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28827163c5
Move endian routines to builtin/ so that portable third_party code may build without glibc. BRANCH=none BUG=chrome-os-partner:43025,chrome-os-partner:47524 TEST=none Change-Id: Icb900d1e9c56dc68ec1ef4b536ebc9dcf6ebcd69 Signed-off-by: nagendra modadugu <ngm@google.com> Reviewed-on: https://chromium-review.googlesource.com/340432 Commit-Ready: Nagendra Modadugu <ngm@google.com> Tested-by: Nagendra Modadugu <ngm@google.com> Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
39 lines
911 B
C
39 lines
911 B
C
/* Copyright 2016 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef __EC_BUILTIN_ENDIAN_H
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#define __EC_BUILTIN_ENDIAN_H
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#include <stdint.h>
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/*
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* Functions to convert byte order in various sized big endian integers to
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* host byte order. Note that the code currently does not require functions
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* for converting little endian integers.
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*/
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#if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
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static inline uint16_t be16toh(uint16_t in)
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{
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return __builtin_bswap16(in);
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}
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static inline uint32_t be32toh(uint32_t in)
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{
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return __builtin_bswap32(in);
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}
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static inline uint64_t be64toh(uint64_t in)
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{
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return __builtin_bswap64(in);
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}
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#define htobe16 be16toh
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#define htobe32 be32toh
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#define htobe64 be64toh
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#endif /* __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ */
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#endif /* __EC_BUILTIN_ENDIAN_H */
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