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