Re: [Qemu-devel] [Bug 657006] Re: arm v7M - svc insn doesn't trigger PendSV handler

[Peter Maydell]

On 20 August 2012 17:43, Mark Phillips <address@hidden> wrote:
> I have been experimenting with Sebastian's patches mentioned earlier
> (http://git.rtems.org/rtems/tree/c/src/lib/libbsp/arm/lm3s69xx?id=e1ebfebf1bffe3e7731ac529409bd2576285467b)
> and think I have found another major issue:-(
>
> My reading of the ARM documentation is that the SVC opcode should perform a 
> synchronous exception.
> It doesn't, the calling code continues to execute asynchronously.

If true this would indeed be a significant bug. It's definitely not
true for A/R profile cores... Do you have some test code /debug trace
that demonstrates this?

-- PMM