mirror of
https://github.com/esp8266/Arduino.git
synced 2025-10-30 04:26:50 +03:00
a1e59e9c01
* update to lwIP-2.1.0rc1: partial SACK support fix #4176 * hash fix * get some flash back due to mistake in conf (fragmentation & reassembly was incorrectly enabled) (ahah I scared you) * add missing include files * update to lwip-2.1.0(release) + remove unused lwIP's include files * lwIP release 2.1.0, SACK is now default, bigger, no-SACK is selectable * fix ldscript * pio * rename 'sack' option to 'feat'ure option, + IP fragmentation/reassembly * merge, fix pio * change internal/hidden string * pio: more lwip2 configuration: + without sack for no change in flash footprint
394 lines
14 KiB
C
394 lines
14 KiB
C
/**
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* @file
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* Support for different processor and compiler architectures
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*/
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/*
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* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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*/
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#ifndef LWIP_HDR_ARCH_H
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#define LWIP_HDR_ARCH_H
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#ifndef LITTLE_ENDIAN
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#define LITTLE_ENDIAN 1234
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#endif
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#ifndef BIG_ENDIAN
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#define BIG_ENDIAN 4321
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#endif
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#include "arch/cc.h"
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/**
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* @defgroup compiler_abstraction Compiler/platform abstraction
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* @ingroup sys_layer
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* All defines related to this section must not be placed in lwipopts.h,
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* but in arch/cc.h!
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* If the compiler does not provide memset() this file must include a
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* definition of it, or include a file which defines it.
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* These options cannot be \#defined in lwipopts.h since they are not options
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* of lwIP itself, but options of the lwIP port to your system.
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* @{
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*/
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/** Define the byte order of the system.
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* Needed for conversion of network data to host byte order.
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* Allowed values: LITTLE_ENDIAN and BIG_ENDIAN
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*/
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#ifndef BYTE_ORDER
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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/** Define random number generator function of your system */
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#ifdef __DOXYGEN__
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#define LWIP_RAND() ((u32_t)rand())
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#endif
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/** Platform specific diagnostic output.\n
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* Note the default implementation pulls in printf, which may
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* in turn pull in a lot of standard libary code. In resource-constrained
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* systems, this should be defined to something less resource-consuming.
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*/
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#ifndef LWIP_PLATFORM_DIAG
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#define LWIP_PLATFORM_DIAG(x) do {printf x;} while(0)
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#include <stdio.h>
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#include <stdlib.h>
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#endif
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/** Platform specific assertion handling.\n
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* Note the default implementation pulls in printf, fflush and abort, which may
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* in turn pull in a lot of standard libary code. In resource-constrained
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* systems, this should be defined to something less resource-consuming.
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*/
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#ifndef LWIP_PLATFORM_ASSERT
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#define LWIP_PLATFORM_ASSERT(x) do {printf("Assertion \"%s\" failed at line %d in %s\n", \
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x, __LINE__, __FILE__); fflush(NULL); abort();} while(0)
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#include <stdio.h>
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#include <stdlib.h>
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#endif
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/** Define this to 1 in arch/cc.h of your port if you do not want to
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* include stddef.h header to get size_t. You need to typedef size_t
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* by yourself in this case.
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*/
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#ifndef LWIP_NO_STDDEF_H
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#define LWIP_NO_STDDEF_H 0
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#endif
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#if !LWIP_NO_STDDEF_H
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#include <stddef.h> /* for size_t */
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#endif
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/** Define this to 1 in arch/cc.h of your port if your compiler does not provide
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* the stdint.h header. You need to typedef the generic types listed in
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* lwip/arch.h yourself in this case (u8_t, u16_t...).
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*/
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#ifndef LWIP_NO_STDINT_H
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#define LWIP_NO_STDINT_H 0
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#endif
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/* Define generic types used in lwIP */
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#if !LWIP_NO_STDINT_H
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#include <stdint.h>
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/* stdint.h is C99 which should also provide support for 64-bit integers */
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#if !defined(LWIP_HAVE_INT64) && defined(UINT64_MAX)
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#define LWIP_HAVE_INT64 1
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#endif
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typedef uint8_t u8_t;
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typedef int8_t s8_t;
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typedef uint16_t u16_t;
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typedef int16_t s16_t;
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typedef uint32_t u32_t;
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typedef int32_t s32_t;
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#if LWIP_HAVE_INT64
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typedef uint64_t u64_t;
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typedef int64_t s64_t;
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#endif
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typedef uintptr_t mem_ptr_t;
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#endif
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/** Define this to 1 in arch/cc.h of your port if your compiler does not provide
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* the inttypes.h header. You need to define the format strings listed in
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* lwip/arch.h yourself in this case (X8_F, U16_F...).
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*/
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#ifndef LWIP_NO_INTTYPES_H
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#define LWIP_NO_INTTYPES_H 0
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#endif
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/* Define (sn)printf formatters for these lwIP types */
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#if !LWIP_NO_INTTYPES_H
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#include <inttypes.h>
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#ifndef X8_F
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#define X8_F "02" PRIx8
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#endif
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#ifndef U16_F
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#define U16_F PRIu16
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#endif
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#ifndef S16_F
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#define S16_F PRId16
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#endif
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#ifndef X16_F
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#define X16_F PRIx16
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#endif
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#ifndef U32_F
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#define U32_F PRIu32
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#endif
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#ifndef S32_F
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#define S32_F PRId32
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#endif
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#ifndef X32_F
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#define X32_F PRIx32
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#endif
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#ifndef SZT_F
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#define SZT_F PRIuPTR
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#endif
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#endif
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/** Define this to 1 in arch/cc.h of your port if your compiler does not provide
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* the limits.h header. You need to define the type limits yourself in this case
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* (e.g. INT_MAX, SSIZE_MAX).
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*/
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#ifndef LWIP_NO_LIMITS_H
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#define LWIP_NO_LIMITS_H 0
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#endif
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/* Include limits.h? */
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#if !LWIP_NO_LIMITS_H
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#include <limits.h>
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#endif
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/* Do we need to define ssize_t? This is a compatibility hack:
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* Unfortunately, this type seems to be unavailable on some systems (even if
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* sys/types or unistd.h are available).
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* Being like that, we define it to 'int' if SSIZE_MAX is not defined.
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*/
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#ifdef SSIZE_MAX
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/* If SSIZE_MAX is defined, unistd.h should provide the type as well */
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#ifndef LWIP_NO_UNISTD_H
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#define LWIP_NO_UNISTD_H 0
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#endif
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#if !LWIP_NO_UNISTD_H
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#include <unistd.h>
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#endif
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#else /* SSIZE_MAX */
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typedef int ssize_t;
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#define SSIZE_MAX INT_MAX
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#endif /* SSIZE_MAX */
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/* some maximum values needed in lwip code */
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#define LWIP_UINT32_MAX 0xffffffff
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/** Define this to 1 in arch/cc.h of your port if your compiler does not provide
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* the ctype.h header. If ctype.h is available, a few character functions
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* are mapped to the appropriate functions (lwip_islower, lwip_isdigit...), if
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* not, a private implementation is provided.
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*/
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#ifndef LWIP_NO_CTYPE_H
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#define LWIP_NO_CTYPE_H 0
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#endif
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#if LWIP_NO_CTYPE_H
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#define lwip_in_range(c, lo, up) ((u8_t)(c) >= (lo) && (u8_t)(c) <= (up))
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#define lwip_isdigit(c) lwip_in_range((c), '0', '9')
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#define lwip_isxdigit(c) (lwip_isdigit(c) || lwip_in_range((c), 'a', 'f') || lwip_in_range((c), 'A', 'F'))
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#define lwip_islower(c) lwip_in_range((c), 'a', 'z')
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#define lwip_isspace(c) ((c) == ' ' || (c) == '\f' || (c) == '\n' || (c) == '\r' || (c) == '\t' || (c) == '\v')
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#define lwip_isupper(c) lwip_in_range((c), 'A', 'Z')
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#define lwip_tolower(c) (lwip_isupper(c) ? (c) - 'A' + 'a' : c)
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#define lwip_toupper(c) (lwip_islower(c) ? (c) - 'a' + 'A' : c)
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#else
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#include <ctype.h>
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#define lwip_isdigit(c) isdigit((unsigned char)(c))
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#define lwip_isxdigit(c) isxdigit((unsigned char)(c))
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#define lwip_islower(c) islower((unsigned char)(c))
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#define lwip_isspace(c) isspace((unsigned char)(c))
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#define lwip_isupper(c) isupper((unsigned char)(c))
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#define lwip_tolower(c) tolower((unsigned char)(c))
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#define lwip_toupper(c) toupper((unsigned char)(c))
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#endif
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/** C++ const_cast<target_type>(val) equivalent to remove constness from a value (GCC -Wcast-qual) */
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#ifndef LWIP_CONST_CAST
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#define LWIP_CONST_CAST(target_type, val) ((target_type)((ptrdiff_t)val))
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#endif
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/** Get rid of alignment cast warnings (GCC -Wcast-align) */
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#ifndef LWIP_ALIGNMENT_CAST
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#define LWIP_ALIGNMENT_CAST(target_type, val) LWIP_CONST_CAST(target_type, val)
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#endif
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/** Get rid of warnings related to pointer-to-numeric and vice-versa casts,
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* e.g. "conversion from 'u8_t' to 'void *' of greater size"
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*/
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#ifndef LWIP_PTR_NUMERIC_CAST
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#define LWIP_PTR_NUMERIC_CAST(target_type, val) LWIP_CONST_CAST(target_type, val)
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#endif
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/** Avoid warnings/errors related to implicitly casting away packed attributes by doing a explicit cast */
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#ifndef LWIP_PACKED_CAST
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#define LWIP_PACKED_CAST(target_type, val) LWIP_CONST_CAST(target_type, val)
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#endif
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/** Allocates a memory buffer of specified size that is of sufficient size to align
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* its start address using LWIP_MEM_ALIGN.
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* You can declare your own version here e.g. to enforce alignment without adding
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* trailing padding bytes (see LWIP_MEM_ALIGN_BUFFER) or your own section placement
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* requirements.\n
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* e.g. if you use gcc and need 32 bit alignment:\n
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* \#define LWIP_DECLARE_MEMORY_ALIGNED(variable_name, size) u8_t variable_name[size] \_\_attribute\_\_((aligned(4)))\n
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* or more portable:\n
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* \#define LWIP_DECLARE_MEMORY_ALIGNED(variable_name, size) u32_t variable_name[(size + sizeof(u32_t) - 1) / sizeof(u32_t)]
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*/
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#ifndef LWIP_DECLARE_MEMORY_ALIGNED
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#define LWIP_DECLARE_MEMORY_ALIGNED(variable_name, size) u8_t variable_name[LWIP_MEM_ALIGN_BUFFER(size)]
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#endif
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/** Calculate memory size for an aligned buffer - returns the next highest
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* multiple of MEM_ALIGNMENT (e.g. LWIP_MEM_ALIGN_SIZE(3) and
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* LWIP_MEM_ALIGN_SIZE(4) will both yield 4 for MEM_ALIGNMENT == 4).
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*/
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#ifndef LWIP_MEM_ALIGN_SIZE
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#define LWIP_MEM_ALIGN_SIZE(size) (((size) + MEM_ALIGNMENT - 1U) & ~(MEM_ALIGNMENT-1U))
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#endif
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/** Calculate safe memory size for an aligned buffer when using an unaligned
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* type as storage. This includes a safety-margin on (MEM_ALIGNMENT - 1) at the
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* start (e.g. if buffer is u8_t[] and actual data will be u32_t*)
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*/
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#ifndef LWIP_MEM_ALIGN_BUFFER
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#define LWIP_MEM_ALIGN_BUFFER(size) (((size) + MEM_ALIGNMENT - 1U))
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#endif
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/** Align a memory pointer to the alignment defined by MEM_ALIGNMENT
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* so that ADDR % MEM_ALIGNMENT == 0
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*/
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#ifndef LWIP_MEM_ALIGN
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#define LWIP_MEM_ALIGN(addr) ((void *)(((mem_ptr_t)(addr) + MEM_ALIGNMENT - 1) & ~(mem_ptr_t)(MEM_ALIGNMENT-1)))
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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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/** Packed structs support.
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* Placed BEFORE declaration of a packed struct.\n
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* For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n
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* A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here.
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*/
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#ifndef PACK_STRUCT_BEGIN
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#define PACK_STRUCT_BEGIN
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#endif /* PACK_STRUCT_BEGIN */
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/** Packed structs support.
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* Placed AFTER declaration of a packed struct.\n
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* For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n
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* A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here.
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*/
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#ifndef PACK_STRUCT_END
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#define PACK_STRUCT_END
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#endif /* PACK_STRUCT_END */
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/** Packed structs support.
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* Placed between end of declaration of a packed struct and trailing semicolon.\n
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* For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n
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* A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here.
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*/
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#ifndef PACK_STRUCT_STRUCT
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#if defined(__GNUC__) || defined(__clang__)
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#define PACK_STRUCT_STRUCT __attribute__((packed))
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#else
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#define PACK_STRUCT_STRUCT
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#endif
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#endif /* PACK_STRUCT_STRUCT */
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/** Packed structs support.
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* Wraps u32_t and u16_t members.\n
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* For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n
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* A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here.
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*/
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#ifndef PACK_STRUCT_FIELD
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#define PACK_STRUCT_FIELD(x) x
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#endif /* PACK_STRUCT_FIELD */
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/** Packed structs support.
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* Wraps u8_t members, where some compilers warn that packing is not necessary.\n
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* For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n
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* A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here.
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*/
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#ifndef PACK_STRUCT_FLD_8
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#define PACK_STRUCT_FLD_8(x) PACK_STRUCT_FIELD(x)
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#endif /* PACK_STRUCT_FLD_8 */
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/** Packed structs support.
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* Wraps members that are packed structs themselves, where some compilers warn that packing is not necessary.\n
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* For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n
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* A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here.
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*/
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#ifndef PACK_STRUCT_FLD_S
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#define PACK_STRUCT_FLD_S(x) PACK_STRUCT_FIELD(x)
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#endif /* PACK_STRUCT_FLD_S */
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/** PACK_STRUCT_USE_INCLUDES==1: Packed structs support using \#include files before and after struct to be packed.\n
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* The file included BEFORE the struct is "arch/bpstruct.h".\n
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* The file included AFTER the struct is "arch/epstruct.h".\n
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* This can be used to implement struct packing on MS Visual C compilers, see
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* the Win32 port in the lwIP contrib repository for reference.
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* For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n
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* A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here.
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*/
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#ifdef __DOXYGEN__
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#define PACK_STRUCT_USE_INCLUDES
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#endif
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/** Eliminates compiler warning about unused arguments (GCC -Wextra -Wunused). */
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#ifndef LWIP_UNUSED_ARG
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#define LWIP_UNUSED_ARG(x) (void)x
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#endif /* LWIP_UNUSED_ARG */
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/** LWIP_PROVIDE_ERRNO==1: Let lwIP provide ERRNO values and the 'errno' variable.
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* If this is disabled, cc.h must either define 'errno', include <errno.h>,
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* define LWIP_ERRNO_STDINCLUDE to get <errno.h> included or
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* define LWIP_ERRNO_INCLUDE to <errno.h> or equivalent.
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*/
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#if defined __DOXYGEN__
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#define LWIP_PROVIDE_ERRNO
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#endif
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/**
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* @}
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* LWIP_HDR_ARCH_H */
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