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