RE: [ECOS] how work synthetic for exceptions

[trollepi jj <jackoaway@hotmail.com>]

Thanks for your quick reply.
I take a look on your link.
jjp
----------------------------------------
> Date: Thu, 3 Apr 2008 14:48:03 +0200
> From: andrew@lunn.ch
> To: jackoaway@hotmail.com
> CC: ecos-discuss@ecos.sourceware.org
> Subject: Re: [ECOS] how work synthetic for exceptions
> 
> On Thu, Apr 03, 2008 at 01:01:11PM +0100, trollepi jj wrote:
>> 
>> Hi,
>> I try do modify the execution of a thread for the synthetic target.
>> I've done that for an at91 board (using SWI,exception hanler and HAL_SavedRegisters to store the context info).
>> I put an exception handler for the CYG_HAL_SYS_SIGILL to see if i get the info pointers of the handler (3rd parameter of the function).
> 
> A normal signal handler does not have access to the registers for the
> normal program flow when the signal went off. However, there is often
> an undocumented way to get access to this. Take a look at:
> 
> http://www.tlug.org.za/wiki/index.php/Obtaining_a_stack_trace_in_C_upon_SIGSEGV
> 
> Using this it might be able to generate a HAL_SavedRegisters set.
> 
>       Andrew

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