diff options
Diffstat (limited to 'doc/cpu_supplement/sparc.t')
| -rw-r--r-- | doc/cpu_supplement/sparc.t | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/doc/cpu_supplement/sparc.t b/doc/cpu_supplement/sparc.t index cd5602c2db..d21e9feef1 100644 --- a/doc/cpu_supplement/sparc.t +++ b/doc/cpu_supplement/sparc.t @@ -951,10 +951,18 @@ handler. 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 to -level 15, places the error code in g1, and goes into an infinite -loop to simulate a halt processor instruction. +configured or the user handler returns control to RTEMS. + +If the BSP has been configured with @code{BSP_POWER_DOWN_AT_FATAL_HALT} +set to true, the default handler will disable interrupts +and enter power down mode. If power down mode is not available, +it goes into an infinite loop to simulate a halt processor instruction. + +If @code{BSP_POWER_DOWN_AT_FATAL_HALT} is set to false, the default +handler will place the value @code{1} in register @code{g1}, the +error source in register @code{g2}, and the error code in register +@code{g3}. It will then generate a system error which will +hand over control to the debugger, simulator, etc. @section Thread-Local Storage |