Raspberry Pi Rtems-Graphical-Toolkit

[Chris Johns]

On 01/05/2018 02:49, Emre Cetin wrote:
> Hello everyone, 

Hi and welcome.

> I have a Rtems project with Raspberry pi, I need to compile a simple QT program.
> I tried to run this project on Beaglebone Black, but it may not be as fast as it
> should be, it seems easier on Rpi. And I work on the Rpi 1 model B. In the last
> few days I am trying to establish the necessary libraries for QT, but I have not
> been successful.

This sounds like an interesting project.

> I've been working on Rtems-Graphical-Toolbase, but I have not
> been successful in compilation. I tried a lot of ways but I do not know how to
> load libraries manually yet, I am new to embedded systems.

Welcome to embedded and embedded real-time software.

> 
> I finally used these instructions, it seemed the easiest way to me;
> 
> (in right directory)
> ../source-builder/sb-set-builder \
>     --prefix=$HOME/development/rtems/compiler/5 \
>     --rtems-bsp=arm/raspberrypi \
>     --log=graphic-build-log.txt \
>     --with-rtems-bsp=raspberrypi \
>     --pkg-tar-files \
>     graphics/freetype2.bset \
>     graphics/libjpeg.bset \
>     graphics/libpng.bset \
>     graphics/libtiff.bset \
>     graphics/t1lib.bset \
>     graphics/microwindows.bset
> 
> RTEMS Source Builder - Set Builder, 5 (f3b1700dfd4d)
> Build Set: graphics/microwindows.bset
> Build Set: graphics/freetype2.bset
> config: graphics/freetype-2.4.10-1.cfg
> package: freetype-v2.4.10-arm-rtems5-1
> error: hash: freetype-2.4.10.tar.gz: insecure: md5
> Build FAILED
> 
> It seems that new packages are causing problems, and I do not know how to update
> the codes. Can you give me some advice?

A change went into the RSB in October last year to stop using the MD5 and SHA1
checksums as they are insecure. The ticket that covered this issue is:

 https://devel.rtems.org/ticket/2536

It would seem some packages were missed and they need a better checksum. Could
you please reopen the ticket and indicate the issue you have by pasting in the
above output?

FYI the fix is easy, run a sha512 command on your host on the file or patch
which should be in the `sources` or `patches` directory and then update the line
in the related file. The freetype config file is:

 rtems/config/graphics/freetype-2.4.10-1.cfg

On the line starting with `%hash` change `md5` to `sha512` and paste in the
SHA512 checksum.

I see ...

 libjpeg-9a-1.cfg
 libpng-1.5.24-1.cfg
 libpng-1.6.21-1.cfg
 libtiff-4.0.2-1.cfg
 libtiff-4.0.6-1.cfg
 microwindows-0.93-dev-1.cfg
 t1lib-5.1.2-1.cfg

... are still using MD5 and will need updating.

We welcome patches, it is often the fastest way to get something like this fixed. :)

Thanks
Chris