On Fri, Mar 4, 2011 at 11:19 PM, <tbartcz@xxxxxxxxxx> wrote: > I'm not sure if I got your point, but I guess you want to make sure that code activated by your configuration option is included into the kernel image. > Let me illustrate that by example: PC parallel port. (Device Drivers-> Parallel Port -> PC-style hardware). This option is associated with CONFIG_PARPORT_PC configuration option. This option includes the following source file drivers/parport/parport_pc.c. Looking at this file you will see that it exports parport_pc_probe_port method. > We can run the following command to see if it was included into the kernel image: > nm vmlinux | grep parport_pc_unregister_port > and you will get: > ffffffff8187b5fe r __kstrtab_parport_pc_unregister_port > ffffffff81860080 r __ksymtab_parport_pc_unregister_port > ffffffff81283b58 T parport_pc_unregister_port > > when we turn off this option for the command > nm vmlinux | grep parport_pc_unregister_port > is null > See what you mentioned can be done only if one knows the option parport_pc_unregister_port or is aware if where it exists. Just imagine if the person does not knows the file name or variable name then how will he get it. That is what I mentioned.I finally think that I got solution for it. Just go the concerned option and press a question mark over it. It will show you in background the variable associated with it. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
