Configuring i.MX6 kernel for KGDBoE
In order to configure an i.MX6 Linux kernel to support KGDBoE, ensure that the following settings are enabled in your kernel configuration file (.config):
| Setting | Description | Other settings to enable |
|---|---|---|
| CONFIG_NETPOLL | Enables non-interrupt-based network interfaces required by KGDBoE | CONFIG_NETCONSOLE |
| CONFIG_KGDB | Enables kernel-mode debugging support | |
| CONFIG_TRACEPOINTS | Allows KGDBoE to hook various network-related functions | CONFIG_FTRACE |
Normally you can enable those settings by removing lines like "# CONFIG_NETPOLL is not set" from the .config file in your kernel source directory and then running the following command:
"ARCH=arm" make oldconfig
Kernel configuration script will then ask you whether to enable the options you removed. Ensure you answer 'yes' to all of them. Note that some of the options will not appear until you remove and enable the options required by them (e.g. CONFIG_NETPOLL will not be shown until you enable CONFIG_NETCONSOLE). See the table above for more details.