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/* * 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"); } |