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From: Andrew Gallatin <gallatin@FreeBSD.ORG>
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Date: Mon, 18 Jan 1999 12:38:38 -0800 (PST)
Message-Id: <199901182038.MAA25852@freefall.freebsd.org>
To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG
Subject: cvs commit: src/sys/alpha/conf majors.alpha
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gallatin    1999/01/18 12:38:37 PST

  Modified files:
    sys/alpha/conf       majors.alpha 
  Log:
  Reserve a major number for use by the Iprobe device driver.
  Iprobe is an alpha-only system profiling suite which I'm porting from
  Linux/alpha to FreeBSD.
  
  Iprobe works by using the hardware profiling support built into
  alpha cpus.  In a nutshell,  what Iprobe does is to setup the alpha
  performance counters to sample the pc at a fairly high rate & dumps
  those pc samples out to user space.  Then some code runs to map the
  sampled PCs to functions.  You get a bit more than that (like the PSL
  word, so you can tell if you're in the kernel or userland, what the
  ipl is, etc).
  
  Revision  Changes    Path
  1.7       +2 -1      src/sys/alpha/conf/majors.alpha

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