Re: [Qemu-devel] Better Cortex-M support?

[Liviu Ionescu]

On 12 Nov 2014, at 01:08, Peter Maydell <address@hidden> wrote:

> Cortex-M4 support would definitely be interesting.

:-)

any hints on what is missing for Cortex-M4 support? are all thumb instructions 
supported? the hard FP? 

> If you have some fixes you think should be in mainline
> the first step is to send patches to us.

sure, I'd be happy to contribute all my changes back.

do you really need the git format-patch files sent via email? I thought that 
using a remote to my git://git.code.sf.net/p/gnuarmeclipse/qemu is easier.

I tried to make my changes not affect the current arm-softmmu configuration, 
and for this I added a new target gnuarmeclipse-softmmu.

I also added 3 new configuration variables (branding_message="", 
semihosting_native="no", verbose="no") to control the features I added, and 
enable them only on the gnuarmeclipse target. these variables are passed to 
config-host.h and used to include my changes.

hopefully these will not damage anything in the current distribution (but need 
to be checked).


some of my intermediate commits were changed in subsequent commits, so only the 
final result is relevant.


regards,

Liviu