const char *));
1699: STATIC void parse_file __proto((const char *));
1700: STATIC void parse_stabs_common
1701: __proto((const char *, const char *, const char *));
1702: STATIC void parse_stabs __proto((const char *));
1703: STATIC void parse_stabn __proto((const char *));
1704: STATIC page_t *read_seek __proto((Size_t, off_t, const char *));
1705: STATIC void copy_object __proto((void));
1706:
1707: STATIC void catch_signal __proto((int));
1708: STATIC page_t *allocate_page __proto((void));
1709:
1710: STATIC page_t *allocate_multiple_pages
1711: __proto((Size_t));
1712:
1713: STATIC void free_multiple_pages
1714: __proto((page_t *, Size_t));
1715:
1716: #ifndef MALLOC_CHECK
1717: STATIC page_t *allocate_cluster
1718: __proto((Size_t));
1719: #endif
1720:
1721: STATIC forward_t *allocate_forward __proto((void));
1722: STATIC scope_t *allocate_scope __proto((void));
1723: STATIC shash_t *allocate_shash __proto((void));
1724: STATIC tag_t *allocate_tag __proto((void));
1725: STATIC thash_t *allocate_thash __proto((void));
1726: STATIC thead_t *allocate_thead __proto((void));
1727: STATIC vlinks_t *allocate_vlinks __proto((void));
1728:
1729: STATIC void free_forward __proto((forward_t *));
1730: STATIC void free_scope __proto((scope_t *));
1731: STATIC void free_tag __proto((tag_t *));
1732: STATIC void free_thead __proto((thead_t *));
1733:
1734: STATIC char *local_index __proto((const char *, int));
1735: STATIC char *local_rindex __proto((const char *, int));
1736:
1737: #ifndef __alpha
1738: extern char *sbrk __proto((int));
1739: extern PTR_T malloc __proto((Size_t));
1740: extern PTR_T calloc __proto((Size_t, Size_t));
1741: extern PTR_T realloc __proto((PTR_T, Size_t));
1742: extern void free __proto((PTR_T));
1743: #endif
1744: extern char *mktemp __proto((char *));
1745: extern long strtol __proto((const char *, char **, int));
1746:
1747: extern char *optarg;
1748: extern int optind;
1749: extern int opterr;
1750: extern char *version_string;
1751: extern char *sys_siglist[NSIG + 1];
1752:
1753: #ifndef SEEK_SET /* Symbolic constants for the "fseek" function: */
1754: #define SEEK_SET 0 /* Set file pointer to offset */
1755: #define SEEK_CUR 1 /* Set file pointer to its current value plus offset */
1756: #define SEEK_END 2 /* Set file pointer to the size of the file plus offset */
1757: #endif
1758:
1759:
1760: /* List of assembler pseudo ops and beginning sequences that need
1761: special actions. Someday, this should be a hash table, and such,
1762: but for now a linear list of names and calls to memcmp will
1763: do...... */
1764:
1765: typedef struct _pseudo_ops {
1766: const char *name; /* pseudo-op in ascii */
1767: int len; /* length of name to compare */
1768: void (*func) __proto((const char *)); /* function to handle line */
1769: } pseudo_ops_t;
1770:
1771: static pseudo_ops_t pseudo_ops[] = {
1772: { "#.def", sizeof("#.def")-1, parse_def },
1773: { "#.begin", sizeof("#.begin")-1, parse_begin },
1774: { "#.bend", sizeof("#.bend")-1, parse_bend },
1775: { ".end", sizeof(".end")-1, parse_end },
1776: { ".ent", sizeof(".ent")-1, parse_ent },
1777: { ".file", sizeof(".file")-1, parse_file },
1778: { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1779: { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1780: { ".stabs", sizeof(".stabs")-1, parse_stabs },
1781: { ".stabn", sizeof(".stabn")-1, parse_stabn },
1782: { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1783: };
1784:
1785:
1786: /* Add a page to a varray object. */
1787:
1788: STATIC void
1789: add_varray_page (vp)
1790: varray_t *vp; /* varray to add page to */
1791: {
1792: vlinks_t *new_links = allocate_vlinks ();
1793:
1794: #ifdef MALLOC_CHECK
1795: if (vp->object_size > 1)
1796: new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1797: else
1798: #endif
1799: new_links->datum = allocate_page ();
1800:
1801: alloc_counts[ (int)alloc_type_varray ].total_alloc++;
1802: alloc_counts[ (int)alloc_type_varray ].total_pages++;
1803:
1804: new_links->start_index = vp->num_allocated;
1805: vp->objects_last_page = 0;
1806:
1807: if (vp->first == (vlinks_t *)0) /* first allocation? */
1808: vp->first = vp->last = new_links;
1809: else
1810: { /* 2nd or greater allocation */
1811: new_links->prev = vp->last;
1812: vp->last->next = new_links;
1813: vp->last = new_links;
1814: }
1815: }
1816:
1817:
1818: /* Compute hash code (from tree.c) */
1819:
1820: #define HASHBITS 30
1821:
1822: STATIC shash_t *
1823: hash_string (text, hash_len, hash_tbl, ret_hash_index)
1824: const char *text; /* ptr to text to hash */
1825: Ptrdiff_t hash_len; /* length of the text */
1826: shash_t **hash_tbl; /* hash table */
1827: symint_t *ret_hash_index; /* ptr to store hash index */
1828: {
1829: register unsigned long hi;
1830: register Ptrdiff_t i;
1831: register shash_t *ptr;
1832: register int first_ch = *text;
1833:
1834: hi = hash_len;
1835: for (i = 0; i < hash_len; i++)
1836: hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1837:
1838: hi &= (1 << HASHBITS) - 1;
1839: hi %= SHASH_SIZE;
1840:
1841: if (ret_hash_index != (symint_t *)0)
1842: *ret_hash_index = hi;
1843:
1844: for (ptr = hash_tbl[hi]; ptr != (shash_t *)0; ptr = ptr->next)
1845: if (hash_len == ptr->len
1846: && first_ch == ptr->string[0]
1847: && memcmp ((CPTR_T) text, (CPTR_T) ptr->string, hash_len) == 0)
1848: break;
1849:
1850: return ptr;
1851: }
1852:
1853:
1854: /* Add a string (and null pad) to one of the string tables. A
1855: consequence of hashing strings, is that we don't let strings
1856: cross page boundaries. The extra nulls will be ignored. */
1857:
1858: STATIC symint_t
1859: add_string (vp, hash_tbl, start, end_p1, ret_hash)
1860: varray_t *vp; /* string virtual array */
1861: shash_t **hash_tbl; /* ptr to hash table */
1862: const char *start; /* 1st byte in string */
1863: const char *end_p1; /* 1st byte after string */
1864: shash_t **ret_hash; /* return hash pointer */
1865: {
1866: register Ptrdiff_t len = end_p1 - start;
1867: register shash_t *hash_ptr;
1868: symint_t hi;
1869:
1870: if (len >= PAGE_USIZE)
1871: fatal ("String too big (%ld bytes)", (long) len);
1872:
1873: hash_ptr = hash_string (start, len, hash_tbl, &hi);
1874: if (hash_ptr == (shash_t *)0)
1875: {
1876: register char *p;
1877:
1878: if (vp->objects_last_page + len >= PAGE_USIZE)
1879: {
1880: vp->num_allocated =
1881: ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1882: add_varray_page (vp);
1883: }
1884:
1885: hash_ptr = allocate_shash ();
1886: hash_ptr->next = hash_tbl[hi];
1887: hash_tbl[hi] = hash_ptr;
1888:
1889: hash_ptr->len = len;
1890: hash_ptr->indx = vp->num_allocated;
1891: hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1892:
1893: vp->objects_last_page += len+1;
1894: vp->num_allocated += len+1;
1895:
1896: while (len-- > 0)
1897: *p++ = *start++;
1898:
1899: *p = '\0';
1900: }
1901:
1902: if (ret_hash != (shash_t **)0)
1903: *ret_hash = hash_ptr;
1904:
1905: return hash_ptr->indx;
1906: }
1907:
1908:
1909: /* Add a local symbol. */
1910:
1911: STATIC symint_t
1912: add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1913: const char *str_start; /* first byte in string */
1914: const char *str_end_p1; /* first byte after string */
1915: st_t type; /* symbol type */
1916: sc_t storage; /* storage class */
1917: symint_t value; /* value of symbol */
1918: symint_t indx; /* index to local/aux. syms */
1919: {
1920: register symint_t ret;
1921: register SYMR *psym;
1922: register scope_t *pscope;
1923: register thead_t *ptag_head;
1924: register tag_t *ptag;
1925: register tag_t *ptag_next;
1926: register varray_t *vp = &cur_file_ptr->symbols;
1927: register int scope_delta = 0;
1928: shash_t *hash_ptr = (shash_t *)0;
1929:
1930: if (vp->objects_last_page == vp->objects_per_page)
1931: add_varray_page (vp);
1932:
1933: psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1934:
1935: psym->value = value;
1936: psym->st = (unsigned) type;
1937: psym->sc = (unsigned) storage;
1938: psym->index = indx;
1939: psym->iss = (str_start == (const char *)0)
1940: ? 0
1941: : add_string (&cur_file_ptr->strings,
1942: &cur_file_ptr->shash_head[0],
1943: str_start,
1944: str_end_p1,
1945: &hash_ptr);
1946:
1947: ret = vp->num_allocated++;
1948:
1949: if (MIPS_IS_STAB(psym))
1950: return ret;
1951:
1952: /* Save the symbol within the hash table if this is a static
1953: item, and it has a name. */
1954: if (hash_ptr != (shash_t *)0
1955: && (type == st_Global || type == st_Static || type == st_Label
1956: || type == st_Proc || type == st_StaticProc))
1957: hash_ptr->sym_ptr = psym;
1958:
1959: /* push or pop a scope if appropriate. */
1960: switch (type)
1961: {
1962: default:
1963: break;
1964:
1965: case st_File: /* beginning of file */
1966: case st_Proc: /* procedure */
1967: case st_StaticProc: /* static procedure */
1968: case st_Block: /* begin scope */
1969: pscope = allocate_scope ();
1970: pscope->prev = cur_file_ptr->cur_scope;
1971: pscope->lsym = psym;
1972: pscope->lnumber = ret;
1973: pscope->type = type;
1974: cur_file_ptr->cur_scope = pscope;
1975:
1976: if (type != st_File)
1977: scope_delta = 1;
1978:
1979: /* For every block type except file, struct, union, or
1980: enumeration blocks, push a level on the tag stack. We omit
1981: file types, so that tags can span file boundaries. */
1982: if (type != st_File && storage != sc_Info)
1983: {
1984: ptag_head = allocate_thead ();
1985: ptag_head->first_tag = 0;
1986: ptag_head->prev = cur_tag_head;
1987: cur_tag_head = ptag_head;
1988: }
1989: break;
1990:
1991: case st_End:
1992: pscope = cur_file_ptr->cur_scope;
1993: if (pscope == (scope_t *)0)
1994: error ("internal error, too many st_End's");
1995:
1996: else
1997: {
1998: st_t begin_type = (st_t) pscope->lsym->st;
1999:
2000: if (begin_type != st_File)
2001: scope_delta = -1;
2002:
2003: /* Except for file, structure, union, or enumeration end
2004: blocks remove all tags created within this scope. */
2005: if (begin_type != st_File && storage != sc_Info)
2006: {
2007: ptag_head = cur_tag_head;
2008: cur_tag_head = ptag_head->prev;
2009:
2010: for (ptag = ptag_head->first_tag;
2011: ptag != (tag_t *)0;
2012: ptag = ptag_next)
2013: {
2014: if (ptag->forward_ref != (forward_t *)0)
2015: add_unknown_tag (ptag);
2016:
2017: ptag_next = ptag->same_block;
2018: ptag->hash_ptr->tag_ptr = ptag->same_name;
2019: free_tag (ptag);
2020: }
2021:
2022: free_thead (ptag_head);
2023: }
2024:
2025: cur_file_ptr->cur_scope = pscope->prev;
2026: psym->index = pscope->lnumber; /* blk end gets begin sym # */
2027:
2028: if (storage != sc_Info)
2029: psym->iss = pscope->lsym->iss; /* blk end gets same name */
2030:
2031: if (begin_type == st_File || begin_type == st_Block)
2032: pscope->lsym->index = ret+1; /* block begin gets next sym # */
2033:
2034: /* Functions push two or more aux words as follows:
2035: 1st word: index+1 of the end symbol
2036: 2nd word: type of the function (plus any aux words needed).
2037: Also, tie the external pointer back to the function begin symbol. */
2038: else
2039: {
2040: symint_t type;
2041: pscope->lsym->index = add_aux_sym_symint (ret+1);
2042: type = add_aux_sym_tir (&last_func_type_info,
2043: hash_no,
2044: &cur_file_ptr->thash_head[0]);
2045: if (last_func_eptr)
2046: {
2047: last_func_eptr->ifd = cur_file_ptr->file_index;
2048:
2049: /* The index for an external st_Proc symbol is the index
2050: of the st_Proc symbol in the local symbol table. */
2051: last_func_eptr->asym.index = psym->index;
2052: }
2053: }
2054:
2055: free_scope (pscope);
2056: }
2057: }
2058:
2059: cur_file_ptr->nested_scopes += scope_delta;
2060:
2061: if (debug && type != st_File
2062: && (debug > 2 || type == st_Block || type == st_End
2063: || type == st_Proc || type == st_StaticProc))
2064: {
2065: char *sc_str = sc_to_string (storage);
2066: char *st_str = st_to_string (type);
2067: int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2068:
2069: fprintf (stderr,
2070: "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2071: value, depth, sc_str);
2072:
2073: if (str_start && str_end_p1 - str_start > 0)
2074: fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2075: else
2076: {
2077: Size_t len = strlen (st_str);
2078: fprintf (stderr, " st= %.*s\n", len-1, st_str);
2079: }
2080: }
2081:
2082: return ret;
2083: }
2084:
2085:
2086: /* Add an external symbol. */
2087:
2088: STATIC symint_t
2089: add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
2090: const char *str_start; /* first byte in string */
2091: const char *str_end_p1; /* first byte after string */
2092: st_t type; /* symbol type */
2093: sc_t storage; /* storage class */
2094: long value; /* value of symbol */
2095: symint_t indx; /* index to local/aux. syms */
2096: int ifd; /* file index */
2097: {
2098: register EXTR *psym;
2099: register varray_t *vp = &ext_symbols;
2100: shash_t *hash_ptr = (shash_t *)0;
2101:
2102: if (debug > 1)
2103: {
2104: char *sc_str = sc_to_string (storage);
2105: char *st_str = st_to_string (type);
2106:
2107: fprintf (stderr,
2108: "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2109: value, ifd, sc_str);
2110:
2111: if (str_start && str_end_p1 - str_start > 0)
2112: fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2113: else
2114: fprintf (stderr, " st= %s\n", st_str);
2115: }
2116:
2117: if (vp->objects_last_page == vp->objects_per_page)
2118: add_varray_page (vp);
2119:
2120: psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2121:
2122: psym->ifd = ifd;
2123: psym->asym.value = value;
2124: psym->asym.st = (unsigned) type;
2125: psym->asym.sc = (unsigned) storage;
2126: psym->asym.index = indx;
2127: psym->asym.iss = (str_start == (const char *)0)
2128: ? 0
2129: : add_string (&ext_strings,
2130: &ext_str_hash[0],
2131: str_start,
2132: str_end_p1,
2133: &hash_ptr);
2134:
2135: hash_ptr->esym_ptr = psym;
2136: return vp->num_allocated++;
2137: }
2138:
2139:
2140: /* Add an auxiliary symbol (passing a symint). */
2141:
2142: STATIC symint_t
2143: add_aux_sym_symint (aux_word)
2144: symint_t aux_word; /* auxiliary information word */
2145: {
2146: register AUXU *aux_ptr;
2147: register efdr_t *file_ptr = cur_file_ptr;
2148: register varray_t *vp = &file_ptr->aux_syms;
2149:
2150: if (vp->objects_last_page == vp->objects_per_page)
2151: add_varray_page (vp);
2152:
2153: aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2154: aux_ptr->isym = aux_word;
2155:
2156: return vp->num_allocated++;
2157: }
2158:
2159:
2160: /* Add an auxiliary symbol (passing a file/symbol index combo). */
2161:
2162: STATIC symint_t
2163: add_aux_sym_rndx (file_index, sym_index)
2164: int file_index;
2165: symint_t sym_index;
2166: {
2167: register AUXU *aux_ptr;
2168: register efdr_t *file_ptr = cur_file_ptr;
2169: register varray_t *vp = &file_ptr->aux_syms;
2170:
2171: if (vp->objects_last_page == vp->objects_per_page)
2172: add_varray_page (vp);
2173:
2174: aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2175: aux_ptr->rndx.rfd = file_index;
2176: aux_ptr->rndx.index = sym_index;
2177:
2178: return vp->num_allocated++;
2179: }
2180:
2181:
2182: /* Add an auxiliary symbol (passing the basic type and possibly
2183: type qualifiers). */
2184:
2185: STATIC symint_t
2186: add_aux_sym_tir (t, state, hash_tbl)
2187: type_info_t *t; /* current type information */
2188: hash_state_t state; /* whether to hash type or not */
2189: thash_t **hash_tbl; /* pointer to hash table to use */
2190: {
2191: register AUXU *aux_ptr;
2192: register efdr_t *file_ptr = cur_file_ptr;
2193: register varray_t *vp = &file_ptr->aux_syms;
2194: static AUXU init_aux;
2195: symint_t ret;
2196: int i;
2197: AUXU aux;
2198:
2199: aux = init_aux;
2200: aux.ti.bt = (int) t->basic_type;
2201: aux.ti.continued = 0;
2202: aux.ti.fBitfield = t->bitfield;
2203:
2204: aux.ti.tq0 = (int) t->type_qualifiers[0];
2205: aux.ti.tq1 = (int) t->type_qualifiers[1];
2206: aux.ti.tq2 = (int) t->type_qualifiers[2];
2207: aux.ti.tq3 = (int) t->type_qualifiers[3];
2208: aux.ti.tq4 = (int) t->type_qualifiers[4];
2209: aux.ti.tq5 = (int) t->type_qualifiers[5];
2210:
2211:
2212: /* For anything that adds additional information, we must not hash,
2213: so check here, and reset our state. */
2214:
2215: if (state != hash_no
2216: && (t->type_qualifiers[0] == tq_Array
2217: || t->type_qualifiers[1] == tq_Array
2218: || t->type_qualifiers[2] == tq_Array
2219: || t->type_qualifiers[3] == tq_Array
2220: || t->type_qualifiers[4] == tq_Array
2221: || t->type_qualifiers[5] == tq_Array
2222: || t->basic_type == bt_Struct
2223: || t->basic_type == bt_Union
2224: || t->basic_type == bt_Enum
2225: || t->bitfield
2226: || t->num_dims > 0))
2227: state = hash_no;
2228:
2229: /* See if we can hash this type, and save some space, but some types
2230: can't be hashed (because they contain arrays or continuations),
2231: and others can be put into the hash list, but cannot use existing
2232: types because other aux entries precede this one. */
2233:
2234: if (state != hash_no)
2235: {
2236: register thash_t *hash_ptr;
2237: register symint_t hi;
2238:
2239: hi = aux.isym & ((1 << HASHBITS) - 1);
2240: hi %= THASH_SIZE;
2241:
2242: for (hash_ptr = hash_tbl[hi];
2243: hash_ptr != (thash_t *)0;
2244: hash_ptr = hash_ptr->next)
2245: {
2246: if (aux.isym == hash_ptr->type.isym)
2247: break;
2248: }
2249:
2250: if (hash_ptr != (thash_t *)0 && state == hash_yes)
2251: return hash_ptr->indx;
2252:
2253: if (hash_ptr == (thash_t *)0)
2254: {
2255: hash_ptr = allocate_thash ();
2256: hash_ptr->next = hash_tbl[hi];
2257: hash_ptr->type = aux;
2258: hash_ptr->indx = vp->num_allocated;
2259: hash_tbl[hi] = hash_ptr;
2260: }
2261: }
2262:
2263: /* Everything is set up, add the aux symbol. */
2264: if (vp->objects_last_page == vp->objects_per_page)
2265: add_varray_page (vp);
2266:
2267: aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2268: *aux_ptr = aux;
2269:
2270: ret = vp->num_allocated++;
2271:
2272: /* Add bitfield length if it exists.
2273:
2274: NOTE: Mips documentation claims bitfield goes at the end of the
2275: AUX record, but the DECstation compiler emits it here.
2276: (This would only make a difference for enum bitfields.)
2277:
2278: Also note: We use the last size given since gcc may emit 2
2279: for an enum bitfield. */
2280:
2281: if (t->bitfield)
2282: (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2283:
2284:
2285: /* Add tag information if needed. Structure, union, and enum
2286: references add 2 aux symbols: a [file index, symbol index]
2287: pointer to the structure type, and the current file index. */
2288:
2289: if (t->basic_type == bt_Struct
2290: || t->basic_type == bt_Union
2291: || t->basic_type == bt_Enum)
2292: {
2293: register symint_t file_index = t->tag_ptr->ifd;
2294: register symint_t sym_index = t->tag_ptr->indx;
2295:
2296: if (t->unknown_tag)
2297: {
2298: (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2299: (void) add_aux_sym_symint ((symint_t)-1);
2300: }
2301: else if (sym_index != indexNil)
2302: {
2303: (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2304: (void) add_aux_sym_symint (file_index);
2305: }
2306: else
2307: {
2308: register forward_t *forward_ref = allocate_forward ();
2309:
2310: forward_ref->type_ptr = aux_ptr;
2311: forward_ref->next = t->tag_ptr->forward_ref;
2312: t->tag_ptr->forward_ref = forward_ref;
2313:
2314: (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2315: forward_ref->index_ptr
2316: = &vp->last->datum->aux[ vp->objects_last_page - 1];
2317:
2318: (void) add_aux_sym_symint (file_index);
2319: forward_ref->ifd_ptr
2320: = &vp->last->datum->aux[ vp->objects_last_page - 1];
2321: }
2322: }
2323:
2324: /* Add information about array bounds if they exist. */
2325: for (i = 0; i < t->num_dims; i++)
2326: {
2327: (void) add_aux_sym_rndx (ST_RFDESCAPE,
2328: cur_file_ptr->int_type);
2329:
2330: (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2331: (void) add_aux_sym_symint ((symint_t)0); /* low bound */
2332: (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2333: (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2334: ? 0
2335: : (t->sizes[i] * 8) / t->dimensions[i]);
2336: };
2337:
2338: /* NOTE: Mips documentation claism that the bitfield width goes here.
2339: But it needs to be emitted earlier. */
2340:
2341: return ret;
2342: }
2343:
2344:
2345: /* Add a tag to the tag table (unless it already exists). */
2346:
2347: STATIC tag_t *
2348: get_tag (tag_start, tag_end_p1, indx, basic_type)
2349: const char *tag_start; /* 1st byte of tag name */
2350: const char *tag_end_p1; /* 1st byte after tag name */
2351: symint_t indx; /* index of tag start block */
2352: bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2353: {
2354: shash_t *hash_ptr;
2355: tag_t *tag_ptr;
2356: hash_ptr = hash_string (tag_start,
2357: tag_end_p1 - tag_start,
2358: &tag_hash[0],
2359: (symint_t *)0);
2360:
2361: if (hash_ptr != (shash_t *)0
2362: && hash_ptr->tag_ptr != (tag_t *)0)
2363: {
2364: tag_ptr = hash_ptr->tag_ptr;
2365: if (indx != indexNil)
2366: {
2367: tag_ptr->basic_type = basic_type;
2368: tag_ptr->ifd = cur_file_ptr->file_index;
2369: tag_ptr->indx = indx;
2370: }
2371: return tag_ptr;
2372: }
2373:
2374: (void) add_string (&tag_strings,
2375: &tag_hash[0],
2376: tag_start,
2377: tag_end_p1,
2378: &hash_ptr);
2379:
2380: tag_ptr = allocate_tag ();
2381: tag_ptr->forward_ref = (forward_t *) 0;
2382: tag_ptr->hash_ptr = hash_ptr;
2383: tag_ptr->same_name = hash_ptr->tag_ptr;
2384: tag_ptr->basic_type = basic_type;
2385: tag_ptr->indx = indx;
2386: tag_ptr->ifd = (indx == indexNil) ? -1 : cur_file_ptr->file_index;
2387: tag_ptr->same_block = cur_tag_head->first_tag;
2388:
2389: cur_tag_head->first_tag = tag_ptr;
2390: hash_ptr->tag_ptr = tag_ptr;
2391:
2392: return tag_ptr;
2393: }
2394:
2395:
2396: /* Add an unknown {struct, union, enum} tag. */
2397:
2398: STATIC void
2399: add_unknown_tag (ptag)
2400: tag_t *ptag; /* pointer to tag information */
2401: {
2402: shash_t *hash_ptr = ptag->hash_ptr;
2403: char *name_start = hash_ptr->string;
2404: char *name_end_p1 = name_start + hash_ptr->len;
2405: forward_t *f_next = ptag->forward_ref;
2406: forward_t *f_cur;
2407: int sym_index;
2408: int file_index = cur_file_ptr->file_index;
2409:
2410: if (debug > 1)
2411: {
2412: char *agg_type = "{unknown aggregate type}";
2413: switch (ptag->basic_type)
2414: {
2415: case bt_Struct: agg_type = "struct"; break;
2416: case bt_Union: agg_type = "union"; break;
2417: case bt_Enum: agg_type = "enum"; break;
2418: default: break;
2419: }
2420:
2421: fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2422: hash_ptr->len, name_start);
2423: }
2424:
2425: sym_index = add_local_symbol (name_start,
2426: name_end_p1,
2427: st_Block,
2428: sc_Info,
2429: (symint_t)0,
2430: (symint_t)0);
2431:
2432: (void) add_local_symbol (name_start,
2433: name_end_p1,
2434: st_End,
2435: sc_Info,
2436: (symint_t)0,
2437: (symint_t)0);
2438:
2439: while (f_next != (forward_t *)0)
2440: {
2441: f_cur = f_next;
2442: f_next = f_next->next;
2443:
2444: f_cur->ifd_ptr->isym = file_index;
2445: f_cur->index_ptr->rndx.index = sym_index;
2446:
2447: free_forward (f_cur);
2448: }
2449:
2450: return;
2451: }
2452:
2453:
2454: /* Add a procedure to the current file's list of procedures, and record
2455: this is the current procedure. If the assembler created a PDR for
2456: this procedure, use that to initialize the current PDR. */
2457:
2458: STATIC void
2459: add_procedure (func_start, func_end_p1)
2460: const char *func_start; /* 1st byte of func name */
2461: const char *func_end_p1; /* 1st byte after func name */
2462: {
2463: register PDR *new_proc_ptr;
2464: register efdr_t *file_ptr = cur_file_ptr;
2465: register varray_t *vp = &file_ptr->procs;
2466: register symint_t value = 0;
2467: register st_t proc_type = st_Proc;
2468: register shash_t *shash_ptr = hash_string (func_start,
2469: func_end_p1 - func_start,
2470: &orig_str_hash[0],
2471: (symint_t *)0);
2472:
2473: if (debug)
2474: fputc ('\n', stderr);
2475:
2476: if (vp->objects_last_page == vp->objects_per_page)
2477: add_varray_page (vp);
2478:
2479: cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2480:
2481: vp->num_allocated++;
2482:
2483:
2484: /* Did the assembler create this procedure? If so, get the PDR information. */
2485: cur_oproc_ptr = (PDR *)0;
2486: if (shash_ptr != (shash_t *)0)
2487: {
2488: register PDR *old_proc_ptr = shash_ptr->proc_ptr;
2489: register SYMR *sym_ptr = shash_ptr->sym_ptr;
2490:
2491: if (old_proc_ptr != (PDR *)0
2492: && sym_ptr != (SYMR *)0
2493: && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
2494: {
2495: cur_oproc_begin = sym_ptr;
2496: cur_oproc_end = shash_ptr->end_ptr;
2497: value = sym_ptr->value;
2498:
2499: cur_oproc_ptr = old_proc_ptr;
2500: proc_type = (st_t)sym_ptr->st;
2501: *new_proc_ptr = *old_proc_ptr; /* initialize */
2502: }
2503: }
2504:
2505: if (cur_oproc_ptr == (PDR *)0)
2506: error ("Did not find a PDR block for %.*s", func_end_p1 - func_start, func_start);
2507:
2508: /* Determine the start of symbols. */
2509: new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2510:
2511: /* Push the start of the function. */
2512: (void) add_local_symbol (func_start, func_end_p1,
2513: proc_type, sc_Text,
2514: value,
2515: (symint_t)0);
2516: }
2517:
2518:
2519: /* Add a new filename, and set up all of the file relative
2520: virtual arrays (strings, symbols, aux syms, etc.). Record
2521: where the current file structure lives. */
2522:
2523: STATIC void
2524: add_file (file_start, file_end_p1)
2525: const char *file_start; /* first byte in string */
2526: const char *file_end_p1; /* first byte after string */
2527: {
2528: static char zero_bytes[2] = { '\0', '\0' };
2529:
2530: register Ptrdiff_t len = file_end_p1 - file_start;
2531: register int first_ch = *file_start;
2532: register efdr_t *file_ptr;
2533:
2534: if (debug)
2535: fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2536:
2537: /* See if the file has already been created. */
2538: for (file_ptr = first_file;
2539: file_ptr != (efdr_t *)0;
2540: file_ptr = file_ptr->next_file)
2541: {
2542: if (first_ch == file_ptr->name[0]
2543: && file_ptr->name[len] == '\0'
2544: && memcmp ((CPTR_T) file_start, (CPTR_T) file_ptr->name, len) == 0)
2545: {
2546: cur_file_ptr = file_ptr;
2547: break;
2548: }
2549: }
2550:
2551: /* If this is a new file, create it. */
2552: if (file_ptr == (efdr_t *)0)
2553: {
2554: if (file_desc.objects_last_page == file_desc.objects_per_page)
2555: add_varray_page (&file_desc);
2556:
2557: file_ptr = cur_file_ptr =
2558: &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2559: *file_ptr = init_file;
2560:
2561: file_ptr->file_index = file_desc.num_allocated++;
2562:
2563: /* Allocate the string hash table. */
2564: file_ptr->shash_head = (shash_t **) allocate_page ();
2565:
2566: /* Make sure 0 byte in string table is null */
2567: add_string (&file_ptr->strings,
2568: &file_ptr->shash_head[0],
2569: &zero_bytes[0],
2570: &zero_bytes[0],
2571: (shash_t **)0);
2572:
2573: if (file_end_p1 - file_start > PAGE_USIZE-2)
2574: fatal ("Filename goes over one page boundary.");
2575:
2576: /* Push the start of the filename. We assume that the filename
2577: will be stored at string offset 1. */
2578: (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2579: (symint_t)0, (symint_t)0);
2580: file_ptr->fdr.rss = 1;
2581: file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2582: file_ptr->name_len = file_end_p1 - file_start;
2583:
2584: /* Update the linked list of file descriptors. */
2585: *last_file_ptr = file_ptr;
2586: last_file_ptr = &file_ptr->next_file;
2587:
2588: /* Add void & int types to the file (void should be first to catch
2589: errant 0's within the index fields). */
2590: file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2591: hash_yes,
2592: &cur_file_ptr->thash_head[0]);
2593:
2594: file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2595: hash_yes,
2596: &cur_file_ptr->thash_head[0]);
2597: }
2598: }
2599:
2600:
2601: /* Add a stream of random bytes to a varray. */
2602:
2603: STATIC void
2604: add_bytes (vp, input_ptr, nitems)
2605: varray_t *vp; /* virtual array to add too */
2606: char *input_ptr; /* start of the bytes */
2607: Size_t nitems; /* # items to move */
2608: {
2609: register Size_t move_items;
2610: register Size_t move_bytes;
2611: register char *ptr;
2612:
2613: while (nitems > 0)
2614: {
2615: if (vp->objects_last_page >= vp->objects_per_page)
2616: add_varray_page (vp);
2617:
2618: ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2619: move_items = vp->objects_per_page - vp->objects_last_page;
2620: if (move_items > nitems)
2621: move_items = nitems;
2622:
2623: move_bytes = move_items * vp->object_size;
2624: nitems -= move_items;
2625:
2626: if (move_bytes >= 32)
2627: {
2628: (void) memcpy ((PTR_T) ptr, (CPTR_T) input_ptr, move_bytes);
2629: input_ptr += move_bytes;
2630: }
2631: else
2632: {
2633: while (move_bytes-- > 0)
2634: *ptr++ = *input_ptr++;
2635: }
2636: }
2637: }
2638:
2639:
2640: /* Convert storage class to string. */
2641:
2642: STATIC char *
2643: sc_to_string(storage_class)
2644: sc_t storage_class;
2645: {
2646: switch(storage_class)
2647: {
2648: case sc_Nil: return "Nil,";
2649: case sc_Text: return "Text,";
2650: case sc_Data: return "Data,";
2651: case sc_Bss: return "Bss,";
2652: case sc_Register: return "Register,";
2653: case sc_Abs: return "Abs,";
2654: case sc_Undefined: return "Undefined,";
2655: case sc_CdbLocal: return "CdbLocal,";
2656: case sc_Bits: return "Bits,";
2657: case sc_CdbSystem: return "CdbSystem,";
2658: case sc_RegImage: return "RegImage,";
2659: case sc_Info: return "Info,";
2660: case sc_UserStruct: return "UserStruct,";
2661: case sc_SData: return "SData,";
2662: case sc_SBss: return "SBss,";
2663: case sc_RData: return "RData,";
2664: case sc_Var: return "Var,";
2665: case sc_Common: return "Common,";
2666: case sc_SCommon: return "SCommon,";
2667: case sc_VarRegister: return "VarRegister,";
2668: case sc_Variant: return "Variant,";
2669: case sc_SUndefined: return "SUndefined,";
2670: case sc_Init: return "Init,";
2671: case sc_Max: return "Max,";
2672: }
2673:
2674: return "???,";
2675: }
2676:
2677:
2678: /* Convert symbol type to string. */
2679:
2680: STATIC char *
2681: st_to_string(symbol_type)
2682: st_t symbol_type;
2683: {
2684: switch(symbol_type)
2685: {
2686: case st_Nil: return "Nil,";
2687: case st_Global: return "Global,";
2688: case st_Static: return "Static,";
2689: case st_Param: return "Param,";
2690: case st_Local: return "Local,";
2691: case st_Label: return "Label,";
2692: case st_Proc: return "Proc,";
2693: case st_Block: return "Block,";
2694: case st_End: return "End,";
2695: case st_Member: return "Member,";
2696: case st_Typedef: return "Typedef,";
2697: case st_File: return "File,";
2698: case st_RegReloc: return "RegReloc,";
2699: case st_Forward: return "Forward,";
2700: case st_StaticProc: return "StaticProc,";
2701: case st_Constant: return "Constant,";
2702: case st_Str: return "String,";
2703: case st_Number: return "Number,";
2704: case st_Expr: return "Expr,";
2705: case st_Type: return "Type,";
2706: case st_Max: return "Max,";
2707: }
2708:
2709: return "???,";
2710: }
2711:
2712:
2713: /* Read a line from standard input, and return the start of the buffer
2714: (which is grows if the line is too big). We split lines at the
2715: semi-colon, and return each logical line independently. */
2716:
2717: STATIC char *
2718: read_line __proto((void))
2719: {
2720: static int line_split_p = 0;
2721: register int string_p = 0;
2722: register int comment_p = 0;
2723: register int ch;
2724: register char *ptr;
2725:
2726: if (cur_line_start == (char *)0)
2727: { /* allocate initial page */
2728: cur_line_start = (char *) allocate_page ();
2729: cur_line_alloc = PAGE_SIZE;
2730: }
2731:
2732: if (!line_split_p)
2733: line_number++;
2734:
2735: line_split_p = 0;
2736: cur_line_nbytes = 0;
2737:
2738: for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2739: {
2740: if (++cur_line_nbytes >= cur_line_alloc-1)
2741: {
2742: register int num_pages = cur_line_alloc / PAGE_SIZE;
2743: register char *old_buffer = cur_line_start;
2744:
2745: cur_line_alloc += PAGE_SIZE;
2746: cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2747: memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2748:
2749: ptr = cur_line_start + cur_line_nbytes - 1;
2750: }
2751:
2752: if (ch == '\n')
2753: {
2754: *ptr++ = '\n';
2755: *ptr = '\0';
2756: cur_line_ptr = cur_line_start;
2757: return cur_line_ptr;
2758: }
2759:
2760: else if (ch == '\0')
2761: error ("Null character found in input");
2762:
2763: else if (!comment_p)
2764: {
2765: if (ch == '"')
2766: string_p = !string_p;
2767:
2768: else if (ch == '#')
2769: comment_p++;
2770:
2771: else if (ch == ';' && !string_p)
2772: {
2773: line_split_p = 1;
2774: *ptr++ = '\n';
2775: *ptr = '\0';
2776: cur_line_ptr = cur_line_start;
2777: return cur_line_ptr;
2778: }
2779: }
2780: }
2781:
2782: if (ferror (stdin))
2783: pfatal_with_name (input_name);
2784:
2785: cur_line_ptr = (char *)0;
2786: return (char *)0;
2787: }
2788:
2789:
2790: /* Parse #.begin directives which have a label as the first argument
2791: which gives the location of the start of the block. */
2792:
2793: STATIC void
2794: parse_begin (start)
2795: const char *start; /* start of directive */
2796: {
2797: const char *end_p1; /* end of label */
2798: int ch;
2799: shash_t *hash_ptr; /* hash pointer to lookup label */
2800:
2801: if (cur_file_ptr == (efdr_t *)0)
2802: {
2803: error ("#.begin directive without a preceding .file directive");
2804: return;
2805: }
2806:
2807: if (cur_proc_ptr == (PDR *)0)
2808: {
2809: error ("#.begin directive without a preceding .ent directive");
2810: return;
2811: }
2812:
2813: for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2814: ;
2815:
2816: hash_ptr = hash_string (start,
2817: end_p1 - start,
2818: &orig_str_hash[0],
2819: (symint_t *)0);
2820:
2821: if (hash_ptr == (shash_t *)0)
2822: {
2823: error ("Label %.*s not found for #.begin", end_p1 - start, start);
2824: return;
2825: }
2826:
2827: if (cur_oproc_begin == (SYMR *)0)
2828: {
2829: error ("Procedure table %.*s not found for #.begin", end_p1 - start, start);
2830: return;
2831: }
2832:
2833: (void) add_local_symbol ((const char *)0, (const char *)0,
2834: st_Block, sc_Text,
2835: (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2836: (symint_t)0);
2837: }
2838:
2839:
2840: /* Parse #.bend directives which have a label as the first argument
2841: which gives the location of the end of the block. */
2842:
2843: STATIC void
2844: parse_bend (start)
2845: const char *start; /* start of directive */
2846: {
2847: const char *end_p1; /* end of label */
2848: int ch;
2849: shash_t *hash_ptr; /* hash pointer to lookup label */
2850:
2851: if (cur_file_ptr == (efdr_t *)0)
2852: {
2853: error ("#.begin directive without a preceding .file directive");
2854: return;
2855: }
2856:
2857: if (cur_proc_ptr == (PDR *)0)
2858: {
2859: error ("#.bend directive without a preceding .ent directive");
2860: return;
2861: }
2862:
2863: for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2864: ;
2865:
2866: hash_ptr = hash_string (start,
2867: end_p1 - start,
2868: &orig_str_hash[0],
2869: (symint_t *)0);
2870:
2871: if (hash_ptr == (shash_t *)0)
2872: {
2873: error ("Label %.*s not found for #.bend", end_p1 - start, start);
2874: return;
2875: }
2876:
2877: if (cur_oproc_begin == (SYMR *)0)
2878: {
2879: error ("Procedure table %.*s not found for #.bend", end_p1 - start, start);
2880: return;
2881: }
2882:
2883: (void) add_local_symbol ((const char *)0, (const char *)0,
2884: st_End, sc_Text,
2885: (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2886: (symint_t)0);
2887: }
2888:
2889:
2890: /* Parse #.def directives, which are contain standard COFF subdirectives
2891: to describe the debugging format. These subdirectives include:
2892:
2893: .scl specify storage class
2894: .val specify a value
2895: .endef specify end of COFF directives
2896: .type specify the type
2897: .size specify the size of an array
2898: .dim specify an array dimension
2899: .tag specify a tag for a struct, union, or enum. */
2900:
2901: STATIC void
2902: parse_def (name_start)
2903: const char *name_start; /* start of directive */
2904: {
2905: const char *dir_start; /* start of current directive*/
2906: const char *dir_end_p1; /* end+1 of current directive*/
2907: const char *arg_start; /* start of current argument */
2908: const char *arg_end_p1; /* end+1 of current argument */
2909: const char *name_end_p1; /* end+1 of label */
2910: const char *tag_start = (const char *)0; /* start of tag name */
2911: const char *tag_end_p1 = (const char *)0; /* end+1 of tag name */
2912: sc_t storage_class = sc_Nil;
2913: st_t symbol_type = st_Nil;
2914: type_info_t t;
2915: EXTR *eptr = (EXTR *)0; /* ext. sym equivalent to def*/
2916: int is_function = 0; /* != 0 if function */
2917: symint_t value = 0;
2918: symint_t indx = cur_file_ptr->void_type;
2919: int error_line = 0;
2920: symint_t arg_number;
2921: symint_t temp_array[ N_TQ ];
2922: int arg_was_number;
2923: int ch, i;
2924: Ptrdiff_t len;
2925:
2926: static int inside_enumeration = 0; /* is this an enumeration? */
2927:
2928:
2929: /* Initialize the type information. */
2930: t = type_info_init;
2931:
2932:
2933: /* Search for the end of the name being defined. */
2934: /* Allow spaces and such in names for G++ templates, which produce stabs
2935: that look like:
2936:
2937: #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2938:
2939: for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2940: ;
2941:
2942: if (ch == '\0')
2943: {
2944: error_line = __LINE__;
2945: saber_stop ();
2946: goto bomb_out;
2947: }
2948:
2949: /* Parse the remaining subdirectives now. */
2950: dir_start = name_end_p1+1;
2951: for (;;)
2952: {
2953: while ((ch = *dir_start) == ' ' || ch == '\t')
2954: ++dir_start;
2955:
2956: if (ch != '.')
2957: {
2958: error_line = __LINE__;
2959: saber_stop ();
2960: goto bomb_out;
2961: }
2962:
2963: /* Are we done? */
2964: if (dir_start[1] == 'e'
2965: && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2966: break;
2967:
2968: /* Pick up the subdirective now */
2969: for (dir_end_p1 = dir_start+1;
2970: (ch = *dir_end_p1) != ' ' && ch != '\t';
2971: dir_end_p1++)
2972: {
2973: if (ch == '\0' || isspace (ch))
2974: {
2975: error_line = __LINE__;
2976: saber_stop ();
2977: goto bomb_out;
2978: }
2979: }
2980:
2981: /* Pick up the subdirective argument now. */
2982: arg_was_number = arg_number = 0;
2983: arg_end_p1 = (const char *)0;
2984: arg_start = dir_end_p1+1;
2985: ch = *arg_start;
2986: while (ch == ' ' || ch == '\t')
2987: ch = *++arg_start;
2988:
2989: if (isdigit (ch) || ch == '-' || ch == '+')
2990: {
2991: int ch2;
2992: arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2993: if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
2994: arg_was_number++;
2995: }
2996:
2997: else if (ch == '\0' || isspace (ch))
2998: {
2999: error_line = __LINE__;
3000: saber_stop ();
3001: goto bomb_out;
3002: }
3003:
3004: if (!arg_was_number)
3005: {
3006: /* Allow spaces and such in names for G++ templates. */
3007: for (arg_end_p1 = arg_start+1;
3008: (ch = *arg_end_p1) != ';' && ch != '\0';
3009: arg_end_p1++)
3010: ;
3011:
3012: if (ch == '\0')
3013: {
3014: error_line = __LINE__;
3015: saber_stop ();
3016: goto bomb_out;
3017: }
3018: }
3019:
3020: /* Classify the directives now. */
3021: len = dir_end_p1 - dir_start;
3022: switch (dir_start[1])
3023: {
3024: default:
3025: error_line = __LINE__;
3026: saber_stop ();
3027: goto bomb_out;
3028:
3029: case 'd':
3030: if (len == sizeof (".dim")-1
3031: && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
3032: && arg_was_number)
3033: {
3034: symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3035:
3036: *t_ptr = arg_number;
3037: while (*arg_end_p1 == ',' && arg_was_number)
3038: {
3039: arg_start = arg_end_p1+1;
3040: ch = *arg_start;
3041: while (ch == ' ' || ch == '\t')
3042: ch = *++arg_start;
3043:
3044: arg_was_number = 0;
3045: if (isdigit (ch) || ch == '-' || ch == '+')
3046: {
3047: int ch2;
3048: arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3049: if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3050: arg_was_number++;
3051:
3052: if (t_ptr == &temp_array[0])
3053: {
3054: error_line = __LINE__;
3055: saber_stop ();
3056: goto bomb_out;
3057: }
3058:
3059: *--t_ptr = arg_number;
3060: }
3061: }
3062:
3063: /* Reverse order of dimensions. */
3064: while (t_ptr <= &temp_array[ N_TQ-1 ])
3065: {
3066: if (t.num_dims >= N_TQ-1)
3067: {
3068: error_line = __LINE__;
3069: saber_stop ();
3070: goto bomb_out;
3071: }
3072:
3073: t.dimensions[ t.num_dims++ ] = *t_ptr++;
3074: }
3075: break;
3076: }
3077: else
3078: {
3079: error_line = __LINE__;
3080: saber_stop ();
3081: goto bomb_out;
3082: }
3083:
3084:
3085: case 's':
3086: if (len == sizeof (".scl")-1
3087: && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3088: && arg_was_number
3089: && arg_number < ((symint_t) C_MAX))
3090: {
3091: /* If the symbol is a static or external, we have
3092: already gotten the appropriate type and class, so
3093: make sure we don't override those values. This is
3094: needed because there are some type and classes that
3095: are not in COFF, such as short data, etc. */
3096: if (symbol_type == st_Nil)
3097: {
3098: symbol_type = map_coff_sym_type[arg_number];
3099: storage_class = map_coff_storage [arg_number];
3100: }
3101: break;
3102: }
3103:
3104: else if (len == sizeof (".size")-1
3105: && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3106: && arg_was_number)
3107: {
3108: symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3109:
3110: *t_ptr = arg_number;
3111: while (*arg_end_p1 == ',' && arg_was_number)
3112: {
3113: arg_start = arg_end_p1+1;
3114: ch = *arg_start;
3115: while (ch == ' ' || ch == '\t')
3116: ch = *++arg_start;
3117:
3118: arg_was_number = 0;
3119: if (isdigit (ch) || ch == '-' || ch == '+')
3120: {
3121: int ch2;
3122: arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3123: if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3124: arg_was_number++;
3125:
3126: if (t_ptr == &temp_array[0])
3127: {
3128: error_line = __LINE__;
3129: saber_stop ();
3130: goto bomb_out;
3131: }
3132:
3133: *--t_ptr = arg_number;
3134: }
3135: }
3136:
3137: /* Reverse order of sizes. */
3138: while (t_ptr <= &temp_array[ N_TQ-1 ])
3139: {
3140: if (t.num_sizes >= N_TQ-1)
3141: {
3142: error_line = __LINE__;
3143: saber_stop ();
3144: goto bomb_out;
3145: }
3146:
3147: t.sizes[ t.num_sizes++ ] = *t_ptr++;
3148: }
3149: break;
3150: }
3151:
3152: else
3153: {
3154: error_line = __LINE__;
3155: saber_stop ();
3156: goto bomb_out;
3157: }
3158:
3159:
3160: case 't':
3161: if (len == sizeof (".type")-1
3162: && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3163: && arg_was_number)
3164: {
3165: tq_t *tq_ptr = &t.type_qualifiers[0];
3166:
3167: t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3168: t.basic_type = map_coff_types [(int)t.orig_type];
3169: for (i = N_TQ-1; i >= 0; i--)
3170: {
3171: int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3172: & N_TMASK);
3173:
3174: if (dt != (int)DT_NON)
3175: *tq_ptr++ = map_coff_derived_type [dt];
3176: }
3177:
3178: /* If this is a function, ignore it, so that we don't get
3179: two entries (one from the .ent, and one for the .def
3180: that precedes it). Save the type information so that
3181: the end block can properly add it after the begin block
3182: index. For MIPS knows what reason, we must strip off
3183: the function type at this point. */
3184: if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3185: {
3186: is_function = 1;
3187: tq_ptr[-1] = tq_Nil;
3188: }
3189:
3190: break;
3191: }
3192:
3193: else if (len == sizeof (".tag")-1
3194: && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3195: {
3196: tag_start = arg_start;
3197: tag_end_p1 = arg_end_p1;
3198: break;
3199: }
3200:
3201: else
3202: {
3203: error_line = __LINE__;
3204: saber_stop ();
3205: goto bomb_out;
3206: }
3207:
3208:
3209: case 'v':
3210: if (len == sizeof (".val")-1
3211: && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3212: {
3213: if (arg_was_number)
3214: value = arg_number;
3215:
3216: /* If the value is not an integer value, it must be the
3217: name of a static or global item. Look up the name in
3218: the original symbol table to pick up the storage
3219: class, symbol type, etc. */
3220: else
3221: {
3222: shash_t *orig_hash_ptr; /* hash within orig sym table*/
3223: shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3224:
3225: ext_hash_ptr = hash_string (arg_start,
3226: arg_end_p1 - arg_start,
3227: &ext_str_hash[0],
3228: (symint_t *)0);
3229:
3230: if (ext_hash_ptr != (shash_t *)0
3231: && ext_hash_ptr->esym_ptr != (EXTR *)0)
3232: eptr = ext_hash_ptr->esym_ptr;
3233:
3234: orig_hash_ptr = hash_string (arg_start,
3235: arg_end_p1 - arg_start,
3236: &orig_str_hash[0],
3237: (symint_t *)0);
3238:
3239: if ((orig_hash_ptr == (shash_t *)0
3240: || orig_hash_ptr->sym_ptr == (SYMR *)0)
3241: && eptr == (EXTR *)0)
3242: {
3243: fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3244: arg_end_p1 - arg_start,
3245: arg_start);
3246: value = 0;
3247: }
3248: else
3249: {
3250: SYMR *ptr = (orig_hash_ptr != (shash_t *)0
3251: && orig_hash_ptr->sym_ptr != (SYMR *)0)
3252: ? orig_hash_ptr->sym_ptr
3253: : &eptr->asym;
3254:
3255: symbol_type = (st_t) ptr->st;
3256: storage_class = (sc_t) ptr->sc;
3257: value = ptr->value;
3258: }
3259: }
3260: break;
3261: }
3262: else
3263: {
3264: error_line = __LINE__;
3265: saber_stop ();
3266: goto bomb_out;
3267: }
3268: }
3269:
3270: /* Set up to find next directive. */
3271: dir_start = arg_end_p1 + 1;
3272: }
3273:
3274:
3275: t.extra_sizes = (tag_start != (char *)0);
3276: if (t.num_dims > 0)
3277: {
3278: int diff = t.num_dims - t.num_sizes;
3279: int i = t.num_dims - 1;
3280: int j;
3281:
3282: if (t.num_sizes != 1 || diff < 0)
3283: {
3284: error_line = __LINE__;
3285: saber_stop ();
3286: goto bomb_out;
3287: }
3288:
3289: /* If this is an array, make sure the same number of dimensions
3290: and sizes were passed, creating extra sizes for multiply
3291: dimensioned arrays if not passed. */
3292:
3293: t.extra_sizes = 0;
3294: if (diff)
3295: {
3296: for (j = (sizeof (t.sizes) / sizeof (t.sizes[0])) - 1; j >= 0; j--)
3297: t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3298:
3299: t.num_sizes = i + 1;
3300: for ( i--; i >= 0; i-- )
3301: {
3302: if (t.dimensions[ i+1 ])
3303: t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3304: else
3305: t.sizes[ i ] = t.sizes[ i+1 ];
3306: }
3307: }
3308: }
3309:
3310: else if (symbol_type == st_Member && t.num_sizes - t.extra_sizes == 1)
3311: { /* Is this a bitfield? This is indicated by a structure memeber
3312: having a size field that isn't an array. */
3313:
3314: t.bitfield = 1;
3315: }
3316:
3317:
3318: /* Except for enumeration members & begin/ending of scopes, put the
3319: type word in the aux. symbol table. */
3320:
3321: if (symbol_type == st_Block || symbol_type == st_End)
3322: indx = 0;
3323:
3324: else if (inside_enumeration)
3325: indx = cur_file_ptr->void_type;
3326:
3327: else
3328: {
3329: if (t.basic_type == bt_Struct
3330: || t.basic_type == bt_Union
3331: || t.basic_type == bt_Enum)
3332: {
3333: if (tag_start == (char *)0)
3334: {
3335: error ("No tag specified for %.*s",
3336: name_end_p1 - name_start,
3337: name_start);
3338: return;
3339: }
3340:
3341: t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
3342: t.basic_type);
3343: }
3344:
3345: if (is_function)
3346: {
3347: last_func_type_info = t;
3348: last_func_eptr = eptr;
3349: return;
3350: }
3351:
3352: indx = add_aux_sym_tir (&t,
3353: hash_yes,
3354: &cur_file_ptr->thash_head[0]);
3355: }
3356:
3357:
3358: /* If this is an external or static symbol, update the appropriate
3359: external symbol. */
3360:
3361: if (eptr != (EXTR *)0
3362: && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *)0))
3363: {
3364: eptr->ifd = cur_file_ptr->file_index;
3365: eptr->asym.index = indx;
3366: }
3367:
3368:
3369: /* Do any last minute adjustments that are necessary. */
3370: switch (symbol_type)
3371: {
3372: default:
3373: break;
3374:
3375:
3376: /* For the beginning of structs, unions, and enumerations, the
3377: size info needs to be passed in the value field. */
3378:
3379: case st_Block:
3380: if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3381: {
3382: error_line = __LINE__;
3383: saber_stop ();
3384: goto bomb_out;
3385: }
3386:
3387: else
3388: value = t.sizes[0];
3389:
3390: inside_enumeration = (t.orig_type == T_ENUM);
3391: break;
3392:
3393:
3394: /* For the end of structs, unions, and enumerations, omit the
3395: name which is always ".eos". This needs to be done last, so
3396: that any error reporting above gives the correct name. */
3397:
3398: case st_End:
3399: name_start = name_end_p1 = (const char *)0;
3400: value = inside_enumeration = 0;
3401: break;
3402:
3403:
3404: /* Members of structures and unions that aren't bitfields, need
3405: to adjust the value from a byte offset to a bit offset.
3406: Members of enumerations do not have the value adjusted, and
3407: can be distinguished by indx == indexNil. For enumerations,
3408: update the maximum enumeration value. */
3409:
3410: case st_Member:
3411: if (!t.bitfield && !inside_enumeration)
3412: value *= 8;
3413:
3414: break;
3415: }
3416:
3417:
3418: /* Add the symbol, except for global symbols outside of functions,
3419: for which the external symbol table is fine enough. */
3420:
3421: if (eptr == (EXTR *)0
3422: || eptr->asym.st == (int)st_Nil
3423: || cur_proc_ptr != (PDR *)0)
3424: {
3425: symint_t isym = add_local_symbol (name_start, name_end_p1,
3426: symbol_type, storage_class,
3427: value,
3428: indx);
3429:
3430: /* deal with struct, union, and enum tags. */
3431: if (symbol_type == st_Block)
3432: {
3433: /* Create or update the tag information. */
3434: tag_t *tag_ptr = get_tag (name_start,
3435: name_end_p1,
3436: isym,
3437: t.basic_type);
3438:
3439: /* If there are any forward references, fill in the appropriate
3440: file and symbol indexes. */
3441:
3442: symint_t file_index = cur_file_ptr->file_index;
3443: forward_t *f_next = tag_ptr->forward_ref;
3444: forward_t *f_cur;
3445:
3446: while (f_next != (forward_t *)0)
3447: {
3448: f_cur = f_next;
3449: f_next = f_next->next;
3450:
3451: f_cur->ifd_ptr->isym = file_index;
3452: f_cur->index_ptr->rndx.index = isym;
3453:
3454: free_forward (f_cur);
3455: }
3456:
3457: tag_ptr->forward_ref = (forward_t *)0;
3458: }
3459: }
3460:
3461: /* Normal return */
3462: return;
3463:
3464: /* Error return, issue message. */
3465: bomb_out:
3466: if (error_line)
3467: error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3468: else
3469: error ("compiler error, badly formed #.def");
3470:
3471: return;
3472: }
3473:
3474:
3475: /* Parse .end directives. */
3476:
3477: STATIC void
3478: parse_end (start)
3479: const char *start; /* start of directive */
3480: {
3481: register const char *start_func, *end_func_p1;
3482: register int ch;
3483: register symint_t value;
3484: register FDR *orig_fdr;
3485:
3486: if (cur_file_ptr == (efdr_t *)0)
3487: {
3488: error (".end directive without a preceding .file directive");
3489: return;
3490: }
3491:
3492: if (cur_proc_ptr == (PDR *)0)
3493: {
3494: error (".end directive without a preceding .ent directive");
3495: return;
3496: }
3497:
3498: /* Get the function name, skipping whitespace. */
3499: for (start_func = start; isspace (*start_func); start_func++)
3500: ;
3501:
3502: ch = *start_func;
3503: if (!IS_ASM_IDENT (ch))
3504: {
3505: error (".end directive has no name");
3506: return;
3507: }
3508:
3509: for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3510: ;
3511:
3512:
3513: /* Get the value field for creating the end from the original object
3514: file (which we find by locating the procedure start, and using the
3515: pointer to the end+1 block and backing up. The index points to a
3516: two word aux. symbol, whose first word is the index of the end
3517: symbol, and the second word is the type of the function return
3518: value. */
3519:
3520: orig_fdr = cur_file_ptr->orig_fdr;
3521: value = 0;
3522: if (orig_fdr != (FDR *)0 && cur_oproc_end != (SYMR *)0)
3523: value = cur_oproc_end->value;
3524:
3525: else
3526: error ("Cannot find .end block for %.*s", end_func_p1 - start_func, start_func);
3527:
3528: (void) add_local_symbol (start_func, end_func_p1,
3529: st_End, sc_Text,
3530: value,
3531: (symint_t)0);
3532:
3533: cur_proc_ptr = cur_oproc_ptr = (PDR *)0;
3534: }
3535:
3536:
3537: /* Parse .ent directives. */
3538:
3539: STATIC void
3540: parse_ent (start)
3541: const char *start; /* start of directive */
3542: {
3543: register const char *start_func, *end_func_p1;
3544: register int ch;
3545:
3546: if (cur_file_ptr == (efdr_t *)0)
3547: {
3548: error (".ent directive without a preceding .file directive");
3549: return;
3550: }
3551:
3552: if (cur_proc_ptr != (PDR *)0)
3553: {
3554: error ("second .ent directive found before .end directive");
3555: return;
3556: }
3557:
3558: for (start_func = start; isspace (*start_func); start_func++)
3559: ;
3560:
3561: ch = *start_func;
3562: if (!IS_ASM_IDENT (ch))
3563: {
3564: error (".ent directive has no name");
3565: return;
3566: }
3567:
3568: for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3569: ;
3570:
3571: (void) add_procedure (start_func, end_func_p1);
3572: }
3573:
3574:
3575: /* Parse .file directives. */
3576:
3577: STATIC void
3578: parse_file (start)
3579: const char *start; /* start of directive */
3580: {
3581: char *p;
3582: register char *start_name, *end_name_p1;
3583:
3584: (void) strtol (start, &p, 0);
3585: if (start == p
3586: || (start_name = local_index (p, '"')) == (char *)0
3587: || (end_name_p1 = local_rindex (++start_name, '"')) == (char *)0)
3588: {
3589: error ("Invalid .file directive");
3590: return;
3591: }
3592:
3593: if (cur_proc_ptr != (PDR *)0)
3594: {
3595: error ("No way to handle .file within .ent/.end section");
3596: return;
3597: }
3598:
3599: add_file (start_name, end_name_p1);
3600: }
3601:
3602:
3603: /* Make sure the @stabs symbol is emitted. */
3604:
3605: static void
3606: mark_stabs (start)
3607: const char *start; /* Start of directive (ignored) */
3608: {
3609: if (!stabs_seen)
3610: {
3611: /* Add a dummy @stabs dymbol. */
3612: stabs_seen = 1;
3613: (void) add_local_symbol (stabs_symbol,
3614: stabs_symbol + sizeof (stabs_symbol),
3615: stNil, scInfo, -1, MIPS_MARK_STAB(0));
3616:
3617: }
3618: }
3619:
3620:
3621: /* Parse .stabs directives.
3622:
3623: .stabs directives have five fields:
3624: "string" a string, encoding the type information.
3625: code a numeric code, defined in <stab.h>
3626: 0 a zero
3627: 0 a zero or line number
3628: value a numeric value or an address.
3629:
3630: If the value is relocatable, we transform this into:
3631: iss points as an index into string space
3632: value value from lookup of the name
3633: st st from lookup of the name
3634: sc sc from lookup of the name
3635: index code|CODE_MASK
3636:
3637: If the value is not relocatable, we transform this into:
3638: iss points as an index into string space
3639: value value
3640: st st_Nil
3641: sc sc_Nil
3642: index code|CODE_MASK
3643:
3644: .stabn directives have four fields (string is null):
3645: code a numeric code, defined in <stab.h>
3646: 0 a zero
3647: 0 a zero or a line number
3648: value a numeric value or an address. */
3649:
3650: STATIC void
3651: parse_stabs_common (string_start, string_end, rest)
3652: const char *string_start; /* start of string or NULL */
3653: const char *string_end; /* end+1 of string or NULL */
3654: const char *rest; /* rest of the directive. */
3655: {
3656: efdr_t *save_file_ptr = cur_file_ptr;
3657: symint_t code;
3658: symint_t value;
3659: char *p;
3660: st_t st;
3661: sc_t sc;
3662: int ch;
3663:
3664: if (stabs_seen == 0)
3665: mark_stabs ("");
3666:
3667: /* Read code from stabs. */
3668: if (!isdigit (*rest))
3669: {
3670: error ("Invalid .stabs/.stabn directive, code is non-numeric");
3671: return;
3672: }
3673:
3674: code = strtol (rest, &p, 0);
3675:
3676: /* Line number stabs are handled differently, since they have two values,
3677: the line number and the address of the label. We use the index field
3678: (aka code) to hold the line number, and the value field to hold the
3679: address. The symbol type is st_Label, which should be different from
3680: the other stabs, so that gdb can recognize it. */
3681:
3682: if (code == (int)N_SLINE)
3683: {
3684: SYMR *sym_ptr, dummy_symr;
3685: shash_t *shash_ptr;
3686:
3687: /* Skip ,0, */
3688: if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !isdigit (p[3]))
3689: {
3690: error ("Invalid line number .stabs/.stabn directive");
3691: return;
3692: }
3693:
3694: code = strtol (p+3, &p, 0);
3695: ch = *++p;
3696: if (p[-1] != ',' || isdigit (ch) || !IS_ASM_IDENT (ch))
3697: {
3698: error ("Invalid line number .stabs/.stabn directive");
3699: return;
3700: }
3701:
3702: dummy_symr.index = code;
3703: if (dummy_symr.index != code)
3704: {
3705: error ("Line number (%d) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3706: code);
3707:
3708: return;
3709: }
3710:
3711: shash_ptr = hash_string (p,
3712: strlen (p) - 1,
3713: &orig_str_hash[0],
3714: (symint_t *)0);
3715:
3716: if (shash_ptr == (shash_t *)0
3717: || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *)0)
3718: {
3719: error ("Invalid .stabs/.stabn directive, value not found");
3720: return;
3721: }
3722:
3723: if ((st_t) sym_ptr->st != st_Label)
3724: {
3725: error ("Invalid line number .stabs/.stabn directive");
3726: return;
3727: }
3728:
3729: st = st_Label;
3730: sc = (sc_t) sym_ptr->sc;
3731: value = sym_ptr->value;
3732: }
3733: else
3734: {
3735: /* Skip ,<num>,<num>, */
3736: if (*p++ != ',')
3737: goto failure;
3738: for (; isdigit (*p); p++)
3739: ;
3740: if (*p++ != ',')
3741: goto failure;
3742: for (; isdigit (*p); p++)
3743: ;
3744: if (*p++ != ',')
3745: goto failure;
3746: ch = *p;
3747: if (!IS_ASM_IDENT (ch) && ch != '-')
3748: {
3749: failure:
3750: error ("Invalid .stabs/.stabn directive, bad character");
3751: return;
3752: }
3753:
3754: if (isdigit (ch) || ch == '-')
3755: {
3756: st = st_Nil;
3757: sc = sc_Nil;
3758: value = strtol (p, &p, 0);
3759: if (*p != '\n')
3760: {
3761: error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3762: return;
3763: }
3764: }
3765: else if (!IS_ASM_IDENT (ch))
3766: {
3767: error ("Invalid .stabs/.stabn directive, bad character");
3768: return;
3769: }
3770: else
3771: {
3772: SYMR *sym_ptr;
3773: shash_t *shash_ptr;
3774: const char *start, *end_p1;
3775:
3776: start = p;
3777: if ((end_p1 = strchr (start, '+')) == (char *)0)
3778: {
3779: if ((end_p1 = strchr (start, '-')) == (char *)0)
3780: end_p1 = start + strlen(start) - 1;
3781: }
3782:
3783: shash_ptr = hash_string (start,
3784: end_p1 - start,
3785: &orig_str_hash[0],
3786: (symint_t *)0);
3787:
3788: if (shash_ptr == (shash_t *)0
3789: || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *)0)
3790: {
3791: shash_ptr = hash_string (start,
3792: end_p1 - start,
3793: &ext_str_hash[0],
3794: (symint_t *)0);
3795:
3796: if (shash_ptr == (shash_t *)0
3797: || shash_ptr->esym_ptr == (EXTR *)0)
3798: {
3799: error ("Invalid .stabs/.stabn directive, value not found");
3800: return;
3801: }
3802: else
3803: sym_ptr = &(shash_ptr->esym_ptr->asym);
3804: }
3805:
3806: /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3807: if (code == (int)N_LBRAC || code == (int)N_RBRAC)
3808: {
3809: sc = scNil;
3810: st = stNil;
3811: }
3812: else
3813: {
3814: sc = (sc_t) sym_ptr->sc;
3815: st = (st_t) sym_ptr->st;
3816: }
3817: value = sym_ptr->value;
3818:
3819: ch = *end_p1++;
3820: if (ch != '\n')
3821: {
3822: if (((!isdigit (*end_p1)) && (*end_p1 != '-'))
3823: || ((ch != '+') && (ch != '-')))
3824: {
3825: error ("Invalid .stabs/.stabn directive, badly formed value");
3826: return;
3827: }
3828: if (ch == '+')
3829: value += strtol (end_p1, &p, 0);
3830: else if (ch == '-')
3831: value -= strtol (end_p1, &p, 0);
3832:
3833: if (*p != '\n')
3834: {
3835: error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3836: return;
3837: }
3838: }
3839: }
3840: code = MIPS_MARK_STAB(code);
3841: }
3842:
3843: (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3844: /* Restore normal file type. */
3845: cur_file_ptr = save_file_ptr;
3846: }
3847:
3848:
3849: STATIC void
3850: parse_stabs (start)
3851: const char *start; /* start of directive */
3852: {
3853: const char *end = local_index (start+1, '"');
3854:
3855: if (*start != '"' || end == (const char *)0 || end[1] != ',')
3856: {
3857: error ("Invalid .stabs directive, no string");
3858: return;
3859: }
3860:
3861: parse_stabs_common (start+1, end, end+2);
3862: }
3863:
3864:
3865: STATIC void
3866: parse_stabn (start)
3867: const char *start; /* start of directive */
3868: {
3869: parse_stabs_common ((const char *)0, (const char *)0, start);
3870: }
3871:
3872:
3873: /* Parse the input file, and write the lines to the output file
3874: if needed. */
3875:
3876: STATIC void
3877: parse_input __proto((void))
3878: {
3879: register char *p;
3880: register int i;
3881: register thead_t *ptag_head;
3882: register tag_t *ptag;
3883: register tag_t *ptag_next;
3884:
3885: if (debug)
3886: fprintf (stderr, "\tinput\n");
3887:
3888: /* Add a dummy scope block around the entire compilation unit for
3889: structures defined outside of blocks. */
3890: ptag_head = allocate_thead ();
3891: ptag_head->first_tag = 0;
3892: ptag_head->prev = cur_tag_head;
3893: cur_tag_head = ptag_head;
3894:
3895: while ((p = read_line ()) != (char *)0)
3896: {
3897: /* Skip leading blanks */
3898: while (isspace (*p))
3899: p++;
3900:
3901: /* See if it's a directive we handle. If so, dispatch handler. */
3902: for (i = 0; i < sizeof (pseudo_ops) / sizeof (pseudo_ops[0]); i++)
3903: if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3904: && isspace (p[pseudo_ops[i].len]))
3905: {
3906: p += pseudo_ops[i].len; /* skip to first argument */
3907: while (isspace (*p))
3908: p++;
3909:
3910: (*pseudo_ops[i].func)( p );
3911: break;
3912: }
3913: }
3914:
3915: /* Process any tags at global level. */
3916: ptag_head = cur_tag_head;
3917: cur_tag_head = ptag_head->prev;
3918:
3919: for (ptag = ptag_head->first_tag;
3920: ptag != (tag_t *)0;
3921: ptag = ptag_next)
3922: {
3923: if (ptag->forward_ref != (forward_t *)0)
3924: add_unknown_tag (ptag);
3925:
3926: ptag_next = ptag->same_block;
3927: ptag->hash_ptr->tag_ptr = ptag->same_name;
3928: free_tag (ptag);
3929: }
3930:
3931: free_thead (ptag_head);
3932:
3933: }
3934:
3935:
3936: /* Update the global headers with the final offsets in preparation
3937: to write out the .T file. */
3938:
3939: STATIC void
3940: update_headers __proto((void))
3941: {
3942: register symint_t i;
3943: register efdr_t *file_ptr;
3944:
3945: /* Set up the symbolic header. */
3946: file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3947: symbolic_header.magic = orig_sym_hdr.magic;
3948: symbolic_header.vstamp = orig_sym_hdr.vstamp;
3949:
3950: /* Set up global counts. */
3951: symbolic_header.issExtMax = ext_strings.num_allocated;
3952: symbolic_header.idnMax = dense_num.num_allocated;
3953: symbolic_header.ifdMax = file_desc.num_allocated;
3954: symbolic_header.iextMax = ext_symbols.num_allocated;
3955: symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3956: symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3957: symbolic_header.cbLine = orig_sym_hdr.cbLine;
3958: symbolic_header.crfd = orig_sym_hdr.crfd;
3959:
3960:
3961: /* Loop through each file, figuring out how many local syms,
3962: line numbers, etc. there are. Also, put out end symbol
3963: for the filename. */
3964:
3965: for (file_ptr = first_file;
3966: file_ptr != (efdr_t *)0;
3967: file_ptr = file_ptr->next_file)
3968: {
3969: cur_file_ptr = file_ptr;
3970: (void) add_local_symbol ((const char *)0, (const char *)0,
3971: st_End, sc_Text,
3972: (symint_t)0,
3973: (symint_t)0);
3974:
3975: file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3976: file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3977: symbolic_header.ipdMax += file_ptr->fdr.cpd;
3978:
3979: file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3980: file_ptr->fdr.isymBase = symbolic_header.isymMax;
3981: symbolic_header.isymMax += file_ptr->fdr.csym;
3982:
3983: file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3984: file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3985: symbolic_header.iauxMax += file_ptr->fdr.caux;
3986:
3987: file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
3988: file_ptr->fdr.issBase = symbolic_header.issMax;
3989: symbolic_header.issMax += file_ptr->fdr.cbSs;
3990: }
3991:
3992:
3993: i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
3994: if (i > 0)
3995: {
3996: symbolic_header.cbLineOffset = file_offset;
3997: file_offset += i;
3998: }
3999:
4000: i = symbolic_header.ioptMax; /* optimization symbols */
4001: if (((long) i) > 0)
4002: {
4003: symbolic_header.cbOptOffset = file_offset;
4004: file_offset += i * sizeof (OPTR);
4005: }
4006:
4007: i = symbolic_header.idnMax; /* dense numbers */
4008: if (i > 0)
4009: {
4010: symbolic_header.cbDnOffset = file_offset;
4011: file_offset += i * sizeof (DNR);
4012: }
4013:
4014: i = symbolic_header.ipdMax; /* procedure tables */
4015: if (i > 0)
4016: {
4017: symbolic_header.cbPdOffset = file_offset;
4018: file_offset += i * sizeof (PDR);
4019: }
4020:
4021: i = symbolic_header.isymMax; /* local symbols */
4022: if (i > 0)
4023: {
4024: symbolic_header.cbSymOffset = file_offset;
4025: file_offset += i * sizeof (SYMR);
4026: }
4027:
4028: i = symbolic_header.iauxMax; /* aux syms. */
4029: if (i > 0)
4030: {
4031: symbolic_header.cbAuxOffset = file_offset;
4032: file_offset += i * sizeof (TIR);
4033: }
4034:
4035: i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4036: if (i > 0)
4037: {
4038: symbolic_header.cbSsOffset = file_offset;
4039: file_offset += i;
4040: }
4041:
4042: i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4043: if (i > 0)
4044: {
4045: symbolic_header.cbSsExtOffset = file_offset;
4046: file_offset += i;
4047: }
4048:
4049: i = symbolic_header.ifdMax; /* file tables */
4050: if (i > 0)
4051: {
4052: symbolic_header.cbFdOffset = file_offset;
4053: file_offset += i * sizeof (FDR);
4054: }
4055:
4056: i = symbolic_header.crfd; /* relative file descriptors */
4057: if (i > 0)
4058: {
4059: symbolic_header.cbRfdOffset = file_offset;
4060: file_offset += i * sizeof (symint_t);
4061: }
4062:
4063: i = symbolic_header.iextMax; /* external symbols */
4064: if (i > 0)
4065: {
4066: symbolic_header.cbExtOffset = file_offset;
4067: file_offset += i * sizeof (EXTR);
4068: }
4069: }
4070:
4071:
4072: /* Write out a varray at a given location. */
4073:
4074: STATIC void
4075: write_varray (vp, offset, str)
4076: varray_t *vp; /* virtual array */
4077: off_t offset; /* offset to write varray to */
4078: const char *str; /* string to print out when tracing */
4079: {
4080: int num_write, sys_write;
4081: vlinks_t *ptr;
4082:
4083: if (vp->num_allocated == 0)
4084: return;
4085:
4086: if (debug)
4087: fprintf (stderr, "\twarray\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4088: vp, offset, vp->num_allocated * vp->object_size, str);
4089:
4090: if (file_offset != offset
4091: && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4092: pfatal_with_name (object_name);
4093:
4094: for (ptr = vp->first; ptr != (vlinks_t *)0; ptr = ptr->next)
4095: {
4096: num_write = (ptr->next == (vlinks_t *)0)
4097: ? vp->objects_last_page * vp->object_size
4098: : vp->objects_per_page * vp->object_size;
4099:
4100: sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
4101: if (sys_write <= 0)
4102: pfatal_with_name (object_name);
4103:
4104: else if (sys_write != num_write)
4105: fatal ("Wrote %d bytes to %s, system returned %d",
4106: num_write,
4107: object_name,
4108: sys_write);
4109:
4110: file_offset += num_write;
4111: }
4112: }
4113:
4114:
4115: /* Write out the symbol table in the object file. */
4116:
4117: STATIC void
4118: write_object __proto((void))
4119: {
4120: int sys_write;
4121: efdr_t *file_ptr;
4122: off_t offset;
4123:
4124: if (debug)
4125: fprintf (stderr, "\n\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4126: (PTR_T *) &symbolic_header, 0, sizeof (symbolic_header),
4127: "symbolic header");
4128:
4129: sys_write = fwrite ((PTR_T) &symbolic_header,
4130: 1,
4131: sizeof (symbolic_header),
4132: object_stream);
4133:
4134: if (sys_write < 0)
4135: pfatal_with_name (object_name);
4136:
4137: else if (sys_write != sizeof (symbolic_header))
4138: fatal ("Wrote %d bytes to %s, system returned %d",
4139: sizeof (symbolic_header),
4140: object_name,
4141: sys_write);
4142:
4143:
4144: file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4145:
4146: if (symbolic_header.cbLine > 0) /* line numbers */
4147: {
4148: long sys_write;
4149:
4150: if (file_offset != symbolic_header.cbLineOffset
4151: && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4152: pfatal_with_name (object_name);
4153:
4154: if (debug)
4155: fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4156: (PTR_T *) &orig_linenum, symbolic_header.cbLineOffset,
4157: symbolic_header.cbLine, "Line numbers");
4158:
4159: sys_write = fwrite ((PTR_T) orig_linenum,
4160: 1,
4161: symbolic_header.cbLine,
4162: object_stream);
4163:
4164: if (sys_write <= 0)
4165: pfatal_with_name (object_name);
4166:
4167: else if (sys_write != symbolic_header.cbLine)
4168: fatal ("Wrote %d bytes to %s, system returned %d",
4169: symbolic_header.cbLine,
4170: object_name,
4171: sys_write);
4172:
4173: file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4174: }
4175:
4176: if (symbolic_header.ioptMax > 0) /* optimization symbols */
4177: {
4178: long sys_write;
4179: long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4180:
4181: if (file_offset != symbolic_header.cbOptOffset
4182: && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4183: pfatal_with_name (object_name);
4184:
4185: if (debug)
4186: fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4187: (PTR_T *) &orig_opt_syms, symbolic_header.cbOptOffset,
4188: num_write, "Optimizer symbols");
4189:
4190: sys_write = fwrite ((PTR_T) orig_opt_syms,
4191: 1,
4192: num_write,
4193: object_stream);
4194:
4195: if (sys_write <= 0)
4196: pfatal_with_name (object_name);
4197:
4198: else if (sys_write != num_write)
4199: fatal ("Wrote %d bytes to %s, system returned %d",
4200: num_write,
4201: object_name,
4202: sys_write);
4203:
4204: file_offset = symbolic_header.cbOptOffset + num_write;
4205: }
4206:
4207: if (symbolic_header.idnMax > 0) /* dense numbers */
4208: write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4209:
4210: if (symbolic_header.ipdMax > 0) /* procedure tables */
4211: {
4212: offset = symbolic_header.cbPdOffset;
4213: for (file_ptr = first_file;
4214: file_ptr != (efdr_t *)0;
4215: file_ptr = file_ptr->next_file)
4216: {
4217: write_varray (&file_ptr->procs, offset, "Procedure tables");
4218: offset = file_offset;
4219: }
4220: }
4221:
4222: if (symbolic_header.isymMax > 0) /* local symbols */
4223: {
4224: offset = symbolic_header.cbSymOffset;
4225: for (file_ptr = first_file;
4226: file_ptr != (efdr_t *)0;
4227: file_ptr = file_ptr->next_file)
4228: {
4229: write_varray (&file_ptr->symbols, offset, "Local symbols");
4230: offset = file_offset;
4231: }
4232: }
4233:
4234: if (symbolic_header.iauxMax > 0) /* aux symbols */
4235: {
4236: offset = symbolic_header.cbAuxOffset;
4237: for (file_ptr = first_file;
4238: file_ptr != (efdr_t *)0;
4239: file_ptr = file_ptr->next_file)
4240: {
4241: write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4242: offset = file_offset;
4243: }
4244: }
4245:
4246: if (symbolic_header.issMax > 0) /* local strings */
4247: {
4248: offset = symbolic_header.cbSsOffset;
4249: for (file_ptr = first_file;
4250: file_ptr != (efdr_t *)0;
4251: file_ptr = file_ptr->next_file)
4252: {
4253: write_varray (&file_ptr->strings, offset, "Local strings");
4254: offset = file_offset;
4255: }
4256: }
4257:
4258: if (symbolic_header.issExtMax > 0) /* external strings */
4259: write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4260:
4261: if (symbolic_header.ifdMax > 0) /* file tables */
4262: {
4263: offset = symbolic_header.cbFdOffset;
4264: if (file_offset != offset
4265: && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4266: pfatal_with_name (object_name);
4267:
4268: file_offset = offset;
4269: for (file_ptr = first_file;
4270: file_ptr != (efdr_t *)0;
4271: file_ptr = file_ptr->next_file)
4272: {
4273: if (debug)
4274: fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4275: (PTR_T *) &file_ptr->fdr, file_offset, sizeof (FDR), "File header");
4276:
4277: sys_write = fwrite (&file_ptr->fdr,
4278: 1,
4279: sizeof (FDR),
4280: object_stream);
4281:
4282: if (sys_write < 0)
4283: pfatal_with_name (object_name);
4284:
4285: else if (sys_write != sizeof (FDR))
4286: fatal ("Wrote %d bytes to %s, system returned %d",
4287: sizeof (FDR),
4288: object_name,
4289: sys_write);
4290:
4291: file_offset = offset += sizeof (FDR);
4292: }
4293: }
4294:
4295: if (symbolic_header.crfd > 0) /* relative file descriptors */
4296: {
4297: long sys_write;
4298: symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4299:
4300: if (file_offset != symbolic_header.cbRfdOffset
4301: && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4302: pfatal_with_name (object_name);
4303:
4304: if (debug)
4305: fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4306: (PTR_T *) &orig_rfds, symbolic_header.cbRfdOffset,
4307: num_write, "Relative file descriptors");
4308:
4309: sys_write = fwrite (orig_rfds,
4310: 1,
4311: num_write,
4312: object_stream);
4313:
4314: if (sys_write <= 0)
4315: pfatal_with_name (object_name);
4316:
4317: else if (sys_write != num_write)
4318: fatal ("Wrote %d bytes to %s, system returned %d",
4319: num_write,
4320: object_name,
4321: sys_write);
4322:
4323: file_offset = symbolic_header.cbRfdOffset + num_write;
4324: }
4325:
4326: if (symbolic_header.issExtMax > 0) /* external symbols */
4327: write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4328:
4329: if (fclose (object_stream) != 0)
4330: pfatal_with_name (object_name);
4331: }
4332:
4333:
4334: /* Read some bytes at a specified location, and return a pointer. */
4335:
4336: STATIC page_t *
4337: read_seek (size, offset, str)
4338: Size_t size; /* # bytes to read */
4339: off_t offset; /* offset to read at */
4340: const char *str; /* name for tracing */
4341: {
4342: page_t *ptr;
4343: long sys_read = 0;
4344:
4345: if (size == 0) /* nothing to read */
4346: return (page_t *)0;
4347:
4348: if (debug)
4349: fprintf (stderr, "\trseek\tsize = %7u, offset = %7u, currently at %7u, %s\n",
4350: size, offset, file_offset, str);
4351:
4352: #ifndef MALLOC_CHECK
4353: ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4354: #else
4355: ptr = (page_t *) xcalloc (1, size);
4356: #endif
4357:
4358: /* If we need to seek, and the distance is nearby, just do some reads,
4359: to speed things up. */
4360: if (file_offset != offset)
4361: {
4362: symint_t difference = offset - file_offset;
4363:
4364: if (difference < 8)
4365: {
4366: char small_buffer[8];
4367:
4368: sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4369: if (sys_read <= 0)
4370: pfatal_with_name (obj_in_name);
4371:
4372: if (sys_read != difference)
4373: fatal ("Wanted to read %d bytes from %s, system returned %d",
4374: size,
4375: obj_in_name,
4376: sys_read);
4377: }
4378: else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4379: pfatal_with_name (obj_in_name);
4380: }
4381:
4382: sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
4383: if (sys_read <= 0)
4384: pfatal_with_name (obj_in_name);
4385:
4386: if (sys_read != size)
4387: fatal ("Wanted to read %d bytes from %s, system returned %d",
4388: size,
4389: obj_in_name,
4390: sys_read);
4391:
4392: file_offset = offset + size;
4393:
4394: if (file_offset > max_file_offset)
4395: max_file_offset = file_offset;
4396:
4397: return ptr;
4398: }
4399:
4400:
4401: /* Read the existing object file (and copy to the output object file
4402: if it is different from the input object file), and remove the old
4403: symbol table. */
4404:
4405: STATIC void
4406: copy_object __proto((void))
4407: {
4408: char buffer[ PAGE_SIZE ];
4409: register int sys_read;
4410: register int remaining;
4411: register int num_write;
4412: register int sys_write;
4413: register int fd, es;
4414: register int delete_ifd = 0;
4415: register int *remap_file_number;
4416: struct stat stat_buf;
4417:
4418: if (debug)
4419: fprintf (stderr, "\tcopy\n");
4420:
4421: if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4422: || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4423: pfatal_with_name (obj_in_name);
4424:
4425: sys_read = fread ((PTR_T) &orig_file_header,
4426: 1,
4427: sizeof (struct filehdr),
4428: obj_in_stream);
4429:
4430: if (sys_read < 0)
4431: pfatal_with_name (obj_in_name);
4432:
4433: else if (sys_read == 0 && feof (obj_in_stream))
4434: return; /* create a .T file sans file header */
4435:
4436: else if (sys_read < sizeof (struct filehdr))
4437: fatal ("Wanted to read %d bytes from %s, system returned %d",
4438: sizeof (struct filehdr),
4439: obj_in_name,
4440: sys_read);
4441:
4442:
4443: if (orig_file_header.f_nsyms != sizeof (HDRR))
4444: fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
4445: input_name, orig_file_header.f_nsyms, sizeof (HDRR));
4446:
4447:
4448: /* Read in the current symbolic header. */
4449: if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4450: pfatal_with_name (input_name);
4451:
4452: sys_read = fread ((PTR_T) &orig_sym_hdr,
4453: 1,
4454: sizeof (orig_sym_hdr),
4455: obj_in_stream);
4456:
4457: if (sys_read < 0)
4458: pfatal_with_name (object_name);
4459:
4460: else if (sys_read < sizeof (struct filehdr))
4461: fatal ("Wanted to read %d bytes from %s, system returned %d",
4462: sizeof (struct filehdr),
4463: obj_in_name,
4464: sys_read);
4465:
4466:
4467: /* Read in each of the sections if they exist in the object file.
4468: We read things in in the order the mips assembler creates the
4469: sections, so in theory no extra seeks are done.
4470:
4471: For simplicity sake, round each read up to a page boundary,
4472: we may want to revisit this later.... */
4473:
4474: file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4475:
4476: if (orig_sym_hdr.cbLine > 0) /* line numbers */
4477: orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4478: orig_sym_hdr.cbLineOffset,
4479: "Line numbers");
4480:
4481: if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4482: orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4483: orig_sym_hdr.cbPdOffset,
4484: "Procedure tables");
4485:
4486: if (orig_sym_hdr.isymMax > 0) /* local symbols */
4487: orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4488: orig_sym_hdr.cbSymOffset,
4489: "Local symbols");
4490:
4491: if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4492: orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4493: orig_sym_hdr.cbAuxOffset,
4494: "Aux. symbols");
4495:
4496: if (orig_sym_hdr.issMax > 0) /* local strings */
4497: orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4498: orig_sym_hdr.cbSsOffset,
4499: "Local strings");
4500:
4501: if (orig_sym_hdr.issExtMax > 0) /* external strings */
4502: orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4503: orig_sym_hdr.cbSsExtOffset,
4504: "External strings");
4505:
4506: if (orig_sym_hdr.ifdMax > 0) /* file tables */
4507: orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4508: orig_sym_hdr.cbFdOffset,
4509: "File tables");
4510:
4511: if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4512: orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4513: orig_sym_hdr.cbRfdOffset,
4514: "Relative file descriptors");
4515:
4516: if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4517: orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4518: orig_sym_hdr.cbExtOffset,
4519: "External symbols");
4520:
4521: if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4522: {
4523: orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4524: orig_sym_hdr.cbDnOffset,
4525: "Dense numbers");
4526:
4527: add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4528: }
4529:
4530: if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4531: orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4532: orig_sym_hdr.cbOptOffset,
4533: "Optimizer symbols");
4534:
4535:
4536:
4537: /* Abort if the symbol table is not last. */
4538: if (max_file_offset != stat_buf.st_size)
4539: fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4540: max_file_offset,
4541: stat_buf.st_size);
4542:
4543:
4544: /* If the first original file descriptor is a dummy which the assembler
4545: put out, but there are no symbols in it, skip it now. */
4546: if (orig_sym_hdr.ifdMax > 1
4547: && orig_files->csym == 2
4548: && orig_files->caux == 0)
4549: {
4550: char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4551: char *suffix = local_rindex (filename, '.');
4552:
4553: if (suffix != (char *)0 && strcmp (suffix, ".s") == 0)
4554: delete_ifd = 1;
4555: }
4556:
4557:
4558: /* Create array to map original file numbers to the new file numbers
4559: (in case there are duplicate filenames, we collapse them into one
4560: file section, the MIPS assembler may or may not collapse them). */
4561:
4562: remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4563:
4564: for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4565: {
4566: register FDR *fd_ptr = ORIG_FILES (fd);
4567: register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4568:
4569: /* file support itself. */
4570: add_file (filename, filename + strlen (filename));
4571: remap_file_number[fd] = cur_file_ptr->file_index;
4572: }
4573:
4574: if (delete_ifd > 0) /* just in case */
4575: remap_file_number[0] = remap_file_number[1];
4576:
4577:
4578: /* Loop, adding each of the external symbols. These must be in
4579: order or otherwise we would have to change the relocation
4580: entries. We don't just call add_bytes, because we need to have
4581: the names put into the external hash table. We set the type to
4582: 'void' for now, and parse_def will fill in the correct type if it
4583: is in the symbol table. We must add the external symbols before
4584: the locals, since the locals do lookups against the externals. */
4585:
4586: if (debug)
4587: fprintf (stderr, "\tehash\n");
4588:
4589: for (es = 0; es < orig_sym_hdr.iextMax; es++)
4590: {
4591: register EXTR *eptr = orig_ext_syms + es;
4592: register char *ename = ORIG_ESTRS (eptr->asym.iss);
4593: register unsigned ifd = eptr->ifd;
4594:
4595: (void) add_ext_symbol (ename,
4596: ename + strlen (ename),
4597: (st_t) eptr->asym.st,
4598: (sc_t) eptr->asym.sc,
4599: eptr->asym.value,
4600: (symint_t)((eptr->asym.index == indexNil) ? indexNil : 0),
4601: (ifd < orig_sym_hdr.ifdMax) ? remap_file_number[ ifd ] : ifd);
4602: }
4603:
4604:
4605: /* For each of the files in the object file, copy the symbols, and such
4606: into the varrays for the new object file. */
4607:
4608: for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4609: {
4610: register FDR *fd_ptr = ORIG_FILES (fd);
4611: register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4612: register SYMR *sym_start;
4613: register SYMR *sym;
4614: register SYMR *sym_end_p1;
4615: register PDR *proc_start;
4616: register PDR *proc;
4617: register PDR *proc_end_p1;
4618:
4619: /* file support itself. */
4620: add_file (filename, filename + strlen (filename));
4621: cur_file_ptr->orig_fdr = fd_ptr;
4622:
4623: /* Copy stuff that's just passed through (such as line #'s) */
4624: cur_file_ptr->fdr.adr = fd_ptr->adr;
4625: cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4626: cur_file_ptr->fdr.cline = fd_ptr->cline;
4627: cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4628: cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4629: cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4630: cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4631: cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4632: cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4633: cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4634:
4635: if (debug)
4636: fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4637:
4638: /* For each of the static and global symbols defined, add them
4639: to the hash table of original symbols, so we can look up
4640: their values. */
4641:
4642: sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4643: sym_end_p1 = sym_start + fd_ptr->csym;
4644: for (sym = sym_start; sym < sym_end_p1; sym++)
4645: {
4646: switch ((st_t) sym->st)
4647: {
4648: default:
4649: break;
4650:
4651: case st_Global:
4652: case st_Static:
4653: case st_Label:
4654: case st_Proc:
4655: case st_StaticProc:
4656: {
4657: auto symint_t hash_index;
4658: register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4659: register Size_t len = strlen (str);
4660: register shash_t *shash_ptr = hash_string (str,
4661: (Ptrdiff_t)len,
4662: &orig_str_hash[0],
4663: &hash_index);
4664:
4665: if (shash_ptr != (shash_t *)0)
4666: error ("internal error, %s is already in original symbol table", str);
4667:
4668: else
4669: {
4670: shash_ptr = allocate_shash ();
4671: shash_ptr->next = orig_str_hash[hash_index];
4672: orig_str_hash[hash_index] = shash_ptr;
4673:
4674: shash_ptr->len = len;
4675: shash_ptr->indx = indexNil;
4676: shash_ptr->string = str;
4677: shash_ptr->sym_ptr = sym;
4678: }
4679: }
4680: break;
4681:
4682: case st_End:
4683: if ((sc_t) sym->sc == sc_Text)
4684: {
4685: register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4686:
4687: if (*str != '\0')
4688: {
4689: register Size_t len = strlen (str);
4690: register shash_t *shash_ptr = hash_string (str,
4691: (Ptrdiff_t)len,
4692: &orig_str_hash[0],
4693: (symint_t *)0);
4694:
4695: if (shash_ptr != (shash_t *)0)
4696: shash_ptr->end_ptr = sym;
4697: }
4698: }
4699: break;
4700:
4701: }
4702: }
4703:
4704: if (debug)
4705: {
4706: fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4707: fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4708: }
4709:
4710: /* Go through each of the procedures in this file, and add the
4711: procedure pointer to the hash entry for the given name. */
4712:
4713: proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4714: proc_end_p1 = proc_start + fd_ptr->cpd;
4715: for (proc = proc_start; proc < proc_end_p1; proc++)
4716: {
4717: register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4718: register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4719: register Size_t len = strlen (str);
4720: register shash_t *shash_ptr = hash_string (str,
4721: (Ptrdiff_t)len,
4722: &orig_str_hash[0],
4723: (symint_t *)0);
4724:
4725: if (shash_ptr == (shash_t *)0)
4726: error ("internal error, function %s is not in original symbol table", str);
4727:
4728: else
4729: shash_ptr->proc_ptr = proc;
4730: }
4731:
4732: if (debug)
4733: fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4734:
4735: }
4736: cur_file_ptr = first_file;
4737:
4738:
4739: /* Copy all of the object file up to the symbol table. Originally
4740: we were going to use ftruncate, but that doesn't seem to work
4741: on Ultrix 3.1.... */
4742:
4743: if (fseek (obj_in_stream, (long)0, SEEK_SET) != 0)
4744: pfatal_with_name (obj_in_name);
4745:
4746: if (fseek (object_stream, (long)0, SEEK_SET) != 0)
4747: pfatal_with_name (object_name);
4748:
4749: for (remaining = orig_file_header.f_symptr;
4750: remaining > 0;
4751: remaining -= num_write)
4752: {
4753: num_write = (remaining <= sizeof (buffer)) ? remaining : sizeof (buffer);
4754: sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
4755: if (sys_read <= 0)
4756: pfatal_with_name (obj_in_name);
4757:
4758: else if (sys_read != num_write)
4759: fatal ("Wanted to read %d bytes from %s, system returned %d",
4760: num_write,
4761: obj_in_name,
4762: sys_read);
4763:
4764: sys_write = fwrite (buffer, 1, num_write, object_stream);
4765: if (sys_write <= 0)
4766: pfatal_with_name (object_name);
4767:
4768: else if (sys_write != num_write)
4769: fatal ("Wrote %d bytes to %s, system returned %d",
4770: num_write,
4771: object_name,
4772: sys_write);
4773: }
4774: }
4775:
4776:
4777: /* Ye olde main program. */
4778:
4779: int
4780: main (argc, argv)
4781: int argc;
4782: char *argv[];
4783: {
4784: int iflag = 0;
4785: char *p = local_rindex (argv[0], '/');
4786: char *num_end;
4787: int option;
4788: int i;
4789:
4790: progname = (p != 0) ? p+1 : argv[0];
4791:
4792: (void) signal (SIGSEGV, catch_signal);
4793: (void) signal (SIGBUS, catch_signal);
4794: (void) signal (SIGABRT, catch_signal);
4795:
4796: #if !defined(__SABER__) && !defined(lint)
4797: if (sizeof (efdr_t) > PAGE_USIZE)
4798: fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4799: sizeof (efdr_t),
4800: PAGE_USIZE);
4801:
4802: if (sizeof (page_t) != PAGE_USIZE)
4803: fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4804: sizeof (page_t),
4805: PAGE_USIZE);
4806:
4807: #endif
4808:
4809: alloc_counts[ alloc_type_none ].alloc_name = "none";
4810: alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4811: alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4812: alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4813: alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4814: alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4815: alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4816: alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4817: alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4818:
4819: int_type_info = type_info_init;
4820: int_type_info.basic_type = bt_Int;
4821:
4822: void_type_info = type_info_init;
4823: void_type_info.basic_type = bt_Void;
4824:
4825: while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4826: switch (option)
4827: {
4828: default:
4829: had_errors++;
4830: break;
4831:
4832: case 'd':
4833: debug = strtol (optarg, &num_end, 0);
4834: if ((unsigned)debug > 4 || num_end == optarg)
4835: had_errors++;
4836:
4837: break;
4838:
4839: case 'I':
4840: if (rename_output || obj_in_name != (char *)0)
4841: had_errors++;
4842: else
4843: rename_output = 1;
4844:
4845: /* fall through to 'i' case. */
4846:
4847: case 'i':
4848: if (obj_in_name == (char *)0)
4849: {
4850: obj_in_name = optarg;
4851: iflag++;
4852: }
4853: else
4854: had_errors++;
4855: break;
4856:
4857: case 'o':
4858: if (object_name == (char *)0)
4859: object_name = optarg;
4860: else
4861: had_errors++;
4862: break;
4863:
4864: case 'v':
4865: version++;
4866: break;
4867: }
4868:
4869: if (obj_in_name == (char *)0 && optind <= argc - 2)
4870: obj_in_name = argv[--argc];
4871:
4872: if (object_name == (char *)0 && optind <= argc - 2)
4873: object_name = argv[--argc];
4874:
4875: /* If there is an output name, but no input name use
4876: the same file for both, deleting the name between
4877: opening it for input and opening it for output. */
4878: if (obj_in_name == (char *)0 && object_name != (char *)0)
4879: {
4880: obj_in_name = object_name;
4881: delete_input = 1;
4882: }
4883:
4884: if (object_name == (char *)0 || had_errors || optind != argc - 1)
4885: {
4886: fprintf (stderr, "Calling Sequence:\n");
4887: fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4888: fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4889: fprintf (stderr, "\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n");
4890: fprintf (stderr, "\n");
4891: fprintf (stderr, "Debug levels are:\n");
4892: fprintf (stderr, " 1\tGeneral debug + trace functions/blocks.\n");
4893: fprintf (stderr, " 2\tDebug level 1 + trace externals.\n");
4894: fprintf (stderr, " 3\tDebug level 2 + trace all symbols.\n");
4895: fprintf (stderr, " 4\tDebug level 3 + trace memory allocations.\n");
4896: return 1;
4897: }
4898:
4899:
4900: if (version)
4901: {
4902: fprintf (stderr, "mips-tfile version %s", version_string);
4903: #ifdef TARGET_VERSION
4904: TARGET_VERSION;
4905: #endif
4906: fputc ('\n', stderr);
4907: }
4908:
4909: if (obj_in_name == (char *)0)
4910: obj_in_name = object_name;
4911:
4912: if (rename_output && rename (object_name, obj_in_name) != 0)
4913: {
4914: char *buffer = (char *) allocate_multiple_pages (4);
4915: int len;
4916: int len2;
4917: int in_fd;
4918: int out_fd;
4919:
4920: /* Rename failed, copy input file */
4921: in_fd = open (object_name, O_RDONLY, 0666);
4922: if (in_fd < 0)
4923: pfatal_with_name (object_name);
4924:
4925: out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4926: if (out_fd < 0)
4927: pfatal_with_name (obj_in_name);
4928:
4929: while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4930: {
4931: len2 = write (out_fd, buffer, len);
4932: if (len2 < 0)
4933: pfatal_with_name (object_name);
4934:
4935: if (len != len2)
4936: fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4937: }
4938:
4939: free_multiple_pages ((page_t *)buffer, 4);
4940:
4941: if (len < 0)
4942: pfatal_with_name (object_name);
4943:
4944: if (close (in_fd) < 0)
4945: pfatal_with_name (object_name);
4946:
4947: if (close (out_fd) < 0)
4948: pfatal_with_name (obj_in_name);
4949: }
4950:
4951: /* Must open input before output, since the output may be the same file, and
4952: we need to get the input handle before truncating it. */
4953: obj_in_stream = fopen (obj_in_name, "r");
4954: if (obj_in_stream == (FILE *)0)
4955: pfatal_with_name (obj_in_name);
4956:
4957: if (delete_input && unlink (obj_in_name) != 0)
4958: pfatal_with_name (obj_in_name);
4959:
4960: object_stream = fopen (object_name, "w");
4961: if (object_stream == (FILE *)0)
4962: pfatal_with_name (object_name);
4963:
4964: if (strcmp (argv[optind], "-") != 0)
4965: {
4966: input_name = argv[optind];
4967: if (freopen (argv[optind], "r", stdin) != stdin)
4968: pfatal_with_name (argv[optind]);
4969: }
4970:
4971: copy_object (); /* scan & copy object file */
4972: parse_input (); /* scan all of input */
4973:
4974: update_headers (); /* write out tfile */
4975: write_object ();
4976:
4977: if (debug)
4978: {
4979: fprintf (stderr, "\n\tAllocation summary:\n\n");
4980: for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
4981: if (alloc_counts[i].total_alloc)
4982: {
4983: fprintf (stderr,
4984: "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
4985: alloc_counts[i].alloc_name,
4986: alloc_counts[i].total_alloc,
4987: alloc_counts[i].total_free,
4988: alloc_counts[i].total_pages);
4989: }
4990: }
4991:
4992: return (had_errors) ? 1 : 0;
4993: }
4994:
4995:
4996: /* Catch a signal and exit without dumping core. */
4997:
4998: STATIC void
4999: catch_signal (signum)
5000: int signum;
5001: {
5002: (void) signal (signum, SIG_DFL); /* just in case... */
5003: fatal (sys_siglist[signum]);
5004: }
5005:
5006: /* Print a fatal error message. NAME is the text.
5007: Also include a system error message based on `errno'. */
5008:
5009: void
5010: pfatal_with_name (msg)
5011: char *msg;
5012: {
5013: int save_errno = errno; /* just in case.... */
5014: if (line_number > 0)
5015: fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5016: else
5017: fprintf (stderr, "%s:", progname);
5018:
5019: errno = save_errno;
5020: if (errno == 0)
5021: fprintf (stderr, "[errno = 0] %s\n", msg);
5022: else
5023: perror (msg);
5024:
5025: exit (1);
5026: }
5027:
5028:
5029: /* Procedure to abort with an out of bounds error message. It has
5030: type int, so it can be used with an ?: expression within the
5031: ORIG_xxx macros, but the function never returns. */
5032:
5033: static int
5034: out_of_bounds (indx, max, str, prog_line)
5035: symint_t indx; /* index that is out of bounds */
5036: symint_t max; /* maximum index */
5037: const char *str; /* string to print out */
5038: int prog_line; /* line number within mips-tfile.c */
5039: {
5040: if (indx < max) /* just in case */
5041: return 0;
5042:
5043: fprintf (stderr, "%s, %s:%ld index %u is out of bounds for %s, max is %u, mips-tfile.c line# %d\n",
5044: progname, input_name, line_number, indx, str, max, prog_line);
5045:
5046: exit (1);
5047: return 0; /* turn off warning messages */
5048: }
5049:
5050:
5051: /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5052: like sbrk's behind it's back (or sbrk isn't available). If we use
5053: sbrk, we assume it gives us zeroed pages. */
5054:
5055: #ifndef MALLOC_CHECK
5056: #ifdef USE_MALLOC
5057:
5058: STATIC page_t *
5059: allocate_cluster (npages)
5060: Size_t npages;
5061: {
5062: register page_t *value = (page_t *) calloc (npages, PAGE_USIZE);
5063:
5064: if (value == 0)
5065: fatal ("Virtual memory exhausted.");
5066:
5067: if (debug > 3)
5068: fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5069:
5070: return value;
5071: }
5072:
5073: #else /* USE_MALLOC */
5074:
5075: STATIC page_t *
5076: allocate_cluster (npages)
5077: Size_t npages;
5078: {
5079: register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5080: unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5081:
5082: if (offset != 0) /* align to a page boundary */
5083: {
5084: if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5085: pfatal_with_name ("allocate_cluster");
5086:
5087: ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5088: }
5089:
5090: if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5091: pfatal_with_name ("allocate_cluster");
5092:
5093: if (debug > 3)
5094: fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, ptr);
5095:
5096: return ptr;
5097: }
5098:
5099: #endif /* USE_MALLOC */
5100:
5101:
5102: static page_t *cluster_ptr = NULL;
5103: static unsigned pages_left = 0;
5104:
5105: #endif /* MALLOC_CHECK */
5106:
5107:
5108: /* Allocate some pages (which is initialized to 0). */
5109:
5110: STATIC page_t *
5111: allocate_multiple_pages (npages)
5112: Size_t npages;
5113: {
5114: #ifndef MALLOC_CHECK
5115: if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5116: {
5117: pages_left = MAX_CLUSTER_PAGES;
5118: cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5119: }
5120:
5121: if (npages <= pages_left)
5122: {
5123: page_t *ptr = cluster_ptr;
5124: cluster_ptr += npages;
5125: pages_left -= npages;
5126: return ptr;
5127: }
5128:
5129: return allocate_cluster (npages);
5130:
5131: #else /* MALLOC_CHECK */
5132: return (page_t *) xcalloc (npages, PAGE_SIZE);
5133:
5134: #endif /* MALLOC_CHECK */
5135: }
5136:
5137:
5138: /* Release some pages. */
5139:
5140: STATIC void
5141: free_multiple_pages (page_ptr, npages)
5142: page_t *page_ptr;
5143: Size_t npages;
5144: {
5145: #ifndef MALLOC_CHECK
5146: if (pages_left == 0)
5147: {
5148: cluster_ptr = page_ptr;
5149: pages_left = npages;
5150: }
5151:
5152: else if ((page_ptr + npages) == cluster_ptr)
5153: {
5154: cluster_ptr -= npages;
5155: pages_left += npages;
5156: }
5157:
5158: /* otherwise the page is not freed. If more than call is
5159: done, we probably should worry about it, but at present,
5160: the free pages is done right after an allocate. */
5161:
5162: #else /* MALLOC_CHECK */
5163: free ((char *) page_ptr);
5164:
5165: #endif /* MALLOC_CHECK */
5166: }
5167:
5168:
5169: /* Allocate one page (which is initialized to 0). */
5170:
5171: STATIC page_t *
5172: allocate_page __proto((void))
5173: {
5174: #ifndef MALLOC_CHECK
5175: if (pages_left == 0)
5176: {
5177: pages_left = MAX_CLUSTER_PAGES;
5178: cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5179: }
5180:
5181: pages_left--;
5182: return cluster_ptr++;
5183:
5184: #else /* MALLOC_CHECK */
5185: return (page_t *) xcalloc (1, PAGE_SIZE);
5186:
5187: #endif /* MALLOC_CHECK */
5188: }
5189:
5190:
5191: /* Allocate scoping information. */
5192:
5193: STATIC scope_t *
5194: allocate_scope __proto((void))
5195: {
5196: register scope_t *ptr;
5197: static scope_t initial_scope;
5198:
5199: #ifndef MALLOC_CHECK
5200: ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5201: if (ptr != (scope_t *)0)
5202: alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5203:
5204: else
5205: {
5206: register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5207: register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5208:
5209: if (unallocated == 0)
5210: {
5211: unallocated = PAGE_SIZE / sizeof (scope_t);
5212: alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5213: alloc_counts[ (int)alloc_type_scope ].total_pages++;
5214: }
5215:
5216: ptr = &cur_page->scope[ --unallocated ];
5217: alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5218: }
5219:
5220: #else
5221: ptr = (scope_t *) xmalloc (sizeof (scope_t));
5222:
5223: #endif
5224:
5225: alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5226: *ptr = initial_scope;
5227: return ptr;
5228: }
5229:
5230: /* Free scoping information. */
5231:
5232: STATIC void
5233: free_scope (ptr)
5234: scope_t *ptr;
5235: {
5236: alloc_counts[ (int)alloc_type_scope ].total_free++;
5237:
5238: #ifndef MALLOC_CHECK
5239: ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5240: alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5241:
5242: #else
5243: xfree ((PTR_T) ptr);
5244: #endif
5245:
5246: }
5247:
5248:
5249: /* Allocate links for pages in a virtual array. */
5250:
5251: STATIC vlinks_t *
5252: allocate_vlinks __proto((void))
5253: {
5254: register vlinks_t *ptr;
5255: static vlinks_t initial_vlinks;
5256:
5257: #ifndef MALLOC_CHECK
5258: register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5259: register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5260:
5261: if (unallocated == 0)
5262: {
5263: unallocated = PAGE_SIZE / sizeof (vlinks_t);
5264: alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5265: alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5266: }
5267:
5268: ptr = &cur_page->vlinks[ --unallocated ];
5269: alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5270:
5271: #else
5272: ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5273:
5274: #endif
5275:
5276: alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5277: *ptr = initial_vlinks;
5278: return ptr;
5279: }
5280:
5281:
5282: /* Allocate string hash buckets. */
5283:
5284: STATIC shash_t *
5285: allocate_shash __proto((void))
5286: {
5287: register shash_t *ptr;
5288: static shash_t initial_shash;
5289:
5290: #ifndef MALLOC_CHECK
5291: register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5292: register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5293:
5294: if (unallocated == 0)
5295: {
5296: unallocated = PAGE_SIZE / sizeof (shash_t);
5297: alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5298: alloc_counts[ (int)alloc_type_shash ].total_pages++;
5299: }
5300:
5301: ptr = &cur_page->shash[ --unallocated ];
5302: alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5303:
5304: #else
5305: ptr = (shash_t *) xmalloc (sizeof (shash_t));
5306:
5307: #endif
5308:
5309: alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5310: *ptr = initial_shash;
5311: return ptr;
5312: }
5313:
5314:
5315: /* Allocate type hash buckets. */
5316:
5317: STATIC thash_t *
5318: allocate_thash __proto((void))
5319: {
5320: register thash_t *ptr;
5321: static thash_t initial_thash;
5322:
5323: #ifndef MALLOC_CHECK
5324: register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5325: register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5326:
5327: if (unallocated == 0)
5328: {
5329: unallocated = PAGE_SIZE / sizeof (thash_t);
5330: alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5331: alloc_counts[ (int)alloc_type_thash ].total_pages++;
5332: }
5333:
5334: ptr = &cur_page->thash[ --unallocated ];
5335: alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5336:
5337: #else
5338: ptr = (thash_t *) xmalloc (sizeof (thash_t));
5339:
5340: #endif
5341:
5342: alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5343: *ptr = initial_thash;
5344: return ptr;
5345: }
5346:
5347:
5348: /* Allocate structure, union, or enum tag information. */
5349:
5350: STATIC tag_t *
5351: allocate_tag __proto((void))
5352: {
5353: register tag_t *ptr;
5354: static tag_t initial_tag;
5355:
5356: #ifndef MALLOC_CHECK
5357: ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5358: if (ptr != (tag_t *)0)
5359: alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5360:
5361: else
5362: {
5363: register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5364: register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5365:
5366: if (unallocated == 0)
5367: {
5368: unallocated = PAGE_SIZE / sizeof (tag_t);
5369: alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5370: alloc_counts[ (int)alloc_type_tag ].total_pages++;
5371: }
5372:
5373: ptr = &cur_page->tag[ --unallocated ];
5374: alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5375: }
5376:
5377: #else
5378: ptr = (tag_t *) xmalloc (sizeof (tag_t));
5379:
5380: #endif
5381:
5382: alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5383: *ptr = initial_tag;
5384: return ptr;
5385: }
5386:
5387: /* Free scoping information. */
5388:
5389: STATIC void
5390: free_tag (ptr)
5391: tag_t *ptr;
5392: {
5393: alloc_counts[ (int)alloc_type_tag ].total_free++;
5394:
5395: #ifndef MALLOC_CHECK
5396: ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5397: alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5398:
5399: #else
5400: xfree ((PTR_T) ptr);
5401: #endif
5402:
5403: }
5404:
5405:
5406: /* Allocate forward reference to a yet unknown tag. */
5407:
5408: STATIC forward_t *
5409: allocate_forward __proto((void))
5410: {
5411: register forward_t *ptr;
5412: static forward_t initial_forward;
5413:
5414: #ifndef MALLOC_CHECK
5415: ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5416: if (ptr != (forward_t *)0)
5417: alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5418:
5419: else
5420: {
5421: register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5422: register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5423:
5424: if (unallocated == 0)
5425: {
5426: unallocated = PAGE_SIZE / sizeof (forward_t);
5427: alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5428: alloc_counts[ (int)alloc_type_forward ].total_pages++;
5429: }
5430:
5431: ptr = &cur_page->forward[ --unallocated ];
5432: alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5433: }
5434:
5435: #else
5436: ptr = (forward_t *) xmalloc (sizeof (forward_t));
5437:
5438: #endif
5439:
5440: alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5441: *ptr = initial_forward;
5442: return ptr;
5443: }
5444:
5445: /* Free scoping information. */
5446:
5447: STATIC void
5448: free_forward (ptr)
5449: forward_t *ptr;
5450: {
5451: alloc_counts[ (int)alloc_type_forward ].total_free++;
5452:
5453: #ifndef MALLOC_CHECK
5454: ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5455: alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5456:
5457: #else
5458: xfree ((PTR_T) ptr);
5459: #endif
5460:
5461: }
5462:
5463:
5464: /* Allocate head of type hash list. */
5465:
5466: STATIC thead_t *
5467: allocate_thead __proto((void))
5468: {
5469: register thead_t *ptr;
5470: static thead_t initial_thead;
5471:
5472: #ifndef MALLOC_CHECK
5473: ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5474: if (ptr != (thead_t *)0)
5475: alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5476:
5477: else
5478: {
5479: register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5480: register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5481:
5482: if (unallocated == 0)
5483: {
5484: unallocated = PAGE_SIZE / sizeof (thead_t);
5485: alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5486: alloc_counts[ (int)alloc_type_thead ].total_pages++;
5487: }
5488:
5489: ptr = &cur_page->thead[ --unallocated ];
5490: alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5491: }
5492:
5493: #else
5494: ptr = (thead_t *) xmalloc (sizeof (thead_t));
5495:
5496: #endif
5497:
5498: alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5499: *ptr = initial_thead;
5500: return ptr;
5501: }
5502:
5503: /* Free scoping information. */
5504:
5505: STATIC void
5506: free_thead (ptr)
5507: thead_t *ptr;
5508: {
5509: alloc_counts[ (int)alloc_type_thead ].total_free++;
5510:
5511: #ifndef MALLOC_CHECK
5512: ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5513: alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5514:
5515: #else
5516: xfree ((PTR_T) ptr);
5517: #endif
5518:
5519: }
5520:
5521: #endif /* MIPS_DEBUGGING_INFO */
5522:
5523:
5524: /* Output an error message and exit */
5525:
5526: /*VARARGS*/
5527: void
5528: fatal (va_alist)
5529: va_dcl
5530: {
5531: va_list ap;
5532: char *format;
5533:
5534: if (line_number > 0)
5535: fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5536: else
5537: fprintf (stderr, "%s:", progname);
5538:
5539: va_start(ap);
5540: format = va_arg (ap, char *);
5541: vfprintf (stderr, format, ap);
5542: va_end (ap);
5543: fprintf (stderr, "\n");
5544: if (line_number > 0)
5545: fprintf (stderr, "line:\t%s\n", cur_line_start);
5546:
5547: saber_stop ();
5548: exit (1);
5549: }
5550:
5551: /*VARARGS*/
5552: void
5553: error (va_alist)
5554: va_dcl
5555: {
5556: va_list ap;
5557: char *format;
5558:
5559: if (line_number > 0)
5560: fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5561: else
5562: fprintf (stderr, "%s:", progname);
5563:
5564: va_start(ap);
5565: format = va_arg (ap, char *);
5566: vfprintf (stderr, format, ap);
5567: fprintf (stderr, "\n");
5568: if (line_number > 0)
5569: fprintf (stderr, "line:\t%s\n", cur_line_start);
5570:
5571: had_errors++;
5572: va_end (ap);
5573:
5574: saber_stop ();
5575: }
5576:
5577: /* More 'friendly' abort that prints the line and file.
5578: config.h can #define abort fancy_abort if you like that sort of thing. */
5579:
5580: void
5581: fancy_abort ()
5582: {
5583: fatal ("Internal abort.");
5584: }
5585:
5586:
5587: /* When `malloc.c' is compiled with `rcheck' defined,
5588: it calls this function to report clobberage. */
5589:
5590: void
5591: botch (s)
5592: const char *s;
5593: {
5594: fatal (s);
5595: }
5596:
5597: /* Same as `malloc' but report error if no memory available. */
5598:
5599: PTR_T
5600: xmalloc (size)
5601: Size_t size;
5602: {
5603: register PTR_T value = malloc (size);
5604: if (value == 0)
5605: fatal ("Virtual memory exhausted.");
5606:
5607: if (debug > 3)
5608: fprintf (stderr, "\tmalloc\tptr = 0x%.8x, size = %10u\n", value, size);
5609:
5610: return value;
5611: }
5612:
5613: /* Same as `calloc' but report error if no memory available. */
5614:
5615: PTR_T
5616: xcalloc (size1, size2)
5617: Size_t size1, size2;
5618: {
5619: register PTR_T value = calloc (size1, size2);
5620: if (value == 0)
5621: fatal ("Virtual memory exhausted.");
5622:
5623: if (debug > 3)
5624: fprintf (stderr, "\tcalloc\tptr = 0x%.8x, size1 = %10u, size2 = %10u [%u]\n",
5625: value, size1, size2, size1+size2);
5626:
5627: return value;
5628: }
5629:
5630: /* Same as `realloc' but report error if no memory available. */
5631:
5632: PTR_T
5633: xrealloc (ptr, size)
5634: PTR_T ptr;
5635: Size_t size;
5636: {
5637: register PTR_T result = realloc (ptr, size);
5638: if (!result)
5639: fatal ("Virtual memory exhausted.");
5640:
5641: if (debug > 3)
5642: fprintf (stderr, "\trealloc\tptr = 0x%.8x, size = %10u, orig = 0x%.8x\n",
5643: result, size, ptr);
5644:
5645: return result;
5646: }
5647:
5648: void
5649: xfree (ptr)
5650: PTR_T ptr;
5651: {
5652: if (debug > 3)
5653: fprintf (stderr, "\tfree\tptr = 0x%.8x\n", ptr);
5654:
5655: free (ptr);
5656: }
5657:
5658:
5659: /* Define our own index/rindex, since the local and global symbol
5660: structures as defined by MIPS has an 'index' field. */
5661:
5662: STATIC char *
5663: local_index (str, sentinel)
5664: const char *str;
5665: int sentinel;
5666: {
5667: int ch;
5668:
5669: for ( ; (ch = *str) != sentinel; str++)
5670: {
5671: if (ch == '\0')
5672: return (char *)0;
5673: }
5674:
5675: return (char *)str;
5676: }
5677:
5678: STATIC char *
5679: local_rindex (str, sentinel)
5680: const char *str;
5681: int sentinel;
5682: {
5683: int ch;
5684: const char *ret = (const char *)0;
5685:
5686: for ( ; (ch = *str) != '\0'; str++)
5687: {
5688: if (ch == sentinel)
5689: ret = str;
5690: }
5691:
5692: return (char *)ret;
5693: }
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