Hi, I've 'fixed' a bug in a XNU function. Now I'm looking for a way to apply this fix with a kernel module/kext. I can't be bothered to compile after every Apple update a new kernel with my fix. So I want to write a kext which replaces the old function with my function. I've done this for many times on Solaris and Linux but I'm a newbie in the XNU world. I guess all what I need is a way (example code that works would be helpful!) to access the kernel symbol address table. With the address of the old function I should be able to patch a Jump into the function that points to my new function. Very evil, I know. Does somebody did something like this? Please let me know, if you have any idea.