busybox

/*

 * Private includes and definitions

 *

 * Author: Lasse Collin <lasse.collin@tukaani.org>

 *

 * This file has been put into the public domain.

 * You can do whatever you want with this file.

 */

​

#ifndef XZ_PRIVATE_H

#define XZ_PRIVATE_H

​

#ifdef __KERNEL__

    /* XZ_PREBOOT may be defined only via decompress_unxz.c. */

#   ifndef XZ_PREBOOT

#       include <linux/slab.h>

#       include <linux/vmalloc.h>

#       include <linux/string.h>

#       define memeq(a, b, size) (memcmp(a, b, size) == 0)

#       define memzero(buf, size) memset(buf, 0, size)

#   endif

#   include <asm/byteorder.h>

#   include <asm/unaligned.h>

#   define get_le32(p) le32_to_cpup((const uint32_t *)(p))

    /* XZ_IGNORE_KCONFIG may be defined only via decompress_unxz.c. */

#   ifndef XZ_IGNORE_KCONFIG

#       ifdef CONFIG_XZ_DEC_X86

#           define XZ_DEC_X86

#       endif

#       ifdef CONFIG_XZ_DEC_POWERPC

#           define XZ_DEC_POWERPC

#       endif

#       ifdef CONFIG_XZ_DEC_IA64

#           define XZ_DEC_IA64

#       endif

#       ifdef CONFIG_XZ_DEC_ARM

#           define XZ_DEC_ARM

#       endif

#       ifdef CONFIG_XZ_DEC_ARMTHUMB

#           define XZ_DEC_ARMTHUMB

#       endif

#       ifdef CONFIG_XZ_DEC_SPARC

#           define XZ_DEC_SPARC

#       endif

#   endif

#   include <linux/xz.h>

#else

    /*

     * For userspace builds, use a separate header to define the required

     * macros and functions. This makes it easier to adapt the code into

     * different environments and avoids clutter in the Linux kernel tree.

     */

#   include "xz_config.h"

#endif

​

/* If no specific decoding mode is requested, enable support for all modes. */

#if !defined(XZ_DEC_SINGLE) && !defined(XZ_DEC_PREALLOC) \

        && !defined(XZ_DEC_DYNALLOC)

#   define XZ_DEC_SINGLE

#   define XZ_DEC_PREALLOC

#   define XZ_DEC_DYNALLOC

#endif

​