77 lines
1.3 KiB
C
77 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* arch/h8300/boot/compressed/misc.c
|
|
*
|
|
* This is a collection of several routines from gzip-1.0.3
|
|
* adapted for Linux.
|
|
*
|
|
* malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
|
|
*
|
|
* Adapted for h8300 by Yoshinori Sato 2006
|
|
*/
|
|
|
|
#include <linux/uaccess.h>
|
|
|
|
/*
|
|
* gzip declarations
|
|
*/
|
|
|
|
#define OF(args) args
|
|
#define STATIC static
|
|
|
|
#undef memset
|
|
#undef memcpy
|
|
#define memzero(s, n) memset((s), (0), (n))
|
|
|
|
extern int _end;
|
|
static unsigned long free_mem_ptr;
|
|
static unsigned long free_mem_end_ptr;
|
|
|
|
extern char input_data[];
|
|
extern int input_len;
|
|
extern char output[];
|
|
|
|
#define HEAP_SIZE 0x10000
|
|
|
|
#ifdef CONFIG_KERNEL_GZIP
|
|
#include "../../../../lib/decompress_inflate.c"
|
|
#endif
|
|
|
|
#ifdef CONFIG_KERNEL_LZO
|
|
#include "../../../../lib/decompress_unlzo.c"
|
|
#endif
|
|
|
|
void *memset(void *s, int c, size_t n)
|
|
{
|
|
int i;
|
|
char *ss = (char *)s;
|
|
|
|
for (i = 0; i < n; i++)
|
|
ss[i] = c;
|
|
return s;
|
|
}
|
|
|
|
void *memcpy(void *dest, const void *src, size_t n)
|
|
{
|
|
int i;
|
|
char *d = (char *)dest, *s = (char *)src;
|
|
|
|
for (i = 0; i < n; i++)
|
|
d[i] = s[i];
|
|
return dest;
|
|
}
|
|
|
|
static void error(char *x)
|
|
{
|
|
while (1)
|
|
; /* Halt */
|
|
}
|
|
|
|
void decompress_kernel(void)
|
|
{
|
|
free_mem_ptr = (unsigned long)&_end;
|
|
free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
|
|
|
|
__decompress(input_data, input_len, NULL, NULL, output, 0, NULL, error);
|
|
}
|