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1 /* Copyright (C) 2013-2020 Free Software Foundation, Inc.
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111
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2
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3 This file is part of GCC.
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4
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5 modify it under the terms of the GNU Library General Public License
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6 as published by the Free Software Foundation; either version 2, or
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7 (at your option) any later version.
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8
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9 In addition to the permissions in the GNU Library General Public
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10 License, the Free Software Foundation gives you unlimited
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11 permission to link the compiled version of this file into
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12 combinations with other programs, and to distribute those
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13 combinations without any restriction coming from the use of this
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14 file. (The Library Public License restrictions do apply in other
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15 respects; for example, they cover modification of the file, and
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16 distribution when not linked into a combined executable.)
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17
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18 This program is distributed in the hope that it will be useful, but
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19 WITHOUT ANY WARRANTY; without even the implied warranty of
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20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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21 Library General Public License for more details.
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22
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23 You should have received a copy of the GNU Library General Public
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24 License along with this program; if not, write to the Free Software
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25 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
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26 02110-1301, USA. */
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27
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28
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29 #ifndef __VTV_H__
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30 #define __VTV_H__
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31
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32 /* We could have used an enumeration here but it just makes it more
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33 difficult for the compiler to generate a call to this. These are
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34 used as arguments to the function __VLTChangePermission, declared
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35 below. */
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36 #define __VLTP_READ_ONLY 0
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37 #define __VLTP_READ_WRITE 1
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38
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39 #ifdef __cplusplus
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40 extern "C" void __VLTChangePermission (int);
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41 #else
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42 extern void __VLTChangePermission (int);
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43 #endif
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44
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45 #ifdef BIG_PAGE_SIZE
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46 /* TODO - Replace '4096' below with correct big page size. */
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47 #define VTV_PAGE_SIZE 4096
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48 #else
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49 #if defined(__sun__) && defined(__svr4__) && defined(__sparc__)
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50 #define VTV_PAGE_SIZE 8192
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51 #else
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52 #define VTV_PAGE_SIZE 4096
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53 #endif
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54 #endif
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55
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56
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57
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58 #endif /* __VTV_H__ */
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