Date: Thu, 1 Jul 2004 22:46:12 -0400 (EDT) From: mre2007@cs.columbia.edu To: freebsd-hackers@freebsd.org Subject: Dealing with an orphaned function inside the kernel Message-ID: <33087.24.243.189.238.1088736372.squirrel@webmail.cs.columbia.edu>
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FreeBSD Hackers: I am trying to use the sched_bind() function from sched.h inside a kernel module and having difficulties. It seems that sched_bind() is orphaned inside of sys/kern. I'm not sure how to stop the kernel linker from garbage collecting this function, due to the fact that it is never actually used in the kernel. I determined this to be the case by noticing that: nm `sysctl -n kern.bootfile` | grep sched_bind doesn't return the symbol, and the fact that I grepped for sched_bind and didn't see it anywhere else other than the schedule files. When I try to load my kernel module using this function, I get the message: link_elf: symbol sched_bind undefined What's the proper way to remedy this situation? Maybe a function pointer in an innocuous place in the code? Can someone provide a good example perhaps of the proper way to do this? Thanks in advance, -Marc Eisenbarth
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