On Fri, 2005-02-18 at 10:42, Christoph Hellwig wrote: > On Fri, Feb 18, 2005 at 10:29:08AM -0800, Badari Pulavarty wrote: > > Hi, > > > > Trivial patch to export kallsyms_lookup_name() for > > kprobe/jprobe module use. > > > > Please apply. > > > > (BTW, I personally don't care if it should be > > EXPORT_SYMBOL_GPL or EXPORT_SYMBOL). > > Certainly should be _GPL. And where's the example user? >
GPL it is then :) There are bunch of kprobes/jprobe modules Packet tracer module: http://lkml.org/lkml/2004/8/16/179 I have few modules for adding dump_stack() and collect few stats in various places (mostly for debugging things). If you really want to see them I can post. The routine is used for resolving symbol to address, so that we can insert probe point, like .. + for (i = 0, nt = nettrace_objs; i < MAX_NETTRACE_ROUTINE; i++, nt++) { + nt = &nettrace_objs[i]; + nt->jp.kp.addr = (kprobe_opcode_t *) + kallsyms_lookup_name(nt->funcname); + if (nt->jp.kp.addr) { + printk("plant jprobe at %s (%p), handler addr %p\n", + nt->funcname, nt->jp.kp.addr, nt->jp.entry); + register_jprobe(&nt->jp); + } else { + printk("couldn't find %s to plant jprobe\n", + nt->funcname); + } + } Thanks, Badari - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
