Re: [ECOS] eb40a target submitted

[Tim Drury <tdrury@siliconmotorsports.com>]

> >
> > 2. When building the tests, the resulting elf image is not runnable
> > by redboot.  It has to be converted to srecs first.  Here is how
> > I built the tests:
>
> What's the problem?  What errors are you getting?
>
> If arm-elf-objcopy can read the file, GDB should be able to as well,
> since they use the same library for reading ELF images.

It's not gdb reading it, it's redboot.  Redboot (ROMRAM) appears
to load the elf image, but 'g' does nothing.  Looking at my (kick ass!)
logic analyzer, it's caught in a tight loop of running off in the sticks
then jumping back into the exception hander code in low memory.
I can look into this deeper if necessary.

> > A few things I love to see here: a) what is the proper way to
> > make the process create srecs instead of elf images?
>
> Why would you want to do this?  It seems to me that effort should be
> spent figuring out what problems you are having with GDB.

Well for one, the srecs are much smaller than the elf files so they load
much faster at 38kbaud.  But mainly because of the problem I'm having
with elf images.

>
> > b) can we have each test end by returning to redboot so the
> > target board doesn't have to be reset after each run?
>
> You could easily define it to work this way.  All tests go to
> 'cyg_test_exit()', which is currently defined as a hard loop.

I'd like to do this.  What I'm afraid of doing is making a change to the
entire ecos tree and screwing someone up.  Can I do this in such a
way that only the eb40a (or at91) targets do this?  Or would anyone
care whether I make the change to the entire tree?

> > c) can we automate this in Linux?

The running of _all_ the test cases.  I've been really spoiled with java
and junit.  junit defines a interface that all your test cases must implement,
then running junit's test runner program executes all your test cases
for you.  I'm looking at some c-equivalent programs right now, but that
won't help the test cases that have already been written.

-tim


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