On 11 February 2008 21:29, Joel Sherrill wrote:
> We use versioned target names. Do I have to list them all in
> the following section?
>
> =====================================
> # This is a list of toolchains that are supported on this board.
> set_board_info target_install {powerpc-rtems4.9}
> =====================================
I don't know for a fact, I've never tried it, but I'd guess...
runtest.exp: if { [lsearch -exact $target_install $target_alias] >= 0 }
.. you need to explicitly enumerate them. (There might be a good argument for
making that --glob or even --regex).
> What about arguments to the simulator? As you can see in
> the example, we use this to invoke powerpc-rtems-run:
>
> RUN -f DEVICE_TREE_FILE EXECUTABLE
>
> where DEVICE_TREE_FILE has the device configuration. How does
> that get passed through? Where should the DEVICE_TREE_FILE
> go?
I handle that - and this works for me because, like your case, the
EXECUTABLE is last on the commandline - by doing the equivalent of
set_board_info sim "RUN -f DEVICE_TREE_FILE"
and the EXECUTABLE gets appended by proc sim_spawn. (Looking at that, it
seems there is some way of specifying the sim and the flags separately by
set_board_info sim "RUN"
set_board_info sim,flags "-f DEVICE_TREE_FILE"
but I have never tried it myself.)
>>> + an extra object file to link with.
>>>
>>
>> set_board_info ldflags
>>
> Do I custom compile testrun.c myself? Or is that automatic?
> For sure we need the main() wrapper for no return code. I
> can have the application start at main() so that isn't an issue.
There's a thing called
set_board_info needs_status_wrapper 1
which I forget how it works, but that's one way to make it work. In my case,
I've added a flag to my simulator so that the sim itself returns the exit
status of the executable (and detects if the simulated app hits abort() or
exit() at the same time, I have no runtime library to speak of).
> I assume I have to manually compile an rtems specific support
> file before the tests are run right?
If the needs_status_wrapper stuff doesn't do what you want, I think - again,
untested - you could probably invoke the compiler from your baseboard script.
Don't really know about this one though.
>>> + target CFLAGS and LDFLAGS
>>>
>>
>> set_board_info cflags
>> set_board_info ldflags
>>
>>
> As you can hopefully see now, we need to generically do this:
>
> -B ${prefix}/${target}/BSP/ -specs bsp_specs -qrtems CPU_CFLAGS
>
> where each board has its own CPU_CFLAGS. For psim, it would be
> something like this when fully expanded:
>
> -B/home/joel/rtems-4.9-work/bsp-install//powerpc-rtems4.9/psim/lib/ \
> -specs bsp_specs -qrtems -mcpu=603e -Dppc603e
>
> I hate to hard-code a path or target since it is versioned. Are there
> DejaGNU variables I can use?
I pass external environment vars into the script by using
make check RUNTESTFLAGS=" ... MY_SCRIPT_VAR=${MY_SCRIPT_VAR} ... "
then I can use the value of MY_SCRIPT_VAR in the various set_board_info flags;
that should do for getting things like prefix and target into your flags.
>> So, how far are you at? Have you got a baseboard script written yet?
>> Have you read the "Extending DejaGnu" chapter of the manual, specifically
>> the "Adding a new board" section?
>>
>>
> I'm hacking on that. But am not comfortable with this and
> still don't know how to invoke runtest properly. :)
I always use
make -k check RUNTESTFLAGS="... whatever ..."
and don't bother trying to invoke it directly. (Can replace "check" by
"check-gcc" if you want to skip the mangler tests etc.)
Haven't tried your testcase yet; I'll look at it if we can't get this going
in just a few rounds of email exchanges.
cheers,
DaveK
--
Can't think of a witty .sigline today....
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