checking symbols/modules/devices @ Linux

/proc/kallsyms

/proc/modules

     In order to see what symbols and modules are in the kernel, 

     simple use proc filesystem for those.

     They are simply checked by doing as following.

vi /var/log/messages <- or dmesg

lsmod | grep module_name

vi /proc/modules

     showing modules that are currently registered in the Linux kernel

     it is the same as using 'lsmod', but lsmod shows modules in the better way

vi /proc/kallsyms

        showing all the symbols managed by the kernel

        

        cf. global functions/variables that are statically determined those size can be symbols

/proc/devices

by checking here, it is possible to check all the loaded device driver and its major/minor number as well.