Re: [Qemu-devel] tcg_abort()

[Gary Thomas <gary@mlbassoc.com>]

On 09/16/2009 10:16 AM, Laurent Desnogues wrote:
> 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 :-)

This does seem to work - at least I get farther along in the code.

Thanks

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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