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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).
1.1.1.7 ! root 5: Copyright (C) 1991, 1993, 1994 Free Software Foundation, Inc.
! 6: Contributed by Michael Meissner, [email protected]
! 7:
1.1 root 8: This file is part of GNU CC.
9:
10: GNU CC is free software; you can redistribute it and/or modify
11: it under the terms of the GNU General Public License as published by
12: the Free Software Foundation; either version 2, or (at your option)
13: any later version.
14:
15: GNU CC is distributed in the hope that it will be useful,
16: but WITHOUT ANY WARRANTY; without even the implied warranty of
17: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: GNU General Public License for more details.
19:
20: You should have received a copy of the GNU General Public License
21: along with GNU CC; see the file COPYING. If not, write to
22: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
23:
24:
25: /* Here is a brief description of the MIPS ECOFF symbol table. The
26: MIPS symbol table has the following pieces:
27:
28: Symbolic Header
29: |
30: +-- Auxiliary Symbols
31: |
32: +-- Dense number table
33: |
34: +-- Optimizer Symbols
35: |
36: +-- External Strings
37: |
38: +-- External Symbols
39: |
40: +-- Relative file descriptors
41: |
42: +-- File table
43: |
44: +-- Procedure table
45: |
46: +-- Line number table
47: |
48: +-- Local Strings
49: |
50: +-- Local Symbols
51:
52: The symbolic header points to each of the other tables, and also
53: contains the number of entries. It also contains a magic number
54: and MIPS compiler version number, such as 2.0.
55:
56: The auxiliary table is a series of 32 bit integers, that are
57: referenced as needed from the local symbol table. Unlike standard
58: COFF, the aux. information does not follow the symbol that uses
59: it, but rather is a separate table. In theory, this would allow
60: the MIPS compilers to collapse duplicate aux. entries, but I've not
61: noticed this happening with the 1.31 compiler suite. The different
62: types of aux. entries are:
63:
64: 1) dnLow: Low bound on array dimension.
65:
66: 2) dnHigh: High bound on array dimension.
67:
68: 3) isym: Index to the local symbol which is the start of the
69: function for the end of function first aux. entry.
70:
71: 4) width: Width of structures and bitfields.
72:
73: 5) count: Count of ranges for variant part.
74:
75: 6) rndx: A relative index into the symbol table. The relative
76: index field has two parts: rfd which is a pointer into the
77: relative file index table or ST_RFDESCAPE which says the next
78: aux. entry is the file number, and index: which is the pointer
79: into the local symbol within a given file table. This is for
80: things like references to types defined in another file.
81:
82: 7) Type information: This is like the COFF type bits, except it
83: is 32 bits instead of 16; they still have room to add new
84: basic types; and they can handle more than 6 levels of array,
85: pointer, function, etc. Each type information field contains
86: the following structure members:
87:
88: a) fBitfield: a bit that says this is a bitfield, and the
89: size in bits follows as the next aux. entry.
90:
91: b) continued: a bit that says the next aux. entry is a
92: continuation of the current type information (in case
93: there are more than 6 levels of array/ptr/function).
94:
95: c) bt: an integer containing the base type before adding
96: array, pointer, function, etc. qualifiers. The
97: current base types that I have documentation for are:
98:
99: btNil -- undefined
100: btAdr -- address - integer same size as ptr
101: btChar -- character
102: btUChar -- unsigned character
103: btShort -- short
104: btUShort -- unsigned short
105: btInt -- int
106: btUInt -- unsigned int
107: btLong -- long
108: btULong -- unsigned long
109: btFloat -- float (real)
110: btDouble -- Double (real)
111: btStruct -- Structure (Record)
112: btUnion -- Union (variant)
113: btEnum -- Enumerated
114: btTypedef -- defined via a typedef isymRef
115: btRange -- subrange of int
116: btSet -- pascal sets
117: btComplex -- fortran complex
118: btDComplex -- fortran double complex
119: btIndirect -- forward or unnamed typedef
120: btFixedDec -- Fixed Decimal
121: btFloatDec -- Float Decimal
122: btString -- Varying Length Character String
123: btBit -- Aligned Bit String
124: btPicture -- Picture
125: btVoid -- Void (MIPS cc revision >= 2.00)
126:
127: d) tq0 - tq5: type qualifier fields as needed. The
128: current type qualifier fields I have documentation for
129: are:
130:
131: tqNil -- no more qualifiers
132: tqPtr -- pointer
133: tqProc -- procedure
134: tqArray -- array
135: tqFar -- 8086 far pointers
136: tqVol -- volatile
137:
138:
139: The dense number table is used in the front ends, and disappears by
140: the time the .o is created.
141:
142: With the 1.31 compiler suite, the optimization symbols don't seem
143: to be used as far as I can tell.
144:
145: The linker is the first entity that creates the relative file
146: descriptor table, and I believe it is used so that the individual
147: file table pointers don't have to be rewritten when the objects are
148: merged together into the program file.
149:
150: Unlike COFF, the basic symbol & string tables are split into
151: external and local symbols/strings. The relocation information
152: only goes off of the external symbol table, and the debug
153: information only goes off of the internal symbol table. The
154: external symbols can have links to an appropriate file index and
155: symbol within the file to give it the appropriate type information.
156: Because of this, the external symbols are actually larger than the
157: internal symbols (to contain the link information), and contain the
158: local symbol structure as a member, though this member is not the
159: first member of the external symbol structure (!). I suspect this
160: split is to make strip easier to deal with.
161:
162: Each file table has offsets for where the line numbers, local
163: strings, local symbols, and procedure table starts from within the
164: global tables, and the indexs are reset to 0 for each of those
165: tables for the file.
166:
167: The procedure table contains the binary equivalents of the .ent
168: (start of the function address), .frame (what register is the
169: virtual frame pointer, constant offset from the register to obtain
170: the VFP, and what register holds the return address), .mask/.fmask
171: (bitmask of saved registers, and where the first register is stored
172: relative to the VFP) assembler directives. It also contains the
173: low and high bounds of the line numbers if debugging is turned on.
174:
175: The line number table is a compressed form of the normal COFF line
176: table. Each line number entry is either 1 or 3 bytes long, and
177: contains a signed delta from the previous line, and an unsigned
178: count of the number of instructions this statement takes.
179:
180: The local symbol table contains the following fields:
181:
182: 1) iss: index to the local string table giving the name of the
183: symbol.
184:
185: 2) value: value of the symbol (address, register number, etc.).
186:
187: 3) st: symbol type. The current symbol types are:
188:
189: stNil -- Nuthin' special
190: stGlobal -- external symbol
191: stStatic -- static
192: stParam -- procedure argument
193: stLocal -- local variable
194: stLabel -- label
195: stProc -- External Procedure
1.1.1.3 root 196: stBlock -- beginning of block
1.1 root 197: stEnd -- end (of anything)
198: stMember -- member (of anything)
199: stTypedef -- type definition
200: stFile -- file name
201: stRegReloc -- register relocation
202: stForward -- forwarding address
203: stStaticProc -- Static procedure
204: stConstant -- const
205:
206: 4) sc: storage class. The current storage classes are:
207:
208: scText -- text symbol
209: scData -- initialized data symbol
210: scBss -- un-initialized data symbol
211: scRegister -- value of symbol is register number
212: scAbs -- value of symbol is absolute
213: scUndefined -- who knows?
214: scCdbLocal -- variable's value is IN se->va.??
215: scBits -- this is a bit field
216: scCdbSystem -- value is IN debugger's address space
217: scRegImage -- register value saved on stack
218: scInfo -- symbol contains debugger information
219: scUserStruct -- addr in struct user for current process
220: scSData -- load time only small data
221: scSBss -- load time only small common
222: scRData -- load time only read only data
223: scVar -- Var parameter (fortranpascal)
224: scCommon -- common variable
225: scSCommon -- small common
226: scVarRegister -- Var parameter in a register
227: scVariant -- Variant record
228: scSUndefined -- small undefined(external) data
229: scInit -- .init section symbol
230:
231: 5) index: pointer to a local symbol or aux. entry.
232:
233:
234:
235: For the following program:
236:
237: #include <stdio.h>
238:
239: main(){
240: printf("Hello World!\n");
241: return 0;
242: }
243:
244: Mips-tdump produces the following information:
245:
246: Global file header:
247: magic number 0x162
248: # sections 2
249: timestamp 645311799, Wed Jun 13 17:16:39 1990
250: symbolic header offset 284
251: symbolic header size 96
252: optional header 56
253: flags 0x0
254:
255: Symbolic header, magic number = 0x7009, vstamp = 1.31:
256:
257: Info Offset Number Bytes
258: ==== ====== ====== =====
259:
260: Line numbers 380 4 4 [13]
261: Dense numbers 0 0 0
262: Procedures Tables 384 1 52
263: Local Symbols 436 16 192
264: Optimization Symbols 0 0 0
1.1.1.3 root 265: Auxiliary Symbols 628 39 156
1.1 root 266: Local Strings 784 80 80
267: External Strings 864 144 144
268: File Tables 1008 2 144
269: Relative Files 0 0 0
270: External Symbols 1152 20 320
271:
272: File #0, "hello2.c"
273:
274: Name index = 1 Readin = No
275: Merge = No Endian = LITTLE
276: Debug level = G2 Language = C
277: Adr = 0x00000000
278:
279: Info Start Number Size Offset
280: ==== ===== ====== ==== ======
281: Local strings 0 15 15 784
282: Local symbols 0 6 72 436
283: Line numbers 0 13 13 380
284: Optimization symbols 0 0 0 0
285: Procedures 0 1 52 384
286: Auxiliary symbols 0 14 56 628
287: Relative Files 0 0 0 0
288:
289: There are 6 local symbols, starting at 436
290:
291: Symbol# 0: "hello2.c"
292: End+1 symbol = 6
293: String index = 1
294: Storage class = Text Index = 6
295: Symbol type = File Value = 0
296:
297: Symbol# 1: "main"
298: End+1 symbol = 5
299: Type = int
300: String index = 10
301: Storage class = Text Index = 12
302: Symbol type = Proc Value = 0
303:
304: Symbol# 2: ""
305: End+1 symbol = 4
306: String index = 0
307: Storage class = Text Index = 4
308: Symbol type = Block Value = 8
309:
310: Symbol# 3: ""
311: First symbol = 2
312: String index = 0
313: Storage class = Text Index = 2
314: Symbol type = End Value = 28
315:
316: Symbol# 4: "main"
317: First symbol = 1
318: String index = 10
319: Storage class = Text Index = 1
320: Symbol type = End Value = 52
321:
322: Symbol# 5: "hello2.c"
323: First symbol = 0
324: String index = 1
325: Storage class = Text Index = 0
326: Symbol type = End Value = 0
327:
328: There are 14 auxiliary table entries, starting at 628.
329:
330: * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
331: * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
332: * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
333: * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
334: * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
335: * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
336: * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
337: * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
338: * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
339: * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
340: * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
341: * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
342: #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
343: #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
344:
345: There are 1 procedure descriptor entries, starting at 0.
346:
347: Procedure descriptor 0:
348: Name index = 10 Name = "main"
349: .mask 0x80000000,-4 .fmask 0x00000000,0
350: .frame $29,24,$31
351: Opt. start = -1 Symbols start = 1
352: First line # = 3 Last line # = 6
353: Line Offset = 0 Address = 0x00000000
354:
355: There are 4 bytes holding line numbers, starting at 380.
356: Line 3, delta 0, count 2
357: Line 4, delta 1, count 3
358: Line 5, delta 1, count 2
359: Line 6, delta 1, count 6
360:
361: File #1, "/usr/include/stdio.h"
362:
363: Name index = 1 Readin = No
364: Merge = Yes Endian = LITTLE
365: Debug level = G2 Language = C
366: Adr = 0x00000000
367:
368: Info Start Number Size Offset
369: ==== ===== ====== ==== ======
370: Local strings 15 65 65 799
371: Local symbols 6 10 120 508
372: Line numbers 0 0 0 380
373: Optimization symbols 0 0 0 0
374: Procedures 1 0 0 436
375: Auxiliary symbols 14 25 100 684
376: Relative Files 0 0 0 0
377:
378: There are 10 local symbols, starting at 442
379:
380: Symbol# 0: "/usr/include/stdio.h"
381: End+1 symbol = 10
382: String index = 1
383: Storage class = Text Index = 10
384: Symbol type = File Value = 0
385:
386: Symbol# 1: "_iobuf"
387: End+1 symbol = 9
388: String index = 22
389: Storage class = Info Index = 9
390: Symbol type = Block Value = 20
391:
392: Symbol# 2: "_cnt"
393: Type = int
394: String index = 29
395: Storage class = Info Index = 4
396: Symbol type = Member Value = 0
397:
398: Symbol# 3: "_ptr"
399: Type = ptr to char
400: String index = 34
401: Storage class = Info Index = 15
402: Symbol type = Member Value = 32
403:
404: Symbol# 4: "_base"
405: Type = ptr to char
406: String index = 39
407: Storage class = Info Index = 16
408: Symbol type = Member Value = 64
409:
410: Symbol# 5: "_bufsiz"
411: Type = int
412: String index = 45
413: Storage class = Info Index = 4
414: Symbol type = Member Value = 96
415:
416: Symbol# 6: "_flag"
417: Type = short
418: String index = 53
419: Storage class = Info Index = 3
420: Symbol type = Member Value = 128
421:
422: Symbol# 7: "_file"
423: Type = char
424: String index = 59
425: Storage class = Info Index = 2
426: Symbol type = Member Value = 144
427:
428: Symbol# 8: ""
429: First symbol = 1
430: String index = 0
431: Storage class = Info Index = 1
432: Symbol type = End Value = 0
433:
434: Symbol# 9: "/usr/include/stdio.h"
435: First symbol = 0
436: String index = 1
437: Storage class = Text Index = 0
438: Symbol type = End Value = 0
439:
440: There are 25 auxiliary table entries, starting at 642.
441:
442: * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
443: #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
444: #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
445: * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
446: * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
447: * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
448: * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
449: * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
450: * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
451: * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
452: * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
453: * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
454: * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
455: * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456: * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457: * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458: * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459: * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460: * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461: * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462: * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463: * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464: * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465: * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466: * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467:
468: There are 0 procedure descriptor entries, starting at 1.
469:
470: There are 20 external symbols, starting at 1152
471:
472: Symbol# 0: "_iob"
473: Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
474: String index = 0 Ifd = 1
475: Storage class = Nil Index = 17
476: Symbol type = Global Value = 60
477:
478: Symbol# 1: "fopen"
479: String index = 5 Ifd = 1
480: Storage class = Nil Index = 1048575
481: Symbol type = Proc Value = 0
482:
483: Symbol# 2: "fdopen"
484: String index = 11 Ifd = 1
485: Storage class = Nil Index = 1048575
486: Symbol type = Proc Value = 0
487:
488: Symbol# 3: "freopen"
489: String index = 18 Ifd = 1
490: Storage class = Nil Index = 1048575
491: Symbol type = Proc Value = 0
492:
493: Symbol# 4: "popen"
494: String index = 26 Ifd = 1
495: Storage class = Nil Index = 1048575
496: Symbol type = Proc Value = 0
497:
498: Symbol# 5: "tmpfile"
499: String index = 32 Ifd = 1
500: Storage class = Nil Index = 1048575
501: Symbol type = Proc Value = 0
502:
503: Symbol# 6: "ftell"
504: String index = 40 Ifd = 1
505: Storage class = Nil Index = 1048575
506: Symbol type = Proc Value = 0
507:
508: Symbol# 7: "rewind"
509: String index = 46 Ifd = 1
510: Storage class = Nil Index = 1048575
511: Symbol type = Proc Value = 0
512:
513: Symbol# 8: "setbuf"
514: String index = 53 Ifd = 1
515: Storage class = Nil Index = 1048575
516: Symbol type = Proc Value = 0
517:
518: Symbol# 9: "setbuffer"
519: String index = 60 Ifd = 1
520: Storage class = Nil Index = 1048575
521: Symbol type = Proc Value = 0
522:
523: Symbol# 10: "setlinebuf"
524: String index = 70 Ifd = 1
525: Storage class = Nil Index = 1048575
526: Symbol type = Proc Value = 0
527:
528: Symbol# 11: "fgets"
529: String index = 81 Ifd = 1
530: Storage class = Nil Index = 1048575
531: Symbol type = Proc Value = 0
532:
533: Symbol# 12: "gets"
534: String index = 87 Ifd = 1
535: Storage class = Nil Index = 1048575
536: Symbol type = Proc Value = 0
537:
538: Symbol# 13: "ctermid"
539: String index = 92 Ifd = 1
540: Storage class = Nil Index = 1048575
541: Symbol type = Proc Value = 0
542:
543: Symbol# 14: "cuserid"
544: String index = 100 Ifd = 1
545: Storage class = Nil Index = 1048575
546: Symbol type = Proc Value = 0
547:
548: Symbol# 15: "tempnam"
549: String index = 108 Ifd = 1
550: Storage class = Nil Index = 1048575
551: Symbol type = Proc Value = 0
552:
553: Symbol# 16: "tmpnam"
554: String index = 116 Ifd = 1
555: Storage class = Nil Index = 1048575
556: Symbol type = Proc Value = 0
557:
558: Symbol# 17: "sprintf"
559: String index = 123 Ifd = 1
560: Storage class = Nil Index = 1048575
561: Symbol type = Proc Value = 0
562:
563: Symbol# 18: "main"
564: Type = int
565: String index = 131 Ifd = 0
566: Storage class = Text Index = 1
567: Symbol type = Proc Value = 0
568:
569: Symbol# 19: "printf"
570: String index = 136 Ifd = 0
571: Storage class = Undefined Index = 1048575
572: Symbol type = Proc Value = 0
573:
574: The following auxiliary table entries were unused:
575:
576: #0 0 0x00000000 void
577: #2 8 0x00000008 char
578: #3 16 0x00000010 short
579: #4 24 0x00000018 int
580: #5 32 0x00000020 long
581: #6 40 0x00000028 float
582: #7 44 0x0000002c double
583: #8 12 0x0000000c unsigned char
584: #9 20 0x00000014 unsigned short
585: #10 28 0x0000001c unsigned int
586: #11 36 0x00000024 unsigned long
587: #14 0 0x00000000 void
588: #15 24 0x00000018 int
589: #19 32 0x00000020 long
590: #20 40 0x00000028 float
591: #21 44 0x0000002c double
592: #22 12 0x0000000c unsigned char
593: #23 20 0x00000014 unsigned short
594: #24 28 0x0000001c unsigned int
595: #25 36 0x00000024 unsigned long
596: #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
597:
598: */
599:
600:
1.1.1.7 ! root 601: #ifdef __STDC__
! 602: #include <stdarg.h>
! 603: #else
! 604: #include <varargs.h>
! 605: #endif
1.1 root 606: #include "config.h"
1.1.1.4 root 607: #include <stdio.h>
1.1 root 608:
609: #ifndef __SABER__
610: #define saber_stop()
611: #endif
612:
613: #ifndef __LINE__
614: #define __LINE__ 0
615: #endif
616:
617: #ifdef __STDC__
618: typedef void *PTR_T;
619: typedef const void *CPTR_T;
620: #define __proto(x) x
1.1.1.7 ! root 621: #ifndef VPROTO
! 622: #define PVPROTO(ARGS) ARGS
! 623: #define VPROTO(ARGS) ARGS
! 624: #define VA_START(va_list,var) va_start(va_list,var)
! 625: #endif
1.1 root 626: #else
627:
1.1.1.2 root 628: #if defined(_STDIO_H_) || defined(__STDIO_H__) /* Ultrix 4.0, SGI */
1.1 root 629: typedef void *PTR_T;
630: typedef void *CPTR_T;
631:
632: #else
1.1.1.2 root 633: typedef char *PTR_T; /* Ultrix 3.1 */
1.1 root 634: typedef char *CPTR_T;
635: #endif
636:
637: #define __proto(x) ()
638: #define const
1.1.1.7 ! root 639: #ifndef VPROTO
! 640: #define PVPROTO(ARGS) ()
! 641: #define VPROTO(ARGS) (va_alist) va_dcl
! 642: #define VA_START(va_list,var) va_start(va_list)
! 643: #endif
1.1 root 644: #endif
645:
646: /* Do to size_t being defined in sys/types.h and different
647: in stddef.h, we have to do this by hand..... Note, these
648: types are correct for MIPS based systems, and may not be
649: correct for other systems. Ultrix 4.0 and Silicon Graphics
650: have this fixed, but since the following is correct, and
651: the fact that including stddef.h gets you GCC's version
652: instead of the standard one it's not worth it to fix it. */
653:
1.1.1.4 root 654: #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
655: #define Size_t long unsigned int
656: #else
1.1 root 657: #define Size_t unsigned int
1.1.1.4 root 658: #endif
1.1.1.6 root 659: #define Ptrdiff_t long
1.1 root 660:
661: /* The following might be called from obstack or malloc,
662: so they can't be static. */
663:
664: extern void pfatal_with_name
665: __proto((char *));
666: extern void fancy_abort __proto((void));
1.1.1.2 root 667: void botch __proto((const char *));
1.1 root 668: extern PTR_T xmalloc __proto((Size_t));
669: extern PTR_T xcalloc __proto((Size_t, Size_t));
670: extern PTR_T xrealloc __proto((PTR_T, Size_t));
671: extern void xfree __proto((PTR_T));
672:
1.1.1.7 ! root 673: #ifdef HAVE_VPRINTF
! 674: extern void fatal PVPROTO((char *format, ...));
! 675: extern void error PVPROTO((char *format, ...));
! 676: #else
! 677: /* We must not provide any prototype here, even if ANSI C. */
! 678: extern void fatal __proto(());
! 679: extern void error __proto(());
! 680: #endif
1.1 root 681:
682:
683: #ifndef MIPS_DEBUGGING_INFO
684:
685: static int line_number;
686: static int cur_line_start;
687: static int debug;
688: static int had_errors;
689: static char *progname;
690: static char *input_name;
691:
692: int
693: main ()
694: {
695: fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
696: exit (1);
697: }
698:
699: #else /* MIPS_DEBUGGING defined */
700:
1.1.1.4 root 701: /* The local and global symbols have a field index, so undo any defines
702: of index -> strchr and rindex -> strrchr. */
703:
704: #undef rindex
705: #undef index
1.1 root 706:
707: #include <sys/types.h>
708: #include <string.h>
709: #include <ctype.h>
710: #include <fcntl.h>
711: #include <errno.h>
712: #include <signal.h>
713: #include <sys/stat.h>
714:
1.1.1.4 root 715: #ifndef CROSS_COMPILE
716: #include <a.out.h>
717: #else
1.1.1.6 root 718: #include "mips/a.out.h"
719: #endif /* CROSS_COMPILE */
1.1.1.4 root 720:
1.1.1.2 root 721: #if defined (USG) || defined (NO_STAB_H)
1.1 root 722: #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
723: #else
724: #include <stab.h> /* On BSD, use the system's stab.h. */
725: #endif /* not USG */
726:
727: #ifdef __GNU_STAB__
728: #define STAB_CODE_TYPE enum __stab_debug_code
729: #else
730: #define STAB_CODE_TYPE int
731: #endif
732:
733: #ifdef _OSF_SOURCE
734: #define HAS_STDLIB_H
735: #define HAS_UNISTD_H
736: #endif
737:
738: #ifdef HAS_STDLIB_H
739: #include <stdlib.h>
740: #endif
741:
742: #ifdef HAS_UNISTD_H
743: #include <unistd.h>
744: #endif
745:
746: #ifndef errno
747: extern int errno; /* MIPS errno.h doesn't declare this */
748: #endif
749:
750: #ifndef MALLOC_CHECK
751: #ifdef __SABER__
752: #define MALLOC_CHECK
753: #endif
754: #endif
755:
756: #define IS_ASM_IDENT(ch) \
757: (isalnum (ch) || (ch) == '_' || (ch) == '.' || (ch) == '$')
758:
759:
1.1.1.3 root 760: /* Redefinition of of storage classes as an enumeration for better
1.1 root 761: debugging. */
762:
763: typedef enum sc {
764: sc_Nil = scNil, /* no storage class */
765: sc_Text = scText, /* text symbol */
766: sc_Data = scData, /* initialized data symbol */
767: sc_Bss = scBss, /* un-initialized data symbol */
768: sc_Register = scRegister, /* value of symbol is register number */
769: sc_Abs = scAbs, /* value of symbol is absolute */
770: sc_Undefined = scUndefined, /* who knows? */
771: sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
772: sc_Bits = scBits, /* this is a bit field */
773: sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
774: sc_RegImage = scRegImage, /* register value saved on stack */
775: sc_Info = scInfo, /* symbol contains debugger information */
776: sc_UserStruct = scUserStruct, /* addr in struct user for current process */
777: sc_SData = scSData, /* load time only small data */
778: sc_SBss = scSBss, /* load time only small common */
779: sc_RData = scRData, /* load time only read only data */
780: sc_Var = scVar, /* Var parameter (fortran,pascal) */
781: sc_Common = scCommon, /* common variable */
782: sc_SCommon = scSCommon, /* small common */
783: sc_VarRegister = scVarRegister, /* Var parameter in a register */
784: sc_Variant = scVariant, /* Variant record */
785: sc_SUndefined = scSUndefined, /* small undefined(external) data */
786: sc_Init = scInit, /* .init section symbol */
787: sc_Max = scMax /* Max storage class+1 */
788: } sc_t;
789:
790: /* Redefinition of symbol type. */
791:
792: typedef enum st {
793: st_Nil = stNil, /* Nuthin' special */
794: st_Global = stGlobal, /* external symbol */
795: st_Static = stStatic, /* static */
796: st_Param = stParam, /* procedure argument */
797: st_Local = stLocal, /* local variable */
798: st_Label = stLabel, /* label */
799: st_Proc = stProc, /* " " Procedure */
1.1.1.3 root 800: st_Block = stBlock, /* beginning of block */
1.1 root 801: st_End = stEnd, /* end (of anything) */
802: st_Member = stMember, /* member (of anything - struct/union/enum */
803: st_Typedef = stTypedef, /* type definition */
804: st_File = stFile, /* file name */
805: st_RegReloc = stRegReloc, /* register relocation */
806: st_Forward = stForward, /* forwarding address */
807: st_StaticProc = stStaticProc, /* load time only static procs */
808: st_Constant = stConstant, /* const */
809: st_Str = stStr, /* string */
810: st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
811: st_Expr = stExpr, /* 2+2 vs. 4 */
1.1.1.3 root 812: st_Type = stType, /* post-coercion SER */
1.1 root 813: st_Max = stMax /* max type+1 */
814: } st_t;
815:
816: /* Redefinition of type qualifiers. */
817:
818: typedef enum tq {
819: tq_Nil = tqNil, /* bt is what you see */
820: tq_Ptr = tqPtr, /* pointer */
821: tq_Proc = tqProc, /* procedure */
822: tq_Array = tqArray, /* duh */
823: tq_Far = tqFar, /* longer addressing - 8086/8 land */
824: tq_Vol = tqVol, /* volatile */
825: tq_Max = tqMax /* Max type qualifier+1 */
826: } tq_t;
827:
828: /* Redefinition of basic types. */
829:
830: typedef enum bt {
831: bt_Nil = btNil, /* undefined */
832: bt_Adr = btAdr, /* address - integer same size as pointer */
833: bt_Char = btChar, /* character */
834: bt_UChar = btUChar, /* unsigned character */
835: bt_Short = btShort, /* short */
836: bt_UShort = btUShort, /* unsigned short */
837: bt_Int = btInt, /* int */
838: bt_UInt = btUInt, /* unsigned int */
839: bt_Long = btLong, /* long */
840: bt_ULong = btULong, /* unsigned long */
841: bt_Float = btFloat, /* float (real) */
842: bt_Double = btDouble, /* Double (real) */
843: bt_Struct = btStruct, /* Structure (Record) */
844: bt_Union = btUnion, /* Union (variant) */
845: bt_Enum = btEnum, /* Enumerated */
846: bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
847: bt_Range = btRange, /* subrange of int */
848: bt_Set = btSet, /* pascal sets */
849: bt_Complex = btComplex, /* fortran complex */
850: bt_DComplex = btDComplex, /* fortran double complex */
851: bt_Indirect = btIndirect, /* forward or unnamed typedef */
852: bt_FixedDec = btFixedDec, /* Fixed Decimal */
853: bt_FloatDec = btFloatDec, /* Float Decimal */
854: bt_String = btString, /* Varying Length Character String */
855: bt_Bit = btBit, /* Aligned Bit String */
856: bt_Picture = btPicture, /* Picture */
857:
858: #ifdef btVoid
859: bt_Void = btVoid, /* Void */
860: #else
861: #define bt_Void bt_Nil
862: #endif
863:
864: bt_Max = btMax /* Max basic type+1 */
865: } bt_t;
866:
867:
868:
869: /* Basic COFF storage classes. */
870: enum coff_storage {
871: C_EFCN = -1,
872: C_NULL = 0,
873: C_AUTO = 1,
874: C_EXT = 2,
875: C_STAT = 3,
876: C_REG = 4,
877: C_EXTDEF = 5,
878: C_LABEL = 6,
879: C_ULABEL = 7,
880: C_MOS = 8,
881: C_ARG = 9,
882: C_STRTAG = 10,
883: C_MOU = 11,
884: C_UNTAG = 12,
885: C_TPDEF = 13,
886: C_USTATIC = 14,
887: C_ENTAG = 15,
888: C_MOE = 16,
889: C_REGPARM = 17,
890: C_FIELD = 18,
891: C_BLOCK = 100,
892: C_FCN = 101,
893: C_EOS = 102,
894: C_FILE = 103,
895: C_LINE = 104,
896: C_ALIAS = 105,
897: C_HIDDEN = 106,
898: C_MAX = 107
899: } coff_storage_t;
900:
901: /* Regular COFF fundamental type. */
902: typedef enum coff_type {
903: T_NULL = 0,
904: T_ARG = 1,
905: T_CHAR = 2,
906: T_SHORT = 3,
907: T_INT = 4,
908: T_LONG = 5,
909: T_FLOAT = 6,
910: T_DOUBLE = 7,
911: T_STRUCT = 8,
912: T_UNION = 9,
913: T_ENUM = 10,
914: T_MOE = 11,
915: T_UCHAR = 12,
916: T_USHORT = 13,
917: T_UINT = 14,
918: T_ULONG = 15,
919: T_MAX = 16
920: } coff_type_t;
921:
922: /* Regular COFF derived types. */
923: typedef enum coff_dt {
924: DT_NON = 0,
925: DT_PTR = 1,
926: DT_FCN = 2,
927: DT_ARY = 3,
928: DT_MAX = 4
929: } coff_dt_t;
930:
931: #define N_BTMASK 017 /* bitmask to isolate basic type */
932: #define N_TMASK 003 /* bitmask to isolate derived type */
933: #define N_BT_SHIFT 4 /* # bits to shift past basic type */
934: #define N_TQ_SHIFT 2 /* # bits to shift derived types */
935: #define N_TQ 6 /* # of type qualifiers */
936:
937: /* States for whether to hash type or not. */
938: typedef enum hash_state {
939: hash_no = 0, /* don't hash type */
940: hash_yes = 1, /* ok to hash type, or use previous hash */
941: hash_record = 2 /* ok to record hash, but don't use prev. */
942: } hash_state_t;
943:
944:
945: /* Types of different sized allocation requests. */
946: enum alloc_type {
947: alloc_type_none, /* dummy value */
948: alloc_type_scope, /* nested scopes linked list */
949: alloc_type_vlinks, /* glue linking pages in varray */
950: alloc_type_shash, /* string hash element */
951: alloc_type_thash, /* type hash element */
952: alloc_type_tag, /* struct/union/tag element */
953: alloc_type_forward, /* element to hold unknown tag */
954: alloc_type_thead, /* head of type hash list */
955: alloc_type_varray, /* general varray allocation */
956: alloc_type_last /* last+1 element for array bounds */
957: };
958:
959:
1.1.1.6 root 960: #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
1.1 root 961: #define DWORD_ALIGN(x) (((x) + 7) & ~7)
962:
963:
964: /* Structures to provide n-number of virtual arrays, each of which can
965: grow linearly, and which are written in the object file as sequential
966: pages. On systems with a BSD malloc that define USE_MALLOC, the
967: MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
968: adds it's overhead, and rounds up to the next power of 2. Pages are
969: linked together via a linked list.
970:
971: If PAGE_SIZE is > 4096, the string length in the shash_t structure
972: can't be represented (assuming there are strings > 4096 bytes). */
973:
974: #ifndef PAGE_SIZE
975: #define PAGE_SIZE 4096 /* size of varray pages */
976: #endif
977:
978: #define PAGE_USIZE ((Size_t)PAGE_SIZE)
979:
980:
981: #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
982: #ifndef USE_MALLOC /* in one memory request */
983: #define MAX_CLUSTER_PAGES 64
984: #else
985: #define MAX_CLUSTER_PAGES 63
986: #endif
987: #endif
988:
989:
990: /* Linked list connecting separate page allocations. */
991: typedef struct vlinks {
992: struct vlinks *prev; /* previous set of pages */
993: struct vlinks *next; /* next set of pages */
994: union page *datum; /* start of page */
995: unsigned long start_index; /* starting index # of page */
996: } vlinks_t;
997:
998:
999: /* Virtual array header. */
1000: typedef struct varray {
1001: vlinks_t *first; /* first page link */
1002: vlinks_t *last; /* last page link */
1003: unsigned long num_allocated; /* # objects allocated */
1004: unsigned short object_size; /* size in bytes of each object */
1005: unsigned short objects_per_page; /* # objects that can fit on a page */
1006: unsigned short objects_last_page; /* # objects allocated on last page */
1007: } varray_t;
1008:
1009: #ifndef MALLOC_CHECK
1010: #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
1011: #else
1012: #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
1013: #endif
1014:
1015: #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
1016: (vlinks_t *)0, /* first */ \
1017: (vlinks_t *)0, /* last */ \
1018: 0, /* num_allocated */ \
1019: sizeof (type), /* object_size */ \
1020: OBJECTS_PER_PAGE (type), /* objects_per_page */ \
1021: OBJECTS_PER_PAGE (type), /* objects_last_page */ \
1022: }
1023:
1024: /* Master type for indexes within the symbol table. */
1025: typedef unsigned long symint_t;
1026:
1027:
1028: /* Linked list support for nested scopes (file, block, structure, etc.). */
1029: typedef struct scope {
1030: struct scope *prev; /* previous scope level */
1031: struct scope *free; /* free list pointer */
1032: SYMR *lsym; /* pointer to local symbol node */
1033: symint_t lnumber; /* lsym index */
1034: st_t type; /* type of the node */
1035: } scope_t;
1036:
1037:
1038: /* Forward reference list for tags referenced, but not yet defined. */
1039: typedef struct forward {
1040: struct forward *next; /* next forward reference */
1041: struct forward *free; /* free list pointer */
1042: AUXU *ifd_ptr; /* pointer to store file index */
1043: AUXU *index_ptr; /* pointer to store symbol index */
1044: AUXU *type_ptr; /* pointer to munge type info */
1045: } forward_t;
1046:
1047:
1048: /* Linked list support for tags. The first tag in the list is always
1049: the current tag for that block. */
1050: typedef struct tag {
1051: struct tag *free; /* free list pointer */
1052: struct shash *hash_ptr; /* pointer to the hash table head */
1053: struct tag *same_name; /* tag with same name in outer scope */
1054: struct tag *same_block; /* next tag defined in the same block. */
1055: struct forward *forward_ref; /* list of forward references */
1056: bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
1057: symint_t ifd; /* file # tag defined in */
1.1.1.4 root 1058: symint_t indx; /* index within file's local symbols */
1.1 root 1059: } tag_t;
1060:
1061:
1062: /* Head of a block's linked list of tags. */
1063: typedef struct thead {
1064: struct thead *prev; /* previous block */
1065: struct thead *free; /* free list pointer */
1066: struct tag *first_tag; /* first tag in block defined */
1067: } thead_t;
1068:
1069:
1070: /* Union containing pointers to each the small structures which are freed up. */
1071: typedef union small_free {
1072: scope_t *f_scope; /* scope structure */
1073: thead_t *f_thead; /* tag head structure */
1074: tag_t *f_tag; /* tag element structure */
1075: forward_t *f_forward; /* forward tag reference */
1076: } small_free_t;
1077:
1078:
1079: /* String hash table support. The size of the hash table must fit
1080: within a page. */
1081:
1082: #ifndef SHASH_SIZE
1083: #define SHASH_SIZE 1009
1084: #endif
1085:
1086: #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1087:
1088: typedef struct shash {
1089: struct shash *next; /* next hash value */
1090: char *string; /* string we are hashing */
1091: symint_t len; /* string length */
1.1.1.4 root 1092: symint_t indx; /* index within string table */
1.1 root 1093: EXTR *esym_ptr; /* global symbol pointer */
1094: SYMR *sym_ptr; /* local symbol pointer */
1095: SYMR *end_ptr; /* symbol pointer to end block */
1096: tag_t *tag_ptr; /* tag pointer */
1097: PDR *proc_ptr; /* procedure descriptor pointer */
1098: } shash_t;
1099:
1100:
1101: /* Type hash table support. The size of the hash table must fit
1102: within a page with the other extended file descriptor information.
1103: Because unique types which are hashed are fewer in number than
1104: strings, we use a smaller hash value. */
1105:
1106: #ifndef THASH_SIZE
1107: #define THASH_SIZE 113
1108: #endif
1109:
1110: typedef struct thash {
1111: struct thash *next; /* next hash value */
1112: AUXU type; /* type we are hashing */
1.1.1.4 root 1113: symint_t indx; /* index within string table */
1.1 root 1114: } thash_t;
1115:
1116:
1117: /* Extended file descriptor that contains all of the support necessary
1118: to add things to each file separately. */
1119: typedef struct efdr {
1120: FDR fdr; /* File header to be written out */
1121: FDR *orig_fdr; /* original file header */
1122: char *name; /* filename */
1123: int name_len; /* length of the filename */
1124: symint_t void_type; /* aux. pointer to 'void' type */
1125: symint_t int_type; /* aux. pointer to 'int' type */
1126: scope_t *cur_scope; /* current nested scopes */
1127: symint_t file_index; /* current file number */
1128: int nested_scopes; /* # nested scopes */
1129: varray_t strings; /* local strings */
1130: varray_t symbols; /* local symbols */
1131: varray_t procs; /* procedures */
1132: varray_t aux_syms; /* auxiliary symbols */
1133: struct efdr *next_file; /* next file descriptor */
1134: /* string/type hash tables */
1135: shash_t **shash_head; /* string hash table */
1136: thash_t *thash_head[THASH_SIZE];
1137: } efdr_t;
1138:
1139: /* Pre-initialized extended file structure. */
1140: static efdr_t init_file =
1141: {
1142: { /* FDR structure */
1143: 0, /* adr: memory address of beginning of file */
1144: 0, /* rss: file name (of source, if known) */
1145: 0, /* issBase: file's string space */
1146: 0, /* cbSs: number of bytes in the ss */
1147: 0, /* isymBase: beginning of symbols */
1148: 0, /* csym: count file's of symbols */
1149: 0, /* ilineBase: file's line symbols */
1150: 0, /* cline: count of file's line symbols */
1151: 0, /* ioptBase: file's optimization entries */
1152: 0, /* copt: count of file's optimization entries */
1153: 0, /* ipdFirst: start of procedures for this file */
1154: 0, /* cpd: count of procedures for this file */
1155: 0, /* iauxBase: file's auxiliary entries */
1156: 0, /* caux: count of file's auxiliary entries */
1157: 0, /* rfdBase: index into the file indirect table */
1158: 0, /* crfd: count file indirect entries */
1159: langC, /* lang: language for this file */
1160: 1, /* fMerge: whether this file can be merged */
1161: 0, /* fReadin: true if read in (not just created) */
1162: #if BYTES_BIG_ENDIAN
1163: 1, /* fBigendian: if 1, compiled on big endian machine */
1164: #else
1165: 0, /* fBigendian: if 1, compiled on big endian machine */
1166: #endif
1167: GLEVEL_2, /* glevel: level this file was compiled with */
1168: 0, /* reserved: reserved for future use */
1169: 0, /* cbLineOffset: byte offset from header for this file ln's */
1170: 0, /* cbLine: size of lines for this file */
1171: },
1172:
1173: (FDR *)0, /* orig_fdr: original file header pointer */
1174: (char *)0, /* name: pointer to filename */
1175: 0, /* name_len: length of filename */
1176: 0, /* void_type: ptr to aux node for void type */
1177: 0, /* int_type: ptr to aux node for int type */
1178: (scope_t *)0, /* cur_scope: current scope being processed */
1179: 0, /* file_index: current file # */
1180: 0, /* nested_scopes: # nested scopes */
1181: INIT_VARRAY (char), /* strings: local string varray */
1182: INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1183: INIT_VARRAY (PDR), /* procs: procedure varray */
1184: INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1185:
1186: (struct efdr *)0, /* next_file: next file structure */
1187:
1188: (shash_t **)0, /* shash_head: string hash table */
1189: { 0 }, /* thash_head: type hash table */
1190: };
1191:
1192:
1193: static efdr_t *first_file; /* first file descriptor */
1194: static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1195:
1196:
1197: /* Union of various things that are held in pages. */
1198: typedef union page {
1199: char byte [ PAGE_SIZE ];
1200: unsigned char ubyte [ PAGE_SIZE ];
1201: efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1202: FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1203: PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1204: SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1205: EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1206: AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1207: DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1208: scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1209: vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1210: shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1211: thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1212: tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1213: forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1214: thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1215: } page_t;
1216:
1217:
1218: /* Structure holding allocation information for small sized structures. */
1219: typedef struct alloc_info {
1220: char *alloc_name; /* name of this allocation type (must be first) */
1221: page_t *cur_page; /* current page being allocated from */
1222: small_free_t free_list; /* current free list if any */
1223: int unallocated; /* number of elements unallocated on page */
1224: int total_alloc; /* total number of allocations */
1225: int total_free; /* total number of frees */
1226: int total_pages; /* total number of pages allocated */
1227: } alloc_info_t;
1228:
1229: /* Type information collected together. */
1230: typedef struct type_info {
1231: bt_t basic_type; /* basic type */
1232: coff_type_t orig_type; /* original COFF-based type */
1233: int num_tq; /* # type qualifiers */
1234: int num_dims; /* # dimensions */
1235: int num_sizes; /* # sizes */
1236: int extra_sizes; /* # extra sizes not tied with dims */
1237: tag_t * tag_ptr; /* tag pointer */
1238: int bitfield; /* symbol is a bitfield */
1239: int unknown_tag; /* this is an unknown tag */
1240: tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1241: symint_t dimensions [N_TQ]; /* dimensions for each array */
1242: symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1243: struct/union/enum + bitfield size */
1244: } type_info_t;
1245:
1246: /* Pre-initialized type_info struct. */
1247: static type_info_t type_info_init = {
1248: bt_Nil, /* basic type */
1249: T_NULL, /* original COFF-based type */
1250: 0, /* # type qualifiers */
1251: 0, /* # dimensions */
1252: 0, /* # sizes */
1253: 0, /* sizes not tied with dims */
1254: NULL, /* ptr to tag */
1255: 0, /* bitfield */
1256: 0, /* unknown tag */
1257: { /* type qualifiers */
1258: tq_Nil,
1259: tq_Nil,
1260: tq_Nil,
1261: tq_Nil,
1262: tq_Nil,
1263: tq_Nil,
1264: },
1265: { /* dimensions */
1266: 0,
1267: 0,
1268: 0,
1269: 0,
1270: 0,
1271: 0
1272: },
1273: { /* sizes */
1274: 0,
1275: 0,
1276: 0,
1277: 0,
1278: 0,
1279: 0,
1280: 0,
1281: 0,
1282: },
1283: };
1284:
1285:
1286: /* Global virtual arrays & hash table for external strings as well as
1287: for the tags table and global tables for file descriptors, and
1288: dense numbers. */
1289:
1290: static varray_t file_desc = INIT_VARRAY (efdr_t);
1291: static varray_t dense_num = INIT_VARRAY (DNR);
1292: static varray_t tag_strings = INIT_VARRAY (char);
1293: static varray_t ext_strings = INIT_VARRAY (char);
1294: static varray_t ext_symbols = INIT_VARRAY (EXTR);
1295:
1296: static shash_t *orig_str_hash[SHASH_SIZE];
1297: static shash_t *ext_str_hash [SHASH_SIZE];
1298: static shash_t *tag_hash [SHASH_SIZE];
1299:
1300: /* Static types for int and void. Also, remember the last function's
1301: type (which is set up when we encounter the declaration for the
1302: function, and used when the end block for the function is emitted. */
1303:
1304: static type_info_t int_type_info;
1305: static type_info_t void_type_info;
1306: static type_info_t last_func_type_info;
1307: static EXTR *last_func_eptr;
1308:
1309:
1310: /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1311: really should use bt_Void, but this causes the current ecoff GDB to
1312: issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1313: 2.0) doesn't understand it, even though the compiler generates it.
1314: Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1315: suite, but for now go with what works. */
1316:
1317: static bt_t map_coff_types[ (int)T_MAX ] = {
1318: bt_Nil, /* T_NULL */
1319: bt_Nil, /* T_ARG */
1320: bt_Char, /* T_CHAR */
1321: bt_Short, /* T_SHORT */
1322: bt_Int, /* T_INT */
1323: bt_Long, /* T_LONG */
1324: bt_Float, /* T_FLOAT */
1325: bt_Double, /* T_DOUBLE */
1326: bt_Struct, /* T_STRUCT */
1327: bt_Union, /* T_UNION */
1328: bt_Enum, /* T_ENUM */
1329: bt_Enum, /* T_MOE */
1330: bt_UChar, /* T_UCHAR */
1331: bt_UShort, /* T_USHORT */
1332: bt_UInt, /* T_UINT */
1333: bt_ULong /* T_ULONG */
1334: };
1335:
1336: /* Convert COFF storage class to ECOFF storage class. */
1337: static sc_t map_coff_storage[ (int)C_MAX ] = {
1338: sc_Nil, /* 0: C_NULL */
1339: sc_Abs, /* 1: C_AUTO auto var */
1340: sc_Undefined, /* 2: C_EXT external */
1341: sc_Data, /* 3: C_STAT static */
1342: sc_Register, /* 4: C_REG register */
1343: sc_Undefined, /* 5: C_EXTDEF ??? */
1344: sc_Text, /* 6: C_LABEL label */
1345: sc_Text, /* 7: C_ULABEL user label */
1346: sc_Info, /* 8: C_MOS member of struct */
1347: sc_Abs, /* 9: C_ARG argument */
1348: sc_Info, /* 10: C_STRTAG struct tag */
1349: sc_Info, /* 11: C_MOU member of union */
1350: sc_Info, /* 12: C_UNTAG union tag */
1351: sc_Info, /* 13: C_TPDEF typedef */
1352: sc_Data, /* 14: C_USTATIC ??? */
1353: sc_Info, /* 15: C_ENTAG enum tag */
1354: sc_Info, /* 16: C_MOE member of enum */
1355: sc_Register, /* 17: C_REGPARM register parameter */
1356: sc_Bits, /* 18; C_FIELD bitfield */
1357: sc_Nil, /* 19 */
1358: sc_Nil, /* 20 */
1359: sc_Nil, /* 21 */
1360: sc_Nil, /* 22 */
1361: sc_Nil, /* 23 */
1362: sc_Nil, /* 24 */
1363: sc_Nil, /* 25 */
1364: sc_Nil, /* 26 */
1365: sc_Nil, /* 27 */
1366: sc_Nil, /* 28 */
1367: sc_Nil, /* 29 */
1368: sc_Nil, /* 30 */
1369: sc_Nil, /* 31 */
1370: sc_Nil, /* 32 */
1371: sc_Nil, /* 33 */
1372: sc_Nil, /* 34 */
1373: sc_Nil, /* 35 */
1374: sc_Nil, /* 36 */
1375: sc_Nil, /* 37 */
1376: sc_Nil, /* 38 */
1377: sc_Nil, /* 39 */
1378: sc_Nil, /* 40 */
1379: sc_Nil, /* 41 */
1380: sc_Nil, /* 42 */
1381: sc_Nil, /* 43 */
1382: sc_Nil, /* 44 */
1383: sc_Nil, /* 45 */
1384: sc_Nil, /* 46 */
1385: sc_Nil, /* 47 */
1386: sc_Nil, /* 48 */
1387: sc_Nil, /* 49 */
1388: sc_Nil, /* 50 */
1389: sc_Nil, /* 51 */
1390: sc_Nil, /* 52 */
1391: sc_Nil, /* 53 */
1392: sc_Nil, /* 54 */
1393: sc_Nil, /* 55 */
1394: sc_Nil, /* 56 */
1395: sc_Nil, /* 57 */
1396: sc_Nil, /* 58 */
1397: sc_Nil, /* 59 */
1398: sc_Nil, /* 60 */
1399: sc_Nil, /* 61 */
1400: sc_Nil, /* 62 */
1401: sc_Nil, /* 63 */
1402: sc_Nil, /* 64 */
1403: sc_Nil, /* 65 */
1404: sc_Nil, /* 66 */
1405: sc_Nil, /* 67 */
1406: sc_Nil, /* 68 */
1407: sc_Nil, /* 69 */
1408: sc_Nil, /* 70 */
1409: sc_Nil, /* 71 */
1410: sc_Nil, /* 72 */
1411: sc_Nil, /* 73 */
1412: sc_Nil, /* 74 */
1413: sc_Nil, /* 75 */
1414: sc_Nil, /* 76 */
1415: sc_Nil, /* 77 */
1416: sc_Nil, /* 78 */
1417: sc_Nil, /* 79 */
1418: sc_Nil, /* 80 */
1419: sc_Nil, /* 81 */
1420: sc_Nil, /* 82 */
1421: sc_Nil, /* 83 */
1422: sc_Nil, /* 84 */
1423: sc_Nil, /* 85 */
1424: sc_Nil, /* 86 */
1425: sc_Nil, /* 87 */
1426: sc_Nil, /* 88 */
1427: sc_Nil, /* 89 */
1428: sc_Nil, /* 90 */
1429: sc_Nil, /* 91 */
1430: sc_Nil, /* 92 */
1431: sc_Nil, /* 93 */
1432: sc_Nil, /* 94 */
1433: sc_Nil, /* 95 */
1434: sc_Nil, /* 96 */
1435: sc_Nil, /* 97 */
1436: sc_Nil, /* 98 */
1437: sc_Nil, /* 99 */
1438: sc_Text, /* 100: C_BLOCK block start/end */
1439: sc_Text, /* 101: C_FCN function start/end */
1440: sc_Info, /* 102: C_EOS end of struct/union/enum */
1441: sc_Nil, /* 103: C_FILE file start */
1442: sc_Nil, /* 104: C_LINE line number */
1443: sc_Nil, /* 105: C_ALIAS combined type info */
1444: sc_Nil, /* 106: C_HIDDEN ??? */
1445: };
1446:
1447: /* Convert COFF storage class to ECOFF symbol type. */
1448: static st_t map_coff_sym_type[ (int)C_MAX ] = {
1449: st_Nil, /* 0: C_NULL */
1450: st_Local, /* 1: C_AUTO auto var */
1451: st_Global, /* 2: C_EXT external */
1452: st_Static, /* 3: C_STAT static */
1453: st_Local, /* 4: C_REG register */
1454: st_Global, /* 5: C_EXTDEF ??? */
1455: st_Label, /* 6: C_LABEL label */
1456: st_Label, /* 7: C_ULABEL user label */
1457: st_Member, /* 8: C_MOS member of struct */
1458: st_Param, /* 9: C_ARG argument */
1459: st_Block, /* 10: C_STRTAG struct tag */
1460: st_Member, /* 11: C_MOU member of union */
1461: st_Block, /* 12: C_UNTAG union tag */
1462: st_Typedef, /* 13: C_TPDEF typedef */
1463: st_Static, /* 14: C_USTATIC ??? */
1464: st_Block, /* 15: C_ENTAG enum tag */
1465: st_Member, /* 16: C_MOE member of enum */
1466: st_Param, /* 17: C_REGPARM register parameter */
1467: st_Member, /* 18; C_FIELD bitfield */
1468: st_Nil, /* 19 */
1469: st_Nil, /* 20 */
1470: st_Nil, /* 21 */
1471: st_Nil, /* 22 */
1472: st_Nil, /* 23 */
1473: st_Nil, /* 24 */
1474: st_Nil, /* 25 */
1475: st_Nil, /* 26 */
1476: st_Nil, /* 27 */
1477: st_Nil, /* 28 */
1478: st_Nil, /* 29 */
1479: st_Nil, /* 30 */
1480: st_Nil, /* 31 */
1481: st_Nil, /* 32 */
1482: st_Nil, /* 33 */
1483: st_Nil, /* 34 */
1484: st_Nil, /* 35 */
1485: st_Nil, /* 36 */
1486: st_Nil, /* 37 */
1487: st_Nil, /* 38 */
1488: st_Nil, /* 39 */
1489: st_Nil, /* 40 */
1490: st_Nil, /* 41 */
1491: st_Nil, /* 42 */
1492: st_Nil, /* 43 */
1493: st_Nil, /* 44 */
1494: st_Nil, /* 45 */
1495: st_Nil, /* 46 */
1496: st_Nil, /* 47 */
1497: st_Nil, /* 48 */
1498: st_Nil, /* 49 */
1499: st_Nil, /* 50 */
1500: st_Nil, /* 51 */
1501: st_Nil, /* 52 */
1502: st_Nil, /* 53 */
1503: st_Nil, /* 54 */
1504: st_Nil, /* 55 */
1505: st_Nil, /* 56 */
1506: st_Nil, /* 57 */
1507: st_Nil, /* 58 */
1508: st_Nil, /* 59 */
1509: st_Nil, /* 60 */
1510: st_Nil, /* 61 */
1511: st_Nil, /* 62 */
1512: st_Nil, /* 63 */
1513: st_Nil, /* 64 */
1514: st_Nil, /* 65 */
1515: st_Nil, /* 66 */
1516: st_Nil, /* 67 */
1517: st_Nil, /* 68 */
1518: st_Nil, /* 69 */
1519: st_Nil, /* 70 */
1520: st_Nil, /* 71 */
1521: st_Nil, /* 72 */
1522: st_Nil, /* 73 */
1523: st_Nil, /* 74 */
1524: st_Nil, /* 75 */
1525: st_Nil, /* 76 */
1526: st_Nil, /* 77 */
1527: st_Nil, /* 78 */
1528: st_Nil, /* 79 */
1529: st_Nil, /* 80 */
1530: st_Nil, /* 81 */
1531: st_Nil, /* 82 */
1532: st_Nil, /* 83 */
1533: st_Nil, /* 84 */
1534: st_Nil, /* 85 */
1535: st_Nil, /* 86 */
1536: st_Nil, /* 87 */
1537: st_Nil, /* 88 */
1538: st_Nil, /* 89 */
1539: st_Nil, /* 90 */
1540: st_Nil, /* 91 */
1541: st_Nil, /* 92 */
1542: st_Nil, /* 93 */
1543: st_Nil, /* 94 */
1544: st_Nil, /* 95 */
1545: st_Nil, /* 96 */
1546: st_Nil, /* 97 */
1547: st_Nil, /* 98 */
1548: st_Nil, /* 99 */
1549: st_Block, /* 100: C_BLOCK block start/end */
1550: st_Proc, /* 101: C_FCN function start/end */
1551: st_End, /* 102: C_EOS end of struct/union/enum */
1552: st_File, /* 103: C_FILE file start */
1553: st_Nil, /* 104: C_LINE line number */
1554: st_Nil, /* 105: C_ALIAS combined type info */
1555: st_Nil, /* 106: C_HIDDEN ??? */
1556: };
1557:
1558: /* Map COFF derived types to ECOFF type qualifiers. */
1559: static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
1560: tq_Nil, /* 0: DT_NON no more qualifiers */
1561: tq_Ptr, /* 1: DT_PTR pointer */
1562: tq_Proc, /* 2: DT_FCN function */
1563: tq_Array, /* 3: DT_ARY array */
1564: };
1565:
1566:
1567: /* Keep track of different sized allocation requests. */
1568: static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1569:
1570:
1571: /* Pointers and such to the original symbol table that is read in. */
1572: static struct filehdr orig_file_header; /* global object file header */
1573:
1574: static HDRR orig_sym_hdr; /* symbolic header on input */
1575: static char *orig_linenum; /* line numbers */
1576: static DNR *orig_dense; /* dense numbers */
1577: static PDR *orig_procs; /* procedures */
1578: static SYMR *orig_local_syms; /* local symbols */
1579: static OPTR *orig_opt_syms; /* optimization symbols */
1580: static AUXU *orig_aux_syms; /* auxiliary symbols */
1581: static char *orig_local_strs; /* local strings */
1582: static char *orig_ext_strs; /* external strings */
1583: static FDR *orig_files; /* file descriptors */
1584: static symint_t *orig_rfds; /* relative file desc's */
1585: static EXTR *orig_ext_syms; /* external symbols */
1586:
1587: /* Macros to convert an index into a given object within the original
1588: symbol table. */
1589: #define CHECK(num,max,str) \
1590: (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1591:
1.1.1.4 root 1592: #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1593: #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1594: #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1595: #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1596: #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1597: #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1598: #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1599: #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1600: #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1601: #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1602: #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1.1 root 1603:
1604: /* Various other statics. */
1605: static HDRR symbolic_header; /* symbolic header */
1606: static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1607: static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1608: static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1609: static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1610: static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1611: static thead_t *cur_tag_head = (thead_t *)0; /* current tag head */
1612: static long file_offset = 0; /* current file offset */
1613: static long max_file_offset = 0; /* maximum file offset */
1614: static FILE *object_stream = (FILE *)0; /* file desc. to output .o */
1615: static FILE *obj_in_stream = (FILE *)0; /* file desc. to input .o */
1616: static char *progname = (char *)0; /* program name for errors */
1617: static char *input_name = "stdin"; /* name of input file */
1618: static char *object_name = (char *)0; /* tmp. name of object file */
1619: static char *obj_in_name = (char *)0; /* name of input object file */
1620: static char *cur_line_start = (char *)0; /* current line read in */
1621: static char *cur_line_ptr = (char *)0; /* ptr within current line */
1622: static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1623: static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1624: static long line_number = 0; /* current input line number */
1625: static int debug = 0; /* trace functions */
1626: static int version = 0; /* print version # */
1627: static int had_errors = 0; /* != 0 if errors were found */
1628: static int rename_output = 0; /* != 0 if rename output file*/
1629: static int delete_input = 0; /* != 0 if delete input after done */
1.1.1.2 root 1630: static int stabs_seen = 0; /* != 0 if stabs have been seen */
1.1 root 1631:
1632:
1633: /* Pseudo symbol to use when putting stabs into the symbol table. */
1634: #ifndef STABS_SYMBOL
1635: #define STABS_SYMBOL "@stabs"
1636: #endif
1637:
1638: static char stabs_symbol[] = STABS_SYMBOL;
1639:
1640:
1641: /* Forward reference for functions. See the definition for more details. */
1642:
1643: #ifndef STATIC
1644: #define STATIC static
1645: #endif
1646:
1647: STATIC int out_of_bounds __proto((symint_t, symint_t, const char *, int));
1648:
1649: STATIC shash_t *hash_string __proto((const char *,
1650: Ptrdiff_t,
1651: shash_t **,
1652: symint_t *));
1653:
1654: STATIC symint_t add_string __proto((varray_t *,
1655: shash_t **,
1656: const char *,
1657: const char *,
1658: shash_t **));
1659:
1660: STATIC symint_t add_local_symbol
1661: __proto((const char *,
1662: const char *,
1663: st_t,
1664: sc_t,
1665: symint_t,
1666: symint_t));
1667:
1668: STATIC symint_t add_ext_symbol __proto((const char *,
1669: const char *,
1670: st_t,
1671: sc_t,
1672: long,
1673: symint_t,
1674: int));
1675:
1676: STATIC symint_t add_aux_sym_symint
1677: __proto((symint_t));
1678:
1679: STATIC symint_t add_aux_sym_rndx
1680: __proto((int, symint_t));
1681:
1682: STATIC symint_t add_aux_sym_tir __proto((type_info_t *,
1683: hash_state_t,
1684: thash_t **));
1685:
1686: STATIC tag_t * get_tag __proto((const char *,
1687: const char *,
1688: symint_t,
1689: bt_t));
1690:
1691: STATIC void add_unknown_tag __proto((tag_t *));
1692:
1693: STATIC void add_procedure __proto((const char *,
1694: const char *));
1695:
1696: STATIC void add_file __proto((const char *,
1697: const char *));
1698:
1699: STATIC void add_bytes __proto((varray_t *,
1700: char *,
1701: Size_t));
1702:
1703: STATIC void add_varray_page __proto((varray_t *));
1704:
1705: STATIC void update_headers __proto((void));
1706:
1707: STATIC void write_varray __proto((varray_t *, off_t, const char *));
1708: STATIC void write_object __proto((void));
1709: STATIC char *st_to_string __proto((st_t));
1710: STATIC char *sc_to_string __proto((sc_t));
1711: STATIC char *read_line __proto((void));
1712: STATIC void parse_input __proto((void));
1.1.1.2 root 1713: STATIC void mark_stabs __proto((const char *));
1.1 root 1714: STATIC void parse_begin __proto((const char *));
1715: STATIC void parse_bend __proto((const char *));
1716: STATIC void parse_def __proto((const char *));
1717: STATIC void parse_end __proto((const char *));
1718: STATIC void parse_ent __proto((const char *));
1719: STATIC void parse_file __proto((const char *));
1720: STATIC void parse_stabs_common
1721: __proto((const char *, const char *, const char *));
1722: STATIC void parse_stabs __proto((const char *));
1723: STATIC void parse_stabn __proto((const char *));
1724: STATIC page_t *read_seek __proto((Size_t, off_t, const char *));
1725: STATIC void copy_object __proto((void));
1726:
1727: STATIC void catch_signal __proto((int));
1728: STATIC page_t *allocate_page __proto((void));
1729:
1730: STATIC page_t *allocate_multiple_pages
1731: __proto((Size_t));
1732:
1733: STATIC void free_multiple_pages
1734: __proto((page_t *, Size_t));
1735:
1736: #ifndef MALLOC_CHECK
1737: STATIC page_t *allocate_cluster
1738: __proto((Size_t));
1739: #endif
1740:
1741: STATIC forward_t *allocate_forward __proto((void));
1742: STATIC scope_t *allocate_scope __proto((void));
1743: STATIC shash_t *allocate_shash __proto((void));
1744: STATIC tag_t *allocate_tag __proto((void));
1745: STATIC thash_t *allocate_thash __proto((void));
1746: STATIC thead_t *allocate_thead __proto((void));
1747: STATIC vlinks_t *allocate_vlinks __proto((void));
1748:
1749: STATIC void free_forward __proto((forward_t *));
1750: STATIC void free_scope __proto((scope_t *));
1751: STATIC void free_tag __proto((tag_t *));
1752: STATIC void free_thead __proto((thead_t *));
1753:
1.1.1.4 root 1754: STATIC char *local_index __proto((const char *, int));
1755: STATIC char *local_rindex __proto((const char *, int));
1756:
1.1.1.6 root 1757: #ifndef __alpha
1.1.1.3 root 1758: extern char *sbrk __proto((int));
1759: extern PTR_T malloc __proto((Size_t));
1760: extern PTR_T calloc __proto((Size_t, Size_t));
1761: extern PTR_T realloc __proto((PTR_T, Size_t));
1762: extern void free __proto((PTR_T));
1.1.1.6 root 1763: #endif
1.1.1.3 root 1764: extern char *mktemp __proto((char *));
1765: extern long strtol __proto((const char *, char **, int));
1.1 root 1766:
1767: extern char *optarg;
1768: extern int optind;
1769: extern int opterr;
1770: extern char *version_string;
1.1.1.7 ! root 1771: #ifndef NO_SYS_SIGLIST
! 1772: #ifndef DONT_DECLARE_SYS_SIGLIST
1.1 root 1773: extern char *sys_siglist[NSIG + 1];
1.1.1.7 ! root 1774: #endif
! 1775: #endif
1.1 root 1776:
1777: #ifndef SEEK_SET /* Symbolic constants for the "fseek" function: */
1778: #define SEEK_SET 0 /* Set file pointer to offset */
1779: #define SEEK_CUR 1 /* Set file pointer to its current value plus offset */
1780: #define SEEK_END 2 /* Set file pointer to the size of the file plus offset */
1781: #endif
1782:
1783:
1784: /* List of assembler pseudo ops and beginning sequences that need
1785: special actions. Someday, this should be a hash table, and such,
1786: but for now a linear list of names and calls to memcmp will
1787: do...... */
1788:
1789: typedef struct _pseudo_ops {
1.1.1.3 root 1790: const char *name; /* pseudo-op in ascii */
1.1 root 1791: int len; /* length of name to compare */
1792: void (*func) __proto((const char *)); /* function to handle line */
1793: } pseudo_ops_t;
1794:
1795: static pseudo_ops_t pseudo_ops[] = {
1796: { "#.def", sizeof("#.def")-1, parse_def },
1797: { "#.begin", sizeof("#.begin")-1, parse_begin },
1798: { "#.bend", sizeof("#.bend")-1, parse_bend },
1799: { ".end", sizeof(".end")-1, parse_end },
1800: { ".ent", sizeof(".ent")-1, parse_ent },
1801: { ".file", sizeof(".file")-1, parse_file },
1802: { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1803: { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1804: { ".stabs", sizeof(".stabs")-1, parse_stabs },
1805: { ".stabn", sizeof(".stabn")-1, parse_stabn },
1.1.1.2 root 1806: { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1.1 root 1807: };
1808:
1809:
1810: /* Add a page to a varray object. */
1811:
1812: STATIC void
1813: add_varray_page (vp)
1814: varray_t *vp; /* varray to add page to */
1815: {
1816: vlinks_t *new_links = allocate_vlinks ();
1817:
1818: #ifdef MALLOC_CHECK
1819: if (vp->object_size > 1)
1820: new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1821: else
1822: #endif
1823: new_links->datum = allocate_page ();
1824:
1825: alloc_counts[ (int)alloc_type_varray ].total_alloc++;
1826: alloc_counts[ (int)alloc_type_varray ].total_pages++;
1827:
1828: new_links->start_index = vp->num_allocated;
1829: vp->objects_last_page = 0;
1830:
1831: if (vp->first == (vlinks_t *)0) /* first allocation? */
1832: vp->first = vp->last = new_links;
1833: else
1834: { /* 2nd or greater allocation */
1835: new_links->prev = vp->last;
1836: vp->last->next = new_links;
1837: vp->last = new_links;
1838: }
1839: }
1840:
1841:
1842: /* Compute hash code (from tree.c) */
1843:
1844: #define HASHBITS 30
1845:
1846: STATIC shash_t *
1847: hash_string (text, hash_len, hash_tbl, ret_hash_index)
1848: const char *text; /* ptr to text to hash */
1849: Ptrdiff_t hash_len; /* length of the text */
1850: shash_t **hash_tbl; /* hash table */
1851: symint_t *ret_hash_index; /* ptr to store hash index */
1852: {
1853: register unsigned long hi;
1854: register Ptrdiff_t i;
1855: register shash_t *ptr;
1856: register int first_ch = *text;
1857:
1858: hi = hash_len;
1859: for (i = 0; i < hash_len; i++)
1860: hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1861:
1862: hi &= (1 << HASHBITS) - 1;
1863: hi %= SHASH_SIZE;
1864:
1865: if (ret_hash_index != (symint_t *)0)
1866: *ret_hash_index = hi;
1867:
1868: for (ptr = hash_tbl[hi]; ptr != (shash_t *)0; ptr = ptr->next)
1869: if (hash_len == ptr->len
1870: && first_ch == ptr->string[0]
1871: && memcmp ((CPTR_T) text, (CPTR_T) ptr->string, hash_len) == 0)
1872: break;
1873:
1874: return ptr;
1875: }
1876:
1877:
1878: /* Add a string (and null pad) to one of the string tables. A
1879: consequence of hashing strings, is that we don't let strings
1880: cross page boundaries. The extra nulls will be ignored. */
1881:
1882: STATIC symint_t
1883: add_string (vp, hash_tbl, start, end_p1, ret_hash)
1884: varray_t *vp; /* string virtual array */
1885: shash_t **hash_tbl; /* ptr to hash table */
1886: const char *start; /* 1st byte in string */
1887: const char *end_p1; /* 1st byte after string */
1888: shash_t **ret_hash; /* return hash pointer */
1889: {
1890: register Ptrdiff_t len = end_p1 - start;
1891: register shash_t *hash_ptr;
1892: symint_t hi;
1893:
1894: if (len >= PAGE_USIZE)
1895: fatal ("String too big (%ld bytes)", (long) len);
1896:
1897: hash_ptr = hash_string (start, len, hash_tbl, &hi);
1898: if (hash_ptr == (shash_t *)0)
1899: {
1900: register char *p;
1901:
1902: if (vp->objects_last_page + len >= PAGE_USIZE)
1903: {
1904: vp->num_allocated =
1905: ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1906: add_varray_page (vp);
1907: }
1908:
1909: hash_ptr = allocate_shash ();
1910: hash_ptr->next = hash_tbl[hi];
1911: hash_tbl[hi] = hash_ptr;
1912:
1913: hash_ptr->len = len;
1.1.1.4 root 1914: hash_ptr->indx = vp->num_allocated;
1915: hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1.1 root 1916:
1917: vp->objects_last_page += len+1;
1918: vp->num_allocated += len+1;
1919:
1920: while (len-- > 0)
1921: *p++ = *start++;
1922:
1923: *p = '\0';
1924: }
1925:
1926: if (ret_hash != (shash_t **)0)
1927: *ret_hash = hash_ptr;
1928:
1.1.1.4 root 1929: return hash_ptr->indx;
1.1 root 1930: }
1931:
1932:
1933: /* Add a local symbol. */
1934:
1935: STATIC symint_t
1936: add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1937: const char *str_start; /* first byte in string */
1938: const char *str_end_p1; /* first byte after string */
1939: st_t type; /* symbol type */
1940: sc_t storage; /* storage class */
1941: symint_t value; /* value of symbol */
1942: symint_t indx; /* index to local/aux. syms */
1943: {
1944: register symint_t ret;
1945: register SYMR *psym;
1946: register scope_t *pscope;
1947: register thead_t *ptag_head;
1948: register tag_t *ptag;
1949: register tag_t *ptag_next;
1950: register varray_t *vp = &cur_file_ptr->symbols;
1951: register int scope_delta = 0;
1952: shash_t *hash_ptr = (shash_t *)0;
1953:
1954: if (vp->objects_last_page == vp->objects_per_page)
1955: add_varray_page (vp);
1956:
1957: psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1958:
1959: psym->value = value;
1960: psym->st = (unsigned) type;
1961: psym->sc = (unsigned) storage;
1962: psym->index = indx;
1963: psym->iss = (str_start == (const char *)0)
1964: ? 0
1965: : add_string (&cur_file_ptr->strings,
1966: &cur_file_ptr->shash_head[0],
1967: str_start,
1968: str_end_p1,
1969: &hash_ptr);
1970:
1971: ret = vp->num_allocated++;
1972:
1973: if (MIPS_IS_STAB(psym))
1974: return ret;
1975:
1976: /* Save the symbol within the hash table if this is a static
1977: item, and it has a name. */
1978: if (hash_ptr != (shash_t *)0
1979: && (type == st_Global || type == st_Static || type == st_Label
1980: || type == st_Proc || type == st_StaticProc))
1981: hash_ptr->sym_ptr = psym;
1982:
1983: /* push or pop a scope if appropriate. */
1984: switch (type)
1985: {
1986: default:
1987: break;
1988:
1989: case st_File: /* beginning of file */
1990: case st_Proc: /* procedure */
1991: case st_StaticProc: /* static procedure */
1992: case st_Block: /* begin scope */
1993: pscope = allocate_scope ();
1994: pscope->prev = cur_file_ptr->cur_scope;
1995: pscope->lsym = psym;
1996: pscope->lnumber = ret;
1997: pscope->type = type;
1998: cur_file_ptr->cur_scope = pscope;
1999:
2000: if (type != st_File)
2001: scope_delta = 1;
2002:
2003: /* For every block type except file, struct, union, or
2004: enumeration blocks, push a level on the tag stack. We omit
2005: file types, so that tags can span file boundaries. */
2006: if (type != st_File && storage != sc_Info)
2007: {
2008: ptag_head = allocate_thead ();
2009: ptag_head->first_tag = 0;
2010: ptag_head->prev = cur_tag_head;
2011: cur_tag_head = ptag_head;
2012: }
2013: break;
2014:
2015: case st_End:
2016: pscope = cur_file_ptr->cur_scope;
2017: if (pscope == (scope_t *)0)
2018: error ("internal error, too many st_End's");
2019:
2020: else
2021: {
2022: st_t begin_type = (st_t) pscope->lsym->st;
2023:
2024: if (begin_type != st_File)
2025: scope_delta = -1;
2026:
2027: /* Except for file, structure, union, or enumeration end
2028: blocks remove all tags created within this scope. */
2029: if (begin_type != st_File && storage != sc_Info)
2030: {
2031: ptag_head = cur_tag_head;
2032: cur_tag_head = ptag_head->prev;
2033:
2034: for (ptag = ptag_head->first_tag;
2035: ptag != (tag_t *)0;
2036: ptag = ptag_next)
2037: {
2038: if (ptag->forward_ref != (forward_t *)0)
2039: add_unknown_tag (ptag);
2040:
2041: ptag_next = ptag->same_block;
2042: ptag->hash_ptr->tag_ptr = ptag->same_name;
2043: free_tag (ptag);
2044: }
2045:
2046: free_thead (ptag_head);
2047: }
2048:
2049: cur_file_ptr->cur_scope = pscope->prev;
2050: psym->index = pscope->lnumber; /* blk end gets begin sym # */
2051:
2052: if (storage != sc_Info)
2053: psym->iss = pscope->lsym->iss; /* blk end gets same name */
2054:
2055: if (begin_type == st_File || begin_type == st_Block)
1.1.1.4 root 2056: pscope->lsym->index = ret+1; /* block begin gets next sym # */
1.1 root 2057:
2058: /* Functions push two or more aux words as follows:
2059: 1st word: index+1 of the end symbol
2060: 2nd word: type of the function (plus any aux words needed).
2061: Also, tie the external pointer back to the function begin symbol. */
2062: else
2063: {
2064: symint_t type;
2065: pscope->lsym->index = add_aux_sym_symint (ret+1);
2066: type = add_aux_sym_tir (&last_func_type_info,
2067: hash_no,
2068: &cur_file_ptr->thash_head[0]);
2069: if (last_func_eptr)
2070: {
2071: last_func_eptr->ifd = cur_file_ptr->file_index;
1.1.1.6 root 2072:
2073: /* The index for an external st_Proc symbol is the index
2074: of the st_Proc symbol in the local symbol table. */
2075: last_func_eptr->asym.index = psym->index;
1.1 root 2076: }
2077: }
2078:
2079: free_scope (pscope);
2080: }
2081: }
2082:
2083: cur_file_ptr->nested_scopes += scope_delta;
2084:
2085: if (debug && type != st_File
2086: && (debug > 2 || type == st_Block || type == st_End
2087: || type == st_Proc || type == st_StaticProc))
2088: {
2089: char *sc_str = sc_to_string (storage);
2090: char *st_str = st_to_string (type);
2091: int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2092:
2093: fprintf (stderr,
2094: "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2095: value, depth, sc_str);
2096:
2097: if (str_start && str_end_p1 - str_start > 0)
2098: fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2099: else
2100: {
2101: Size_t len = strlen (st_str);
2102: fprintf (stderr, " st= %.*s\n", len-1, st_str);
2103: }
2104: }
2105:
2106: return ret;
2107: }
2108:
2109:
2110: /* Add an external symbol. */
2111:
2112: STATIC symint_t
2113: add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
2114: const char *str_start; /* first byte in string */
2115: const char *str_end_p1; /* first byte after string */
2116: st_t type; /* symbol type */
2117: sc_t storage; /* storage class */
2118: long value; /* value of symbol */
2119: symint_t indx; /* index to local/aux. syms */
2120: int ifd; /* file index */
2121: {
2122: register EXTR *psym;
2123: register varray_t *vp = &ext_symbols;
2124: shash_t *hash_ptr = (shash_t *)0;
2125:
2126: if (debug > 1)
2127: {
2128: char *sc_str = sc_to_string (storage);
2129: char *st_str = st_to_string (type);
2130:
2131: fprintf (stderr,
2132: "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2133: value, ifd, sc_str);
2134:
2135: if (str_start && str_end_p1 - str_start > 0)
2136: fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2137: else
2138: fprintf (stderr, " st= %s\n", st_str);
2139: }
2140:
2141: if (vp->objects_last_page == vp->objects_per_page)
2142: add_varray_page (vp);
2143:
2144: psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2145:
2146: psym->ifd = ifd;
2147: psym->asym.value = value;
2148: psym->asym.st = (unsigned) type;
2149: psym->asym.sc = (unsigned) storage;
2150: psym->asym.index = indx;
2151: psym->asym.iss = (str_start == (const char *)0)
2152: ? 0
2153: : add_string (&ext_strings,
2154: &ext_str_hash[0],
2155: str_start,
2156: str_end_p1,
2157: &hash_ptr);
2158:
2159: hash_ptr->esym_ptr = psym;
2160: return vp->num_allocated++;
2161: }
2162:
2163:
2164: /* Add an auxiliary symbol (passing a symint). */
2165:
2166: STATIC symint_t
2167: add_aux_sym_symint (aux_word)
1.1.1.3 root 2168: symint_t aux_word; /* auxiliary information word */
1.1 root 2169: {
2170: register AUXU *aux_ptr;
2171: register efdr_t *file_ptr = cur_file_ptr;
2172: register varray_t *vp = &file_ptr->aux_syms;
2173:
2174: if (vp->objects_last_page == vp->objects_per_page)
2175: add_varray_page (vp);
2176:
2177: aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2178: aux_ptr->isym = aux_word;
2179:
2180: return vp->num_allocated++;
2181: }
2182:
2183:
2184: /* Add an auxiliary symbol (passing a file/symbol index combo). */
2185:
2186: STATIC symint_t
2187: add_aux_sym_rndx (file_index, sym_index)
2188: int file_index;
2189: symint_t sym_index;
2190: {
2191: register AUXU *aux_ptr;
2192: register efdr_t *file_ptr = cur_file_ptr;
2193: register varray_t *vp = &file_ptr->aux_syms;
2194:
2195: if (vp->objects_last_page == vp->objects_per_page)
2196: add_varray_page (vp);
2197:
2198: aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2199: aux_ptr->rndx.rfd = file_index;
2200: aux_ptr->rndx.index = sym_index;
2201:
2202: return vp->num_allocated++;
2203: }
2204:
2205:
2206: /* Add an auxiliary symbol (passing the basic type and possibly
2207: type qualifiers). */
2208:
2209: STATIC symint_t
2210: add_aux_sym_tir (t, state, hash_tbl)
2211: type_info_t *t; /* current type information */
2212: hash_state_t state; /* whether to hash type or not */
2213: thash_t **hash_tbl; /* pointer to hash table to use */
2214: {
2215: register AUXU *aux_ptr;
2216: register efdr_t *file_ptr = cur_file_ptr;
2217: register varray_t *vp = &file_ptr->aux_syms;
2218: static AUXU init_aux;
2219: symint_t ret;
2220: int i;
2221: AUXU aux;
2222:
2223: aux = init_aux;
2224: aux.ti.bt = (int) t->basic_type;
2225: aux.ti.continued = 0;
2226: aux.ti.fBitfield = t->bitfield;
2227:
2228: aux.ti.tq0 = (int) t->type_qualifiers[0];
2229: aux.ti.tq1 = (int) t->type_qualifiers[1];
2230: aux.ti.tq2 = (int) t->type_qualifiers[2];
2231: aux.ti.tq3 = (int) t->type_qualifiers[3];
2232: aux.ti.tq4 = (int) t->type_qualifiers[4];
2233: aux.ti.tq5 = (int) t->type_qualifiers[5];
2234:
2235:
2236: /* For anything that adds additional information, we must not hash,
2237: so check here, and reset our state. */
2238:
2239: if (state != hash_no
2240: && (t->type_qualifiers[0] == tq_Array
2241: || t->type_qualifiers[1] == tq_Array
2242: || t->type_qualifiers[2] == tq_Array
2243: || t->type_qualifiers[3] == tq_Array
2244: || t->type_qualifiers[4] == tq_Array
2245: || t->type_qualifiers[5] == tq_Array
2246: || t->basic_type == bt_Struct
2247: || t->basic_type == bt_Union
2248: || t->basic_type == bt_Enum
2249: || t->bitfield
2250: || t->num_dims > 0))
2251: state = hash_no;
2252:
2253: /* See if we can hash this type, and save some space, but some types
2254: can't be hashed (because they contain arrays or continuations),
2255: and others can be put into the hash list, but cannot use existing
2256: types because other aux entries precede this one. */
2257:
2258: if (state != hash_no)
2259: {
2260: register thash_t *hash_ptr;
2261: register symint_t hi;
2262:
2263: hi = aux.isym & ((1 << HASHBITS) - 1);
2264: hi %= THASH_SIZE;
2265:
2266: for (hash_ptr = hash_tbl[hi];
2267: hash_ptr != (thash_t *)0;
2268: hash_ptr = hash_ptr->next)
2269: {
2270: if (aux.isym == hash_ptr->type.isym)
2271: break;
2272: }
2273:
2274: if (hash_ptr != (thash_t *)0 && state == hash_yes)
1.1.1.4 root 2275: return hash_ptr->indx;
1.1 root 2276:
2277: if (hash_ptr == (thash_t *)0)
2278: {
2279: hash_ptr = allocate_thash ();
2280: hash_ptr->next = hash_tbl[hi];
2281: hash_ptr->type = aux;
1.1.1.4 root 2282: hash_ptr->indx = vp->num_allocated;
1.1 root 2283: hash_tbl[hi] = hash_ptr;
2284: }
2285: }
2286:
2287: /* Everything is set up, add the aux symbol. */
2288: if (vp->objects_last_page == vp->objects_per_page)
2289: add_varray_page (vp);
2290:
2291: aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2292: *aux_ptr = aux;
2293:
2294: ret = vp->num_allocated++;
2295:
2296: /* Add bitfield length if it exists.
2297:
2298: NOTE: Mips documentation claims bitfield goes at the end of the
2299: AUX record, but the DECstation compiler emits it here.
2300: (This would only make a difference for enum bitfields.)
2301:
2302: Also note: We use the last size given since gcc may emit 2
2303: for an enum bitfield. */
2304:
2305: if (t->bitfield)
2306: (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2307:
2308:
2309: /* Add tag information if needed. Structure, union, and enum
2310: references add 2 aux symbols: a [file index, symbol index]
2311: pointer to the structure type, and the current file index. */
2312:
2313: if (t->basic_type == bt_Struct
2314: || t->basic_type == bt_Union
2315: || t->basic_type == bt_Enum)
2316: {
2317: register symint_t file_index = t->tag_ptr->ifd;
1.1.1.4 root 2318: register symint_t sym_index = t->tag_ptr->indx;
1.1 root 2319:
2320: if (t->unknown_tag)
2321: {
2322: (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2323: (void) add_aux_sym_symint ((symint_t)-1);
2324: }
2325: else if (sym_index != indexNil)
2326: {
2327: (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2328: (void) add_aux_sym_symint (file_index);
2329: }
2330: else
2331: {
2332: register forward_t *forward_ref = allocate_forward ();
2333:
2334: forward_ref->type_ptr = aux_ptr;
2335: forward_ref->next = t->tag_ptr->forward_ref;
2336: t->tag_ptr->forward_ref = forward_ref;
2337:
2338: (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2339: forward_ref->index_ptr
2340: = &vp->last->datum->aux[ vp->objects_last_page - 1];
2341:
2342: (void) add_aux_sym_symint (file_index);
2343: forward_ref->ifd_ptr
2344: = &vp->last->datum->aux[ vp->objects_last_page - 1];
2345: }
2346: }
2347:
2348: /* Add information about array bounds if they exist. */
2349: for (i = 0; i < t->num_dims; i++)
2350: {
2351: (void) add_aux_sym_rndx (ST_RFDESCAPE,
2352: cur_file_ptr->int_type);
2353:
2354: (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2355: (void) add_aux_sym_symint ((symint_t)0); /* low bound */
2356: (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2357: (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2358: ? 0
2359: : (t->sizes[i] * 8) / t->dimensions[i]);
2360: };
2361:
2362: /* NOTE: Mips documentation claism that the bitfield width goes here.
2363: But it needs to be emitted earlier. */
2364:
2365: return ret;
2366: }
2367:
2368:
2369: /* Add a tag to the tag table (unless it already exists). */
2370:
2371: STATIC tag_t *
1.1.1.4 root 2372: get_tag (tag_start, tag_end_p1, indx, basic_type)
1.1 root 2373: const char *tag_start; /* 1st byte of tag name */
2374: const char *tag_end_p1; /* 1st byte after tag name */
1.1.1.4 root 2375: symint_t indx; /* index of tag start block */
1.1 root 2376: bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2377: {
2378: shash_t *hash_ptr;
2379: tag_t *tag_ptr;
2380: hash_ptr = hash_string (tag_start,
2381: tag_end_p1 - tag_start,
2382: &tag_hash[0],
2383: (symint_t *)0);
2384:
2385: if (hash_ptr != (shash_t *)0
2386: && hash_ptr->tag_ptr != (tag_t *)0)
2387: {
2388: tag_ptr = hash_ptr->tag_ptr;
1.1.1.4 root 2389: if (indx != indexNil)
1.1 root 2390: {
2391: tag_ptr->basic_type = basic_type;
2392: tag_ptr->ifd = cur_file_ptr->file_index;
1.1.1.4 root 2393: tag_ptr->indx = indx;
1.1 root 2394: }
2395: return tag_ptr;
2396: }
2397:
2398: (void) add_string (&tag_strings,
2399: &tag_hash[0],
2400: tag_start,
2401: tag_end_p1,
2402: &hash_ptr);
2403:
2404: tag_ptr = allocate_tag ();
2405: tag_ptr->forward_ref = (forward_t *) 0;
2406: tag_ptr->hash_ptr = hash_ptr;
2407: tag_ptr->same_name = hash_ptr->tag_ptr;
2408: tag_ptr->basic_type = basic_type;
1.1.1.4 root 2409: tag_ptr->indx = indx;
2410: tag_ptr->ifd = (indx == indexNil) ? -1 : cur_file_ptr->file_index;
1.1 root 2411: tag_ptr->same_block = cur_tag_head->first_tag;
2412:
2413: cur_tag_head->first_tag = tag_ptr;
2414: hash_ptr->tag_ptr = tag_ptr;
2415:
2416: return tag_ptr;
2417: }
2418:
2419:
2420: /* Add an unknown {struct, union, enum} tag. */
2421:
2422: STATIC void
2423: add_unknown_tag (ptag)
2424: tag_t *ptag; /* pointer to tag information */
2425: {
2426: shash_t *hash_ptr = ptag->hash_ptr;
2427: char *name_start = hash_ptr->string;
2428: char *name_end_p1 = name_start + hash_ptr->len;
2429: forward_t *f_next = ptag->forward_ref;
2430: forward_t *f_cur;
2431: int sym_index;
2432: int file_index = cur_file_ptr->file_index;
2433:
2434: if (debug > 1)
2435: {
2436: char *agg_type = "{unknown aggregate type}";
2437: switch (ptag->basic_type)
2438: {
2439: case bt_Struct: agg_type = "struct"; break;
2440: case bt_Union: agg_type = "union"; break;
2441: case bt_Enum: agg_type = "enum"; break;
2442: default: break;
2443: }
2444:
2445: fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2446: hash_ptr->len, name_start);
2447: }
2448:
2449: sym_index = add_local_symbol (name_start,
2450: name_end_p1,
2451: st_Block,
2452: sc_Info,
2453: (symint_t)0,
2454: (symint_t)0);
2455:
2456: (void) add_local_symbol (name_start,
2457: name_end_p1,
2458: st_End,
2459: sc_Info,
2460: (symint_t)0,
2461: (symint_t)0);
2462:
2463: while (f_next != (forward_t *)0)
2464: {
2465: f_cur = f_next;
2466: f_next = f_next->next;
2467:
2468: f_cur->ifd_ptr->isym = file_index;
2469: f_cur->index_ptr->rndx.index = sym_index;
2470:
2471: free_forward (f_cur);
2472: }
2473:
2474: return;
2475: }
2476:
2477:
2478: /* Add a procedure to the current file's list of procedures, and record
2479: this is the current procedure. If the assembler created a PDR for
2480: this procedure, use that to initialize the current PDR. */
2481:
2482: STATIC void
2483: add_procedure (func_start, func_end_p1)
2484: const char *func_start; /* 1st byte of func name */
2485: const char *func_end_p1; /* 1st byte after func name */
2486: {
2487: register PDR *new_proc_ptr;
2488: register efdr_t *file_ptr = cur_file_ptr;
2489: register varray_t *vp = &file_ptr->procs;
2490: register symint_t value = 0;
2491: register st_t proc_type = st_Proc;
2492: register shash_t *shash_ptr = hash_string (func_start,
2493: func_end_p1 - func_start,
2494: &orig_str_hash[0],
2495: (symint_t *)0);
2496:
2497: if (debug)
2498: fputc ('\n', stderr);
2499:
2500: if (vp->objects_last_page == vp->objects_per_page)
2501: add_varray_page (vp);
2502:
2503: cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2504:
2505: vp->num_allocated++;
2506:
2507:
2508: /* Did the assembler create this procedure? If so, get the PDR information. */
2509: cur_oproc_ptr = (PDR *)0;
2510: if (shash_ptr != (shash_t *)0)
2511: {
2512: register PDR *old_proc_ptr = shash_ptr->proc_ptr;
2513: register SYMR *sym_ptr = shash_ptr->sym_ptr;
2514:
2515: if (old_proc_ptr != (PDR *)0
2516: && sym_ptr != (SYMR *)0
2517: && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
2518: {
2519: cur_oproc_begin = sym_ptr;
2520: cur_oproc_end = shash_ptr->end_ptr;
2521: value = sym_ptr->value;
2522:
2523: cur_oproc_ptr = old_proc_ptr;
2524: proc_type = (st_t)sym_ptr->st;
2525: *new_proc_ptr = *old_proc_ptr; /* initialize */
2526: }
2527: }
2528:
2529: if (cur_oproc_ptr == (PDR *)0)
2530: error ("Did not find a PDR block for %.*s", func_end_p1 - func_start, func_start);
2531:
2532: /* Determine the start of symbols. */
2533: new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2534:
2535: /* Push the start of the function. */
2536: (void) add_local_symbol (func_start, func_end_p1,
2537: proc_type, sc_Text,
2538: value,
2539: (symint_t)0);
2540: }
2541:
2542:
2543: /* Add a new filename, and set up all of the file relative
2544: virtual arrays (strings, symbols, aux syms, etc.). Record
2545: where the current file structure lives. */
2546:
2547: STATIC void
2548: add_file (file_start, file_end_p1)
2549: const char *file_start; /* first byte in string */
2550: const char *file_end_p1; /* first byte after string */
2551: {
2552: static char zero_bytes[2] = { '\0', '\0' };
2553:
2554: register Ptrdiff_t len = file_end_p1 - file_start;
2555: register int first_ch = *file_start;
2556: register efdr_t *file_ptr;
2557:
2558: if (debug)
2559: fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2560:
2561: /* See if the file has already been created. */
2562: for (file_ptr = first_file;
2563: file_ptr != (efdr_t *)0;
2564: file_ptr = file_ptr->next_file)
2565: {
2566: if (first_ch == file_ptr->name[0]
2567: && file_ptr->name[len] == '\0'
2568: && memcmp ((CPTR_T) file_start, (CPTR_T) file_ptr->name, len) == 0)
2569: {
2570: cur_file_ptr = file_ptr;
2571: break;
2572: }
2573: }
2574:
2575: /* If this is a new file, create it. */
2576: if (file_ptr == (efdr_t *)0)
2577: {
2578: if (file_desc.objects_last_page == file_desc.objects_per_page)
2579: add_varray_page (&file_desc);
2580:
2581: file_ptr = cur_file_ptr =
2582: &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2583: *file_ptr = init_file;
2584:
2585: file_ptr->file_index = file_desc.num_allocated++;
2586:
2587: /* Allocate the string hash table. */
2588: file_ptr->shash_head = (shash_t **) allocate_page ();
2589:
2590: /* Make sure 0 byte in string table is null */
2591: add_string (&file_ptr->strings,
2592: &file_ptr->shash_head[0],
2593: &zero_bytes[0],
2594: &zero_bytes[0],
2595: (shash_t **)0);
2596:
2597: if (file_end_p1 - file_start > PAGE_USIZE-2)
2598: fatal ("Filename goes over one page boundary.");
2599:
2600: /* Push the start of the filename. We assume that the filename
2601: will be stored at string offset 1. */
2602: (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2603: (symint_t)0, (symint_t)0);
2604: file_ptr->fdr.rss = 1;
2605: file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2606: file_ptr->name_len = file_end_p1 - file_start;
2607:
2608: /* Update the linked list of file descriptors. */
2609: *last_file_ptr = file_ptr;
2610: last_file_ptr = &file_ptr->next_file;
2611:
2612: /* Add void & int types to the file (void should be first to catch
2613: errant 0's within the index fields). */
2614: file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2615: hash_yes,
2616: &cur_file_ptr->thash_head[0]);
2617:
2618: file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2619: hash_yes,
2620: &cur_file_ptr->thash_head[0]);
2621: }
2622: }
2623:
2624:
2625: /* Add a stream of random bytes to a varray. */
2626:
2627: STATIC void
2628: add_bytes (vp, input_ptr, nitems)
2629: varray_t *vp; /* virtual array to add too */
2630: char *input_ptr; /* start of the bytes */
2631: Size_t nitems; /* # items to move */
2632: {
2633: register Size_t move_items;
2634: register Size_t move_bytes;
2635: register char *ptr;
2636:
2637: while (nitems > 0)
2638: {
2639: if (vp->objects_last_page >= vp->objects_per_page)
2640: add_varray_page (vp);
2641:
2642: ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2643: move_items = vp->objects_per_page - vp->objects_last_page;
2644: if (move_items > nitems)
2645: move_items = nitems;
2646:
2647: move_bytes = move_items * vp->object_size;
2648: nitems -= move_items;
2649:
2650: if (move_bytes >= 32)
2651: {
2652: (void) memcpy ((PTR_T) ptr, (CPTR_T) input_ptr, move_bytes);
2653: input_ptr += move_bytes;
2654: }
2655: else
2656: {
2657: while (move_bytes-- > 0)
2658: *ptr++ = *input_ptr++;
2659: }
2660: }
2661: }
2662:
2663:
2664: /* Convert storage class to string. */
2665:
2666: STATIC char *
2667: sc_to_string(storage_class)
2668: sc_t storage_class;
2669: {
2670: switch(storage_class)
2671: {
2672: case sc_Nil: return "Nil,";
2673: case sc_Text: return "Text,";
2674: case sc_Data: return "Data,";
2675: case sc_Bss: return "Bss,";
2676: case sc_Register: return "Register,";
2677: case sc_Abs: return "Abs,";
2678: case sc_Undefined: return "Undefined,";
2679: case sc_CdbLocal: return "CdbLocal,";
2680: case sc_Bits: return "Bits,";
2681: case sc_CdbSystem: return "CdbSystem,";
2682: case sc_RegImage: return "RegImage,";
2683: case sc_Info: return "Info,";
2684: case sc_UserStruct: return "UserStruct,";
2685: case sc_SData: return "SData,";
2686: case sc_SBss: return "SBss,";
2687: case sc_RData: return "RData,";
2688: case sc_Var: return "Var,";
2689: case sc_Common: return "Common,";
2690: case sc_SCommon: return "SCommon,";
2691: case sc_VarRegister: return "VarRegister,";
2692: case sc_Variant: return "Variant,";
2693: case sc_SUndefined: return "SUndefined,";
2694: case sc_Init: return "Init,";
2695: case sc_Max: return "Max,";
2696: }
2697:
2698: return "???,";
2699: }
2700:
2701:
2702: /* Convert symbol type to string. */
2703:
2704: STATIC char *
2705: st_to_string(symbol_type)
2706: st_t symbol_type;
2707: {
2708: switch(symbol_type)
2709: {
2710: case st_Nil: return "Nil,";
2711: case st_Global: return "Global,";
2712: case st_Static: return "Static,";
2713: case st_Param: return "Param,";
2714: case st_Local: return "Local,";
2715: case st_Label: return "Label,";
2716: case st_Proc: return "Proc,";
2717: case st_Block: return "Block,";
2718: case st_End: return "End,";
2719: case st_Member: return "Member,";
2720: case st_Typedef: return "Typedef,";
2721: case st_File: return "File,";
2722: case st_RegReloc: return "RegReloc,";
2723: case st_Forward: return "Forward,";
2724: case st_StaticProc: return "StaticProc,";
2725: case st_Constant: return "Constant,";
2726: case st_Str: return "String,";
2727: case st_Number: return "Number,";
2728: case st_Expr: return "Expr,";
2729: case st_Type: return "Type,";
2730: case st_Max: return "Max,";
2731: }
2732:
2733: return "???,";
2734: }
2735:
2736:
1.1.1.3 root 2737: /* Read a line from standard input, and return the start of the buffer
2738: (which is grows if the line is too big). We split lines at the
1.1.1.4 root 2739: semi-colon, and return each logical line independently. */
1.1 root 2740:
2741: STATIC char *
2742: read_line __proto((void))
2743: {
1.1.1.3 root 2744: static int line_split_p = 0;
2745: register int string_p = 0;
2746: register int comment_p = 0;
1.1 root 2747: register int ch;
2748: register char *ptr;
2749:
2750: if (cur_line_start == (char *)0)
2751: { /* allocate initial page */
2752: cur_line_start = (char *) allocate_page ();
2753: cur_line_alloc = PAGE_SIZE;
2754: }
2755:
1.1.1.3 root 2756: if (!line_split_p)
2757: line_number++;
2758:
2759: line_split_p = 0;
1.1 root 2760: cur_line_nbytes = 0;
2761:
2762: for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2763: {
2764: if (++cur_line_nbytes >= cur_line_alloc-1)
2765: {
2766: register int num_pages = cur_line_alloc / PAGE_SIZE;
2767: register char *old_buffer = cur_line_start;
2768:
2769: cur_line_alloc += PAGE_SIZE;
2770: cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2771: memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2772:
2773: ptr = cur_line_start + cur_line_nbytes - 1;
2774: }
2775:
2776: if (ch == '\n')
2777: {
2778: *ptr++ = '\n';
2779: *ptr = '\0';
2780: cur_line_ptr = cur_line_start;
2781: return cur_line_ptr;
2782: }
1.1.1.3 root 2783:
2784: else if (ch == '\0')
2785: error ("Null character found in input");
2786:
2787: else if (!comment_p)
2788: {
2789: if (ch == '"')
2790: string_p = !string_p;
2791:
2792: else if (ch == '#')
2793: comment_p++;
2794:
1.1.1.4 root 2795: else if (ch == ';' && !string_p)
1.1.1.3 root 2796: {
2797: line_split_p = 1;
2798: *ptr++ = '\n';
2799: *ptr = '\0';
2800: cur_line_ptr = cur_line_start;
2801: return cur_line_ptr;
2802: }
2803: }
1.1 root 2804: }
2805:
2806: if (ferror (stdin))
2807: pfatal_with_name (input_name);
2808:
2809: cur_line_ptr = (char *)0;
2810: return (char *)0;
2811: }
2812:
2813:
2814: /* Parse #.begin directives which have a label as the first argument
2815: which gives the location of the start of the block. */
2816:
2817: STATIC void
2818: parse_begin (start)
2819: const char *start; /* start of directive */
2820: {
2821: const char *end_p1; /* end of label */
2822: int ch;
2823: shash_t *hash_ptr; /* hash pointer to lookup label */
2824:
2825: if (cur_file_ptr == (efdr_t *)0)
2826: {
1.1.1.2 root 2827: error ("#.begin directive without a preceding .file directive");
1.1 root 2828: return;
2829: }
2830:
2831: if (cur_proc_ptr == (PDR *)0)
2832: {
1.1.1.2 root 2833: error ("#.begin directive without a preceding .ent directive");
1.1 root 2834: return;
2835: }
2836:
2837: for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2838: ;
2839:
2840: hash_ptr = hash_string (start,
2841: end_p1 - start,
2842: &orig_str_hash[0],
2843: (symint_t *)0);
2844:
2845: if (hash_ptr == (shash_t *)0)
2846: {
2847: error ("Label %.*s not found for #.begin", end_p1 - start, start);
2848: return;
2849: }
2850:
2851: if (cur_oproc_begin == (SYMR *)0)
2852: {
2853: error ("Procedure table %.*s not found for #.begin", end_p1 - start, start);
2854: return;
2855: }
2856:
2857: (void) add_local_symbol ((const char *)0, (const char *)0,
2858: st_Block, sc_Text,
2859: (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2860: (symint_t)0);
2861: }
2862:
2863:
2864: /* Parse #.bend directives which have a label as the first argument
2865: which gives the location of the end of the block. */
2866:
2867: STATIC void
2868: parse_bend (start)
2869: const char *start; /* start of directive */
2870: {
2871: const char *end_p1; /* end of label */
2872: int ch;
2873: shash_t *hash_ptr; /* hash pointer to lookup label */
2874:
2875: if (cur_file_ptr == (efdr_t *)0)
2876: {
1.1.1.2 root 2877: error ("#.begin directive without a preceding .file directive");
1.1 root 2878: return;
2879: }
2880:
2881: if (cur_proc_ptr == (PDR *)0)
2882: {
1.1.1.2 root 2883: error ("#.bend directive without a preceding .ent directive");
1.1 root 2884: return;
2885: }
2886:
2887: for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2888: ;
2889:
2890: hash_ptr = hash_string (start,
2891: end_p1 - start,
2892: &orig_str_hash[0],
2893: (symint_t *)0);
2894:
2895: if (hash_ptr == (shash_t *)0)
2896: {
2897: error ("Label %.*s not found for #.bend", end_p1 - start, start);
2898: return;
2899: }
2900:
2901: if (cur_oproc_begin == (SYMR *)0)
2902: {
2903: error ("Procedure table %.*s not found for #.bend", end_p1 - start, start);
2904: return;
2905: }
2906:
2907: (void) add_local_symbol ((const char *)0, (const char *)0,
2908: st_End, sc_Text,
2909: (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2910: (symint_t)0);
2911: }
2912:
2913:
2914: /* Parse #.def directives, which are contain standard COFF subdirectives
2915: to describe the debugging format. These subdirectives include:
2916:
2917: .scl specify storage class
2918: .val specify a value
2919: .endef specify end of COFF directives
2920: .type specify the type
2921: .size specify the size of an array
2922: .dim specify an array dimension
2923: .tag specify a tag for a struct, union, or enum. */
2924:
2925: STATIC void
2926: parse_def (name_start)
2927: const char *name_start; /* start of directive */
2928: {
2929: const char *dir_start; /* start of current directive*/
2930: const char *dir_end_p1; /* end+1 of current directive*/
2931: const char *arg_start; /* start of current argument */
2932: const char *arg_end_p1; /* end+1 of current argument */
2933: const char *name_end_p1; /* end+1 of label */
2934: const char *tag_start = (const char *)0; /* start of tag name */
2935: const char *tag_end_p1 = (const char *)0; /* end+1 of tag name */
2936: sc_t storage_class = sc_Nil;
2937: st_t symbol_type = st_Nil;
2938: type_info_t t;
2939: EXTR *eptr = (EXTR *)0; /* ext. sym equivalent to def*/
2940: int is_function = 0; /* != 0 if function */
2941: symint_t value = 0;
1.1.1.4 root 2942: symint_t indx = cur_file_ptr->void_type;
1.1 root 2943: int error_line = 0;
2944: symint_t arg_number;
2945: symint_t temp_array[ N_TQ ];
2946: int arg_was_number;
2947: int ch, i;
2948: Ptrdiff_t len;
2949:
2950: static int inside_enumeration = 0; /* is this an enumeration? */
2951:
2952:
2953: /* Initialize the type information. */
2954: t = type_info_init;
2955:
2956:
2957: /* Search for the end of the name being defined. */
1.1.1.4 root 2958: /* Allow spaces and such in names for G++ templates, which produce stabs
2959: that look like:
2960:
2961: #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2962:
2963: for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2964: ;
2965:
2966: if (ch == '\0')
1.1 root 2967: {
1.1.1.4 root 2968: error_line = __LINE__;
2969: saber_stop ();
2970: goto bomb_out;
1.1 root 2971: }
2972:
2973: /* Parse the remaining subdirectives now. */
2974: dir_start = name_end_p1+1;
2975: for (;;)
2976: {
2977: while ((ch = *dir_start) == ' ' || ch == '\t')
2978: ++dir_start;
2979:
2980: if (ch != '.')
2981: {
2982: error_line = __LINE__;
2983: saber_stop ();
2984: goto bomb_out;
2985: }
2986:
2987: /* Are we done? */
2988: if (dir_start[1] == 'e'
2989: && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2990: break;
2991:
2992: /* Pick up the subdirective now */
2993: for (dir_end_p1 = dir_start+1;
2994: (ch = *dir_end_p1) != ' ' && ch != '\t';
2995: dir_end_p1++)
2996: {
2997: if (ch == '\0' || isspace (ch))
2998: {
2999: error_line = __LINE__;
3000: saber_stop ();
3001: goto bomb_out;
3002: }
3003: }
3004:
3005: /* Pick up the subdirective argument now. */
3006: arg_was_number = arg_number = 0;
3007: arg_end_p1 = (const char *)0;
3008: arg_start = dir_end_p1+1;
3009: ch = *arg_start;
3010: while (ch == ' ' || ch == '\t')
3011: ch = *++arg_start;
3012:
3013: if (isdigit (ch) || ch == '-' || ch == '+')
3014: {
3015: int ch2;
3016: arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3017: if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3018: arg_was_number++;
3019: }
3020:
3021: else if (ch == '\0' || isspace (ch))
3022: {
3023: error_line = __LINE__;
3024: saber_stop ();
3025: goto bomb_out;
3026: }
3027:
3028: if (!arg_was_number)
1.1.1.4 root 3029: {
3030: /* Allow spaces and such in names for G++ templates. */
3031: for (arg_end_p1 = arg_start+1;
3032: (ch = *arg_end_p1) != ';' && ch != '\0';
3033: arg_end_p1++)
3034: ;
1.1 root 3035:
1.1.1.4 root 3036: if (ch == '\0')
3037: {
3038: error_line = __LINE__;
3039: saber_stop ();
3040: goto bomb_out;
3041: }
3042: }
1.1 root 3043:
3044: /* Classify the directives now. */
3045: len = dir_end_p1 - dir_start;
3046: switch (dir_start[1])
3047: {
3048: default:
3049: error_line = __LINE__;
3050: saber_stop ();
3051: goto bomb_out;
3052:
3053: case 'd':
3054: if (len == sizeof (".dim")-1
3055: && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
3056: && arg_was_number)
3057: {
3058: symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3059:
3060: *t_ptr = arg_number;
3061: while (*arg_end_p1 == ',' && arg_was_number)
3062: {
3063: arg_start = arg_end_p1+1;
3064: ch = *arg_start;
3065: while (ch == ' ' || ch == '\t')
3066: ch = *++arg_start;
3067:
3068: arg_was_number = 0;
3069: if (isdigit (ch) || ch == '-' || ch == '+')
3070: {
3071: int ch2;
3072: arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3073: if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3074: arg_was_number++;
3075:
3076: if (t_ptr == &temp_array[0])
3077: {
3078: error_line = __LINE__;
3079: saber_stop ();
3080: goto bomb_out;
3081: }
3082:
3083: *--t_ptr = arg_number;
3084: }
3085: }
3086:
3087: /* Reverse order of dimensions. */
3088: while (t_ptr <= &temp_array[ N_TQ-1 ])
3089: {
3090: if (t.num_dims >= N_TQ-1)
3091: {
3092: error_line = __LINE__;
3093: saber_stop ();
3094: goto bomb_out;
3095: }
3096:
3097: t.dimensions[ t.num_dims++ ] = *t_ptr++;
3098: }
3099: break;
3100: }
3101: else
3102: {
3103: error_line = __LINE__;
3104: saber_stop ();
3105: goto bomb_out;
3106: }
3107:
3108:
3109: case 's':
3110: if (len == sizeof (".scl")-1
3111: && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3112: && arg_was_number
3113: && arg_number < ((symint_t) C_MAX))
3114: {
3115: /* If the symbol is a static or external, we have
3116: already gotten the appropriate type and class, so
3117: make sure we don't override those values. This is
3118: needed because there are some type and classes that
3119: are not in COFF, such as short data, etc. */
3120: if (symbol_type == st_Nil)
3121: {
3122: symbol_type = map_coff_sym_type[arg_number];
3123: storage_class = map_coff_storage [arg_number];
3124: }
3125: break;
3126: }
3127:
3128: else if (len == sizeof (".size")-1
3129: && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3130: && arg_was_number)
3131: {
3132: symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3133:
3134: *t_ptr = arg_number;
3135: while (*arg_end_p1 == ',' && arg_was_number)
3136: {
3137: arg_start = arg_end_p1+1;
3138: ch = *arg_start;
3139: while (ch == ' ' || ch == '\t')
3140: ch = *++arg_start;
3141:
3142: arg_was_number = 0;
3143: if (isdigit (ch) || ch == '-' || ch == '+')
3144: {
3145: int ch2;
3146: arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3147: if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3148: arg_was_number++;
3149:
3150: if (t_ptr == &temp_array[0])
3151: {
3152: error_line = __LINE__;
3153: saber_stop ();
3154: goto bomb_out;
3155: }
3156:
3157: *--t_ptr = arg_number;
3158: }
3159: }
3160:
3161: /* Reverse order of sizes. */
3162: while (t_ptr <= &temp_array[ N_TQ-1 ])
3163: {
3164: if (t.num_sizes >= N_TQ-1)
3165: {
3166: error_line = __LINE__;
3167: saber_stop ();
3168: goto bomb_out;
3169: }
3170:
3171: t.sizes[ t.num_sizes++ ] = *t_ptr++;
3172: }
3173: break;
3174: }
3175:
3176: else
3177: {
3178: error_line = __LINE__;
3179: saber_stop ();
3180: goto bomb_out;
3181: }
3182:
3183:
3184: case 't':
3185: if (len == sizeof (".type")-1
3186: && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3187: && arg_was_number)
3188: {
3189: tq_t *tq_ptr = &t.type_qualifiers[0];
3190:
3191: t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3192: t.basic_type = map_coff_types [(int)t.orig_type];
3193: for (i = N_TQ-1; i >= 0; i--)
3194: {
3195: int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3196: & N_TMASK);
3197:
3198: if (dt != (int)DT_NON)
3199: *tq_ptr++ = map_coff_derived_type [dt];
3200: }
3201:
3202: /* If this is a function, ignore it, so that we don't get
3203: two entries (one from the .ent, and one for the .def
1.1.1.3 root 3204: that precedes it). Save the type information so that
1.1 root 3205: the end block can properly add it after the begin block
3206: index. For MIPS knows what reason, we must strip off
3207: the function type at this point. */
3208: if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3209: {
3210: is_function = 1;
3211: tq_ptr[-1] = tq_Nil;
3212: }
3213:
3214: break;
3215: }
3216:
3217: else if (len == sizeof (".tag")-1
3218: && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3219: {
3220: tag_start = arg_start;
3221: tag_end_p1 = arg_end_p1;
3222: break;
3223: }
3224:
3225: else
3226: {
3227: error_line = __LINE__;
3228: saber_stop ();
3229: goto bomb_out;
3230: }
3231:
3232:
3233: case 'v':
3234: if (len == sizeof (".val")-1
3235: && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3236: {
3237: if (arg_was_number)
3238: value = arg_number;
3239:
3240: /* If the value is not an integer value, it must be the
3241: name of a static or global item. Look up the name in
1.1.1.3 root 3242: the original symbol table to pick up the storage
1.1 root 3243: class, symbol type, etc. */
3244: else
3245: {
3246: shash_t *orig_hash_ptr; /* hash within orig sym table*/
3247: shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3248:
3249: ext_hash_ptr = hash_string (arg_start,
3250: arg_end_p1 - arg_start,
3251: &ext_str_hash[0],
3252: (symint_t *)0);
3253:
3254: if (ext_hash_ptr != (shash_t *)0
3255: && ext_hash_ptr->esym_ptr != (EXTR *)0)
3256: eptr = ext_hash_ptr->esym_ptr;
3257:
3258: orig_hash_ptr = hash_string (arg_start,
3259: arg_end_p1 - arg_start,
3260: &orig_str_hash[0],
3261: (symint_t *)0);
3262:
3263: if ((orig_hash_ptr == (shash_t *)0
3264: || orig_hash_ptr->sym_ptr == (SYMR *)0)
3265: && eptr == (EXTR *)0)
3266: {
3267: fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3268: arg_end_p1 - arg_start,
3269: arg_start);
3270: value = 0;
3271: }
3272: else
3273: {
3274: SYMR *ptr = (orig_hash_ptr != (shash_t *)0
3275: && orig_hash_ptr->sym_ptr != (SYMR *)0)
3276: ? orig_hash_ptr->sym_ptr
3277: : &eptr->asym;
3278:
3279: symbol_type = (st_t) ptr->st;
3280: storage_class = (sc_t) ptr->sc;
3281: value = ptr->value;
3282: }
3283: }
3284: break;
3285: }
3286: else
3287: {
3288: error_line = __LINE__;
3289: saber_stop ();
3290: goto bomb_out;
3291: }
3292: }
3293:
3294: /* Set up to find next directive. */
3295: dir_start = arg_end_p1 + 1;
3296: }
3297:
3298:
3299: t.extra_sizes = (tag_start != (char *)0);
3300: if (t.num_dims > 0)
3301: {
3302: int diff = t.num_dims - t.num_sizes;
3303: int i = t.num_dims - 1;
3304: int j;
3305:
3306: if (t.num_sizes != 1 || diff < 0)
3307: {
3308: error_line = __LINE__;
3309: saber_stop ();
3310: goto bomb_out;
3311: }
3312:
3313: /* If this is an array, make sure the same number of dimensions
3314: and sizes were passed, creating extra sizes for multiply
3315: dimensioned arrays if not passed. */
3316:
3317: t.extra_sizes = 0;
3318: if (diff)
3319: {
3320: for (j = (sizeof (t.sizes) / sizeof (t.sizes[0])) - 1; j >= 0; j--)
3321: t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3322:
3323: t.num_sizes = i + 1;
3324: for ( i--; i >= 0; i-- )
1.1.1.5 root 3325: {
3326: if (t.dimensions[ i+1 ])
3327: t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3328: else
3329: t.sizes[ i ] = t.sizes[ i+1 ];
3330: }
1.1 root 3331: }
3332: }
3333:
3334: else if (symbol_type == st_Member && t.num_sizes - t.extra_sizes == 1)
3335: { /* Is this a bitfield? This is indicated by a structure memeber
3336: having a size field that isn't an array. */
3337:
3338: t.bitfield = 1;
3339: }
3340:
3341:
3342: /* Except for enumeration members & begin/ending of scopes, put the
3343: type word in the aux. symbol table. */
3344:
3345: if (symbol_type == st_Block || symbol_type == st_End)
1.1.1.4 root 3346: indx = 0;
1.1 root 3347:
3348: else if (inside_enumeration)
1.1.1.4 root 3349: indx = cur_file_ptr->void_type;
1.1 root 3350:
3351: else
3352: {
3353: if (t.basic_type == bt_Struct
3354: || t.basic_type == bt_Union
3355: || t.basic_type == bt_Enum)
3356: {
3357: if (tag_start == (char *)0)
3358: {
3359: error ("No tag specified for %.*s",
3360: name_end_p1 - name_start,
3361: name_start);
3362: return;
3363: }
3364:
3365: t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
3366: t.basic_type);
3367: }
3368:
3369: if (is_function)
3370: {
3371: last_func_type_info = t;
3372: last_func_eptr = eptr;
3373: return;
3374: }
3375:
1.1.1.4 root 3376: indx = add_aux_sym_tir (&t,
3377: hash_yes,
3378: &cur_file_ptr->thash_head[0]);
1.1 root 3379: }
3380:
3381:
3382: /* If this is an external or static symbol, update the appropriate
3383: external symbol. */
3384:
3385: if (eptr != (EXTR *)0
3386: && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *)0))
3387: {
3388: eptr->ifd = cur_file_ptr->file_index;
1.1.1.4 root 3389: eptr->asym.index = indx;
1.1 root 3390: }
3391:
3392:
3393: /* Do any last minute adjustments that are necessary. */
3394: switch (symbol_type)
3395: {
3396: default:
3397: break;
3398:
3399:
3400: /* For the beginning of structs, unions, and enumerations, the
3401: size info needs to be passed in the value field. */
3402:
3403: case st_Block:
3404: if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3405: {
3406: error_line = __LINE__;
3407: saber_stop ();
3408: goto bomb_out;
3409: }
3410:
3411: else
3412: value = t.sizes[0];
3413:
3414: inside_enumeration = (t.orig_type == T_ENUM);
3415: break;
3416:
3417:
3418: /* For the end of structs, unions, and enumerations, omit the
3419: name which is always ".eos". This needs to be done last, so
3420: that any error reporting above gives the correct name. */
3421:
3422: case st_End:
3423: name_start = name_end_p1 = (const char *)0;
3424: value = inside_enumeration = 0;
3425: break;
3426:
3427:
3428: /* Members of structures and unions that aren't bitfields, need
3429: to adjust the value from a byte offset to a bit offset.
3430: Members of enumerations do not have the value adjusted, and
1.1.1.4 root 3431: can be distinguished by indx == indexNil. For enumerations,
1.1 root 3432: update the maximum enumeration value. */
3433:
3434: case st_Member:
3435: if (!t.bitfield && !inside_enumeration)
3436: value *= 8;
3437:
3438: break;
3439: }
3440:
3441:
3442: /* Add the symbol, except for global symbols outside of functions,
3443: for which the external symbol table is fine enough. */
3444:
3445: if (eptr == (EXTR *)0
3446: || eptr->asym.st == (int)st_Nil
3447: || cur_proc_ptr != (PDR *)0)
3448: {
3449: symint_t isym = add_local_symbol (name_start, name_end_p1,
3450: symbol_type, storage_class,
3451: value,
1.1.1.4 root 3452: indx);
1.1 root 3453:
3454: /* deal with struct, union, and enum tags. */
3455: if (symbol_type == st_Block)
3456: {
3457: /* Create or update the tag information. */
3458: tag_t *tag_ptr = get_tag (name_start,
3459: name_end_p1,
3460: isym,
3461: t.basic_type);
3462:
3463: /* If there are any forward references, fill in the appropriate
3464: file and symbol indexes. */
3465:
3466: symint_t file_index = cur_file_ptr->file_index;
3467: forward_t *f_next = tag_ptr->forward_ref;
3468: forward_t *f_cur;
3469:
3470: while (f_next != (forward_t *)0)
3471: {
3472: f_cur = f_next;
3473: f_next = f_next->next;
3474:
3475: f_cur->ifd_ptr->isym = file_index;
3476: f_cur->index_ptr->rndx.index = isym;
3477:
3478: free_forward (f_cur);
3479: }
3480:
3481: tag_ptr->forward_ref = (forward_t *)0;
3482: }
3483: }
3484:
3485: /* Normal return */
3486: return;
3487:
3488: /* Error return, issue message. */
3489: bomb_out:
3490: if (error_line)
3491: error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3492: else
3493: error ("compiler error, badly formed #.def");
3494:
3495: return;
3496: }
3497:
3498:
3499: /* Parse .end directives. */
3500:
3501: STATIC void
3502: parse_end (start)
3503: const char *start; /* start of directive */
3504: {
3505: register const char *start_func, *end_func_p1;
3506: register int ch;
3507: register symint_t value;
3508: register FDR *orig_fdr;
3509:
3510: if (cur_file_ptr == (efdr_t *)0)
3511: {
1.1.1.2 root 3512: error (".end directive without a preceding .file directive");
1.1 root 3513: return;
3514: }
3515:
3516: if (cur_proc_ptr == (PDR *)0)
3517: {
1.1.1.2 root 3518: error (".end directive without a preceding .ent directive");
1.1 root 3519: return;
3520: }
3521:
3522: /* Get the function name, skipping whitespace. */
3523: for (start_func = start; isspace (*start_func); start_func++)
3524: ;
3525:
3526: ch = *start_func;
3527: if (!IS_ASM_IDENT (ch))
3528: {
3529: error (".end directive has no name");
3530: return;
3531: }
3532:
3533: for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3534: ;
3535:
3536:
3537: /* Get the value field for creating the end from the original object
3538: file (which we find by locating the procedure start, and using the
3539: pointer to the end+1 block and backing up. The index points to a
3540: two word aux. symbol, whose first word is the index of the end
3541: symbol, and the second word is the type of the function return
3542: value. */
3543:
3544: orig_fdr = cur_file_ptr->orig_fdr;
3545: value = 0;
3546: if (orig_fdr != (FDR *)0 && cur_oproc_end != (SYMR *)0)
3547: value = cur_oproc_end->value;
3548:
3549: else
3550: error ("Cannot find .end block for %.*s", end_func_p1 - start_func, start_func);
3551:
3552: (void) add_local_symbol (start_func, end_func_p1,
3553: st_End, sc_Text,
3554: value,
3555: (symint_t)0);
3556:
3557: cur_proc_ptr = cur_oproc_ptr = (PDR *)0;
3558: }
3559:
3560:
3561: /* Parse .ent directives. */
3562:
3563: STATIC void
3564: parse_ent (start)
3565: const char *start; /* start of directive */
3566: {
3567: register const char *start_func, *end_func_p1;
3568: register int ch;
3569:
3570: if (cur_file_ptr == (efdr_t *)0)
3571: {
1.1.1.2 root 3572: error (".ent directive without a preceding .file directive");
1.1 root 3573: return;
3574: }
3575:
3576: if (cur_proc_ptr != (PDR *)0)
3577: {
3578: error ("second .ent directive found before .end directive");
3579: return;
3580: }
3581:
3582: for (start_func = start; isspace (*start_func); start_func++)
3583: ;
3584:
3585: ch = *start_func;
3586: if (!IS_ASM_IDENT (ch))
3587: {
3588: error (".ent directive has no name");
3589: return;
3590: }
3591:
3592: for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3593: ;
3594:
3595: (void) add_procedure (start_func, end_func_p1);
3596: }
3597:
3598:
3599: /* Parse .file directives. */
3600:
3601: STATIC void
3602: parse_file (start)
3603: const char *start; /* start of directive */
3604: {
3605: char *p;
3606: register char *start_name, *end_name_p1;
3607:
3608: (void) strtol (start, &p, 0);
3609: if (start == p
1.1.1.4 root 3610: || (start_name = local_index (p, '"')) == (char *)0
3611: || (end_name_p1 = local_rindex (++start_name, '"')) == (char *)0)
1.1 root 3612: {
1.1.1.5 root 3613: error ("Invalid .file directive");
1.1 root 3614: return;
3615: }
3616:
3617: if (cur_proc_ptr != (PDR *)0)
3618: {
3619: error ("No way to handle .file within .ent/.end section");
3620: return;
3621: }
3622:
3623: add_file (start_name, end_name_p1);
3624: }
3625:
3626:
1.1.1.2 root 3627: /* Make sure the @stabs symbol is emitted. */
3628:
3629: static void
3630: mark_stabs (start)
3631: const char *start; /* Start of directive (ignored) */
3632: {
3633: if (!stabs_seen)
3634: {
3635: /* Add a dummy @stabs dymbol. */
3636: stabs_seen = 1;
3637: (void) add_local_symbol (stabs_symbol,
3638: stabs_symbol + sizeof (stabs_symbol),
3639: stNil, scInfo, -1, MIPS_MARK_STAB(0));
3640:
3641: }
3642: }
3643:
3644:
1.1 root 3645: /* Parse .stabs directives.
3646:
3647: .stabs directives have five fields:
3648: "string" a string, encoding the type information.
3649: code a numeric code, defined in <stab.h>
3650: 0 a zero
3651: 0 a zero or line number
3652: value a numeric value or an address.
3653:
3654: If the value is relocatable, we transform this into:
3655: iss points as an index into string space
3656: value value from lookup of the name
3657: st st from lookup of the name
3658: sc sc from lookup of the name
3659: index code|CODE_MASK
3660:
3661: If the value is not relocatable, we transform this into:
3662: iss points as an index into string space
3663: value value
3664: st st_Nil
3665: sc sc_Nil
3666: index code|CODE_MASK
3667:
3668: .stabn directives have four fields (string is null):
3669: code a numeric code, defined in <stab.h>
3670: 0 a zero
3671: 0 a zero or a line number
3672: value a numeric value or an address. */
3673:
3674: STATIC void
3675: parse_stabs_common (string_start, string_end, rest)
3676: const char *string_start; /* start of string or NULL */
3677: const char *string_end; /* end+1 of string or NULL */
3678: const char *rest; /* rest of the directive. */
3679: {
3680: efdr_t *save_file_ptr = cur_file_ptr;
3681: symint_t code;
3682: symint_t value;
3683: char *p;
3684: st_t st;
3685: sc_t sc;
3686: int ch;
3687:
1.1.1.2 root 3688: if (stabs_seen == 0)
3689: mark_stabs ("");
1.1 root 3690:
3691: /* Read code from stabs. */
3692: if (!isdigit (*rest))
3693: {
1.1.1.5 root 3694: error ("Invalid .stabs/.stabn directive, code is non-numeric");
1.1 root 3695: return;
3696: }
3697:
3698: code = strtol (rest, &p, 0);
3699:
3700: /* Line number stabs are handled differently, since they have two values,
3701: the line number and the address of the label. We use the index field
3702: (aka code) to hold the line number, and the value field to hold the
3703: address. The symbol type is st_Label, which should be different from
3704: the other stabs, so that gdb can recognize it. */
3705:
3706: if (code == (int)N_SLINE)
3707: {
1.1.1.4 root 3708: SYMR *sym_ptr, dummy_symr;
1.1 root 3709: shash_t *shash_ptr;
3710:
3711: /* Skip ,0, */
3712: if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !isdigit (p[3]))
3713: {
1.1.1.5 root 3714: error ("Invalid line number .stabs/.stabn directive");
1.1 root 3715: return;
3716: }
3717:
3718: code = strtol (p+3, &p, 0);
3719: ch = *++p;
1.1.1.4 root 3720: if (p[-1] != ',' || isdigit (ch) || !IS_ASM_IDENT (ch))
1.1 root 3721: {
1.1.1.5 root 3722: error ("Invalid line number .stabs/.stabn directive");
1.1 root 3723: return;
3724: }
3725:
1.1.1.4 root 3726: dummy_symr.index = code;
3727: if (dummy_symr.index != code)
3728: {
3729: error ("Line number (%d) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3730: code);
3731:
3732: return;
3733: }
3734:
1.1 root 3735: shash_ptr = hash_string (p,
3736: strlen (p) - 1,
3737: &orig_str_hash[0],
3738: (symint_t *)0);
3739:
3740: if (shash_ptr == (shash_t *)0
3741: || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *)0)
3742: {
1.1.1.5 root 3743: error ("Invalid .stabs/.stabn directive, value not found");
1.1 root 3744: return;
3745: }
3746:
3747: if ((st_t) sym_ptr->st != st_Label)
3748: {
1.1.1.5 root 3749: error ("Invalid line number .stabs/.stabn directive");
1.1 root 3750: return;
3751: }
3752:
3753: st = st_Label;
3754: sc = (sc_t) sym_ptr->sc;
3755: value = sym_ptr->value;
3756: }
3757: else
3758: {
1.1.1.5 root 3759: /* Skip ,<num>,<num>, */
3760: if (*p++ != ',')
3761: goto failure;
3762: for (; isdigit (*p); p++)
3763: ;
3764: if (*p++ != ',')
3765: goto failure;
3766: for (; isdigit (*p); p++)
3767: ;
3768: if (*p++ != ',')
3769: goto failure;
1.1 root 3770: ch = *p;
3771: if (!IS_ASM_IDENT (ch) && ch != '-')
3772: {
1.1.1.5 root 3773: failure:
3774: error ("Invalid .stabs/.stabn directive, bad character");
1.1 root 3775: return;
3776: }
3777:
3778: if (isdigit (ch) || ch == '-')
3779: {
3780: st = st_Nil;
3781: sc = sc_Nil;
3782: value = strtol (p, &p, 0);
3783: if (*p != '\n')
3784: {
1.1.1.5 root 3785: error ("Invalid .stabs/.stabn directive, stuff after numeric value");
1.1 root 3786: return;
3787: }
3788: }
3789: else if (!IS_ASM_IDENT (ch))
3790: {
1.1.1.5 root 3791: error ("Invalid .stabs/.stabn directive, bad character");
1.1 root 3792: return;
3793: }
3794: else
3795: {
3796: SYMR *sym_ptr;
1.1.1.4 root 3797: shash_t *shash_ptr;
3798: const char *start, *end_p1;
3799:
3800: start = p;
3801: if ((end_p1 = strchr (start, '+')) == (char *)0)
3802: {
3803: if ((end_p1 = strchr (start, '-')) == (char *)0)
3804: end_p1 = start + strlen(start) - 1;
3805: }
3806:
3807: shash_ptr = hash_string (start,
3808: end_p1 - start,
3809: &orig_str_hash[0],
3810: (symint_t *)0);
1.1 root 3811:
3812: if (shash_ptr == (shash_t *)0
3813: || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *)0)
3814: {
1.1.1.4 root 3815: shash_ptr = hash_string (start,
3816: end_p1 - start,
3817: &ext_str_hash[0],
3818: (symint_t *)0);
3819:
3820: if (shash_ptr == (shash_t *)0
3821: || shash_ptr->esym_ptr == (EXTR *)0)
3822: {
1.1.1.5 root 3823: error ("Invalid .stabs/.stabn directive, value not found");
1.1.1.4 root 3824: return;
3825: }
3826: else
3827: sym_ptr = &(shash_ptr->esym_ptr->asym);
1.1 root 3828: }
3829:
3830: /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3831: if (code == (int)N_LBRAC || code == (int)N_RBRAC)
3832: {
3833: sc = scNil;
3834: st = stNil;
3835: }
3836: else
3837: {
3838: sc = (sc_t) sym_ptr->sc;
3839: st = (st_t) sym_ptr->st;
3840: }
3841: value = sym_ptr->value;
1.1.1.4 root 3842:
3843: ch = *end_p1++;
3844: if (ch != '\n')
3845: {
3846: if (((!isdigit (*end_p1)) && (*end_p1 != '-'))
3847: || ((ch != '+') && (ch != '-')))
3848: {
1.1.1.5 root 3849: error ("Invalid .stabs/.stabn directive, badly formed value");
1.1.1.4 root 3850: return;
3851: }
3852: if (ch == '+')
3853: value += strtol (end_p1, &p, 0);
3854: else if (ch == '-')
3855: value -= strtol (end_p1, &p, 0);
3856:
3857: if (*p != '\n')
3858: {
1.1.1.5 root 3859: error ("Invalid .stabs/.stabn directive, stuff after numeric value");
1.1.1.4 root 3860: return;
3861: }
3862: }
1.1 root 3863: }
3864: code = MIPS_MARK_STAB(code);
3865: }
3866:
3867: (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3868: /* Restore normal file type. */
3869: cur_file_ptr = save_file_ptr;
3870: }
3871:
3872:
3873: STATIC void
3874: parse_stabs (start)
3875: const char *start; /* start of directive */
3876: {
1.1.1.4 root 3877: const char *end = local_index (start+1, '"');
1.1 root 3878:
3879: if (*start != '"' || end == (const char *)0 || end[1] != ',')
3880: {
1.1.1.5 root 3881: error ("Invalid .stabs directive, no string");
1.1 root 3882: return;
3883: }
3884:
3885: parse_stabs_common (start+1, end, end+2);
3886: }
3887:
3888:
3889: STATIC void
3890: parse_stabn (start)
3891: const char *start; /* start of directive */
3892: {
3893: parse_stabs_common ((const char *)0, (const char *)0, start);
3894: }
3895:
3896:
3897: /* Parse the input file, and write the lines to the output file
3898: if needed. */
3899:
3900: STATIC void
3901: parse_input __proto((void))
3902: {
3903: register char *p;
3904: register int i;
3905: register thead_t *ptag_head;
3906: register tag_t *ptag;
3907: register tag_t *ptag_next;
3908:
3909: if (debug)
3910: fprintf (stderr, "\tinput\n");
3911:
3912: /* Add a dummy scope block around the entire compilation unit for
3913: structures defined outside of blocks. */
3914: ptag_head = allocate_thead ();
3915: ptag_head->first_tag = 0;
3916: ptag_head->prev = cur_tag_head;
3917: cur_tag_head = ptag_head;
3918:
3919: while ((p = read_line ()) != (char *)0)
3920: {
3921: /* Skip leading blanks */
3922: while (isspace (*p))
3923: p++;
3924:
3925: /* See if it's a directive we handle. If so, dispatch handler. */
3926: for (i = 0; i < sizeof (pseudo_ops) / sizeof (pseudo_ops[0]); i++)
3927: if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3928: && isspace (p[pseudo_ops[i].len]))
3929: {
3930: p += pseudo_ops[i].len; /* skip to first argument */
3931: while (isspace (*p))
3932: p++;
3933:
3934: (*pseudo_ops[i].func)( p );
3935: break;
3936: }
3937: }
3938:
3939: /* Process any tags at global level. */
3940: ptag_head = cur_tag_head;
3941: cur_tag_head = ptag_head->prev;
3942:
3943: for (ptag = ptag_head->first_tag;
3944: ptag != (tag_t *)0;
3945: ptag = ptag_next)
3946: {
3947: if (ptag->forward_ref != (forward_t *)0)
3948: add_unknown_tag (ptag);
3949:
3950: ptag_next = ptag->same_block;
3951: ptag->hash_ptr->tag_ptr = ptag->same_name;
3952: free_tag (ptag);
3953: }
3954:
3955: free_thead (ptag_head);
3956:
3957: }
3958:
3959:
3960: /* Update the global headers with the final offsets in preparation
3961: to write out the .T file. */
3962:
3963: STATIC void
3964: update_headers __proto((void))
3965: {
3966: register symint_t i;
3967: register efdr_t *file_ptr;
3968:
3969: /* Set up the symbolic header. */
3970: file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3971: symbolic_header.magic = orig_sym_hdr.magic;
3972: symbolic_header.vstamp = orig_sym_hdr.vstamp;
3973:
3974: /* Set up global counts. */
3975: symbolic_header.issExtMax = ext_strings.num_allocated;
3976: symbolic_header.idnMax = dense_num.num_allocated;
3977: symbolic_header.ifdMax = file_desc.num_allocated;
3978: symbolic_header.iextMax = ext_symbols.num_allocated;
3979: symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3980: symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3981: symbolic_header.cbLine = orig_sym_hdr.cbLine;
3982: symbolic_header.crfd = orig_sym_hdr.crfd;
3983:
3984:
3985: /* Loop through each file, figuring out how many local syms,
3986: line numbers, etc. there are. Also, put out end symbol
3987: for the filename. */
3988:
3989: for (file_ptr = first_file;
3990: file_ptr != (efdr_t *)0;
3991: file_ptr = file_ptr->next_file)
3992: {
1.1.1.7 ! root 3993: register SYMR *sym_start;
! 3994: register SYMR *sym;
! 3995: register SYMR *sym_end_p1;
! 3996: register FDR *fd_ptr = file_ptr->orig_fdr;
! 3997:
1.1 root 3998: cur_file_ptr = file_ptr;
1.1.1.7 ! root 3999:
! 4000: /* Copy st_Static symbols from the original local symbol table if
! 4001: they did not get added to the new local symbol table.
! 4002: This happens with stabs-in-ecoff or if the source file is
! 4003: compiled without debugging. */
! 4004: sym_start = ORIG_LSYMS (fd_ptr->isymBase);
! 4005: sym_end_p1 = sym_start + fd_ptr->csym;
! 4006: for (sym = sym_start; sym < sym_end_p1; sym++)
! 4007: {
! 4008: if ((st_t)sym->st == st_Static)
! 4009: {
! 4010: register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
! 4011: register Size_t len = strlen (str);
! 4012: register shash_t *hash_ptr;
! 4013:
! 4014: /* Ignore internal labels. */
! 4015: if (str[0] == '$' && str[1] == 'L')
! 4016: continue;
! 4017: hash_ptr = hash_string (str,
! 4018: (Ptrdiff_t)len,
! 4019: &file_ptr->shash_head[0],
! 4020: (symint_t *)0);
! 4021: if (hash_ptr == (shash_t *)0)
! 4022: {
! 4023: (void) add_local_symbol (str, str + len,
! 4024: (st_t)sym->st, (sc_t)sym->sc,
! 4025: (symint_t)sym->value,
! 4026: (symint_t)indexNil);
! 4027: }
! 4028: }
! 4029: }
1.1 root 4030: (void) add_local_symbol ((const char *)0, (const char *)0,
4031: st_End, sc_Text,
4032: (symint_t)0,
4033: (symint_t)0);
4034:
4035: file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
4036: file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
4037: symbolic_header.ipdMax += file_ptr->fdr.cpd;
4038:
4039: file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
4040: file_ptr->fdr.isymBase = symbolic_header.isymMax;
4041: symbolic_header.isymMax += file_ptr->fdr.csym;
4042:
4043: file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
4044: file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
4045: symbolic_header.iauxMax += file_ptr->fdr.caux;
4046:
4047: file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
4048: file_ptr->fdr.issBase = symbolic_header.issMax;
4049: symbolic_header.issMax += file_ptr->fdr.cbSs;
4050: }
4051:
1.1.1.7 ! root 4052: #ifndef ALIGN_SYMTABLE_OFFSET
! 4053: #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
! 4054: #endif
1.1 root 4055:
1.1.1.7 ! root 4056: file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
1.1 root 4057: i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
4058: if (i > 0)
4059: {
4060: symbolic_header.cbLineOffset = file_offset;
4061: file_offset += i;
1.1.1.7 ! root 4062: file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
1.1 root 4063: }
4064:
4065: i = symbolic_header.ioptMax; /* optimization symbols */
4066: if (((long) i) > 0)
4067: {
4068: symbolic_header.cbOptOffset = file_offset;
4069: file_offset += i * sizeof (OPTR);
1.1.1.7 ! root 4070: file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
1.1 root 4071: }
4072:
4073: i = symbolic_header.idnMax; /* dense numbers */
4074: if (i > 0)
4075: {
4076: symbolic_header.cbDnOffset = file_offset;
4077: file_offset += i * sizeof (DNR);
1.1.1.7 ! root 4078: file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
1.1 root 4079: }
4080:
4081: i = symbolic_header.ipdMax; /* procedure tables */
4082: if (i > 0)
4083: {
4084: symbolic_header.cbPdOffset = file_offset;
4085: file_offset += i * sizeof (PDR);
1.1.1.7 ! root 4086: file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
1.1 root 4087: }
4088:
4089: i = symbolic_header.isymMax; /* local symbols */
4090: if (i > 0)
4091: {
4092: symbolic_header.cbSymOffset = file_offset;
4093: file_offset += i * sizeof (SYMR);
1.1.1.7 ! root 4094: file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
1.1 root 4095: }
4096:
4097: i = symbolic_header.iauxMax; /* aux syms. */
4098: if (i > 0)
4099: {
4100: symbolic_header.cbAuxOffset = file_offset;
4101: file_offset += i * sizeof (TIR);
1.1.1.7 ! root 4102: file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
1.1 root 4103: }
4104:
4105: i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4106: if (i > 0)
4107: {
4108: symbolic_header.cbSsOffset = file_offset;
4109: file_offset += i;
1.1.1.7 ! root 4110: file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
1.1 root 4111: }
4112:
4113: i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4114: if (i > 0)
4115: {
4116: symbolic_header.cbSsExtOffset = file_offset;
4117: file_offset += i;
1.1.1.7 ! root 4118: file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
1.1 root 4119: }
4120:
4121: i = symbolic_header.ifdMax; /* file tables */
4122: if (i > 0)
4123: {
4124: symbolic_header.cbFdOffset = file_offset;
4125: file_offset += i * sizeof (FDR);
1.1.1.7 ! root 4126: file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
1.1 root 4127: }
4128:
4129: i = symbolic_header.crfd; /* relative file descriptors */
4130: if (i > 0)
4131: {
4132: symbolic_header.cbRfdOffset = file_offset;
4133: file_offset += i * sizeof (symint_t);
1.1.1.7 ! root 4134: file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
1.1 root 4135: }
4136:
4137: i = symbolic_header.iextMax; /* external symbols */
4138: if (i > 0)
4139: {
4140: symbolic_header.cbExtOffset = file_offset;
4141: file_offset += i * sizeof (EXTR);
1.1.1.7 ! root 4142: file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
1.1 root 4143: }
4144: }
4145:
4146:
4147: /* Write out a varray at a given location. */
4148:
4149: STATIC void
4150: write_varray (vp, offset, str)
4151: varray_t *vp; /* virtual array */
4152: off_t offset; /* offset to write varray to */
4153: const char *str; /* string to print out when tracing */
4154: {
4155: int num_write, sys_write;
4156: vlinks_t *ptr;
4157:
4158: if (vp->num_allocated == 0)
4159: return;
4160:
4161: if (debug)
4162: fprintf (stderr, "\twarray\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4163: vp, offset, vp->num_allocated * vp->object_size, str);
4164:
4165: if (file_offset != offset
4166: && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4167: pfatal_with_name (object_name);
4168:
4169: for (ptr = vp->first; ptr != (vlinks_t *)0; ptr = ptr->next)
4170: {
4171: num_write = (ptr->next == (vlinks_t *)0)
4172: ? vp->objects_last_page * vp->object_size
4173: : vp->objects_per_page * vp->object_size;
4174:
4175: sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
4176: if (sys_write <= 0)
4177: pfatal_with_name (object_name);
4178:
4179: else if (sys_write != num_write)
4180: fatal ("Wrote %d bytes to %s, system returned %d",
4181: num_write,
4182: object_name,
4183: sys_write);
4184:
4185: file_offset += num_write;
4186: }
4187: }
4188:
4189:
4190: /* Write out the symbol table in the object file. */
4191:
4192: STATIC void
4193: write_object __proto((void))
4194: {
4195: int sys_write;
4196: efdr_t *file_ptr;
4197: off_t offset;
4198:
4199: if (debug)
4200: fprintf (stderr, "\n\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4201: (PTR_T *) &symbolic_header, 0, sizeof (symbolic_header),
4202: "symbolic header");
4203:
4204: sys_write = fwrite ((PTR_T) &symbolic_header,
4205: 1,
4206: sizeof (symbolic_header),
4207: object_stream);
4208:
4209: if (sys_write < 0)
4210: pfatal_with_name (object_name);
4211:
4212: else if (sys_write != sizeof (symbolic_header))
4213: fatal ("Wrote %d bytes to %s, system returned %d",
4214: sizeof (symbolic_header),
4215: object_name,
4216: sys_write);
4217:
4218:
4219: file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4220:
4221: if (symbolic_header.cbLine > 0) /* line numbers */
4222: {
4223: long sys_write;
4224:
4225: if (file_offset != symbolic_header.cbLineOffset
4226: && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4227: pfatal_with_name (object_name);
4228:
4229: if (debug)
4230: fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4231: (PTR_T *) &orig_linenum, symbolic_header.cbLineOffset,
4232: symbolic_header.cbLine, "Line numbers");
4233:
4234: sys_write = fwrite ((PTR_T) orig_linenum,
4235: 1,
4236: symbolic_header.cbLine,
4237: object_stream);
4238:
4239: if (sys_write <= 0)
4240: pfatal_with_name (object_name);
4241:
4242: else if (sys_write != symbolic_header.cbLine)
4243: fatal ("Wrote %d bytes to %s, system returned %d",
4244: symbolic_header.cbLine,
4245: object_name,
4246: sys_write);
4247:
4248: file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4249: }
4250:
4251: if (symbolic_header.ioptMax > 0) /* optimization symbols */
4252: {
4253: long sys_write;
4254: long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4255:
4256: if (file_offset != symbolic_header.cbOptOffset
4257: && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4258: pfatal_with_name (object_name);
4259:
4260: if (debug)
4261: fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4262: (PTR_T *) &orig_opt_syms, symbolic_header.cbOptOffset,
4263: num_write, "Optimizer symbols");
4264:
4265: sys_write = fwrite ((PTR_T) orig_opt_syms,
4266: 1,
4267: num_write,
4268: object_stream);
4269:
4270: if (sys_write <= 0)
4271: pfatal_with_name (object_name);
4272:
4273: else if (sys_write != num_write)
4274: fatal ("Wrote %d bytes to %s, system returned %d",
4275: num_write,
4276: object_name,
4277: sys_write);
4278:
4279: file_offset = symbolic_header.cbOptOffset + num_write;
4280: }
4281:
4282: if (symbolic_header.idnMax > 0) /* dense numbers */
4283: write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4284:
4285: if (symbolic_header.ipdMax > 0) /* procedure tables */
4286: {
4287: offset = symbolic_header.cbPdOffset;
4288: for (file_ptr = first_file;
4289: file_ptr != (efdr_t *)0;
4290: file_ptr = file_ptr->next_file)
4291: {
4292: write_varray (&file_ptr->procs, offset, "Procedure tables");
4293: offset = file_offset;
4294: }
4295: }
4296:
4297: if (symbolic_header.isymMax > 0) /* local symbols */
4298: {
4299: offset = symbolic_header.cbSymOffset;
4300: for (file_ptr = first_file;
4301: file_ptr != (efdr_t *)0;
4302: file_ptr = file_ptr->next_file)
4303: {
4304: write_varray (&file_ptr->symbols, offset, "Local symbols");
4305: offset = file_offset;
4306: }
4307: }
4308:
4309: if (symbolic_header.iauxMax > 0) /* aux symbols */
4310: {
4311: offset = symbolic_header.cbAuxOffset;
4312: for (file_ptr = first_file;
4313: file_ptr != (efdr_t *)0;
4314: file_ptr = file_ptr->next_file)
4315: {
4316: write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4317: offset = file_offset;
4318: }
4319: }
4320:
4321: if (symbolic_header.issMax > 0) /* local strings */
4322: {
4323: offset = symbolic_header.cbSsOffset;
4324: for (file_ptr = first_file;
4325: file_ptr != (efdr_t *)0;
4326: file_ptr = file_ptr->next_file)
4327: {
4328: write_varray (&file_ptr->strings, offset, "Local strings");
4329: offset = file_offset;
4330: }
4331: }
4332:
4333: if (symbolic_header.issExtMax > 0) /* external strings */
4334: write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4335:
4336: if (symbolic_header.ifdMax > 0) /* file tables */
4337: {
4338: offset = symbolic_header.cbFdOffset;
4339: if (file_offset != offset
4340: && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4341: pfatal_with_name (object_name);
4342:
4343: file_offset = offset;
4344: for (file_ptr = first_file;
4345: file_ptr != (efdr_t *)0;
4346: file_ptr = file_ptr->next_file)
4347: {
4348: if (debug)
4349: fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4350: (PTR_T *) &file_ptr->fdr, file_offset, sizeof (FDR), "File header");
4351:
4352: sys_write = fwrite (&file_ptr->fdr,
4353: 1,
4354: sizeof (FDR),
4355: object_stream);
4356:
4357: if (sys_write < 0)
4358: pfatal_with_name (object_name);
4359:
4360: else if (sys_write != sizeof (FDR))
4361: fatal ("Wrote %d bytes to %s, system returned %d",
4362: sizeof (FDR),
4363: object_name,
4364: sys_write);
4365:
4366: file_offset = offset += sizeof (FDR);
4367: }
4368: }
4369:
4370: if (symbolic_header.crfd > 0) /* relative file descriptors */
4371: {
4372: long sys_write;
4373: symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4374:
4375: if (file_offset != symbolic_header.cbRfdOffset
4376: && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4377: pfatal_with_name (object_name);
4378:
4379: if (debug)
4380: fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4381: (PTR_T *) &orig_rfds, symbolic_header.cbRfdOffset,
4382: num_write, "Relative file descriptors");
4383:
4384: sys_write = fwrite (orig_rfds,
4385: 1,
4386: num_write,
4387: object_stream);
4388:
4389: if (sys_write <= 0)
4390: pfatal_with_name (object_name);
4391:
4392: else if (sys_write != num_write)
4393: fatal ("Wrote %d bytes to %s, system returned %d",
4394: num_write,
4395: object_name,
4396: sys_write);
4397:
4398: file_offset = symbolic_header.cbRfdOffset + num_write;
4399: }
4400:
4401: if (symbolic_header.issExtMax > 0) /* external symbols */
4402: write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4403:
4404: if (fclose (object_stream) != 0)
4405: pfatal_with_name (object_name);
4406: }
4407:
4408:
4409: /* Read some bytes at a specified location, and return a pointer. */
4410:
4411: STATIC page_t *
4412: read_seek (size, offset, str)
4413: Size_t size; /* # bytes to read */
4414: off_t offset; /* offset to read at */
4415: const char *str; /* name for tracing */
4416: {
4417: page_t *ptr;
4418: long sys_read = 0;
4419:
4420: if (size == 0) /* nothing to read */
4421: return (page_t *)0;
4422:
4423: if (debug)
4424: fprintf (stderr, "\trseek\tsize = %7u, offset = %7u, currently at %7u, %s\n",
4425: size, offset, file_offset, str);
4426:
4427: #ifndef MALLOC_CHECK
4428: ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4429: #else
4430: ptr = (page_t *) xcalloc (1, size);
4431: #endif
4432:
4433: /* If we need to seek, and the distance is nearby, just do some reads,
4434: to speed things up. */
4435: if (file_offset != offset)
4436: {
4437: symint_t difference = offset - file_offset;
4438:
4439: if (difference < 8)
4440: {
4441: char small_buffer[8];
4442:
4443: sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4444: if (sys_read <= 0)
4445: pfatal_with_name (obj_in_name);
4446:
4447: if (sys_read != difference)
4448: fatal ("Wanted to read %d bytes from %s, system returned %d",
4449: size,
1.1.1.3 root 4450: obj_in_name,
4451: sys_read);
1.1 root 4452: }
4453: else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4454: pfatal_with_name (obj_in_name);
4455: }
4456:
4457: sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
4458: if (sys_read <= 0)
4459: pfatal_with_name (obj_in_name);
4460:
4461: if (sys_read != size)
4462: fatal ("Wanted to read %d bytes from %s, system returned %d",
4463: size,
1.1.1.3 root 4464: obj_in_name,
4465: sys_read);
1.1 root 4466:
4467: file_offset = offset + size;
4468:
4469: if (file_offset > max_file_offset)
4470: max_file_offset = file_offset;
4471:
4472: return ptr;
4473: }
4474:
4475:
4476: /* Read the existing object file (and copy to the output object file
4477: if it is different from the input object file), and remove the old
4478: symbol table. */
4479:
4480: STATIC void
4481: copy_object __proto((void))
4482: {
4483: char buffer[ PAGE_SIZE ];
4484: register int sys_read;
4485: register int remaining;
4486: register int num_write;
4487: register int sys_write;
4488: register int fd, es;
4489: register int delete_ifd = 0;
4490: register int *remap_file_number;
4491: struct stat stat_buf;
4492:
4493: if (debug)
4494: fprintf (stderr, "\tcopy\n");
4495:
4496: if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4497: || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4498: pfatal_with_name (obj_in_name);
4499:
4500: sys_read = fread ((PTR_T) &orig_file_header,
4501: 1,
4502: sizeof (struct filehdr),
4503: obj_in_stream);
4504:
4505: if (sys_read < 0)
4506: pfatal_with_name (obj_in_name);
4507:
4508: else if (sys_read == 0 && feof (obj_in_stream))
4509: return; /* create a .T file sans file header */
4510:
4511: else if (sys_read < sizeof (struct filehdr))
4512: fatal ("Wanted to read %d bytes from %s, system returned %d",
4513: sizeof (struct filehdr),
4514: obj_in_name,
4515: sys_read);
4516:
4517:
4518: if (orig_file_header.f_nsyms != sizeof (HDRR))
4519: fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
4520: input_name, orig_file_header.f_nsyms, sizeof (HDRR));
4521:
4522:
4523: /* Read in the current symbolic header. */
4524: if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4525: pfatal_with_name (input_name);
4526:
4527: sys_read = fread ((PTR_T) &orig_sym_hdr,
4528: 1,
4529: sizeof (orig_sym_hdr),
4530: obj_in_stream);
4531:
4532: if (sys_read < 0)
4533: pfatal_with_name (object_name);
4534:
4535: else if (sys_read < sizeof (struct filehdr))
4536: fatal ("Wanted to read %d bytes from %s, system returned %d",
4537: sizeof (struct filehdr),
4538: obj_in_name,
4539: sys_read);
4540:
4541:
4542: /* Read in each of the sections if they exist in the object file.
4543: We read things in in the order the mips assembler creates the
4544: sections, so in theory no extra seeks are done.
4545:
4546: For simplicity sake, round each read up to a page boundary,
4547: we may want to revisit this later.... */
4548:
4549: file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4550:
4551: if (orig_sym_hdr.cbLine > 0) /* line numbers */
4552: orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4553: orig_sym_hdr.cbLineOffset,
4554: "Line numbers");
4555:
4556: if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4557: orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4558: orig_sym_hdr.cbPdOffset,
4559: "Procedure tables");
4560:
4561: if (orig_sym_hdr.isymMax > 0) /* local symbols */
4562: orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4563: orig_sym_hdr.cbSymOffset,
4564: "Local symbols");
4565:
4566: if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4567: orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4568: orig_sym_hdr.cbAuxOffset,
4569: "Aux. symbols");
4570:
4571: if (orig_sym_hdr.issMax > 0) /* local strings */
4572: orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4573: orig_sym_hdr.cbSsOffset,
4574: "Local strings");
4575:
4576: if (orig_sym_hdr.issExtMax > 0) /* external strings */
4577: orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4578: orig_sym_hdr.cbSsExtOffset,
4579: "External strings");
4580:
4581: if (orig_sym_hdr.ifdMax > 0) /* file tables */
4582: orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4583: orig_sym_hdr.cbFdOffset,
4584: "File tables");
4585:
4586: if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4587: orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4588: orig_sym_hdr.cbRfdOffset,
4589: "Relative file descriptors");
4590:
4591: if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4592: orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4593: orig_sym_hdr.cbExtOffset,
4594: "External symbols");
4595:
4596: if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4597: {
4598: orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4599: orig_sym_hdr.cbDnOffset,
4600: "Dense numbers");
4601:
4602: add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4603: }
4604:
4605: if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4606: orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4607: orig_sym_hdr.cbOptOffset,
4608: "Optimizer symbols");
4609:
4610:
4611:
4612: /* Abort if the symbol table is not last. */
4613: if (max_file_offset != stat_buf.st_size)
4614: fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4615: max_file_offset,
4616: stat_buf.st_size);
4617:
4618:
4619: /* If the first original file descriptor is a dummy which the assembler
4620: put out, but there are no symbols in it, skip it now. */
4621: if (orig_sym_hdr.ifdMax > 1
4622: && orig_files->csym == 2
4623: && orig_files->caux == 0)
4624: {
4625: char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
1.1.1.4 root 4626: char *suffix = local_rindex (filename, '.');
1.1 root 4627:
4628: if (suffix != (char *)0 && strcmp (suffix, ".s") == 0)
4629: delete_ifd = 1;
4630: }
4631:
4632:
4633: /* Create array to map original file numbers to the new file numbers
4634: (in case there are duplicate filenames, we collapse them into one
4635: file section, the MIPS assembler may or may not collapse them). */
4636:
4637: remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4638:
4639: for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4640: {
4641: register FDR *fd_ptr = ORIG_FILES (fd);
4642: register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4643:
4644: /* file support itself. */
4645: add_file (filename, filename + strlen (filename));
4646: remap_file_number[fd] = cur_file_ptr->file_index;
4647: }
4648:
4649: if (delete_ifd > 0) /* just in case */
4650: remap_file_number[0] = remap_file_number[1];
4651:
4652:
4653: /* Loop, adding each of the external symbols. These must be in
4654: order or otherwise we would have to change the relocation
4655: entries. We don't just call add_bytes, because we need to have
4656: the names put into the external hash table. We set the type to
4657: 'void' for now, and parse_def will fill in the correct type if it
4658: is in the symbol table. We must add the external symbols before
4659: the locals, since the locals do lookups against the externals. */
4660:
4661: if (debug)
4662: fprintf (stderr, "\tehash\n");
4663:
4664: for (es = 0; es < orig_sym_hdr.iextMax; es++)
4665: {
4666: register EXTR *eptr = orig_ext_syms + es;
4667: register char *ename = ORIG_ESTRS (eptr->asym.iss);
4668: register unsigned ifd = eptr->ifd;
4669:
4670: (void) add_ext_symbol (ename,
4671: ename + strlen (ename),
4672: (st_t) eptr->asym.st,
4673: (sc_t) eptr->asym.sc,
4674: eptr->asym.value,
4675: (symint_t)((eptr->asym.index == indexNil) ? indexNil : 0),
4676: (ifd < orig_sym_hdr.ifdMax) ? remap_file_number[ ifd ] : ifd);
4677: }
4678:
4679:
4680: /* For each of the files in the object file, copy the symbols, and such
4681: into the varrays for the new object file. */
4682:
4683: for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4684: {
4685: register FDR *fd_ptr = ORIG_FILES (fd);
4686: register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4687: register SYMR *sym_start;
4688: register SYMR *sym;
4689: register SYMR *sym_end_p1;
4690: register PDR *proc_start;
4691: register PDR *proc;
4692: register PDR *proc_end_p1;
4693:
4694: /* file support itself. */
4695: add_file (filename, filename + strlen (filename));
4696: cur_file_ptr->orig_fdr = fd_ptr;
4697:
4698: /* Copy stuff that's just passed through (such as line #'s) */
4699: cur_file_ptr->fdr.adr = fd_ptr->adr;
4700: cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4701: cur_file_ptr->fdr.cline = fd_ptr->cline;
4702: cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4703: cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4704: cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4705: cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4706: cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4707: cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4708: cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4709:
4710: if (debug)
4711: fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4712:
4713: /* For each of the static and global symbols defined, add them
4714: to the hash table of original symbols, so we can look up
4715: their values. */
4716:
4717: sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4718: sym_end_p1 = sym_start + fd_ptr->csym;
4719: for (sym = sym_start; sym < sym_end_p1; sym++)
4720: {
4721: switch ((st_t) sym->st)
4722: {
4723: default:
4724: break;
4725:
4726: case st_Global:
4727: case st_Static:
4728: case st_Label:
4729: case st_Proc:
4730: case st_StaticProc:
4731: {
4732: auto symint_t hash_index;
4733: register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4734: register Size_t len = strlen (str);
4735: register shash_t *shash_ptr = hash_string (str,
4736: (Ptrdiff_t)len,
4737: &orig_str_hash[0],
4738: &hash_index);
4739:
4740: if (shash_ptr != (shash_t *)0)
4741: error ("internal error, %s is already in original symbol table", str);
4742:
4743: else
4744: {
4745: shash_ptr = allocate_shash ();
4746: shash_ptr->next = orig_str_hash[hash_index];
4747: orig_str_hash[hash_index] = shash_ptr;
4748:
4749: shash_ptr->len = len;
1.1.1.4 root 4750: shash_ptr->indx = indexNil;
1.1 root 4751: shash_ptr->string = str;
4752: shash_ptr->sym_ptr = sym;
4753: }
4754: }
4755: break;
4756:
4757: case st_End:
4758: if ((sc_t) sym->sc == sc_Text)
4759: {
4760: register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4761:
4762: if (*str != '\0')
4763: {
4764: register Size_t len = strlen (str);
4765: register shash_t *shash_ptr = hash_string (str,
4766: (Ptrdiff_t)len,
4767: &orig_str_hash[0],
4768: (symint_t *)0);
4769:
4770: if (shash_ptr != (shash_t *)0)
4771: shash_ptr->end_ptr = sym;
4772: }
4773: }
4774: break;
4775:
4776: }
4777: }
4778:
4779: if (debug)
4780: {
4781: fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4782: fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4783: }
4784:
4785: /* Go through each of the procedures in this file, and add the
4786: procedure pointer to the hash entry for the given name. */
4787:
4788: proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4789: proc_end_p1 = proc_start + fd_ptr->cpd;
4790: for (proc = proc_start; proc < proc_end_p1; proc++)
4791: {
4792: register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4793: register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4794: register Size_t len = strlen (str);
4795: register shash_t *shash_ptr = hash_string (str,
4796: (Ptrdiff_t)len,
4797: &orig_str_hash[0],
4798: (symint_t *)0);
4799:
4800: if (shash_ptr == (shash_t *)0)
4801: error ("internal error, function %s is not in original symbol table", str);
4802:
4803: else
4804: shash_ptr->proc_ptr = proc;
4805: }
4806:
4807: if (debug)
4808: fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4809:
4810: }
4811: cur_file_ptr = first_file;
4812:
4813:
4814: /* Copy all of the object file up to the symbol table. Originally
4815: we were going to use ftruncate, but that doesn't seem to work
4816: on Ultrix 3.1.... */
4817:
4818: if (fseek (obj_in_stream, (long)0, SEEK_SET) != 0)
4819: pfatal_with_name (obj_in_name);
4820:
4821: if (fseek (object_stream, (long)0, SEEK_SET) != 0)
4822: pfatal_with_name (object_name);
4823:
4824: for (remaining = orig_file_header.f_symptr;
4825: remaining > 0;
4826: remaining -= num_write)
4827: {
4828: num_write = (remaining <= sizeof (buffer)) ? remaining : sizeof (buffer);
4829: sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
4830: if (sys_read <= 0)
4831: pfatal_with_name (obj_in_name);
4832:
4833: else if (sys_read != num_write)
4834: fatal ("Wanted to read %d bytes from %s, system returned %d",
4835: num_write,
4836: obj_in_name,
4837: sys_read);
4838:
4839: sys_write = fwrite (buffer, 1, num_write, object_stream);
4840: if (sys_write <= 0)
4841: pfatal_with_name (object_name);
4842:
4843: else if (sys_write != num_write)
4844: fatal ("Wrote %d bytes to %s, system returned %d",
4845: num_write,
4846: object_name,
4847: sys_write);
4848: }
4849: }
4850:
4851:
4852: /* Ye olde main program. */
4853:
4854: int
4855: main (argc, argv)
4856: int argc;
4857: char *argv[];
4858: {
4859: int iflag = 0;
1.1.1.4 root 4860: char *p = local_rindex (argv[0], '/');
1.1 root 4861: char *num_end;
4862: int option;
4863: int i;
4864:
4865: progname = (p != 0) ? p+1 : argv[0];
4866:
4867: (void) signal (SIGSEGV, catch_signal);
4868: (void) signal (SIGBUS, catch_signal);
4869: (void) signal (SIGABRT, catch_signal);
4870:
4871: #if !defined(__SABER__) && !defined(lint)
4872: if (sizeof (efdr_t) > PAGE_USIZE)
4873: fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4874: sizeof (efdr_t),
4875: PAGE_USIZE);
4876:
4877: if (sizeof (page_t) != PAGE_USIZE)
4878: fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4879: sizeof (page_t),
4880: PAGE_USIZE);
4881:
4882: #endif
4883:
4884: alloc_counts[ alloc_type_none ].alloc_name = "none";
4885: alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4886: alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4887: alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4888: alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4889: alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4890: alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4891: alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4892: alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4893:
4894: int_type_info = type_info_init;
4895: int_type_info.basic_type = bt_Int;
4896:
4897: void_type_info = type_info_init;
4898: void_type_info.basic_type = bt_Void;
4899:
4900: while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4901: switch (option)
4902: {
4903: default:
4904: had_errors++;
4905: break;
4906:
4907: case 'd':
4908: debug = strtol (optarg, &num_end, 0);
4909: if ((unsigned)debug > 4 || num_end == optarg)
4910: had_errors++;
4911:
4912: break;
4913:
4914: case 'I':
4915: if (rename_output || obj_in_name != (char *)0)
4916: had_errors++;
4917: else
4918: rename_output = 1;
4919:
4920: /* fall through to 'i' case. */
4921:
4922: case 'i':
4923: if (obj_in_name == (char *)0)
4924: {
4925: obj_in_name = optarg;
4926: iflag++;
4927: }
4928: else
4929: had_errors++;
4930: break;
4931:
4932: case 'o':
4933: if (object_name == (char *)0)
4934: object_name = optarg;
4935: else
4936: had_errors++;
4937: break;
4938:
4939: case 'v':
4940: version++;
4941: break;
4942: }
4943:
4944: if (obj_in_name == (char *)0 && optind <= argc - 2)
4945: obj_in_name = argv[--argc];
4946:
4947: if (object_name == (char *)0 && optind <= argc - 2)
4948: object_name = argv[--argc];
4949:
4950: /* If there is an output name, but no input name use
4951: the same file for both, deleting the name between
4952: opening it for input and opening it for output. */
4953: if (obj_in_name == (char *)0 && object_name != (char *)0)
4954: {
4955: obj_in_name = object_name;
4956: delete_input = 1;
4957: }
4958:
4959: if (object_name == (char *)0 || had_errors || optind != argc - 1)
4960: {
4961: fprintf (stderr, "Calling Sequence:\n");
4962: fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4963: fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4964: fprintf (stderr, "\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n");
4965: fprintf (stderr, "\n");
4966: fprintf (stderr, "Debug levels are:\n");
4967: fprintf (stderr, " 1\tGeneral debug + trace functions/blocks.\n");
4968: fprintf (stderr, " 2\tDebug level 1 + trace externals.\n");
4969: fprintf (stderr, " 3\tDebug level 2 + trace all symbols.\n");
4970: fprintf (stderr, " 4\tDebug level 3 + trace memory allocations.\n");
4971: return 1;
4972: }
4973:
4974:
4975: if (version)
4976: {
4977: fprintf (stderr, "mips-tfile version %s", version_string);
4978: #ifdef TARGET_VERSION
4979: TARGET_VERSION;
4980: #endif
4981: fputc ('\n', stderr);
4982: }
4983:
4984: if (obj_in_name == (char *)0)
4985: obj_in_name = object_name;
4986:
4987: if (rename_output && rename (object_name, obj_in_name) != 0)
4988: {
4989: char *buffer = (char *) allocate_multiple_pages (4);
4990: int len;
4991: int len2;
4992: int in_fd;
4993: int out_fd;
4994:
4995: /* Rename failed, copy input file */
4996: in_fd = open (object_name, O_RDONLY, 0666);
4997: if (in_fd < 0)
4998: pfatal_with_name (object_name);
4999:
5000: out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
5001: if (out_fd < 0)
5002: pfatal_with_name (obj_in_name);
5003:
5004: while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
5005: {
5006: len2 = write (out_fd, buffer, len);
5007: if (len2 < 0)
5008: pfatal_with_name (object_name);
5009:
5010: if (len != len2)
5011: fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
5012: }
5013:
5014: free_multiple_pages ((page_t *)buffer, 4);
5015:
5016: if (len < 0)
5017: pfatal_with_name (object_name);
5018:
5019: if (close (in_fd) < 0)
5020: pfatal_with_name (object_name);
5021:
5022: if (close (out_fd) < 0)
5023: pfatal_with_name (obj_in_name);
5024: }
5025:
5026: /* Must open input before output, since the output may be the same file, and
5027: we need to get the input handle before truncating it. */
5028: obj_in_stream = fopen (obj_in_name, "r");
5029: if (obj_in_stream == (FILE *)0)
5030: pfatal_with_name (obj_in_name);
5031:
5032: if (delete_input && unlink (obj_in_name) != 0)
5033: pfatal_with_name (obj_in_name);
5034:
5035: object_stream = fopen (object_name, "w");
5036: if (object_stream == (FILE *)0)
5037: pfatal_with_name (object_name);
5038:
5039: if (strcmp (argv[optind], "-") != 0)
5040: {
5041: input_name = argv[optind];
5042: if (freopen (argv[optind], "r", stdin) != stdin)
5043: pfatal_with_name (argv[optind]);
5044: }
5045:
5046: copy_object (); /* scan & copy object file */
5047: parse_input (); /* scan all of input */
5048:
5049: update_headers (); /* write out tfile */
5050: write_object ();
5051:
5052: if (debug)
5053: {
5054: fprintf (stderr, "\n\tAllocation summary:\n\n");
5055: for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
5056: if (alloc_counts[i].total_alloc)
5057: {
5058: fprintf (stderr,
5059: "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
5060: alloc_counts[i].alloc_name,
5061: alloc_counts[i].total_alloc,
5062: alloc_counts[i].total_free,
5063: alloc_counts[i].total_pages);
5064: }
5065: }
5066:
5067: return (had_errors) ? 1 : 0;
5068: }
5069:
5070:
5071: /* Catch a signal and exit without dumping core. */
5072:
5073: STATIC void
5074: catch_signal (signum)
5075: int signum;
5076: {
5077: (void) signal (signum, SIG_DFL); /* just in case... */
1.1.1.7 ! root 5078: #ifdef NO_SYS_SIGLIST
! 5079: fatal ("caught signal");
! 5080: #else
1.1 root 5081: fatal (sys_siglist[signum]);
1.1.1.7 ! root 5082: #endif
1.1 root 5083: }
5084:
5085: /* Print a fatal error message. NAME is the text.
5086: Also include a system error message based on `errno'. */
5087:
5088: void
5089: pfatal_with_name (msg)
5090: char *msg;
5091: {
5092: int save_errno = errno; /* just in case.... */
5093: if (line_number > 0)
5094: fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5095: else
5096: fprintf (stderr, "%s:", progname);
5097:
5098: errno = save_errno;
5099: if (errno == 0)
5100: fprintf (stderr, "[errno = 0] %s\n", msg);
5101: else
5102: perror (msg);
5103:
5104: exit (1);
5105: }
5106:
5107:
5108: /* Procedure to abort with an out of bounds error message. It has
5109: type int, so it can be used with an ?: expression within the
5110: ORIG_xxx macros, but the function never returns. */
5111:
5112: static int
1.1.1.4 root 5113: out_of_bounds (indx, max, str, prog_line)
5114: symint_t indx; /* index that is out of bounds */
1.1 root 5115: symint_t max; /* maximum index */
5116: const char *str; /* string to print out */
5117: int prog_line; /* line number within mips-tfile.c */
5118: {
1.1.1.4 root 5119: if (indx < max) /* just in case */
1.1 root 5120: return 0;
5121:
5122: fprintf (stderr, "%s, %s:%ld index %u is out of bounds for %s, max is %u, mips-tfile.c line# %d\n",
1.1.1.4 root 5123: progname, input_name, line_number, indx, str, max, prog_line);
1.1 root 5124:
5125: exit (1);
5126: return 0; /* turn off warning messages */
5127: }
5128:
5129:
5130: /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5131: like sbrk's behind it's back (or sbrk isn't available). If we use
5132: sbrk, we assume it gives us zeroed pages. */
5133:
5134: #ifndef MALLOC_CHECK
5135: #ifdef USE_MALLOC
5136:
5137: STATIC page_t *
5138: allocate_cluster (npages)
5139: Size_t npages;
5140: {
5141: register page_t *value = (page_t *) calloc (npages, PAGE_USIZE);
5142:
5143: if (value == 0)
5144: fatal ("Virtual memory exhausted.");
5145:
5146: if (debug > 3)
5147: fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5148:
5149: return value;
5150: }
5151:
5152: #else /* USE_MALLOC */
5153:
5154: STATIC page_t *
5155: allocate_cluster (npages)
5156: Size_t npages;
5157: {
5158: register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5159: unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5160:
5161: if (offset != 0) /* align to a page boundary */
5162: {
5163: if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5164: pfatal_with_name ("allocate_cluster");
5165:
5166: ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5167: }
5168:
5169: if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5170: pfatal_with_name ("allocate_cluster");
5171:
5172: if (debug > 3)
5173: fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, ptr);
5174:
5175: return ptr;
5176: }
5177:
5178: #endif /* USE_MALLOC */
5179:
5180:
5181: static page_t *cluster_ptr = NULL;
5182: static unsigned pages_left = 0;
5183:
5184: #endif /* MALLOC_CHECK */
5185:
5186:
5187: /* Allocate some pages (which is initialized to 0). */
5188:
5189: STATIC page_t *
5190: allocate_multiple_pages (npages)
5191: Size_t npages;
5192: {
5193: #ifndef MALLOC_CHECK
5194: if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5195: {
5196: pages_left = MAX_CLUSTER_PAGES;
5197: cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5198: }
5199:
5200: if (npages <= pages_left)
5201: {
5202: page_t *ptr = cluster_ptr;
5203: cluster_ptr += npages;
5204: pages_left -= npages;
5205: return ptr;
5206: }
5207:
5208: return allocate_cluster (npages);
5209:
5210: #else /* MALLOC_CHECK */
5211: return (page_t *) xcalloc (npages, PAGE_SIZE);
5212:
5213: #endif /* MALLOC_CHECK */
5214: }
5215:
5216:
5217: /* Release some pages. */
5218:
5219: STATIC void
5220: free_multiple_pages (page_ptr, npages)
5221: page_t *page_ptr;
5222: Size_t npages;
5223: {
5224: #ifndef MALLOC_CHECK
5225: if (pages_left == 0)
5226: {
5227: cluster_ptr = page_ptr;
5228: pages_left = npages;
5229: }
5230:
5231: else if ((page_ptr + npages) == cluster_ptr)
5232: {
5233: cluster_ptr -= npages;
5234: pages_left += npages;
5235: }
5236:
5237: /* otherwise the page is not freed. If more than call is
5238: done, we probably should worry about it, but at present,
5239: the free pages is done right after an allocate. */
5240:
5241: #else /* MALLOC_CHECK */
5242: free ((char *) page_ptr);
5243:
5244: #endif /* MALLOC_CHECK */
5245: }
5246:
5247:
5248: /* Allocate one page (which is initialized to 0). */
5249:
5250: STATIC page_t *
5251: allocate_page __proto((void))
5252: {
5253: #ifndef MALLOC_CHECK
5254: if (pages_left == 0)
5255: {
5256: pages_left = MAX_CLUSTER_PAGES;
5257: cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5258: }
5259:
5260: pages_left--;
5261: return cluster_ptr++;
5262:
5263: #else /* MALLOC_CHECK */
5264: return (page_t *) xcalloc (1, PAGE_SIZE);
5265:
5266: #endif /* MALLOC_CHECK */
5267: }
5268:
5269:
5270: /* Allocate scoping information. */
5271:
5272: STATIC scope_t *
5273: allocate_scope __proto((void))
5274: {
5275: register scope_t *ptr;
5276: static scope_t initial_scope;
5277:
5278: #ifndef MALLOC_CHECK
5279: ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5280: if (ptr != (scope_t *)0)
5281: alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5282:
5283: else
5284: {
5285: register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5286: register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5287:
5288: if (unallocated == 0)
5289: {
5290: unallocated = PAGE_SIZE / sizeof (scope_t);
5291: alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5292: alloc_counts[ (int)alloc_type_scope ].total_pages++;
5293: }
5294:
5295: ptr = &cur_page->scope[ --unallocated ];
5296: alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5297: }
5298:
5299: #else
5300: ptr = (scope_t *) xmalloc (sizeof (scope_t));
5301:
5302: #endif
5303:
5304: alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5305: *ptr = initial_scope;
5306: return ptr;
5307: }
5308:
5309: /* Free scoping information. */
5310:
5311: STATIC void
5312: free_scope (ptr)
5313: scope_t *ptr;
5314: {
5315: alloc_counts[ (int)alloc_type_scope ].total_free++;
5316:
5317: #ifndef MALLOC_CHECK
5318: ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5319: alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5320:
5321: #else
5322: xfree ((PTR_T) ptr);
5323: #endif
5324:
5325: }
5326:
5327:
5328: /* Allocate links for pages in a virtual array. */
5329:
5330: STATIC vlinks_t *
5331: allocate_vlinks __proto((void))
5332: {
5333: register vlinks_t *ptr;
5334: static vlinks_t initial_vlinks;
5335:
5336: #ifndef MALLOC_CHECK
5337: register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5338: register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5339:
5340: if (unallocated == 0)
5341: {
5342: unallocated = PAGE_SIZE / sizeof (vlinks_t);
5343: alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5344: alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5345: }
5346:
5347: ptr = &cur_page->vlinks[ --unallocated ];
5348: alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5349:
5350: #else
5351: ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5352:
5353: #endif
5354:
5355: alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5356: *ptr = initial_vlinks;
5357: return ptr;
5358: }
5359:
5360:
5361: /* Allocate string hash buckets. */
5362:
5363: STATIC shash_t *
5364: allocate_shash __proto((void))
5365: {
5366: register shash_t *ptr;
5367: static shash_t initial_shash;
5368:
5369: #ifndef MALLOC_CHECK
5370: register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5371: register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5372:
5373: if (unallocated == 0)
5374: {
5375: unallocated = PAGE_SIZE / sizeof (shash_t);
5376: alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5377: alloc_counts[ (int)alloc_type_shash ].total_pages++;
5378: }
5379:
5380: ptr = &cur_page->shash[ --unallocated ];
5381: alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5382:
5383: #else
5384: ptr = (shash_t *) xmalloc (sizeof (shash_t));
5385:
5386: #endif
5387:
5388: alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5389: *ptr = initial_shash;
5390: return ptr;
5391: }
5392:
5393:
5394: /* Allocate type hash buckets. */
5395:
5396: STATIC thash_t *
5397: allocate_thash __proto((void))
5398: {
5399: register thash_t *ptr;
5400: static thash_t initial_thash;
5401:
5402: #ifndef MALLOC_CHECK
5403: register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5404: register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5405:
5406: if (unallocated == 0)
5407: {
5408: unallocated = PAGE_SIZE / sizeof (thash_t);
5409: alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5410: alloc_counts[ (int)alloc_type_thash ].total_pages++;
5411: }
5412:
5413: ptr = &cur_page->thash[ --unallocated ];
5414: alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5415:
5416: #else
5417: ptr = (thash_t *) xmalloc (sizeof (thash_t));
5418:
5419: #endif
5420:
5421: alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5422: *ptr = initial_thash;
5423: return ptr;
5424: }
5425:
5426:
5427: /* Allocate structure, union, or enum tag information. */
5428:
5429: STATIC tag_t *
5430: allocate_tag __proto((void))
5431: {
5432: register tag_t *ptr;
5433: static tag_t initial_tag;
5434:
5435: #ifndef MALLOC_CHECK
5436: ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5437: if (ptr != (tag_t *)0)
5438: alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5439:
5440: else
5441: {
5442: register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5443: register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5444:
5445: if (unallocated == 0)
5446: {
5447: unallocated = PAGE_SIZE / sizeof (tag_t);
5448: alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5449: alloc_counts[ (int)alloc_type_tag ].total_pages++;
5450: }
5451:
5452: ptr = &cur_page->tag[ --unallocated ];
5453: alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5454: }
5455:
5456: #else
5457: ptr = (tag_t *) xmalloc (sizeof (tag_t));
5458:
5459: #endif
5460:
5461: alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5462: *ptr = initial_tag;
5463: return ptr;
5464: }
5465:
5466: /* Free scoping information. */
5467:
5468: STATIC void
5469: free_tag (ptr)
5470: tag_t *ptr;
5471: {
5472: alloc_counts[ (int)alloc_type_tag ].total_free++;
5473:
5474: #ifndef MALLOC_CHECK
5475: ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5476: alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5477:
5478: #else
5479: xfree ((PTR_T) ptr);
5480: #endif
5481:
5482: }
5483:
5484:
5485: /* Allocate forward reference to a yet unknown tag. */
5486:
5487: STATIC forward_t *
5488: allocate_forward __proto((void))
5489: {
5490: register forward_t *ptr;
5491: static forward_t initial_forward;
5492:
5493: #ifndef MALLOC_CHECK
5494: ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5495: if (ptr != (forward_t *)0)
5496: alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5497:
5498: else
5499: {
5500: register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5501: register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5502:
5503: if (unallocated == 0)
5504: {
5505: unallocated = PAGE_SIZE / sizeof (forward_t);
5506: alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5507: alloc_counts[ (int)alloc_type_forward ].total_pages++;
5508: }
5509:
5510: ptr = &cur_page->forward[ --unallocated ];
5511: alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5512: }
5513:
5514: #else
5515: ptr = (forward_t *) xmalloc (sizeof (forward_t));
5516:
5517: #endif
5518:
5519: alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5520: *ptr = initial_forward;
5521: return ptr;
5522: }
5523:
5524: /* Free scoping information. */
5525:
5526: STATIC void
5527: free_forward (ptr)
5528: forward_t *ptr;
5529: {
5530: alloc_counts[ (int)alloc_type_forward ].total_free++;
5531:
5532: #ifndef MALLOC_CHECK
5533: ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5534: alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5535:
5536: #else
5537: xfree ((PTR_T) ptr);
5538: #endif
5539:
5540: }
5541:
5542:
5543: /* Allocate head of type hash list. */
5544:
5545: STATIC thead_t *
5546: allocate_thead __proto((void))
5547: {
5548: register thead_t *ptr;
5549: static thead_t initial_thead;
5550:
5551: #ifndef MALLOC_CHECK
5552: ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5553: if (ptr != (thead_t *)0)
5554: alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5555:
5556: else
5557: {
5558: register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5559: register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5560:
5561: if (unallocated == 0)
5562: {
5563: unallocated = PAGE_SIZE / sizeof (thead_t);
5564: alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5565: alloc_counts[ (int)alloc_type_thead ].total_pages++;
5566: }
5567:
5568: ptr = &cur_page->thead[ --unallocated ];
5569: alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5570: }
5571:
5572: #else
5573: ptr = (thead_t *) xmalloc (sizeof (thead_t));
5574:
5575: #endif
5576:
5577: alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5578: *ptr = initial_thead;
5579: return ptr;
5580: }
5581:
5582: /* Free scoping information. */
5583:
5584: STATIC void
5585: free_thead (ptr)
5586: thead_t *ptr;
5587: {
5588: alloc_counts[ (int)alloc_type_thead ].total_free++;
5589:
5590: #ifndef MALLOC_CHECK
5591: ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5592: alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5593:
5594: #else
5595: xfree ((PTR_T) ptr);
5596: #endif
5597:
5598: }
5599:
1.1.1.4 root 5600: #endif /* MIPS_DEBUGGING_INFO */
1.1 root 5601:
5602:
1.1.1.7 ! root 5603: #ifdef HAVE_VPRINTF
! 5604:
1.1 root 5605: /* Output an error message and exit */
5606:
5607: /*VARARGS*/
5608: void
1.1.1.7 ! root 5609: fatal VPROTO((char *format, ...))
1.1 root 5610: {
1.1.1.7 ! root 5611: #ifndef __STDC__
1.1 root 5612: char *format;
1.1.1.7 ! root 5613: #endif
! 5614: va_list ap;
! 5615:
! 5616: VA_START (ap, format);
! 5617:
! 5618: #ifndef __STDC__
! 5619: format = va_arg (ap, char*);
! 5620: #endif
1.1 root 5621:
5622: if (line_number > 0)
5623: fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5624: else
5625: fprintf (stderr, "%s:", progname);
5626:
5627: vfprintf (stderr, format, ap);
5628: va_end (ap);
5629: fprintf (stderr, "\n");
5630: if (line_number > 0)
5631: fprintf (stderr, "line:\t%s\n", cur_line_start);
5632:
5633: saber_stop ();
5634: exit (1);
5635: }
5636:
5637: /*VARARGS*/
5638: void
1.1.1.7 ! root 5639: error VPROTO((char *format, ...))
1.1 root 5640: {
1.1.1.7 ! root 5641: #ifndef __STDC__
1.1 root 5642: char *format;
1.1.1.7 ! root 5643: #endif
! 5644: va_list ap;
! 5645:
! 5646: VA_START (ap, format);
! 5647:
! 5648: #ifndef __STDC__
! 5649: format = va_arg (ap, char*);
! 5650: #endif
1.1 root 5651:
5652: if (line_number > 0)
5653: fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5654: else
5655: fprintf (stderr, "%s:", progname);
5656:
5657: vfprintf (stderr, format, ap);
5658: fprintf (stderr, "\n");
5659: if (line_number > 0)
5660: fprintf (stderr, "line:\t%s\n", cur_line_start);
5661:
5662: had_errors++;
5663: va_end (ap);
5664:
5665: saber_stop ();
5666: }
5667:
1.1.1.7 ! root 5668: #else /* not HAVE_VPRINTF */
! 5669:
! 5670: void
! 5671: fatal (msg, arg1, arg2)
! 5672: char *msg, *arg1, *arg2;
! 5673: {
! 5674: error (msg, arg1, arg2);
! 5675: exit (1);
! 5676: }
! 5677:
! 5678: void
! 5679: error (msg, arg1, arg2)
! 5680: char *msg, *arg1, *arg2;
! 5681: {
! 5682: fprintf (stderr, "%s: ", progname);
! 5683: fprintf (stderr, msg, arg1, arg2);
! 5684: fprintf (stderr, "\n");
! 5685: }
! 5686:
! 5687: #endif /* not HAVE_VPRINTF */
! 5688:
1.1 root 5689: /* More 'friendly' abort that prints the line and file.
5690: config.h can #define abort fancy_abort if you like that sort of thing. */
5691:
5692: void
5693: fancy_abort ()
5694: {
5695: fatal ("Internal abort.");
5696: }
5697:
5698:
5699: /* When `malloc.c' is compiled with `rcheck' defined,
5700: it calls this function to report clobberage. */
5701:
5702: void
5703: botch (s)
5704: const char *s;
5705: {
5706: fatal (s);
5707: }
5708:
5709: /* Same as `malloc' but report error if no memory available. */
5710:
5711: PTR_T
5712: xmalloc (size)
5713: Size_t size;
5714: {
5715: register PTR_T value = malloc (size);
5716: if (value == 0)
5717: fatal ("Virtual memory exhausted.");
5718:
5719: if (debug > 3)
5720: fprintf (stderr, "\tmalloc\tptr = 0x%.8x, size = %10u\n", value, size);
5721:
5722: return value;
5723: }
5724:
5725: /* Same as `calloc' but report error if no memory available. */
5726:
5727: PTR_T
5728: xcalloc (size1, size2)
5729: Size_t size1, size2;
5730: {
5731: register PTR_T value = calloc (size1, size2);
5732: if (value == 0)
5733: fatal ("Virtual memory exhausted.");
5734:
5735: if (debug > 3)
5736: fprintf (stderr, "\tcalloc\tptr = 0x%.8x, size1 = %10u, size2 = %10u [%u]\n",
5737: value, size1, size2, size1+size2);
5738:
5739: return value;
5740: }
5741:
5742: /* Same as `realloc' but report error if no memory available. */
5743:
5744: PTR_T
5745: xrealloc (ptr, size)
5746: PTR_T ptr;
5747: Size_t size;
5748: {
5749: register PTR_T result = realloc (ptr, size);
5750: if (!result)
5751: fatal ("Virtual memory exhausted.");
5752:
5753: if (debug > 3)
5754: fprintf (stderr, "\trealloc\tptr = 0x%.8x, size = %10u, orig = 0x%.8x\n",
5755: result, size, ptr);
5756:
5757: return result;
5758: }
5759:
5760: void
5761: xfree (ptr)
5762: PTR_T ptr;
5763: {
5764: if (debug > 3)
5765: fprintf (stderr, "\tfree\tptr = 0x%.8x\n", ptr);
5766:
5767: free (ptr);
5768: }
1.1.1.4 root 5769:
5770:
5771: /* Define our own index/rindex, since the local and global symbol
5772: structures as defined by MIPS has an 'index' field. */
5773:
5774: STATIC char *
5775: local_index (str, sentinel)
5776: const char *str;
5777: int sentinel;
5778: {
5779: int ch;
5780:
5781: for ( ; (ch = *str) != sentinel; str++)
5782: {
5783: if (ch == '\0')
5784: return (char *)0;
5785: }
5786:
5787: return (char *)str;
5788: }
5789:
5790: STATIC char *
5791: local_rindex (str, sentinel)
5792: const char *str;
5793: int sentinel;
5794: {
5795: int ch;
5796: const char *ret = (const char *)0;
5797:
5798: for ( ; (ch = *str) != '\0'; str++)
5799: {
5800: if (ch == sentinel)
5801: ret = str;
5802: }
5803:
5804: return (char *)ret;
5805: }
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