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10#ifndef XZ_PRIVATE_H
11#define XZ_PRIVATE_H
12
13#ifdef __KERNEL__
14# include <linux/xz.h>
15# include <linux/kernel.h>
16# include <asm/unaligned.h>
17
18# ifndef XZ_PREBOOT
19# include <linux/slab.h>
20# include <linux/vmalloc.h>
21# include <linux/string.h>
22# ifdef CONFIG_XZ_DEC_X86
23# define XZ_DEC_X86
24# endif
25# ifdef CONFIG_XZ_DEC_POWERPC
26# define XZ_DEC_POWERPC
27# endif
28# ifdef CONFIG_XZ_DEC_IA64
29# define XZ_DEC_IA64
30# endif
31# ifdef CONFIG_XZ_DEC_ARM
32# define XZ_DEC_ARM
33# endif
34# ifdef CONFIG_XZ_DEC_ARMTHUMB
35# define XZ_DEC_ARMTHUMB
36# endif
37# ifdef CONFIG_XZ_DEC_SPARC
38# define XZ_DEC_SPARC
39# endif
40# define memeq(a, b, size) (memcmp(a, b, size) == 0)
41# define memzero(buf, size) memset(buf, 0, size)
42# endif
43# define get_le32(p) le32_to_cpup((const uint32_t *)(p))
44#else
45
46
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49
50# include "xz_config.h"
51#endif
52
53
54#if !defined(XZ_DEC_SINGLE) && !defined(XZ_DEC_PREALLOC) \
55 && !defined(XZ_DEC_DYNALLOC)
56# define XZ_DEC_SINGLE
57# define XZ_DEC_PREALLOC
58# define XZ_DEC_DYNALLOC
59#endif
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65
66#ifdef XZ_DEC_SINGLE
67# define DEC_IS_SINGLE(mode) ((mode) == XZ_SINGLE)
68#else
69# define DEC_IS_SINGLE(mode) (false)
70#endif
71
72#ifdef XZ_DEC_PREALLOC
73# define DEC_IS_PREALLOC(mode) ((mode) == XZ_PREALLOC)
74#else
75# define DEC_IS_PREALLOC(mode) (false)
76#endif
77
78#ifdef XZ_DEC_DYNALLOC
79# define DEC_IS_DYNALLOC(mode) ((mode) == XZ_DYNALLOC)
80#else
81# define DEC_IS_DYNALLOC(mode) (false)
82#endif
83
84#if !defined(XZ_DEC_SINGLE)
85# define DEC_IS_MULTI(mode) (true)
86#elif defined(XZ_DEC_PREALLOC) || defined(XZ_DEC_DYNALLOC)
87# define DEC_IS_MULTI(mode) ((mode) != XZ_SINGLE)
88#else
89# define DEC_IS_MULTI(mode) (false)
90#endif
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95
96#ifndef XZ_DEC_BCJ
97# if defined(XZ_DEC_X86) || defined(XZ_DEC_POWERPC) \
98 || defined(XZ_DEC_IA64) || defined(XZ_DEC_ARM) \
99 || defined(XZ_DEC_ARM) || defined(XZ_DEC_ARMTHUMB) \
100 || defined(XZ_DEC_SPARC)
101# define XZ_DEC_BCJ
102# endif
103#endif
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109XZ_EXTERN struct xz_dec_lzma2 *xz_dec_lzma2_create(enum xz_mode mode,
110 uint32_t dict_max);
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118XZ_EXTERN enum xz_ret xz_dec_lzma2_reset(struct xz_dec_lzma2 *s,
119 uint8_t props);
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122XZ_EXTERN enum xz_ret xz_dec_lzma2_run(struct xz_dec_lzma2 *s,
123 struct xz_buf *b);
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126XZ_EXTERN void xz_dec_lzma2_end(struct xz_dec_lzma2 *s);
127
128#ifdef XZ_DEC_BCJ
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133XZ_EXTERN struct xz_dec_bcj *xz_dec_bcj_create(bool single_call);
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141XZ_EXTERN enum xz_ret xz_dec_bcj_reset(struct xz_dec_bcj *s, uint8_t id);
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148XZ_EXTERN enum xz_ret xz_dec_bcj_run(struct xz_dec_bcj *s,
149 struct xz_dec_lzma2 *lzma2,
150 struct xz_buf *b);
151
152
153#define xz_dec_bcj_end(s) kfree(s)
154#endif
155
156#endif
157