patch applied (ghc): Expose all EventLog events as DTrace probes

[chak at cse.unsw.edu.au]

Sat Dec 12 02:08:09 PST 2009  Manuel M T Chakravarty <chak at cse.unsw.edu.au>
  * Expose all EventLog events as DTrace probes
  Ignore-this: 2c5ef30b1ff7fb2ea5fba8cf0a187d45
  - Defines a DTrace provider, called 'HaskellEvent', that provides a probe
    for every event of the eventlog framework.
  - In contrast to the original eventlog, the DTrace probes are available in
    all flavours of the runtime system (DTrace probes have virtually no
    overhead if not enabled); when -DTRACING is defined both the regular
    event log as well as DTrace probes can be used.
  - Currently, Mac OS X only.  User-space DTrace probes are implemented
    differently on Mac OS X than in the original DTrace implementation.
    Nevertheless, it shouldn't be too hard to enable these probes on other
    platforms, too.
  - Documentation is at http://hackage.haskell.org/trac/ghc/wiki/DTrace

    M ./configure.ac +10
    M ./includes/rts/EventLogFormat.h -1 +2
    M ./mk/config.mk.in +3
    M ./rts/Capability.c -6 +5
    M ./rts/PrimOps.cmm +15
    A ./rts/RtsProbes.d
    M ./rts/RtsStartup.c +3
    M ./rts/Schedule.c -11 +11
    M ./rts/Schedule.h -1 +1
    M ./rts/Sparks.c -1 +1
    M ./rts/Threads.c -2 +2
    M ./rts/Trace.c -2 +16
    M ./rts/Trace.h -1 +236
    M ./rts/eventlog/EventLog.c -1
    M ./rts/ghc.mk -1 +26
    M ./rts/sm/GC.c -3 +3

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20091212100809-6295e-f6d3da3fa03ec84ac88228f0cb1d48d2c97e0cae.gz