diff -r 1af5c1be89f8 -r 92d87f2e53c2 tools/elf4rom/libs/libelf-0.8.10/lib/byteswap.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tools/elf4rom/libs/libelf-0.8.10/lib/byteswap.h Fri Jan 15 09:07:44 2010 +0000 @@ -0,0 +1,95 @@ +/* +byteswap.h - functions and macros for byte swapping. +Copyright (C) 1995 - 2001 Michael Riepe + +This library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public +License as published by the Free Software Foundation; either +version 2 of the License, or (at your option) any later version. + +This library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with this library; if not, write to the Free Software +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +/* @(#) $Id: byteswap.h,v 1.6 2005/05/21 15:39:20 michael Exp $ */ + +#ifndef _BYTESWAP_H +#define _BYTESWAP_H + +#define lu(from,i,s) (((__libelf_u32_t)((unsigned char*)(from))[i])<<(s)) +#define li(from,i,s) (((__libelf_i32_t)(( signed char*)(from))[i])<<(s)) + +#define __load_u16L(from) ((__libelf_u32_t) \ + (lu(from,1,8) | lu(from,0,0))) +#define __load_u16M(from) ((__libelf_u32_t) \ + (lu(from,0,8) | lu(from,1,0))) +#define __load_i16L(from) ((__libelf_i32_t) \ + (li(from,1,8) | lu(from,0,0))) +#define __load_i16M(from) ((__libelf_i32_t) \ + (li(from,0,8) | lu(from,1,0))) + +#define __load_u32L(from) ((__libelf_u32_t) \ + (lu(from,3,24) | lu(from,2,16) | lu(from,1,8) | lu(from,0,0))) +#define __load_u32M(from) ((__libelf_u32_t) \ + (lu(from,0,24) | lu(from,1,16) | lu(from,2,8) | lu(from,3,0))) +#define __load_i32L(from) ((__libelf_i32_t) \ + (li(from,3,24) | lu(from,2,16) | lu(from,1,8) | lu(from,0,0))) +#define __load_i32M(from) ((__libelf_i32_t) \ + (li(from,0,24) | lu(from,1,16) | lu(from,2,8) | lu(from,3,0))) + +#define su(to,i,v,s) (((char*)(to))[i]=((__libelf_u32_t)(v)>>(s))) +#define si(to,i,v,s) (((char*)(to))[i]=((__libelf_i32_t)(v)>>(s))) + +#define __store_u16L(to,v) \ + (su(to,1,v,8), su(to,0,v,0)) +#define __store_u16M(to,v) \ + (su(to,0,v,8), su(to,1,v,0)) +#define __store_i16L(to,v) \ + (si(to,1,v,8), si(to,0,v,0)) +#define __store_i16M(to,v) \ + (si(to,0,v,8), si(to,1,v,0)) + +#define __store_u32L(to,v) \ + (su(to,3,v,24), su(to,2,v,16), su(to,1,v,8), su(to,0,v,0)) +#define __store_u32M(to,v) \ + (su(to,0,v,24), su(to,1,v,16), su(to,2,v,8), su(to,3,v,0)) +#define __store_i32L(to,v) \ + (si(to,3,v,24), si(to,2,v,16), si(to,1,v,8), si(to,0,v,0)) +#define __store_i32M(to,v) \ + (si(to,0,v,24), si(to,1,v,16), si(to,2,v,8), si(to,3,v,0)) + +#if __LIBELF64 + +/* + * conversion functions from swap64.c + */ +extern __libelf_u64_t _elf_load_u64L(const unsigned char *from); +extern __libelf_u64_t _elf_load_u64M(const unsigned char *from); +extern __libelf_i64_t _elf_load_i64L(const unsigned char *from); +extern __libelf_i64_t _elf_load_i64M(const unsigned char *from); +extern void _elf_store_u64L(unsigned char *to, __libelf_u64_t v); +extern void _elf_store_u64M(unsigned char *to, __libelf_u64_t v); +extern void _elf_store_i64L(unsigned char *to, __libelf_u64_t v); +extern void _elf_store_i64M(unsigned char *to, __libelf_u64_t v); + +/* + * aliases for existing conversion code + */ +#define __load_u64L _elf_load_u64L +#define __load_u64M _elf_load_u64M +#define __load_i64L _elf_load_i64L +#define __load_i64M _elf_load_i64M +#define __store_u64L _elf_store_u64L +#define __store_u64M _elf_store_u64M +#define __store_i64L _elf_store_i64L +#define __store_i64M _elf_store_i64M + +#endif /* __LIBELF64 */ + +#endif /* _BYTESWAP_H */