更新日期: 2022/06/01 来源: https://gitee.com/weharmony/kernel_liteos_a_note
cc.h
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1/*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _LWIP_PORTING_CC_H_
33#define _LWIP_PORTING_CC_H_
34
35#ifdef LITTLE_ENDIAN
36#undef LITTLE_ENDIAN
37#endif
38
39#ifdef BIG_ENDIAN
40#undef BIG_ENDIAN
41#endif
42
43#include <endian.h>
44#include <stdio.h>
45#include <stdlib.h>
46
47#ifdef htons
48#define LWIP_DONT_PROVIDE_BYTEORDER_FUNCTIONS
49#endif
50
51#define SOCKLEN_T_DEFINED
52#define SA_FAMILY_T_DEFINED
53#define IN_PORT_T_DEFINED
54
55#define LWIP_TIMEVAL_PRIVATE 0
56#define LWIP_ERRNO_STDINCLUDE
57#define LWIP_SOCKET_STDINCLUDE
58
59/* Provide Thumb-2 routines for GCC to improve performance */
60#if defined(TOOLCHAIN_GCC) && defined(__thumb2__)
61#define LWIP_CHKSUM thumb2_checksum
62u16_t thumb2_checksum(void* pData, int length);
63#else
64#define LWIP_CHKSUM_ALGORITHM 4
65#endif
66
67#define LWIP_RAND rand
68#define LWIP_PLATFORM_DIAG(vars) dprintf vars
69#define LWIP_PLATFORM_ASSERT(x) do { \
70 LWIP_PLATFORM_DIAG(("Assertion \"%s\" failed at line %d in %s\n", x, __LINE__, __FILE__)); \
71 abort(); \
72 } while (0)
73
74#endif /* _LWIP_PORTING_CC_H_ */
thumb2_checksum
u16_t thumb2_checksum(void *pData, int length)