Changeset View
Changeset View
Standalone View
Standalone View
sys/sys/gsb_crc32.h
- This file was added.
Property | Old Value | New Value |
---|---|---|
svn:eol-style | null | native \ No newline at end of property |
svn:keywords | null | FreeBSD=%H \ No newline at end of property |
svn:mime-type | null | text/plain \ No newline at end of property |
/*- | |||||
* COPYRIGHT (C) 1986 Gary S. Brown. You may use this program, or | |||||
* code or tables extracted from it, as desired without restriction. | |||||
*/ | |||||
#ifndef _SYS_GSB_CRC32_H_ | |||||
#define _SYS_GSB_CRC32_H_ | |||||
#include <sys/types.h> | |||||
#ifdef _KERNEL | |||||
extern const uint32_t crc32_tab[]; | |||||
static __inline uint32_t | |||||
crc32_raw(const void *buf, size_t size, uint32_t crc) | |||||
{ | |||||
const uint8_t *p = (const uint8_t *)buf; | |||||
while (size--) | |||||
crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8); | |||||
return (crc); | |||||
} | |||||
static __inline uint32_t | |||||
crc32(const void *buf, size_t size) | |||||
{ | |||||
uint32_t crc; | |||||
crc = crc32_raw(buf, size, ~0U); | |||||
return (crc ^ ~0U); | |||||
} | |||||
uint32_t calculate_crc32c(uint32_t crc32c, const unsigned char *buffer, | |||||
unsigned int length); | |||||
#endif | |||||
#if defined(__amd64__) || defined(__i386__) | |||||
uint32_t sse42_crc32c(uint32_t, const unsigned char *, unsigned); | |||||
#endif | |||||
#if defined(__aarch64__) | |||||
uint32_t armv8_crc32c(uint32_t, const unsigned char *, unsigned int); | |||||
#endif | |||||
#endif /* !_SYS_GSB_CRC32_H_ */ |