diff options
Diffstat (limited to 'bsps/m68k/mcf5235/gdb-init')
| -rw-r--r-- | bsps/m68k/mcf5235/gdb-init | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/bsps/m68k/mcf5235/gdb-init b/bsps/m68k/mcf5235/gdb-init new file mode 100644 index 0000000000..ec0628ad46 --- /dev/null +++ b/bsps/m68k/mcf5235/gdb-init @@ -0,0 +1,54 @@ +# +# Connect to the target. +# +target remote | m68k-bdm-gdbserver pipe /dev/bdmcf0 + +# +# The console loop in the Axman dbug monitor. Found by trial and error +# with the debugger. +# +thb *0xffe254c0 + +# +# Show the exception stack frame. +# +define show-exception-sframe + set $frsr = *(unsigned short *)((unsigned long)$sp + 2) + set $frpc = *(unsigned long *)((unsigned long)$sp + 4) + set $frfvo = *(unsigned short *)((unsigned long)$sp + 0) + set $frcode = $frfvo >> 12 + set $frvect = ($frfvo & 0xFFF) >> 2 + set $frstatus = ((($frfvo >> 10) & 3) << 2) | ($frfvo & 3) + printf "EXCEPTION -- SR:0x%X PC:0x%X FRAME:0x%x VECTOR:%d STATUS:%d\n", $frsr, $frpc, $frcode, $frvect, $frstatus + if $frstatus == 4 + printf " Fault Type: Error on instruction fetch" + end + if $frstatus == 8 + printf " Fault Type: Error on operand write" + end + if $frstatus == 12 + printf " Fault Type: Error on operand read" + end + if $frstatus == 9 + printf " Fault Type: Attempted write to write-protected space" + end +end + +# +# Run to initialise the RAM. The target will stop when the +# breakpoint is hit. Load the program. +# +c +load + +# +# Break on an exception. +# +b _uhoh + +# +# Travel to main then stop. +# +tb main +c + |