[ECOS] how to check my modifications to the kernel without a board?

Andrew Lunn andrew@lunn.ch
Thu Jun 14 16:16:00 GMT 2007

On Thu, Jun 14, 2007 at 05:14:18PM +0200, xiaolu zhao wrote:
> Hi, I met a big problem, would you like to give me some advices?
> I did some modifications to the ecos Kernel code(like in sched.cxx,
> thread.hxx etc.). But I have no a real hardware board. So I want to
> use VMware as a virtual machine to see the results.Is it possible?

Should be, but i have never done it myself. However, i would actually
recommend using the synthetic target on Linux.

> I tried the redbbot on the Vmware and the "hello.c" example works. But
> after I modified the kernel code and rebuild the ecos using the
> configtool, it did not give any compilation complaints. I know it is
> impossible, there should be a lot of errors in the code. Does Redbbot
> have nothing to do with the ecos kernel files?

Redboot does not use the kernel. 
> If the redboot has nothing to do with the kernels, how can I check my
> modificaiton to the kernel files with VMare?

I would suggest you use the kernel test cases. These are good tests to
see if your changes have broken anything. 

Try doing:

ecosconfig new pc_rltk8139
edit ecos.ecc and change CYG_HAL_STARTUP to floppy
ecosconfig tree
make -s tests

Once you have fixed all the compiler error you can run the test cases
in install/tests/kernel/current.


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