1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
/*
* arch/m32r/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 SH by Stuart Menefy, Aug 1999
*
* 2003-02-12: Support M32R by Takeo Takahashi
*/
/*
* gzip declarations
*/
#define STATIC static
#undef memset
#undef memcpy
#define memzero(s, n) memset ((s), 0, (n))
static void error(char *m);
#include "m32r_sio.c"
static unsigned long free_mem_ptr;
static unsigned long free_mem_end_ptr;
#ifdef CONFIG_KERNEL_BZIP2
void *memset(void *s, int c, size_t n)
{
char *ss = s;
while (n--)
*ss++ = c;
return s;
}
#endif
#ifdef CONFIG_KERNEL_GZIP
void *memcpy(void *dest, const void *src, size_t n)
{
char *d = dest;
const char *s = src;
while (n--)
*d++ = *s++;
return dest;
}
#define BOOT_HEAP_SIZE 0x10000
#include "../../../../lib/decompress_inflate.c"
#endif
#ifdef CONFIG_KERNEL_BZIP2
#define BOOT_HEAP_SIZE 0x400000
#include "../../../../lib/decompress_bunzip2.c"
#endif
#ifdef CONFIG_KERNEL_LZMA
#define BOOT_HEAP_SIZE 0x10000
#include "../../../../lib/decompress_unlzma.c"
#endif
static void error(char *x)
{
puts("\n\n");
puts(x);
puts("\n\n -- System halted");
while(1); /* Halt */
}
void
decompress_kernel(int mmu_on, unsigned char *zimage_data,
unsigned int zimage_len, unsigned long heap)
{
unsigned char *input_data = zimage_data;
int input_len = zimage_len;
unsigned char *output_data;
output_data = (unsigned char *)CONFIG_MEMORY_START + 0x2000
+ (mmu_on ? 0x80000000 : 0);
free_mem_ptr = heap;
free_mem_end_ptr = free_mem_ptr + BOOT_HEAP_SIZE;
puts("\nDecompressing Linux... ");
__decompress(input_data, input_len, NULL, NULL, output_data, 0,
NULL, error);
puts("done.\nBooting the kernel.\n");
}
|
