cc.h

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#ifndef __CC_H__
#define __CC_H__
 
#include <errno.h>
#include <stddef.h>
/* Upstream lwIP's sockets.h references struct timeval without including
   sys/time.h when LWIP_TIMEVAL_PRIVATE=0. Pull it in via this port header
   so every lwIP translation unit (and every consumer that #includes
   arch/cc.h transitively through lwip/opt.h) sees struct timeval. */
#include <sys/time.h>
 
#define BYTE_ORDER LITTLE_ENDIAN
 
typedef unsigned char       u8_t;
typedef signed char     s8_t;
typedef unsigned short int  u16_t;
typedef signed short        s16_t;
typedef unsigned int        u32_t;
typedef signed int      s32_t;
 
typedef u32_t           mem_ptr_t;
 
/* Define (sn)printf formatters for these lwIP types */
#define U8_F "hu"
#define S8_F "hd"
#define X8_F "hx"
#define U16_F "hu"
#define S16_F "hd"
#define X16_F "hx"
#define U32_F "lu"
#define S32_F "ld"
#define X32_F "lx"
#define SZT_F "uz"
 
#define PACK_STRUCT_FIELD(x) x __attribute((packed))
#define PACK_STRUCT_STRUCT __attribute((packed))
/* Used for struct fields of u8_t,
 * where some compilers warn that packing is not necessary */
#define PACK_STRUCT_FLD_8(x) x
/* Used for struct fields of that are packed structs themself,
 * where some compilers warn that packing is not necessary */
#define PACK_STRUCT_FLD_S(x) x
#define PACK_STRUCT_BEGIN
#define PACK_STRUCT_END
 
#ifdef DEBUG
#include <stdio.h>
#define LWIP_PLATFORM_DIAG(args) printf args
#define LWIP_PLATFORM_ASSERT(args) printf args
#else
#define LWIP_PLATFORM_DIAG(args)
#define LWIP_PLATFORM_ASSERT(args)
#endif
 
#define atoi(x) strtol(x, NULL, 10)
 
#define LWIP_NO_STDINT_H    1   //stdint.h does not exist.
#define LWIP_NO_INTTYPES_H  1   //inttypes.h does not exist.
 
#define lwip_htons(x) PP_HTONS(x)
#define lwip_htonl(x) PP_HTONL(x)
 
#endif /* __CC_H__ */