/* SPDX-License-Identifier: GPL-2.0-or-later */#ifndef _OBJTOOL_ENDIANNESS_H#define _OBJTOOL_ENDIANNESS_H #include <arch/endianness.h>#include <linux/kernel.h>#include <endian.h> #ifndef __TARGET_BYTE_ORDER#error undefined arch __TARGET_BYTE_ORDER#endif #if __BYTE_ORDER != __TARGET_BYTE_ORDER#define __NEED_BSWAP 1#else#define __NEED_BSWAP 0#endif /* * Does a byte swap if target endianness doesn't match the host, i.e. cross * compilation for little endian on big endian and vice versa. * To be used for multi-byte values conversion, which are read from / about * to be written to a target native endianness ELF file. */#define bswap_if_needed(val)						\({									\	__typeof__(val) __ret;						\	switch (sizeof(val)) {						\	case 8: __ret = __NEED_BSWAP ? bswap_64(val) : (val); break;	\	case 4: __ret = __NEED_BSWAP ? bswap_32(val) : (val); break;	\	case 2: __ret = __NEED_BSWAP ? bswap_16(val) : (val); break;	\	default:							\		BUILD_BUG(); break;					\	}								\	__ret;								\}) #endif /* _OBJTOOL_ENDIANNESS_H */