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