82 lines
1.7 KiB
C
82 lines
1.7 KiB
C
|
/*
|
||
|
|
* 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
|
||
|
|
static void *memset(void *s, int c, size_t n)
|
||
|
|
{
|
||
|
|
char *ss = s;
|
||
|
|
|
||
|
|
while (n--)
|
||
|
|
*ss++ = c;
|
||
|
|
return s;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CONFIG_KERNEL_GZIP
|
||
|
|
#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, NULL, error);
|
||
|
|
puts("done.\nBooting the kernel.\n");
|
||
|
|
}
|