title: Find the OS X kext library that contains a symbol
body: <p>with Snow Leopard 10.6.4 I am obtaining an unresolved symbol:</p>
  
  <pre><code>$ sudo kextutil KRPC.kext
  (kernel) kxld[com.machackershandbook.kext.KRPC]: The following symbols are unresolved for this kext:
  (kernel) kxld[com.machackershandbook.kext.KRPC]: _mig_buckets
  </code></pre>
  
  <p>I cannot find this symbol using kextfind, however this symbol is exported in the kernel:</p>
  
  <pre><code>$ kextfind -dsym _mig_buckets
  $ nm -arch i386 /mach_kernel |grep _mig_buckets
  00844b00 S _mig_buckets
  $ nm -arch x86_64 /mach_kernel |grep _mig_buckets
  ffffff8000672e40 S _mig_buckets
  </code></pre>
  
  <p>How can I find the kext library to link with this symbol using the <code>OSBundleLibraries</code> dict?</p>