[yocto] Unable to get serial console login prompt - PowerPC 440 Virtex 5 processor

[Khem Raj]

On Tue, Aug 7, 2012 at 1:10 PM, Elvis Dowson <elvis.dowson at gmail.com> wrote:
> Hi,
>         I decided to modify the bash and busybox recipes to build
> statically, and try to create a core-image-minimal root filesystem, so that
> I can get a sensible prompt with paths set, etc, to debug the dynamic
> linking issue.
>
> Just copying a static bash binary to the root of the ramdisk image and
> specifying init=/bash didn't work for a static bash+core-image-minimal root
> filesystem, it aborts with a panic. If I have only the bash executable in
> the ramdisk and nothing else, it displays the bash prompt.
>
> Now, I've noticed something weird during core-image-minimal image
> generation.
>
> When I build the static versions of bash, the size of the binary is 8MB, but
> when I explore the binary in the tar.gz image or extract it to my ramdisk,
> it shows as being only 1.6MB.
>
> How can there be a difference between the statically built bash file
>
> /tool/yocto/poky/build/tmp/work/ppc440-poky-linux/bash-4.2-r4/image/bin/bash
> (8MB)
>
> and in the file contained in the core-image-minimal-virtex-5.tar.gz
>
> /bin/bash (1.6MB)
>
> I'm seeing the same discrepancy for busybox
>
> /tool/yocto/poky/build/tmp/work/ppc440-poky-linux/busybox-1.19.4-r18/image/bin/busybox
> (8.2 MB)
>
> and in the generate rootfs image
>
> /bin/busybox (1.4MB)
>
> This shouldn't happen, right?

I assume they are stripped in case where they are smaller.

>
> Best regards,
>
> Elvis Dowson
>
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