зеркало из https://github.com/Azure/azure-utpm-c.git
76 строки
3.0 KiB
C
76 строки
3.0 KiB
C
// Copyright (c) Microsoft. All rights reserved.
|
|
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
|
|
|
|
#ifndef _SWAP_H
|
|
#define _SWAP_H
|
|
|
|
#if LITTLE_ENDIAN_TPM == YES
|
|
#define TO_BIG_ENDIAN_UINT16(i) REVERSE_ENDIAN_16(i)
|
|
#define FROM_BIG_ENDIAN_UINT16(i) REVERSE_ENDIAN_16(i)
|
|
#define TO_BIG_ENDIAN_UINT32(i) REVERSE_ENDIAN_32(i)
|
|
#define FROM_BIG_ENDIAN_UINT32(i) REVERSE_ENDIAN_32(i)
|
|
#define TO_BIG_ENDIAN_UINT64(i) REVERSE_ENDIAN_64(i)
|
|
#define FROM_BIG_ENDIAN_UINT64(i) REVERSE_ENDIAN_64(i)
|
|
#else
|
|
#define TO_BIG_ENDIAN_UINT16(i) (i)
|
|
#define FROM_BIG_ENDIAN_UINT16(i) (i)
|
|
#define TO_BIG_ENDIAN_UINT32(i) (i)
|
|
#define FROM_BIG_ENDIAN_UINT32(i) (i)
|
|
#define TO_BIG_ENDIAN_UINT64(i) (i)
|
|
#define FROM_BIG_ENDIAN_UINT64(i) (i)
|
|
#endif
|
|
|
|
#if AUTO_ALIGN == NO
|
|
|
|
// The aggregation macros for machines that do not allow unaligned access or for
|
|
// little-endian machines.
|
|
|
|
// Aggregate bytes into an UINT
|
|
|
|
#define BYTE_ARRAY_TO_UINT8(b) (uint8_t)((b)[0])
|
|
#define BYTE_ARRAY_TO_UINT16(b) ByteArrayToUint16((BYTE *)(b))
|
|
#define BYTE_ARRAY_TO_UINT32(b) ByteArrayToUint32((BYTE *)(b))
|
|
#define BYTE_ARRAY_TO_UINT64(b) ByteArrayToUint64((BYTE *)(b))
|
|
#define UINT8_TO_BYTE_ARRAY(i, b) ((b)[0] = (uint8_t)(i))
|
|
#define UINT16_TO_BYTE_ARRAY(i, b) Uint16ToByteArray((i), (BYTE *)(b))
|
|
#define UINT32_TO_BYTE_ARRAY(i, b) Uint32ToByteArray((i), (BYTE *)(b))
|
|
#define UINT64_TO_BYTE_ARRAY(i, b) Uint64ToByteArray((i), (BYTE *)(b))
|
|
|
|
|
|
#else // AUTO_ALIGN
|
|
|
|
#if BIG_ENDIAN_TPM
|
|
// the big-endian macros for machines that allow unaligned memory access
|
|
// Aggregate a byte array into a UINT
|
|
#define BYTE_ARRAY_TO_UINT8(b) *((uint8_t *)(b))
|
|
#define BYTE_ARRAY_TO_UINT16(b) *((uint16_t *)(b))
|
|
#define BYTE_ARRAY_TO_UINT32(b) *((uint32_t *)(b))
|
|
#define BYTE_ARRAY_TO_UINT64(b) *((uint64_t *)(b))
|
|
|
|
// Disaggregate a UINT into a byte array
|
|
|
|
#define UINT8_TO_BYTE_ARRAY(i, b) {*((uint8_t *)(b)) = (i);}
|
|
#define UINT16_TO_BYTE_ARRAY(i, b) {*((uint16_t *)(b)) = (i);}
|
|
#define UINT32_TO_BYTE_ARRAY(i, b) {*((uint32_t *)(b)) = (i);}
|
|
#define UINT64_TO_BYTE_ARRAY(i, b) {*((uint64_t *)(b)) = (i);}
|
|
#else
|
|
// the little endian macros for machines that allow unaligned memory access
|
|
// the big-endian macros for machines that allow unaligned memory access
|
|
// Aggregate a byte array into a UINT
|
|
#define BYTE_ARRAY_TO_UINT8(b) *((uint8_t *)(b))
|
|
#define BYTE_ARRAY_TO_UINT16(b) REVERSE_ENDIAN_16(*((uint16_t *)(b)))
|
|
#define BYTE_ARRAY_TO_UINT32(b) REVERSE_ENDIAN_32(*((uint32_t *)(b)))
|
|
#define BYTE_ARRAY_TO_UINT64(b) REVERSE_ENDIAN_64(*((uint64_t *)(b)))
|
|
|
|
// Disaggregate a UINT into a byte array
|
|
|
|
#define UINT8_TO_BYTE_ARRAY(i, b) {*((uint8_t *)(b)) = (i);}
|
|
#define UINT16_TO_BYTE_ARRAY(i, b) {*((uint16_t *)(b)) = REVERSE_ENDIAN_16(i);}
|
|
#define UINT32_TO_BYTE_ARRAY(i, b) {*((uint32_t *)(b)) = REVERSE_ENDIAN_32(i);}
|
|
#define UINT64_TO_BYTE_ARRAY(i, b) {*((uint64_t *)(b)) = REVERSE_ENDIAN_64(i);}
|
|
#endif // BIG_ENDIAN_TPM
|
|
|
|
#endif // AUTO_ALIGN == NO
|
|
|
|
#endif // _SWAP_H
|