[ECOS] qustion about GDB

[james chen]

       I have found the reason, it is that the IRQ bit is disable in Current
Progarm Staus Register(CPSR). I have check the vectors.S in arm/arch, I
don't find any code to re-enable IRQ in CPSR, where can I have a chance to
re-enable it in my platform code?

      it seem that eCos will run in supervisor mode between OS and
Applications. but I want  OS  running in supervisor mode and Applications
running in user mode, how to change it? Will eCos support this in future?

Best Regards,
james chen


> >>>>> "james" == james chen <james_ch1@sina.com> writes:
>
> >>>>>>> "james" == james chen <james_ch1@sina.com> writes:
> >>>> >>>>> "james" == james chen <james_ch1@sina.com> writes:
> james> the target is ARM
>
> >> And the platform?
> james> a custom test board based on ARM7TDMI, I have port eCos to
> james> it. but when I debug redboot with Multi-ICE, I found that the
> james> IRQ interrupt, I am not very sure that GDB has send CTRL-C to
> james> redboot. I have heard that GDB in cygwin doesn't generate
> james> CTRL-C, is it right?
>
> I think there once was a problem with bash eating ctrl-c signals, but
> I think that should have been resolved.
>
> If you wrote the port yourself, did you do the right things in the
> driver to enable RX interrupts? Otherwise I have no ideas.
>
> Jesper
>
>