Searched hist:"92 faa8b109180fa28ec899479f676e62a3a391b7" (Results 1 – 1 of 1) sorted by relevance
| /rk3399_rockchip-uboot/lib/zlib/ |
| H A D | inffast.c | 92faa8b109180fa28ec899479f676e62a3a391b7 Sat Oct 15 06:32:52 UTC 2011 Anatolij Gustschin <agust@denx.de> zlib: handle overflow while calculating available stream input size
If compressed data is located in sectors at the end of the flash and
it's offset + input stream size > 0xFFFFFFFF, the uncompressing time
is very long, since processing of the stream is done bytewise (and
not blockwise) due to overflow in inflate_fast() while calculation
and checking for enough input available.
Check for this overflow condition and limit the available stream
input size to the actually max. possible input size. This fixes
the problem.
The issue is easily reproduceable by placing a gziped bitmap in flash,
e.g. at FFF80000, and running 'bmp' commands like 'bmp info FFF80000'
or 'bmp display FFF80000'. The uncompressing can take up to 3 sec.
whereas it should normaly take a fraction of a second. If the
'splashimage' environment variable points to this address, the
booting time also increases significantly.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
|