On Sat, Aug 6, 2011 at 11:06 AM, Mulyadi Santosa <[email protected]>wrote:
> On Sat, Aug 6, 2011 at 12:55, Venkatram Tummala <[email protected]> > wrote: > > Hi, > > > > I need to use some unexported kernel symbols in my kernel module but in > the > > particular kernel version i am based on (2.6.18 - RHEL 5.7), > > kallsyms_lookup_name is not exported and there is no > kallsyms_on_each_symbol > > in this kernel. And I can't change the kernel owing to reasons i have no > > control over. > > > > In this scenario, how do i use unexported symbols. Is there any other > > mechanism by which i can lookup the address of a kernel symbol. > > You can: - grep kallsyms_lookup from /proc/kallsyms (it is there on SL 5.5 and SL 6.0. You can edit your program and assign something like: int (*my_kallsyms_lookup_name)(const char *name) = (void *) KALLSYMS; where KALLSYMS is address found above, or your loading script can feed this address. if your kernel is compiled with kprobe, you can use it to get address too.
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