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