decompress.c (1766B)
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}