[PATCH v2 0/6] Exception Management and Recovery

[Kinsey Moore]

This is a reworked patch set for management of recoverable exceptions.
The assembly that would have followed the exception handler has been
moved to a pair of epilogue functions to avoid the appearance of dead
code following the fatal error handlers and the signal mapping code has
been refactored into a fatal error handler. A test has been added to
test resumption of execution after an unknown instruction exception
occurs.