1 | /* |
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2 | * mman.c - User level <mman> library implementation. |
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3 | * |
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4 | * Author Alain Greiner (2016,2017,2018) |
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5 | * |
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6 | * Copyright (c) UPMC Sorbonne Universites |
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7 | * |
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8 | * This file is part of ALMOS-MKH. |
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9 | * |
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10 | * ALMOS-MKH is free software; you can redistribute it and/or modify it |
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11 | * under the terms of the GNU General Public License as published by |
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12 | * the Free Software Foundation; version 2.0 of the License. |
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13 | * |
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14 | * ALMOS-MKH is distributed in the hope that it will be useful, but |
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15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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17 | * General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with ALMOS-MKH; if not, write to the Free Software Foundation, |
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21 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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22 | */ |
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23 | |
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24 | #include <mman.h> |
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25 | #include <hal_types.h> |
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26 | #include <hal_user.h> |
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27 | #include <syscalls_numbers.h> |
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28 | |
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29 | ////////////////////////////////y |
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30 | int munmap( void * addr, |
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31 | unsigned int size ) |
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32 | { |
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33 | return hal_user_syscall( SYS_MUNMAP, |
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34 | (reg_t)addr, |
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35 | (reg_t)size, 0, 0 ); |
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36 | } |
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37 | |
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38 | /////////////////////////////// |
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39 | void * mmap( void * addr, |
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40 | unsigned int length, |
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41 | int prot, |
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42 | int flags, |
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43 | int fd, |
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44 | unsigned int offset ) |
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45 | { |
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46 | mmap_attr_t attr; |
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47 | |
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48 | attr.addr = addr; |
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49 | attr.length = length; |
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50 | attr.prot = prot; |
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51 | attr.flags = flags; |
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52 | attr.fdid = fd; |
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53 | attr.offset = offset; |
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54 | |
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55 | if( hal_user_syscall( SYS_MMAP, |
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56 | (reg_t)&attr, 0, 0, 0 ) ) return NULL; |
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57 | else return attr.addr; |
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58 | } |
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59 | |
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60 | |
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