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