/var/mod/root $ cat /proc/kallsyms |grep printk
94024988 T vprintk
94024cfc T printk
940252f0 T __printk_ratelimit
940253e8 T printk_ratelimit
940c4a50 T printk_dummy
941eb544 t printk_time_setup
941b4038 U __printk [kdsldmod]
941b4038 U __printk [usbahcicore]
941b4038 U __printk [usbcore]
940253e8 U printk_ratelimit [usbcore]
941b4038 U __printk [isdn_fbox_fon4]
c00496b4 ? __mod_takeover_printk52 [ubik2]
c00496ec ? __mod_takeover_printktype51 [ubik2]
941b4038 U __printk [ubik2]
c00240e4 t ubik2_kernelprintk [ubik2]
c002a560 d __parm_takeover_printk [ubik2]
c002a968 b old_printk [ubik2]
c002a964 b takeover_printk [ubik2]
941b403c U console_printk [ubik2]
941b4038 U __printk [tiatm]
94024cfc U printk [tiatm]
941b4038 U __printk [Piglet]
941b4038 U __printk [mini_fo]
/var/mod/root $