Re: [Qemu-devel] Problem with translating on ARM and Qemu beginner question

[Peter Maydell]

On 25 November 2011 10:27, Gauresh Rane <address@hidden> wrote:
> I am working on developing a simulator on qemu. I am faced with a bug and I 
> have tried solving it for three days now with no success:
> Here is my problem:
> I trying to simulate LPC 1768 cortex m3 based processor on qemu. But I am 
> unable to get beyond the libc_init_array in the newlib.
> My qemu cpu jumps to program counter 0 when on jump inside init function of 
> __libc_init_array of newlib.

On M profile, suddenly finding yourself at address zero usually means
that (1) the core tried to take an exception and (2) you didn't
fill in the vector table so the address in the table for whichever
exception it was was zero.

Which instruction in the block is causing the problem?
(If this is the first instruction where you tried to push something,
has the stack pointer been set up correctly?)

-- PMM