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AP_Common: provide minimal byteswap.h and endian.h

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This commit is contained in:
Lucas De Marchi 2016-07-08 11:06:02 -03:00
parent 8a27680fbb
commit 471de28967
2 changed files with 40 additions and 0 deletions
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24
libraries/AP_Common/missing/byteswap.h Normal file
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#if defined(HAVE_BYTESWAP_H) && HAVE_BYTESWAP_H
#include_next <byteswap.h>
#else
#include <inttypes.h>
/* minimal version defining only the macros we need in our codebase */
static inline uint16_t __bswap_16(uint16_t u)
{
return (uint16_t) __builtin_bswap16(u);
}
static inline uint32_t __bswap_32(uint32_t u)
{
return (uint32_t) __builtin_bswap32(u);
}
static inline uint64_t __bswap_64(uint64_t u)
{
return (uint64_t) __builtin_bswap64(u);
}
#endif

16
libraries/AP_Common/missing/endian.h Normal file
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#if defined(HAVE_ENDIAN_H) && HAVE_ENDIAN_H
#include_next <endian.h>
#else
/* minimal version defining only the macros we need in our codebase */
#define __LITTLE_ENDIAN 1234
#define __BIG_ENDIAN 4321
#ifdef __ARMEB__
#define __BYTE_ORDER __BIG_ENDIAN
#else
#define __BYTE_ORDER __LITTLE_ENDIAN
#endif
#endif