diff options
| author | Manuel Bentele | 2020-10-23 15:18:01 +0200 |
|---|---|---|
| committer | Manuel Bentele | 2020-10-23 15:18:01 +0200 |
| commit | dbb41ce2b7f309d394054a6bd1e33afd578798a5 (patch) | |
| tree | 6a31092063d9f2fb5ac5720ec6759040e793c3d5 /utils/include/bitops.h | |
| parent | Set Linux kernel version to unknown if it is not detectable (diff) | |
| download | xloop-dbb41ce2b7f309d394054a6bd1e33afd578798a5.tar.gz xloop-dbb41ce2b7f309d394054a6bd1e33afd578798a5.tar.xz xloop-dbb41ce2b7f309d394054a6bd1e33afd578798a5.zip | |
Move the source code of all xloop components to the common 'src' directory
Diffstat (limited to 'utils/include/bitops.h')
| -rw-r--r-- | utils/include/bitops.h | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/utils/include/bitops.h b/utils/include/bitops.h deleted file mode 100644 index 287d4af..0000000 --- a/utils/include/bitops.h +++ /dev/null @@ -1,150 +0,0 @@ -/* - * No copyright is claimed. This code is in the public domain; do with - * it what you wish. - * - * Written by Karel Zak <kzak@redhat.com> - */ -#ifndef BITOPS_H -#define BITOPS_H - -#include <stdint.h> -#include <sys/param.h> - -#if defined(HAVE_BYTESWAP_H) -# include <byteswap.h> -#endif - -#if defined(HAVE_ENDIAN_H) -# include <endian.h> -#elif defined(HAVE_SYS_ENDIAN_H) /* BSDs have them here */ -# include <sys/endian.h> -#endif - -#if defined(__OpenBSD__) -# include <sys/types.h> -# define be16toh(x) betoh16(x) -# define be32toh(x) betoh32(x) -# define be64toh(x) betoh64(x) -#elif defined(__NetBSD__) || defined(__FreeBSD__) || defined(__DragonFly__) -# define bswap_16(x) bswap16(x) -# define bswap_32(x) bswap32(x) -# define bswap_64(x) bswap64(x) -#elif defined(__APPLE__) -# include <libkern/OSByteOrder.h> -# define htobe16(x) OSSwapHostToBigInt16(x) -# define htole16(x) OSSwapHostToLittleInt16(x) -# define be16toh(x) OSSwapBigToHostInt16(x) -# define le16toh(x) OSSwapLittleToHostInt16(x) -# define htobe32(x) OSSwapHostToBigInt32(x) -# define htole32(x) OSSwapHostToLittleInt32(x) -# define be32toh(x) OSSwapBigToHostInt32(x) -# define le32toh(x) OSSwapLittleToHostInt32(x) -# define htobe64(x) OSSwapHostToBigInt64(x) -# define htole64(x) OSSwapHostToLittleInt64(x) -# define be64toh(x) OSSwapBigToHostInt64(x) -# define le64toh(x) OSSwapLittleToHostInt64(x) -# define bswap_16(x) OSSwapInt16(x) -# define bswap_32(x) OSSwapInt32(x) -# define bswap_64(x) OSSwapInt64(x) -#endif - -/* - * Fallbacks - * casts are necessary for constants, because we never know how for sure - * how U/UL/ULL map to __u16, __u32, __u64. At least not in a portable way. - */ -#ifndef bswap_16 -# define bswap_16(x) ((uint16_t)( \ - (((uint16_t)(x) & 0x00FF) << 8) | \ - (((uint16_t)(x) & 0xFF00) >> 8))) -#endif - -#ifndef bswap_32 -# define bswap_32(x) ((uint32_t)( \ - (((uint32_t)(x) & 0x000000FF) << 24) | \ - (((uint32_t)(x) & 0x0000FF00) << 8) | \ - (((uint32_t)(x) & 0x00FF0000) >> 8) | \ - (((uint32_t)(x) & 0xFF000000) >> 24))) -#endif - -#ifndef bswap_64 -# define bswap_64(x) ((uint64_t)( \ - (((uint64_t)(x) & 0x00000000000000FFULL) << 56) | \ - (((uint64_t)(x) & 0x000000000000FF00ULL) << 40) | \ - (((uint64_t)(x) & 0x0000000000FF0000ULL) << 24) | \ - (((uint64_t)(x) & 0x00000000FF000000ULL) << 8) | \ - (((uint64_t)(x) & 0x000000FF00000000ULL) >> 8) | \ - (((uint64_t)(x) & 0x0000FF0000000000ULL) >> 24) | \ - (((uint64_t)(x) & 0x00FF000000000000ULL) >> 40) | \ - (((uint64_t)(x) & 0xFF00000000000000ULL) >> 56))) -#endif - -#ifndef htobe16 -# if !defined(WORDS_BIGENDIAN) -# define htobe16(x) bswap_16 (x) -# define htole16(x) (x) -# define be16toh(x) bswap_16 (x) -# define le16toh(x) (x) -# define htobe32(x) bswap_32 (x) -# define htole32(x) (x) -# define be32toh(x) bswap_32 (x) -# define le32toh(x) (x) -# define htobe64(x) bswap_64 (x) -# define htole64(x) (x) -# define be64toh(x) bswap_64 (x) -# define le64toh(x) (x) -# else -# define htobe16(x) (x) -# define htole16(x) bswap_16 (x) -# define be16toh(x) (x) -# define le16toh(x) bswap_16 (x) -# define htobe32(x) (x) -# define htole32(x) bswap_32 (x) -# define be32toh(x) (x) -# define le32toh(x) bswap_32 (x) -# define htobe64(x) (x) -# define htole64(x) bswap_64 (x) -# define be64toh(x) (x) -# define le64toh(x) bswap_64 (x) -# endif -#endif - -/* - * Byte swab macros (based on linux/byteorder/swab.h) - */ -#define swab16(x) bswap_16(x) -#define swab32(x) bswap_32(x) -#define swab64(x) bswap_64(x) - -#define cpu_to_le16(x) ((uint16_t) htole16(x)) -#define cpu_to_le32(x) ((uint32_t) htole32(x)) -#define cpu_to_le64(x) ((uint64_t) htole64(x)) - -#define cpu_to_be16(x) ((uint16_t) htobe16(x)) -#define cpu_to_be32(x) ((uint32_t) htobe32(x)) -#define cpu_to_be64(x) ((uint64_t) htobe64(x)) - -#define le16_to_cpu(x) ((uint16_t) le16toh(x)) -#define le32_to_cpu(x) ((uint32_t) le32toh(x)) -#define le64_to_cpu(x) ((uint64_t) le64toh(x)) - -#define be16_to_cpu(x) ((uint16_t) be16toh(x)) -#define be32_to_cpu(x) ((uint32_t) be32toh(x)) -#define be64_to_cpu(x) ((uint64_t) be64toh(x)) - -/* - * Bit map related macros. Usually provided by libc. - */ -#ifndef NBBY -# define NBBY CHAR_BIT -#endif - -#ifndef setbit -# define setbit(a,i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY)) -# define clrbit(a,i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY))) -# define isset(a,i) ((a)[(i)/NBBY] & (1<<((i)%NBBY))) -# define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0) -#endif - -#endif /* BITOPS_H */ - |
