[kgtp] Re: gdb couldn't connect ARM soc target
- From: Li Haifeng <omycle@xxxxxxxxx>
- To: kgtp@xxxxxxxxxxxxx
- Date: Wed, 22 May 2013 15:31:56 +0800
2013/5/17 Li Haifeng <omycle@xxxxxxxxx>
> Hi, list.
>
> Now, I am trying to use kgtp on ARM soc. After make kgtp by crosstools and
> transfer the kgtp.ko to target, I try gdb on PC to connect target.
>
> I follows https://code.google.com/p/kgtp/wiki/HOWTO . And use
> “nc -l 1234 </sys/kernel/debug/gtp >/sys/kernel/debug/gtp” command, but
> error throw. /sys/kernel/debug/gtp is not exist.
>
>
https://code.google.com/p/kgtp/wiki/HOWTO#Handle_the_issue_that_cannot_find_any_file_in_"/sys/";<https://code.google.com/p/kgtp/wiki/HOWTO#Handle_the_issue_that_cannot_find_any_file_in_>
Handle the issue that cannot find any file in "/sys/" or
"/sys/kernel/debug/"
Because KGTP interface is "/sys/kernel/debug/gtp", it will cannot be used
if cannot find any file in "/sys/" or "/sys/kernel/debug/".
If you got this issue, please make sure "Debug Filesystem" is opened in
your kernel config first.
If_your_system_use_the_Linux_kernel_that_is_built_by_yourself
If it is opened, please use following command mount sysfs.
sudo mount -t sysfs none /sys/
Then you can find files in "/sys/".
please use following command mount debugfs.
mount -t debugfs none /sys/kernel/debug/
Then you can find files in "/sys/kernel/debug/".
> Then, try "target remote targetip:1234" in gdb mode. The connecting always
> fail.
>
> Any suggestion is welcome.
>
> Thanks
> Haifeng Li
>
Thanks Teawater again.
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