reduce the size of busybox

[Rob Landley]

Hey everybody!

On Saturday 10 June 2006 3:02 am, Dan Nicolaescu wrote:
> Hi!
>
> The size of busybox can be reduced a lot by using a new compilation
> flag in gcc-4.1
>
> I did a make menuconfig (on a x86 Fedora Core 5 machine) and turned on
> these options:
>
>        [*] Build BusyBox as a static binary (no shared libs)
>        [*] Compile all sources at once
>
> The adding "-fwhole-program --combine" to the do_link command for the
> "busybox_unstripped" rule in Makefile.
>
> The size of the binary looks like this:
>
> size -f busybox_unstripped.original busybox.whole-program
>    text    data     bss     dec     hex filename
>  661891    1976   18268  682135   a6897 busybox_unstripped.original
>  489777    1940    7600  499317   79e75 busybox.whole-program
>
> I am not sure if the size decrease would be so drastical in case of a
> more rich busybox configuration. But I think this should help.

Wow!  Cool!

> Cheers,
>                 --dan

Hopefully _this_ is going to merge strings. :)

Rob
-- 
Never bet against the cheap plastic solution.