diff options
| author | nagendra modadugu <ngm@google.com> | 2016-04-22 14:35:07 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2016-04-22 20:40:03 -0700 |
| commit | 28827163c57390278a54ee10153c064cd6c18133 (patch) | |
| tree | 9fd5a8c0ebce27fa47914e394074f8ba76e598ab /builtin | |
| parent | e54d1284ffbd1d7c3b1f77a2a696ce275c527de4 (diff) | |
| download | chrome-ec-28827163c57390278a54ee10153c064cd6c18133.tar.gz | |
Move include/byteorder.h -> builtin/endian.h
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>
Diffstat (limited to 'builtin')
| -rw-r--r-- | builtin/endian.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/builtin/endian.h b/builtin/endian.h new file mode 100644 index 0000000000..b27b7cd496 --- /dev/null +++ b/builtin/endian.h @@ -0,0 +1,38 @@ +/* Copyright 2016 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#ifndef __EC_BUILTIN_ENDIAN_H +#define __EC_BUILTIN_ENDIAN_H + +#include <stdint.h> + +/* + * Functions to convert byte order in various sized big endian integers to + * host byte order. Note that the code currently does not require functions + * for converting little endian integers. + */ +#if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) + +static inline uint16_t be16toh(uint16_t in) +{ + return __builtin_bswap16(in); +} +static inline uint32_t be32toh(uint32_t in) +{ + return __builtin_bswap32(in); +} +static inline uint64_t be64toh(uint64_t in) +{ + return __builtin_bswap64(in); +} + +#define htobe16 be16toh +#define htobe32 be32toh +#define htobe64 be64toh + +#endif /* __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ */ + + +#endif /* __EC_BUILTIN_ENDIAN_H */ |