2 * arch/m32r/boot/compressed/misc.c
4 * This is a collection of several routines from gzip-1.0.3
7 * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
9 * Adapted for SH by Stuart Menefy, Aug 1999
11 * 2003-02-12: Support M32R by Takeo Takahashi
21 #define memzero(s, n) memset ((s), 0, (n))
23 static void error(char *m
);
27 static unsigned long free_mem_ptr
;
28 static unsigned long free_mem_end_ptr
;
30 #ifdef CONFIG_KERNEL_BZIP2
31 void *memset(void *s
, int c
, size_t n
)
41 #ifdef CONFIG_KERNEL_GZIP
42 void *memcpy(void *dest
, const void *src
, size_t n
)
52 #define BOOT_HEAP_SIZE 0x10000
53 #include "../../../../lib/decompress_inflate.c"
56 #ifdef CONFIG_KERNEL_BZIP2
57 #define BOOT_HEAP_SIZE 0x400000
58 #include "../../../../lib/decompress_bunzip2.c"
61 #ifdef CONFIG_KERNEL_LZMA
62 #define BOOT_HEAP_SIZE 0x10000
63 #include "../../../../lib/decompress_unlzma.c"
66 static void error(char *x
)
70 puts("\n\n -- System halted");
76 decompress_kernel(int mmu_on
, unsigned char *zimage_data
,
77 unsigned int zimage_len
, unsigned long heap
)
79 unsigned char *input_data
= zimage_data
;
80 int input_len
= zimage_len
;
81 unsigned char *output_data
;
83 output_data
= (unsigned char *)CONFIG_MEMORY_START
+ 0x2000
84 + (mmu_on
? 0x80000000 : 0);
86 free_mem_end_ptr
= free_mem_ptr
+ BOOT_HEAP_SIZE
;
88 puts("\nDecompressing Linux... ");
89 decompress(input_data
, input_len
, NULL
, NULL
, output_data
, NULL
, error
);
90 puts("done.\nBooting the kernel.\n");