1// SPDX-License-Identifier: GPL-2.0
2#define _LINUX_STRING_H_
3
4#include <linux/compiler.h>	/* for inline */
5#include <linux/types.h>	/* for size_t */
6#include <linux/stddef.h>	/* for NULL */
7#include <linux/linkage.h>
8#include <asm/string.h>
9#include "misc.h"
10
11#define STATIC static
12#define STATIC_RW_DATA	/* non-static please */
13
14/* Diagnostic functions */
15#ifdef DEBUG
16#  define Assert(cond,msg) {if(!(cond)) error(msg);}
17#  define Trace(x) fprintf x
18#  define Tracev(x) {if (verbose) fprintf x ;}
19#  define Tracevv(x) {if (verbose>1) fprintf x ;}
20#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
21#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
22#else
23#  define Assert(cond,msg)
24#  define Trace(x)
25#  define Tracev(x)
26#  define Tracevv(x)
27#  define Tracec(c,x)
28#  define Tracecv(c,x)
29#endif
30
31/* Not needed, but used in some headers pulled in by decompressors */
32extern char * strstr(const char * s1, const char *s2);
33extern size_t strlen(const char *s);
34extern int memcmp(const void *cs, const void *ct, size_t count);
35extern char * strchrnul(const char *, int);
36
37#ifdef CONFIG_KERNEL_GZIP
38#include "../../../../lib/decompress_inflate.c"
39#endif
40
41#ifdef CONFIG_KERNEL_LZO
42#include "../../../../lib/decompress_unlzo.c"
43#endif
44
45#ifdef CONFIG_KERNEL_LZMA
46#include "../../../../lib/decompress_unlzma.c"
47#endif
48
49#ifdef CONFIG_KERNEL_XZ
50/* Prevent KASAN override of string helpers in decompressor */
51#undef memmove
52#define memmove memmove
53#undef memcpy
54#define memcpy memcpy
55#include "../../../../lib/decompress_unxz.c"
56#endif
57
58#ifdef CONFIG_KERNEL_LZ4
59#include "../../../../lib/decompress_unlz4.c"
60#endif
61
62int do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x))
63{
64	return __decompress(input, len, NULL, NULL, output, 0, NULL, error);
65}
66