This patch adds the crc32 command to be build as host and optionally as target tool. Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
136 lines
3.2 KiB
C
136 lines
3.2 KiB
C
/*
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* Keep all the ugly #ifdef for system stuff here
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*/
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#ifndef __COMPILER_H__
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#define __COMPILER_H__
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#include <stddef.h>
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#if defined(__BEOS__) || \
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defined(__NetBSD__) || \
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defined(__FreeBSD__) || \
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defined(__sun__) || \
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defined(__APPLE__)
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# include <inttypes.h>
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#elif defined(__linux__) || defined(__WIN32__) || defined(__MINGW32__)
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# include <stdint.h>
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#endif
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#include <errno.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#if !defined(__WIN32__) && !defined(__MINGW32__)
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#include <sys/mman.h>
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#include <netinet/in.h> /* for host / network byte order conversions */
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#endif
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/* Not all systems (like Windows) has this define, and yes
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* we do replace/emulate mmap() on those systems ...
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*/
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#ifndef MAP_FAILED
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# define MAP_FAILED ((void *)-1)
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#endif
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#include <fcntl.h>
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#ifndef O_BINARY /* should be define'd on __WIN32__ */
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#define O_BINARY 0
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#endif
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#ifdef __linux__
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# include <endian.h>
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# include <byteswap.h>
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#elif defined(__MACH__)
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# include <machine/endian.h>
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# define __BYTE_ORDER BYTE_ORDER
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# define __LITTLE_ENDIAN LITTLE_ENDIAN
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# define __BIG_ENDIAN BIG_ENDIAN
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typedef unsigned long ulong;
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typedef unsigned int uint;
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#endif
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typedef uint8_t __u8;
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typedef uint16_t __u16;
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typedef uint32_t __u32;
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#define uswap_16(x) \
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((((x) & 0xff00) >> 8) | \
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(((x) & 0x00ff) << 8))
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#define uswap_32(x) \
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((((x) & 0xff000000) >> 24) | \
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(((x) & 0x00ff0000) >> 8) | \
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(((x) & 0x0000ff00) << 8) | \
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(((x) & 0x000000ff) << 24))
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#define _uswap_64(x, sfx) \
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((((x) & 0xff00000000000000##sfx) >> 56) | \
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(((x) & 0x00ff000000000000##sfx) >> 40) | \
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(((x) & 0x0000ff0000000000##sfx) >> 24) | \
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(((x) & 0x000000ff00000000##sfx) >> 8) | \
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(((x) & 0x00000000ff000000##sfx) << 8) | \
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(((x) & 0x0000000000ff0000##sfx) << 24) | \
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(((x) & 0x000000000000ff00##sfx) << 40) | \
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(((x) & 0x00000000000000ff##sfx) << 56))
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#if defined(__GNUC__)
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# define uswap_64(x) _uswap_64(x, ull)
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#else
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# define uswap_64(x) _uswap_64(x, )
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#endif
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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# define cpu_to_le16(x) (x)
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# define cpu_to_le32(x) (x)
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# define cpu_to_le64(x) (x)
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# define le16_to_cpu(x) (x)
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# define le32_to_cpu(x) (x)
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# define le64_to_cpu(x) (x)
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# define cpu_to_be16(x) uswap_16(x)
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# define cpu_to_be32(x) uswap_32(x)
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# define cpu_to_be64(x) uswap_64(x)
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# define be16_to_cpu(x) uswap_16(x)
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# define be32_to_cpu(x) uswap_32(x)
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# define be64_to_cpu(x) uswap_64(x)
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#else
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# define cpu_to_le16(x) uswap_16(x)
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# define cpu_to_le32(x) uswap_32(x)
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# define cpu_to_le64(x) uswap_64(x)
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# define le16_to_cpu(x) uswap_16(x)
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# define le32_to_cpu(x) uswap_32(x)
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# define le64_to_cpu(x) uswap_64(x)
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# define cpu_to_be16(x) (x)
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# define cpu_to_be32(x) (x)
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# define cpu_to_be64(x) (x)
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# define be16_to_cpu(x) (x)
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# define be32_to_cpu(x) (x)
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# define be64_to_cpu(x) (x)
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#endif
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#define min(x, y) ({ \
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typeof(x) _min1 = (x); \
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typeof(y) _min2 = (y); \
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(void) (&_min1 == &_min2); \
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_min1 < _min2 ? _min1 : _min2; })
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inline void *xmalloc(size_t size)
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{
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void *p = NULL;
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if (!(p = malloc(size))) {
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printf("ERROR: out of memory\n");
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exit(1);
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}
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return p;
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}
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inline void *xzalloc(size_t size)
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{
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void *p = xmalloc(size);
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memset(p, 0, size);
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return p;
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}
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#endif
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