How memory access violation should be handled ?

[Joel Sherrill]

Will this include enough information to know what type of access violation, the thread, the faulting address, and the instruction address?

It is a fatal error and it is a set of standard ones so maybe the master list can be extended.

Put yourself in the programmer's position. You want enough information to fix it.

Sebastian Huber <sebastian.huber at embedded-brains.de> wrote:


On 07/04/2013 04:40 AM, Hesham Moustafa wrote:
> Hi,
>
> What's the best way(s) to handle memory exceptions that result from memory
> access and permission violations ? for example, what should happen if an area
> of memory set to be read only and a thread tried to write data into this area ?
> Currently I am using it in debugging purpose to monitor exception handling and
> get some details, bit what should happen in practice ?

The systems should end up in an exception which should call

   rtems_fatal(
     RTEMS_FATAL_SOURCE_EXCEPTION,
     (rtems_fatal_code) exception_frame_pointer
   );

This is all a single address space operating system can do.  The fatal
extensions can then deal with the error.

--
Sebastian Huber, embedded brains GmbH

Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone   : +49 89 189 47 41-16
Fax     : +49 89 189 47 41-09
E-Mail  : sebastian.huber at embedded-brains.de
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