[U-Boot] [PATCH 3/4] dumpimage: Added a tool to extract "data files" from U-Boot multifile images

[Simon Glass]

Hi,

On Tue, Sep 17, 2013 at 6:42 PM, <guilherme.maciel.ferreira at gmail.com>wrote:

> From: Guilherme Maciel Ferreira <guilherme.maciel.ferreira at gmail.com>
>
> Given a multifile image created through the mkimage's -d option:
>
>   $ mkimage -A x86 -O linux -T multi -n x86 -d
> vmlinuz:initrd.img:System.map \
>   multi.img
>
>   Image Name:   x86
>   Created:      Thu Jul 25 10:29:13 2013
>   Image Type:   Intel x86 Linux Multi-File Image (gzip compressed)
>   Data Size:    13722956 Bytes = 13401.32 kB = 13.09 MB
>   Load Address: 00000000
>   Entry Point:  00000000
>   Contents:
>      Image 0: 4040128 Bytes = 3945.44 kB = 3.85 MB
>      Image 1: 7991719 Bytes = 7804.41 kB = 7.62 MB
>      Image 2: 1691092 Bytes = 1651.46 kB = 1.61 MB
>
> It is possible to perform the converse operation -- extracting any file
> from
> the image -- by using the dumpimage's -i option:
>
>   $ dumpimage -i multi.img -p 2 System.map
>
> Although it's feasible to retrieve "data files" from image through
> scripting,
> the requirement to embed tools such 'dd', 'awk' and 'sed' for this sole
> purpose
> is cumbersome and unreliable -- once you must keep track of file sizes
> inside
> the image. Furthermore, extracting data files using "dumpimage" tool is
> faster
> than through scripting.
>
> Signed-off-by: Guilherme Maciel Ferreira <
> guilherme.maciel.ferreira at gmail.com>
>

Looks good and useful to me, but please use patman/checkpatch to check
style.

Regards,
Simon