SOLVED -- Rtems for a space project:

[Massimo Tipaldi]

Hi Chris,

good news. I have managed to compile Rtems and Hello World on Windows. 
QEMU boots my hello.exe correctly.

Thanks for your inputs. I'll keep informed the Rtems community for what 
concerns its usage for the on-board SW of the ESA satellite.

Being able to use Rtmes in Windows could be a further valid reason for 
its choice.

Thanks again.

Massimo



Chris Johns ha scritto:
> Hi Massimo,
> 
> I have headed back to the start of the thread to see if we can correct 
> the impression this thread may have made and to get you sorted out. I am 
> sorry about the delay in getting something concrete to work with and to 
> test with.
> 
> Massimo Tipaldi wrote:
>>
>> In any case, it would have been nice to use RTEMS with a Windows host, 
>> but it seems so far that it is not possible. Executable files compiled 
>> on a Windows host are not compatible with the elf/multiboot 
>> specifications (surely for what we have seen in the last weeks).
>>
> 
> This statement is incorrect. The tools work correctly and build for the 
> pc586 target correctly and further boot as a multiboot image with qemu.
> 
>> Moreover, it would be even nice to me
>> 1) to write down this issue and to try to solve it in the next RTEMS 
>> versions or,
>> 2) if it is somehow already possible, to show the steps to generate a 
>> RTEMS application on a Windows host in an ELF format.
> 
> I assume a correctly set up MinGW and MSYS with an updated M4. I then 
> downloaded:
> 
>  http://www.rtems.org/ftp/pub/rtems/windows/4.9/build-5/rtems4.9-tools-5.exe 
> 
> 
> and ran it and installed the i386 tools. I then downloaded:
> 
>  http://www.rtems.org/ftp/pub/rtems/4.9.1/rtems-4.9.1.tar.bz2
> 
> then opened an RTEMS Tools window. I did this from the Start menu and 
> the RTEMS 4.8 menu. There is an entry called RTEMS Tools. This is a 
> specially set up Windows Command shell (cmd.exe). In the shell I ended 
> up at:
> 
>  c:\opt\rtems-4.9
> 
> I then:
> 
>  cd ..
>  mkdir src
>  cd src
>  mkdir rtems
>  cd rtems
>  mkdir 4.9
>  cd 4.9
>  tar jxf /c/downloads/rtems/rtems-4.9.1.tar.bz2
> 
> Please note you may need to vary the path to the RTEMS source code 
> depending on where you downloaded it. I then configured, built and 
> installed RTEMS:
> 
>  mkdir i386
>  cd i386
>  sh ../rtems-4.9.1/configure --target=i386-rtems4.9 --enable-rtemsbsp=pc586
>  make
>  make install
> 
> I then went to this page in the documentation:
> 
> http://www.rtems.org/onlinedocs/releases/rtemsdocs-4.9.1/share/rtems/html/started/started00063.html 
> 
> 
> and set the variable in the RTEMS Tools Windows Command shell:
> 
>  set RTEMS_MAKEFILE_PATH=c:\opt\rtems-4.9\i386-rtems4.9\pc586
> 
> I then download the examples:
> 
>  http://www.rtems.org/ftp/pub/rtems/4.9.1/examples-4.9.1.tar.bz2
> 
> unpacked them and built hello:
> 
>  mkdir examples
>  tar jxf /c/downloads/rtems/examples-4.9.1.tar.bz2
>  cd examples-4.9.1\hello_world_c
>  make
> 
> This created a 'o-optimize\hello.exe' and I could run this with my qemu 
> set up  detailed here:
> 
>  http://www.rtems.org/wiki/index.php/QEMU
> 
> Using the qemu.bat file and once at the grub prompt I entered:
> 
>  multiboot (hd0,0)/o-optimize/hello.exe
>  boot
> 
> and hello world ran and completed.
> 
> Please try this and let me know how it goes.
> 
> Regards
> Chris
> 


-- 

Eng. Massimo Tipaldi
Technical Directorate
SW Principal Engineer


Carlo Gavazzi Space SpA
Via Tiengo, snc - 82100 Benevento BN - Italy
Tel: + 39 0824481733
Fax: +39 0824481730
e-mail: mtipaldi at cgspace.it
www.cgspace.it

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