RTEMS 5 how to run "hello" example

Richi Dubey richidubey at gmail.com
Tue Mar 16 15:38:14 UTC 2021 

Also,
This might help all the people new to RTEMS:
https://rtemswithrichi.wordpress.com/debug-with-gdb-and-qemu-on-arm-realview/
.

On Tue, Mar 16, 2021 at 8:59 PM Vijay Kumar Banerjee <vijay at rtems.org>
wrote:

> On Tue, Mar 16, 2021 at 4:07 AM Olga Syrbachova <syrba4eva28 at gmail.com>
> wrote:
> >
> > Thank you very much for your reply!
> >
> > I've added
> > includes =
> '/home/olga/development/rtems/rtems-5/testsuites/support/include/tmacros.h',
> >
> It takes the relative address to the directory where the header file
> is. For example, if you're building from the
> "/home/olga/development/rtems" directory the includes argument would
> be:
>
> `includes = './rtems-5/testsuites/support/include/'`
>
> BTW, your first email at the start of the thread says that you just
> want to run the samples, the samples get built as a part of the rtems
> and you'll be able to see the *.exe files in the build directory. Is
> there any reason that you're trying to build it in a separate
> directory with waf? Experimenting with the build system is a good
> reason though, just making sure that we're not pushing you in the
> wrong direction and your objective is indeed to try waf on your own
> and not just running RTEMS hello app.
>
> Best regards,
> Vijay
>
>
> > it still says "No such file or directory". I'm pretty sure the path is
> write, though there is now another path to "tmacros.h" (the first one
> below), it's a folder named "tmacros.h" and it's empty.
> > olga at olga-H270M-DS3H:~$ locate tmacros.h
> >
> /home/olga/development/app/ticker/build/sparc-rtems5-erc32/$HOME/developement/rtems/rtems-5/testsuites/support/include/tmacros.h
> > /home/olga/development/rtems/rtems-5/testsuites/support/include/tmacros.h
> >
> >
> > On Mon, 15 Mar 2021 at 21:00, Vijay Kumar Banerjee <vijay at rtems.org>
> wrote:
> >>
> >> On Mon, Mar 15, 2021 at 1:53 PM Olga Syrbachova <syrba4eva28 at gmail.com>
> wrote:
> >> >
> >> > Sure! https://github.com/syrba4eva/RTEMS/blob/main/wscript
> >>
> >> Thanks. In this line:
> https://github.com/syrba4eva/RTEMS/blob/main/wscript#L33
> >> After cflags parameter, add "includes", for example:
> >>
> >> bld(features = 'c cprogram',
> >>       target = 'ticker.exe',
> >>       cflags = '-g -O2',
> >>       includes='. .. ./original/path/to/tmacros.h',
> >>       source = ['init.c', 'tasks.c'])
> >>
> >> you don't need to copy tmacros.h or any headers from rtems, just add
> >> the path to includes.
> >>
> >>
> >> Best regards,
> >> Vijay
> >>
> >> >
> >> > On Mon, 15 Mar 2021 at 20:36, Vijay Kumar Banerjee <vijay at rtems.org>
> wrote:
> >> >>
> >> >> On Mon, Mar 15, 2021 at 1:30 PM Olga Syrbachova <
> syrba4eva28 at gmail.com> wrote:
> >> >> >
> >> >> > Thank you very much for your reply!
> >> >> > Unfortunately I'm still a bit confused and don't quite understand
> what to do. Where do I need to modify the "include" parameter? In the
> wscript file from the "hello" example there is no "include" parameter. I
> also tried to find a tutorial on how to write a wscript, but didn't find
> any (Could you suggest any please?). So I tried to copy the file
> "tmacros.h" from testsuites/support/include to app/ticker. Now after
> running ./waf I get an error, which tells me that "buffer_test_io.h" wasn't
> found. When I copied it to my app/ticker directory it didn't work and I
> still have the same error.
> >> >> >
> >> >> Would it be possible for you to paste your wscript somewhere (like
> >> >> gist.github.com) and share it here so that we can have a look and
> help
> >> >> you with that?
> >> >>
> >> >> Best regards,
> >> >> Vijay
> >> >>
> >> >> > Waf: Entering directory
> `/home/olga/development/app/ticker/build/sparc-rtems5-erc32'
> >> >> > [1/3] Compiling tasks.c
> >> >> > [2/3] Compiling init.c
> >> >> > In file included from ../../system.h:17:0,
> >> >> >                  from ../../init.c:15:
> >> >> > ../../tmacros.h:32:10: fatal error: buffer_test_io.h: No such file
> or directory
> >> >> >  #include <buffer_test_io.h>
> >> >> >           ^~~~~~~~~~~~~~~~~~
> >> >> > compilation terminated.
> >> >> >
> >> >> > In file included from ../../system.h:17:0,
> >> >> >                  from ../../tasks.c:22:
> >> >> > ../../tmacros.h:32:10: fatal error: buffer_test_io.h: No such file
> or directory
> >> >> >  #include <buffer_test_io.h>
> >> >> >           ^~~~~~~~~~~~~~~~~~
> >> >> > compilation terminated.
> >> >> >
> >> >> > Waf: Leaving directory
> `/home/olga/development/app/ticker/build/sparc-rtems5-erc32'
> >> >> > Build failed
> >> >> >  -> task in 'ticker.exe' failed with exit status 1 (run with -v to
> display more information)
> >> >> >  -> task in 'ticker.exe' failed with exit status 1 (run with -v to
> display more information)
> >> >> >
> >> >> > On Mon, 15 Mar 2021 at 16:21, Vijay Kumar Banerjee <
> vijay at rtems.org> wrote:
> >> >> >>
> >> >> >> Hi Olga,
> >> >> >>
> >> >> >>
> >> >> >> On Mon, Mar 15, 2021 at 8:29 AM Olga Syrbachova <
> syrba4eva28 at gmail.com> wrote:
> >> >> >> >
> >> >> >> > Thank you very much for your reply!
> >> >> >> >
> >> >> >> > I've built the RTEMS Kernel for erc32. Then I followed this
> tutorial https://docs.rtems.org/branches/master/user/start/app.html to
> build a "Hello World" application and it works just fine. Then I've tried
> to create another application following the steps in the tutorial.
> >> >> >> > 1. In $HOME/development/app/ I created a directory "ticker".
> >> >> >> > 2. cd ticker
> >> >> >> > 3. curl https://waf.io/waf-2.0.19 > waf
> >> >> >> >     chmod +x waf
> >> >> >> >     git init
> >> >> >> >     git submodule add git://git.rtems.org/rtems_waf.git
> rtems_waf
> >> >> >> > 4. I've copied the files "init.c", "tasks.c", "system.h" from
> testsuites/samples
> >> >> >> > 5. In the "wscript" I've changed the lines 32 and 34 to target
> = 'ticker.exe', source = ['init.c', 'tasks.c']
> >> >> >> > 6. ./waf configure --rtems=$HOME/development/rtems/5
> --rtems-bsp=sparc/erc32
> >> >> >> > 7. and running ./waf next, I get an error. It looks like the
> file "tmacros.h", which is included in "system.h", cannot be found.
> >> >> >> >
> >> >> >> You have changed the "target" and "source" parameters in your
> wscript.
> >> >> >> You'd also need to modify the "include" parameter and add relative
> >> >> >> path to tmacros.h. For multiple headers, you'll have to add the
> paths
> >> >> >> as a string with space-separated values or a list like this:
> >> >> >> `includes='./ ../ ./path/to/include/'`
> >> >> >>
> >> >> >>
> >> >> >> > What am I doing wrong? Is the way to run other examples exactly
> the same as to run a "Hello World" example?
> >> >> >> The other examples will also follow a similar wscript structure
> but
> >> >> >> hello world is the simple one with fewer includes so it's a good
> place
> >> >> >> to start if you're trying to learn how to make a separate project
> with
> >> >> >> RTEMS applications using waf.
> >> >> >>
> >> >> >>
> >> >> >> Best regards,
> >> >> >> Vijay
> >> >> >> > _______________________________________________
> >> >> >> > users mailing list
> >> >> >> > users at rtems.org
> >> >> >> > http://lists.rtems.org/mailman/listinfo/users
> _______________________________________________
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