| 1 | /* $Header: /cvsup/minix/src/commands/aal/object.h,v 1.1.1.1 2005/04/21 14:53:57 beng Exp $ */
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| 2 | /*
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| 3 | * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
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| 4 | * See the copyright notice in the ACK home directory, in the file "Copyright".
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| 5 | */
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| 6 | #include "byte_order.h"
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| 7 | #include <local.h>
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| 8 | #include <stdio.h>
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| 9 |
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| 10 | #if CHAR_UNSIGNED
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| 11 | #define Xchar(ch) (ch)
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| 12 | #else
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| 13 | #define Xchar(ch) ((ch) & 0377)
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| 14 | #endif
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| 15 |
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| 16 | #if ! defined(BYTES_REVERSED)
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| 17 | #define BYTES_REVERSED 1
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| 18 | #endif
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| 19 |
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| 20 | #if ! defined(WORDS_REVERSED)
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| 21 | #define WORDS_REVERSED 1
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| 22 | #endif
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| 23 |
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| 24 | #if BYTES_REVERSED
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| 25 | #define uget2(c) (Xchar((c)[0]) | ((unsigned) Xchar((c)[1]) << 8))
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| 26 | #define Xput2(i, c) (((c)[0] = (i)), ((c)[1] = (i) >> 8))
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| 27 | #define put2(i, c) { register int j = (i); Xput2(j, c); }
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| 28 | #else
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| 29 | #define uget2(c) (* ((unsigned short *) (c)))
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| 30 | #define Xput2(i, c) (* ((short *) (c)) = (i))
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| 31 | #define put2(i, c) Xput2(i, c)
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| 32 | #endif
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| 33 |
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| 34 | #define get2(c) ((short) uget2(c))
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| 35 |
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| 36 | #if WORDS_REVERSED || BYTES_REVERSED
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| 37 | #define get4(c) (uget2(c) | ((long) uget2((c)+2) << 16))
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| 38 | #define put4(l, c) { register long x=(l); \
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| 39 | Xput2((int)x,c); \
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| 40 | Xput2((int)(x>>16),(c)+2); \
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| 41 | }
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| 42 | #else
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| 43 | #define get4(c) (* ((long *) (c)))
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| 44 | #define put4(l, c) (* ((long *) (c)) = (l))
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| 45 | #endif
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| 46 |
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| 47 | #define SECTCNT 3 /* number of sections with own output buffer */
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| 48 | #if BIGMACHINE
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| 49 | #define WBUFSIZ (8*BUFSIZ)
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| 50 | #else
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| 51 | #define WBUFSIZ BUFSIZ
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| 52 | #endif
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| 53 |
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| 54 | struct fil {
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| 55 | int cnt;
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| 56 | char *pnow;
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| 57 | char *pbegin;
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| 58 | long currpos;
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| 59 | int fd;
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| 60 | char pbuf[WBUFSIZ];
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| 61 | };
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| 62 |
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| 63 | extern struct fil __parts[];
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| 64 |
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| 65 | #define PARTEMIT 0
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| 66 | #define PARTRELO (PARTEMIT+SECTCNT)
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| 67 | #define PARTNAME (PARTRELO+1)
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| 68 | #define PARTCHAR (PARTNAME+1)
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| 69 | #ifdef SYMDBUG
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| 70 | #define PARTDBUG (PARTCHAR+1)
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| 71 | #else
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| 72 | #define PARTDBUG (PARTCHAR+0)
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| 73 | #endif
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| 74 | #define NPARTS (PARTDBUG + 1)
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| 75 |
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| 76 | #define getsect(s) (PARTEMIT+((s)>=(SECTCNT-1)?(SECTCNT-1):(s)))
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