1 /* 2 * Copyright (c) 2017, Google Inc. All rights reserved 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining 5 * a copy of this software and associated documentation files 6 * (the "Software"), to deal in the Software without restriction, 7 * including without limitation the rights to use, copy, modify, merge, 8 * publish, distribute, sublicense, and/or sell copies of the Software, 9 * and to permit persons to whom the Software is furnished to do so, 10 * subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be 13 * included in all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 22 */ 23 24 #ifndef __ARCH_USERCOPY_H 25 #define __ARCH_USERCOPY_H 26 27 #include <sys/types.h> 28 #include <inttypes.h> 29 30 #if IS_64BIT && USER_32BIT 31 typedef uint32_t user_addr_t; 32 typedef uint32_t user_size_t; 33 34 #define PRIxPTR_USER "x" 35 #define PRIxSIZE_USER "x" 36 #define PRIuSIZE_USER "u" 37 #else 38 typedef vaddr_t user_addr_t; 39 typedef size_t user_size_t; 40 41 #define PRIxPTR_USER PRIxVADDR 42 #define PRIxSIZE_USER "zx" 43 #define PRIuSIZE_USER "zu" 44 #endif 45 46 status_t arch_copy_from_user(void *kdest, user_addr_t usrc, size_t len); 47 status_t arch_copy_to_user(user_addr_t udest, const void *ksrc, size_t len); 48 ssize_t arch_strlcpy_from_user(char *kdst, user_addr_t usrc, size_t len); 49 50 #endif /* __ARCH_USERCOPY_H */ 51