Re: [microblaze-uclinux] uClinux finally works

[Ivan <salorankatu@xxxxxxxx>]

John Williams wrote:

> >>How big is your busybox executable (it's in uClinux-dist/romfs/bin/busybox)?
> >>
> > Is about 221 Kbytes... is very big!!! :)
> 
> Yes, that does seem very big.  In my current setup, the busybox app is 
> about 88Kbyte...
> 
> What was the result of running mb-flthdr on busybox?  I doubt very much 
> whether it is compressed, at that size...

# ls -lah busybox
-rwxr--r--   24 ivan     ivan         217K 2004-03-04 19:17 busybox

# mb-flthdr busybox
busybox
    Magic:        bFLT
    Rev:          4
    Build Date:   Thu Mar  4 13:22:06 2004
    Entry:        0x50
    Data Start:   0x2dc80
    Data End:     0x32ad0
    BSS End:      0x33dc0
    Stack Size:   0x4e20
    Reloc Start:  0x32ad0
    Reloc Count:  0xd8f
    Flags:        0x1 ( Load-to-Ram )

> If have this in my /vendors/Insight/mbvanilla_net/Makefile, under the 
> "image:" target:
> 
>          for i in $(ROMFSDIR)/bin/* ; do \
>                  $(CROSS)flthdr -z $$i; \
>          done
> 
> It just goes through and compresses all of the binaries, usually down to 
> about 50%.  The kernel automatically uncompresses them at load time.
> 
# mb-flthdr -z busybox
zflat busybox --> busybox

# ls -lah busybox
-rwxr--r--   24 ivan     ivan          83K 2004-03-04 23:40 busybox

# mb-flthdr busybox
busybox
    Magic:        bFLT
    Rev:          4
    Build Date:   Thu Mar  4 13:22:06 2004
    Entry:        0x50
    Data Start:   0x2dc80
    Data End:     0x32ad0
    BSS End:      0x33dc0
    Stack Size:   0x4e20
    Reloc Start:  0x32ad0
    Reloc Count:  0xd8f
    Flags:        0x5 ( Load-to-Ram Gzip-Compressed )

Great!!! 

> Yesterday, just for an experiment, I tried building the Samba supprt and 
> applications.  It worked immediately, I was able to mount our intranet 
> Samba share on my microblaze uClinux box!  This sort of interoperability 
> is what makes uClinux so powerful.
> 

Ohhhhh!!! Incredible!!! Then is possible to design applications for
uClinux-MicroBlaze on a PC and mounting the work directory, the
MicroBlaze can execute them...  as a hard remote disk :P

> Of those that have been "ported" to uClinux, they usually work just fine 
> on Microblaze.  Just enable them in the user config, make dep, and make.
> 
> This is for "normal" tools - low level ones like gdbserver for example 
> are strongly architecture dependent, so more work is required there. But 
> the standard file system stuff, web server, networking apps etc - they 
> work fine.
> 

Great!!! Great!!! 

Regards,

Ivan

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