mirror of https://github.com/F-Stack/f-stack.git
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2015 RehiveTech. All rights reserved.
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*/
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#ifndef _RTE_BYTEORDER_ARM_H_
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#define _RTE_BYTEORDER_ARM_H_
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#ifndef RTE_FORCE_INTRINSICS
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# error Platform must be built with RTE_FORCE_INTRINSICS
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#include <rte_common.h>
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#include "generic/rte_byteorder.h"
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/* fix missing __builtin_bswap16 for gcc older then 4.8 */
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#if !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))
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static inline uint16_t rte_arch_bswap16(uint16_t _x)
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{
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uint16_t x = _x;
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asm volatile ("rev16 %w0,%w1"
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: "=r" (x)
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: "r" (x)
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);
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return x;
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}
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#define rte_bswap16(x) ((uint16_t)(__builtin_constant_p(x) ? \
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rte_constant_bswap16(x) : \
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rte_arch_bswap16(x)))
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#endif
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/* ARM architecture is bi-endian (both big and little). */
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#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
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#define rte_cpu_to_le_16(x) (x)
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#define rte_cpu_to_le_32(x) (x)
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#define rte_cpu_to_le_64(x) (x)
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#define rte_cpu_to_be_16(x) rte_bswap16(x)
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#define rte_cpu_to_be_32(x) rte_bswap32(x)
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#define rte_cpu_to_be_64(x) rte_bswap64(x)
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#define rte_le_to_cpu_16(x) (x)
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#define rte_le_to_cpu_32(x) (x)
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#define rte_le_to_cpu_64(x) (x)
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#define rte_be_to_cpu_16(x) rte_bswap16(x)
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#define rte_be_to_cpu_32(x) rte_bswap32(x)
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#define rte_be_to_cpu_64(x) rte_bswap64(x)
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#else /* RTE_BIG_ENDIAN */
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#define rte_cpu_to_le_16(x) rte_bswap16(x)
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#define rte_cpu_to_le_32(x) rte_bswap32(x)
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#define rte_cpu_to_le_64(x) rte_bswap64(x)
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#define rte_cpu_to_be_16(x) (x)
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#define rte_cpu_to_be_32(x) (x)
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#define rte_cpu_to_be_64(x) (x)
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#define rte_le_to_cpu_16(x) rte_bswap16(x)
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#define rte_le_to_cpu_32(x) rte_bswap32(x)
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#define rte_le_to_cpu_64(x) rte_bswap64(x)
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#define rte_be_to_cpu_16(x) (x)
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#define rte_be_to_cpu_32(x) (x)
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#define rte_be_to_cpu_64(x) (x)
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _RTE_BYTEORDER_ARM_H_ */
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