RTEMS 5 how to run "hello" example

Olga Syrbachova syrba4eva28 at gmail.com
Wed Mar 17 16:22:07 UTC 2021


What do you mean "regular README file"? There are 3 of them: README,
README.Makefile and README.waf. In README there is just a list of examples.
I tried to follow the README.Makefile instructions, and after running:

olga at olga-H270M-DS3H:~/development/rtems-examples/hello/hello_world_c$
RTEMS_MAKEFILE_PATH=${HOME}/development/rtems/5/sparc-rtems5/erc32 make
clean

and

olga at olga-H270M-DS3H:~/development/rtems-examples/hello/hello_world_c$
RTEMS_MAKEFILE_PATH=${HOME}/development/rtems/5/sparc-rtems5/erc32 make

there appeared an empty folder "o-optimize" in the examples's directory.
What's next?

And what do you mean "use ./waf"? When I run ./waf in "rtems-examples", it
says

olga at olga-H270M-DS3H:~/development/rtems-examples$ ./waf
The project was not configured: run "waf configure" first!
olga at olga-H270M-DS3H:~/development/rtems-examples$ waf configure
--rtems=$HOME/development/rtems/build/5
\--rtems-tools=$HOME/development/rtems/5 \--rtems-bsps=sparc/erc32

Command 'waf' not found, did you mean: ...

  command 'paf' from deb libpod-abstract-perl
  command 'wdf' from deb wit
  ...

On Wed, 17 Mar 2021 at 16:51, Gedare Bloom <gedare at rtems.org> wrote:

>
>
> On Wed, Mar 17, 2021 at 9:11 AM Olga Syrbachova <syrba4eva28 at gmail.com>
> wrote:
>
>> Thanks a lot! I have one more stupid question. How do I run examples from
>> git? I've cloned rtems-examples and tried to follow the instructions from
>> "README.waf", but it doesn't work. When I enter
>>
>>     $ waf configure --rtems=$HOME/development/rtems/bsps/5 \
>>                     --rtems-tools=$HOME/development/rtems/5 \
>>                     --rtems-bsps=sparc/erc32
>>
>> I get this error:
>>        Command 'waf' not found, did you mean: ...
>>
>> Use ./waf
>
>
>
>> I probably do something wrong. Do I need to do the instructions from "README.waf" at all? Or do I need to proceed as in this tutorial https://docs.rtems.org/branches/master/user/start/app.html with every example's directory? I would really appreciate some step-by-step tutorial or instructions as I'm totally frustrated right now and don't understand what to do.
>>
>> Btw there is a makefile in every example's directory. Can I use it instead of waf to compile the applications? If this is the case how do I do it?
>>
>> You can do either way of building the examples, see the regular README
> file for directions on the Makefile approach.
>
>
>> Many thanks in advance for any help!!!
>>
>>
>> On Tue, 16 Mar 2021 at 20:07, Joel Sherrill <joel at rtems.org> wrote:
>>
>>>
>>>
>>> On Tue, Mar 16, 2021 at 1:40 PM Olga Syrbachova <syrba4eva28 at gmail.com>
>>> wrote:
>>>
>>>> Thank you very much for your reply and for your concern!
>>>>
>>>> Actually I'd like to create my own application and test some
>>>> mechanisms, provided by RTEMS. This is a part of my Bachelor Thesis. I'd
>>>> like, for example, to create two/three tasks and make them communicate
>>>> with each other via queues, schedule them by priority etc. I have some
>>>> experience with FreeRTOS. It is run via Visual Studio, which is quite
>>>> simple. And now with RTEMS I am a bit frustrated and don't know where to
>>>> start. That's why I followed the tutorial on the Website. "Hello World"
>>>> program worked just fine, so I decided to try some more complicated
>>>> applications before I start with my own, that's why I decided to build
>>>> "ticker" with waf. Unfortunately I didn't find any helpful (for me)
>>>> tutorial on how to create applications in RTEMS. I mean I can handle
>>>> writing the App's code, but I don't get it how to compile and run it. So I
>>>> was just going to do the same as in the tutorial, but with my own
>>>> application. Is it the right way to proceed or is there another way ?
>>>>
>>>
>>> The tests in RTEMS are just that tests. They depend on things that
>>> shouldn't be installed or used by user applications.
>>>
>>> I would recommend cloning rtems-examples and going from one of those.
>>> There is a directory with variations on ticker and I suspect the base one
>>> is a better one to start from.
>>>
>>> If you want to write POSIX code, one of the POSIX examples there would
>>> serve you ok
>>>
>>> --joel
>>>
>>>
>>>>
>>>>
>>>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virenfrei.
>>>> www.avast.com
>>>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
>>>> <#m_-8071420466793372504_m_971219196135651785_m_277508452244861825_m_-8462729502950921950_m_6778778117170402098_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>>>
>>>> On Tue, 16 Mar 2021 at 16:29, 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
>>>>>
>>>>
>>>>
>>>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virenfrei.
>>>> www.avast.com
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>>>> <#m_-8071420466793372504_m_971219196135651785_m_277508452244861825_m_-8462729502950921950_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>>> _______________________________________________
>>>> users mailing list
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>>>
>>> _______________________________________________
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>
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