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@c
@c COPYRIGHT (c) 1988-2002.
@c On-Line Applications Research Corporation (OAR).
@c All rights reserved.
@c
@c $Id$
@c
@chapter Default Fatal Error Processing
@section Introduction
Upon detection of a fatal error by either the
application or RTEMS the fatal error manager is invoked. The
fatal error manager will invoke a user-supplied fatal error
handler. If no user-supplied handler is configured, the RTEMS
provided default fatal error handler is invoked. If the
user-supplied fatal error handler returns to the executive the
default fatal error handler is then invoked. This chapter
describes the precise operations of the default fatal error
handler.
@section Default Fatal Error Handler Operations
The default fatal error handler which is invoked by
the fatal_error_occurred directive when there is no user handler
configured or the user handler returns control to RTEMS. The
default fatal error handler disables processor interrupts (i.e.
sets the I bit in the PSW register to 0), places the error code
in r1, and executes a break instruction to simulate a halt
processor instruction.
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