Shuangjun Zhu wrote:
>
> Hello,
>
> I want to use the gdb to debug the kernel version 2.2.13 for my MPC860
> board.
> So I set the compiler configuration parameter CONFIG_KGDB = YES,
> but when I re-compile the kernel, it complains that
>
> arch/ppc/kernel/kernel.o(.text+0x68ac): undefined reference to
> `getDebugChar'
> arch/ppc/kernel/kernel.o(.text+0x6934): undefined reference to
> `putDebugChar'
>
> PROBLEM:
> what's wrong? I find no define for function "getDebugChar" in arch/ppc
> directory.
You have to write these functions yourself. The stub uses them to
communicate with the debugger through whatever device is available on
the board. See 'Targets' -> 'Remote' -> 'Remote Serial' in GDB docs.
Regards,
-velco
-
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