mirror of https://gitee.com/openkylin/linux.git
61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __XZ_CONFIG_H__
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#define __XZ_CONFIG_H__
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/*
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* most of this is copied from lib/xz/xz_private.h, we can't use their defines
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* since the boot wrapper is not built in the same environment as the rest of
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* the kernel.
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*/
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#include "types.h"
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#include "swab.h"
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static inline uint32_t swab32p(void *p)
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{
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uint32_t *q = p;
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return swab32(*q);
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}
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#ifdef __LITTLE_ENDIAN__
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#define get_le32(p) (*((uint32_t *) (p)))
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#define cpu_to_be32(x) swab32(x)
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static inline u32 be32_to_cpup(const u32 *p)
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{
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return swab32p((u32 *)p);
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}
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#else
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#define get_le32(p) swab32p(p)
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#define cpu_to_be32(x) (x)
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static inline u32 be32_to_cpup(const u32 *p)
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{
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return *p;
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}
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#endif
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static inline uint32_t get_unaligned_be32(const void *p)
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{
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return be32_to_cpup(p);
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}
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static inline void put_unaligned_be32(u32 val, void *p)
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{
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*((u32 *)p) = cpu_to_be32(val);
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}
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#define memeq(a, b, size) (memcmp(a, b, size) == 0)
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#define memzero(buf, size) memset(buf, 0, size)
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/* prevent the inclusion of the xz-preboot MM headers */
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#define DECOMPR_MM_H
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#define memmove memmove
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#define XZ_EXTERN static
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/* xz.h needs to be included directly since we need enum xz_mode */
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#include "../../../include/linux/xz.h"
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#undef XZ_EXTERN
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#endif
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