Re: [patch] Add support for ARMv7M devices.

[Richard Earnshaw <Richard dot Earnshaw at buzzard dot freeserve dot co dot uk>]

On 09/06/10 15:03, Kazu Hirata wrote:
> Hi,
>
> Attached is a patch to add support for ARMv7M devices.
>
> The patch is bigger than it really is due to the signature change to
> arm_pc_is_thumb.
>
> Here are some highlights:
>
> - arm_pc_is_thumb always returns 1 if the target is an ARMv7M device.
>
> - arm_write_pc is adjusted so that it will set the Thumb bit in XPSR
>    for an ARMv7M device.  Note that the position of Thumb bit in the
>    status register is different between ARMv7M devices and older
>    devices.
>
> - arm_gdbarch_init looks for "org.gnu.gdb.arm.core-v7m".

It looks to me as though this code should also mostly apply to ARMv6M as 
well (coretex-m0/1).  However, the choice of name 
'org.gnu.gdb.arm.core-v7m' seems to suggest otherwise.  Is there really 
a difference between the support needed for these cores?  Or would a 
more suitable name be appropriate?

R.