你看的函数decompressor是哪一个？:D decompress = decompress_method(buf, len, &compress_name);这个函数根据压缩文件(ramdisk.img)的头两个字节(0x1f,0x8b)
在内核文件lib/decompress.c中有 34 static const struct compress_format {
35 unsigned char magic;
36 const char *name;
37 decompress_fn decompressor;
38 } compressed_formats[] = {
39 { {037, 0213}, "gzip", gunzip }, //转为16进制0x1f 0x8b
40 { {037, 0236}, "gzip", gunzip },
41 { {0x42, 0x5a}, "bzip2", bunzip2 },
42 { {0x5d, 0x00}, "lzma", unlzma },
43 { {0xfd, 0x37}, "xz", unxz },
44 { {0x89, 0x4c}, "lzo", unlzo },
45 { {0, 0}, NULL, NULL }
46 };所以解压调用的是内核的lib/decompress_inflate.c中的gunzip这个函数 回复 12# wangcong02345
谢谢！
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