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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
06706c96 YS |
2 | /* |
3 | * arch/h8300/boot/compressed/misc.c | |
4 | * | |
5 | * This is a collection of several routines from gzip-1.0.3 | |
6 | * adapted for Linux. | |
7 | * | |
8 | * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994 | |
9 | * | |
10 | * Adapted for h8300 by Yoshinori Sato 2006 | |
11 | */ | |
12 | ||
7c0f6ba6 | 13 | #include <linux/uaccess.h> |
06706c96 YS |
14 | |
15 | /* | |
16 | * gzip declarations | |
17 | */ | |
18 | ||
19 | #define OF(args) args | |
20 | #define STATIC static | |
21 | ||
22 | #undef memset | |
23 | #undef memcpy | |
24 | #define memzero(s, n) memset((s), (0), (n)) | |
25 | ||
26 | extern int _end; | |
27 | static unsigned long free_mem_ptr; | |
28 | static unsigned long free_mem_end_ptr; | |
29 | ||
30 | extern char input_data[]; | |
31 | extern int input_len; | |
78f02cac | 32 | extern char output[]; |
06706c96 YS |
33 | |
34 | #define HEAP_SIZE 0x10000 | |
35 | ||
42b510eb | 36 | #ifdef CONFIG_KERNEL_GZIP |
06706c96 | 37 | #include "../../../../lib/decompress_inflate.c" |
42b510eb YS |
38 | #endif |
39 | ||
40 | #ifdef CONFIG_KERNEL_LZO | |
41 | #include "../../../../lib/decompress_unlzo.c" | |
42 | #endif | |
06706c96 YS |
43 | |
44 | void *memset(void *s, int c, size_t n) | |
45 | { | |
46 | int i; | |
47 | char *ss = (char *)s; | |
48 | ||
49 | for (i = 0; i < n; i++) | |
50 | ss[i] = c; | |
51 | return s; | |
52 | } | |
53 | ||
54 | void *memcpy(void *dest, const void *src, size_t n) | |
55 | { | |
56 | int i; | |
57 | char *d = (char *)dest, *s = (char *)src; | |
58 | ||
59 | for (i = 0; i < n; i++) | |
60 | d[i] = s[i]; | |
61 | return dest; | |
62 | } | |
63 | ||
64 | static void error(char *x) | |
65 | { | |
06706c96 YS |
66 | while (1) |
67 | ; /* Halt */ | |
68 | } | |
69 | ||
06706c96 YS |
70 | void decompress_kernel(void) |
71 | { | |
72 | free_mem_ptr = (unsigned long)&_end; | |
73 | free_mem_end_ptr = free_mem_ptr + HEAP_SIZE; | |
74 | ||
2d3862d2 | 75 | __decompress(input_data, input_len, NULL, NULL, output, 0, NULL, error); |
06706c96 | 76 | } |