1 #ifndef LZ4_WRAPPER_H 2 #define LZ4_WRAPPER_H 3 /* 4 * Squashfs 5 * 6 * Copyright (c) 2013 7 * Phillip Lougher <phillip (at) squashfs.org.uk> 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License 11 * as published by the Free Software Foundation; either version 2, 12 * or (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 22 * 23 * lz4_wrapper.h 24 * 25 */ 26 27 #ifndef linux 28 #define __BYTE_ORDER BYTE_ORDER 29 #define __BIG_ENDIAN BIG_ENDIAN 30 #define __LITTLE_ENDIAN LITTLE_ENDIAN 31 #else 32 #include <endian.h> 33 #endif 34 35 #if __BYTE_ORDER == __BIG_ENDIAN 36 extern unsigned int inswap_le32(unsigned int); 37 38 #define SQUASHFS_INSWAP_COMP_OPTS(s) { \ 39 (s)->version = inswap_le32((s)->version); \ 40 (s)->flags = inswap_le32((s)->flags); \ 41 } 42 #else 43 #define SQUASHFS_INSWAP_COMP_OPTS(s) 44 #endif 45 46 /* 47 * Define the various stream formats recognised. 48 * Currently omly legacy stream format is supported by the 49 * kernel 50 */ 51 #define LZ4_LEGACY 1 52 #define LZ4_FLAGS_MASK 1 53 54 /* Define the compression flags recognised. */ 55 #define LZ4_HC 1 56 57 struct lz4_comp_opts { 58 int version; 59 int flags; 60 }; 61 #endif 62
