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Commit | Line | Data |
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06706c96 YS |
1 | /* |
2 | * arch/h8300/boot/compressed/misc.c | |
3 | * | |
4 | * This is a collection of several routines from gzip-1.0.3 | |
5 | * adapted for Linux. | |
6 | * | |
7 | * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994 | |
8 | * | |
9 | * Adapted for h8300 by Yoshinori Sato 2006 | |
10 | */ | |
11 | ||
7c0f6ba6 | 12 | #include <linux/uaccess.h> |
06706c96 YS |
13 | |
14 | /* | |
15 | * gzip declarations | |
16 | */ | |
17 | ||
18 | #define OF(args) args | |
19 | #define STATIC static | |
20 | ||
21 | #undef memset | |
22 | #undef memcpy | |
23 | #define memzero(s, n) memset((s), (0), (n)) | |
24 | ||
25 | extern int _end; | |
26 | static unsigned long free_mem_ptr; | |
27 | static unsigned long free_mem_end_ptr; | |
28 | ||
29 | extern char input_data[]; | |
30 | extern int input_len; | |
78f02cac | 31 | extern char output[]; |
06706c96 YS |
32 | |
33 | #define HEAP_SIZE 0x10000 | |
34 | ||
42b510eb | 35 | #ifdef CONFIG_KERNEL_GZIP |
06706c96 | 36 | #include "../../../../lib/decompress_inflate.c" |
42b510eb YS |
37 | #endif |
38 | ||
39 | #ifdef CONFIG_KERNEL_LZO | |
40 | #include "../../../../lib/decompress_unlzo.c" | |
41 | #endif | |
06706c96 YS |
42 | |
43 | void *memset(void *s, int c, size_t n) | |
44 | { | |
45 | int i; | |
46 | char *ss = (char *)s; | |
47 | ||
48 | for (i = 0; i < n; i++) | |
49 | ss[i] = c; | |
50 | return s; | |
51 | } | |
52 | ||
53 | void *memcpy(void *dest, const void *src, size_t n) | |
54 | { | |
55 | int i; | |
56 | char *d = (char *)dest, *s = (char *)src; | |
57 | ||
58 | for (i = 0; i < n; i++) | |
59 | d[i] = s[i]; | |
60 | return dest; | |
61 | } | |
62 | ||
63 | static void error(char *x) | |
64 | { | |
06706c96 YS |
65 | while (1) |
66 | ; /* Halt */ | |
67 | } | |
68 | ||
06706c96 YS |
69 | void decompress_kernel(void) |
70 | { | |
71 | free_mem_ptr = (unsigned long)&_end; | |
72 | free_mem_end_ptr = free_mem_ptr + HEAP_SIZE; | |
73 | ||
2d3862d2 | 74 | __decompress(input_data, input_len, NULL, NULL, output, 0, NULL, error); |
06706c96 | 75 | } |