難道是unpack 到別的地方去了?
懂的兄弟幫忙 分析下作者: flw2 時(shí)間: 2011-03-23 17:00
/* inbuf - input buffer
*len - len of pre-read data in inbuf
*fill - function to fill inbuf when empty
*flush - function to write out outbuf
*outbuf - output buffer
*posp - if non-null, input position (number of bytes read) will be
* returned here
*
*If len != 0, inbuf should contain all the necessary input data, and fill
*should be NULL
*If len = 0, inbuf can be NULL, in which case the decompressor will allocate
*the input buffer. If inbuf != NULL it must be at least XXX_IOBUF_SIZE bytes.
*fill will be called (repeatedly...) to read data, at most XXX_IOBUF_SIZE
*bytes should be read per call. Replace XXX with the appropriate decompressor
*name, i.e. LZMA_IOBUF_SIZE.
*
*If flush = NULL, outbuf must be large enough to buffer all the expected
*output. If flush != NULL, the output buffer will be allocated by the
*decompressor (outbuf = NULL), and the flush function will be called to
*flush the output buffer at the appropriate time (decompressor and stream
*dependent).
*/作者: liu090 時(shí)間: 2011-03-23 18:43
兄弟,謝謝你的回答,我是2.6.29 我沒找到你貼的這段注釋
能否講具體點(diǎn),謝了作者: liu090 時(shí)間: 2011-03-23 19:02
不過我根據(jù)你的提示,我又看了下代碼:
gzip => flush_window (initramfs.c) => flush_buffer => write_buffer =>actions[state]() =>
static __initdata int (*actions[])(void) = {
[Start] = do_start,
[Collect] = do_collect,
[GotHeader] = do_header,
[SkipIt] = do_skip,
[GotName] = do_name,
[CopyFile] = do_copy,
[GotSymlink] = do_symlink,
[Reset] = do_reset,
};