cvs commit: src/sys/sys sysctl.h

John Baldwin jhb at FreeBSD.org
Mon Dec 31 13:12:05 PST 2007


jhb         2007-12-31 21:12:05 UTC

  FreeBSD src repository

  Modified files:
    sys/sys              sysctl.h 
  Log:
  Add very basic support for the kernel to export a list of features.  Each
  feature is represented by a node in the new 'kern.features' sysctl node.
  A feature is present if the corresponding node is present and evaluates to
  true.
  
  A FEATURE() wrapper macro is added which takes the sysctl node name and
  a description of the feature as the sole arguments and creates a read-only
  sysctl node with a value of 1.
  
  Discussed on:   arch
  
  Revision  Changes    Path
  1.155     +8 -0      src/sys/sys/sysctl.h


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