我目前正在尝试使用 PowerPC 500v2 处理器调试电路板。当我尝试使用 gdb 连接到板时，板已经为我准备好了，它给了我状态
qTStatus: Target returns error code '22'.
0x00004100 in ?? ()
qTStatus: Target returns error code '22'.
使用远程调试 1 组：
Remote debugging using /dev/ttyS6
Sending packet: $qSupported:multiprocess+;xmlRegisters=i386;qRelocInsn+#b5...Ack
Packet received:
Packet qSupported (supported-packets) is NOT supported
Sending packet: $Hg0#df...Ack
Packet received: OK
Sending packet: $qTStatus#49...Ack
Packet received: E22
qTStatus: Target returns error code '22'.
Sending packet: $?#3f...Ack
Packet received: S05
Sending packet: $Hc-1#09...Ack
Packet received: OK
Sending packet: $qC#b4...Ack
Packet received: QC00000000000002bc
Sending packet: $qAttached#8f...Ack
Packet received:
Packet qAttached (query-attached) is NOT supported
Sending packet: $qOffsets#4b...Ack
Packet received:
Sending packet: $g#67...Ack
Packet received: (Ton of Random Numbers)
Sending packet: $m40c0,1#c1...Ack
Packet received: E14
Sending packet: $m40c0,1#c1...Ack
Packet received: E14
Sending packet: $m40c0,8#c8...Ack
Packet received: E14
Sending packet: $m40c0,7#c7...Ack
Packet received: E14
Sending packet: $m40c0,40#f4...Ack
Packet received: E14
0x000040c0 in ?? ()
Sending packet: $qSymbol::#5b...Ack
Packet received:
Packet qSymbol (symbol-lookup) is NOT supported
Sending packet: $qTStatus#49...Ack
Packet received: E22
qTStatus: Target returns error code '22'.
我在单个串行端口上运行旧内核（2.6.27）以进行显示和调试。我主要使用 echo ttySX > /sys/module/kgdboc/parmeters/kgdboc 和 echo g > /proc/sysrq-trigger 进行设置，但我也在启动时尝试了内核参数，但似乎没有什么不同。出于某种原因，当我退出 gdb 时，它似乎可以将退出数据很好地发送到板子（板子停止暂停），但其他命令似乎都不起作用。