[ECOS] fis load -d

Gary Thomas gary@mlbassoc.com
Tue Dec 31 11:30:00 GMT 2002


On Tue, 2002-12-31 at 11:55, Patrick Doyle wrote:
> > There are two lengths kept for each FIS image - the size
> > of the FLASH used (rounded to blocks) and the actual size
> > of the data (which may be less).  If you don't specify the
> > latter (via the -s option to 'fis create'), then the actual
> > size won't be known and all that is kept is the rounded size.
> >
> > Try using the "-s XXX" option when you create the image.  If
> > the 'fis -d' then still has a problem, I'd like to hear about it.
> >
> Hmmm....
> 
> RedBoot> fis create -b 0x160000 -l 2016720 -s 2016720 initrd
> ... Erase from 0x10180000-0x10370000: ...............................
> ... Program from 0x00160000-0x0034c5d0 at 0x10180000:
> ...............................
> ... Erase from 0x103f0000-0x10400000: .
> ... Program from 0x01fef000-0x01fff000 at 0x103f0000: .
> RedBoot> fis list
> Name              FLASH addr  Mem addr    Length      Entry point
> RedBoot           0x10000000  0x10000000  0x00020000  0x00000000
> RedBoot config    0x103E0000  0x103E0000  0x00001000  0x00000000
> FIS directory     0x103F0000  0x103F0000  0x00010000  0x00000000
> RedBoot[backup]   0x10020000  0x00020000  0x00020000  0x00020040
> Image             0x10040000  0x00020000  0x00140000  0x00020000
> initrd            0x10180000  0x00160000  0x001F0000  0x00160000
> RedBoot> fis load -d initrd
> decompression error: premature end of input
> RedBoot>
> 
> 
> But if I change 'gzip_close()' as follows:
>     case Z_OK:
> #if 1
>         if (stream_end) {
>           break;
>         }
> #endif
>         // Decompression didn't complete
>         p->msg = "premature end of input";
>         // fall-through
> 
> (i.e. I add the code inside the '#if 1' construct), it appears to work
> correctly.  I suppose I could go and chase down where the "-s" information
> gets recorded and see if that is what gets passed to the decompress
> function, but you asked if "-s XXX" solved the problem and the answer
> appears to be "not yet".

I seem to recall it working properly in the past.  However, there
have been some changes in the decompression code, so if your change
makes it work better, we should apply it.  Can you send a proper
patch, along with a ChangeLog entry, please?

-- 
------------------------------------------------------------
Gary Thomas                 |
MLB Associates              |  Consulting for the
+1 (970) 229-1963           |    Embedded world
http://www.mlbassoc.com/    |
email: <gary@mlbassoc.com>  |
gpg: http://www.chez-thomas.org/gary/gpg_key.asc
------------------------------------------------------------


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