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458bd343e2
unnecessarily uses any variables defined by the BSP. On this sweep, use of BSP_Configuration and Cpu_table was eliminated. A significant part of this modification was the addition of macros to access fields in the RTEMS configuration structures. This is necessary to strengthen the division between the BSP independent parts of RTEMS and the BSPs themselves. This started after comments and analysis by Ralf Corsepius <corsepiu@faw.uni-ulm.de>.
138 lines
3.3 KiB
C
138 lines
3.3 KiB
C
/* Fatal Error Test
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*
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* NOTE:
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*
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* This test actually modifies the Configuration table and restarts
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* the executive. It is very carefully constructed to do this and
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* uses the Configuration very carefully.
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*
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* COPYRIGHT (c) 1989-1998.
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* On-Line Applications Research Corporation (OAR).
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* Copyright assigned to U.S. Government, 1994.
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.OARcorp.com/rtems/license.html.
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*
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* $Id$
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*/
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#include "system.h"
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#include <setjmp.h>
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char Workspace[ 64 * 1024 ] CPU_STRUCTURE_ALIGNMENT;
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typedef enum {
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FATAL_WORKSPACE_OF_ZERO,
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FATAL_NULL_WORKSPACE,
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FATAL_WORKSPACE_TOO_SMALL,
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FATAL_TASK_CREATE,
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FATAL_TASK_START
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} Fatal_errors_t;
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#define FATAL_LAST FATAL_TASK_START
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volatile Fatal_errors_t Case_in_switch;
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rtems_status_code Expected_Errors[] = {
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RTEMS_UNSATISFIED,
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RTEMS_INVALID_ADDRESS,
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RTEMS_UNSATISFIED,
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RTEMS_INVALID_PRIORITY,
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RTEMS_TASK_EXITTED
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};
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rtems_status_code Error_Happened[ FATAL_LAST + 1];
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jmp_buf Restart_Context;
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/*
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* We depend on this being zeroed during initialization. This
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* occurs automatically because this is part of the BSS.
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*/
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rtems_unsigned32 First_Time_Through;
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void Process_case();
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rtems_extension Fatal_extension(
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rtems_unsigned32 source,
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boolean is_internal,
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rtems_unsigned32 error
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)
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{
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int index;
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Error_Happened[ Case_in_switch ] = error;
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if ( First_Time_Through == 0 ) {
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Case_in_switch = FATAL_WORKSPACE_OF_ZERO;
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First_Time_Through = 1;
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setjmp( Restart_Context );
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} else if ( Case_in_switch == FATAL_LAST ) {
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/*
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* Depending on the C library we use, we cannot get the
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* task exitted error so do not check for it.
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*/
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puts( "*** TEST FATAL ***" );
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for ( index=0 ; index< FATAL_LAST ; index++ )
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put_error( Error_Happened[ index ], Expected_Errors[ index ] );
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puts( "NOT TESTING FATAL ERROR WHEN TASK EXITS -- C LIBRARY CATCHES THIS" );
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puts( "*** END OF TEST FATAL ***" );
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/*
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* returns to the default fatal error handler instead of
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* calling rtems_shutdown_executive
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*/
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return;
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} else {
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longjmp( Restart_Context, 1 );
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}
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Process_case();
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}
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void Process_case()
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{
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switch ( Case_in_switch ) {
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case FATAL_WORKSPACE_OF_ZERO:
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New_Configuration = rtems_configuration_get_table();
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New_Configuration.work_space_start = NULL;
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Case_in_switch = FATAL_NULL_WORKSPACE;
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break;
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case FATAL_NULL_WORKSPACE:
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New_Configuration.work_space_start = Workspace;
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New_Configuration.work_space_size = 256;
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Case_in_switch = FATAL_WORKSPACE_TOO_SMALL;
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break;
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case FATAL_WORKSPACE_TOO_SMALL:
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Initialization_tasks[ 0 ].initial_priority = RTEMS_CURRENT_PRIORITY;
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New_Configuration.work_space_size = sizeof( Workspace );
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Case_in_switch = FATAL_TASK_CREATE;
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break;
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case FATAL_TASK_CREATE:
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Initialization_tasks[ 0 ].initial_priority = 1;
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Initialization_tasks[ 0 ].entry_point = NULL;
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Case_in_switch = FATAL_TASK_START;
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break;
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case FATAL_TASK_START:
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/* this extension exits the test */
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Initialization_tasks[ 0 ].entry_point = Init;
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break;
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}
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rtems_initialize_executive(
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&New_Configuration, rtems_cpu_configuration_get_table() );
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}
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