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428
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1 /* Synched up with: FSF 19.31. */
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2
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3 /* machine description file for Sun 68000's OPERATING SYSTEM version 3
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4 (for either 68000 or 68020 systems). */
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5
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6 #include "sun2.h"
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7 #undef sun2
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8 #ifndef sun3
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9 #define sun3
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10 #endif
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11
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12 /* The following line tells the configuration script what sort of
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13 operating system this machine is likely to run.
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14 USUAL-OPSYS="note"
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15
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16 NOTE-START
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17 Sun 1, 2 and 3 (-machine=sun1, -machine=sun2, -machine=sun3;
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18 -opsystem=bsd4-2 or -opsystem=sunos4)
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19
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20 Whether you should use sun1, sun2 or sun3 depends on the
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21 VERSION OF THE OPERATING SYSTEM
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22 you have. There are three machine types for different versions of
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23 SunOS. All are derived from Berkeley 4.2, meaning that you should
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24 use -opsystem=bsd4-2. Emacs 17 has run on all of them. You will
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25 need to use sun3 on Sun 2's running SunOS release 3.
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26
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27 For SunOS release 4 on a Sun 3, use -machine=sun3 and
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28 -opsystem=sunos4. See the file share-lib/SUNBUG for how to solve
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29 problems caused by bugs in the "export" version of SunOS 4.
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30 NOTE-END */
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31
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32 /* Say that the text segment of a.out includes the header;
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33 the header actually occupies the first few bytes of the text segment
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34 and is counted in hdr.a_text. */
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35
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36 #define A_TEXT_OFFSET(HDR) sizeof (HDR)
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37
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38 /* This is the offset of the executable's text, from the start of the file. */
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39
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40 #define A_TEXT_SEEK(HDR) (N_TXTOFF (hdr) + sizeof (hdr))
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41
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42 /* In case we are using floating point, work together with crt0.c. */
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43
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44 #ifndef __GNUC__
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45 #define C_SWITCH_MACHINE "-fsoft"
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46 #endif
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47
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48 /* This line is needed if you are linking with X windows
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49 and the library xlib was compiled to use the 68881.
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50 For maximum cleanliness, don't edit this file;
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51 instead, insert this line in config.h. */
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52 /* #define START_FILES crt0.o /usr/lib/Mcrt1.o */
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