| |
| #include "zconf.h" |
| |
| extern char input_data[]; |
| extern char input_data_end[]; |
| |
| unsigned char *output_data = NULL; |
| |
| unsigned long free_mem_ptr = 0; |
| unsigned long free_mem_end_ptr = 0; |
| |
| void error(char *x) |
| { |
| while(1); |
| } |
| |
| extern int do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x)); |
| |
| void decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p, unsigned long free_mem_ptr_end_p) |
| { |
| output_data = (unsigned char *)output_start; |
| free_mem_ptr = free_mem_ptr_p; |
| free_mem_end_ptr = free_mem_ptr_end_p; |
| |
| do_decompress((u8 *)input_data, input_data_end - input_data + 1, output_data, error); |
| } |
| |
| typedef unsigned long CYG_WORD; |
| |
| #define CYG_STR_UNALIGNED(X, Y) \ |
| (((CYG_WORD)(X) & (sizeof (CYG_WORD) - 1)) | \ |
| ((CYG_WORD)(Y) & (sizeof (CYG_WORD) - 1))) |
| |
| #define CYG_STR_OPT_BIGBLOCKSIZE (sizeof(CYG_WORD) << 2) |
| |
| #define CYG_STR_OPT_LITTLEBLOCKSIZE (sizeof (CYG_WORD)) |
| |
| void *memcpy( void *s1, const void *s2, size_t n ) |
| { |
| char *dst = (char *) s1; |
| const char *src = (const char *) s2; |
| CYG_WORD *aligned_dst; |
| const CYG_WORD *aligned_src; |
| |
| if (dst == src) |
| return s1; |
| |
| if (n < sizeof(CYG_WORD) || CYG_STR_UNALIGNED (src, dst)) |
| { |
| while (n--) |
| *dst++ = *src++; |
| return s1; |
| } |
| |
| aligned_dst = (CYG_WORD *)dst; |
| aligned_src = (const CYG_WORD *)src; |
| |
| while (n >= CYG_STR_OPT_BIGBLOCKSIZE) |
| { |
| *aligned_dst++ = *aligned_src++; |
| *aligned_dst++ = *aligned_src++; |
| *aligned_dst++ = *aligned_src++; |
| *aligned_dst++ = *aligned_src++; |
| n -= CYG_STR_OPT_BIGBLOCKSIZE; |
| } |
| |
| while (n >= CYG_STR_OPT_LITTLEBLOCKSIZE) |
| { |
| *aligned_dst++ = *aligned_src++; |
| n -= CYG_STR_OPT_LITTLEBLOCKSIZE; |
| } |
| |
| dst = (char*)aligned_dst; |
| src = (const char*)aligned_src; |
| while (n--) |
| *dst++ = *src++; |
| |
| return s1; |
| } |