LXR linux/arch/arm/boot/compressed/decompress.c

   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