Re: [Qemu-devel] tcg_abort()

[Laurent Desnogues <laurent.desnogues@gmail.com>]

On Wed, Sep 16, 2009 at 5:46 PM, Gary Thomas <gary@mlbassoc.com> wrote:
[...]
>
> /qemu-git-2009_09_16/tcg/arm/tcg-target.c:773: tcg fatal error
>
>>   - how to reproduce the issue
>
> This one's harder - I'm running an x86 gnome application on an ARM
> system.  I'm not sure exactly what it was doing when the abort happened.
>
> Questions:
>  * The function in tcp-target.c seems complete, but it has
>      #if 1
>        tcg_abort();
>      #endif
>    which implies it's not complete or maybe just untested?
>  * How can I gather more information about what was going on
>    at the time to aid in fixing this?

Your problem is probably due to generated code being too far from
the helper functions (the helper functions can be thought of as a
library).

Could please try to replace the tcg_abort() on line 773 with these
two lines?

        tcg_out_movi32(s, cond, TCG_REG_R8, val);
        tcg_out32(s, (cond << 28) | 0x012fff30 | TCG_REG_R8); /* blx r8 */

I didn't test it, so you'll be my guinea pig :-)


Laurent