support for multiple ARM register banks in GDB

[Brendan Kehoe <brendan at zen dot org>]

Hi folks,

Is anyone already looking at GDB's port to the ARM, and in particular
what it believes is the single register bank on the chip?  For
processors like the ARM7TDMI, there are a few register banks depending
on the current mode of the ARM.  In order to debug (not C++) exceptions
on an ARM embedded target, it's necessary to be able to look at a
specific bank's register like r13_irq.  This sort of stuff appears to be
in place in the simulator, but not in GDB itself.

I'm curious if the ARM support under GDB mainly intended for RTOS-based
stuff, versus full-fledged embedded development?  (sic)

Thanks for any tips,
B