[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-0.9-95-ge0a1741

[jistone at sourceware dot org]

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commit e0a17418b9d12e2a95dc345e95080ba31a41677f
Author: Josh Stone <jistone@redhat.com>
Date:   Mon Mar 9 19:12:02 2009 -0700

    Let -DINTERRUPTIBLE=0 mask interrupts in probes
    
    Some time ago we loosened up the code for all probe types to allow
    interrupts during the handler.  However, when probing something like
    kernel.trace("*"), you get a mix of probes in and out of the interrupt
    path, and it becomes much more common to have probes skipped due to
    interrupt reentrancy.
    
    The common_probe_entryfn_prologue and common_probe_entryfn_epilogue
    functions had an interruptible flag, but this was no longer used
    anywhere.  I removed this flag, but then reused the logic to check an
    INTERRUPTIBLE macro instead.  Now users can use -DINTERRUPTIBLE=0 to
    prevent interrupt reentrancy in their script, at the cost of a bit more
    overhead to toggle the interrupt mask.

commit be184deb8fa8f58ebe693c2483b9012daff6137d
Author: Josh Stone <jistone@redhat.com>
Date:   Mon Mar 9 19:10:20 2009 -0700

    Fix a few typos in stap(1)

-----------------------------------------------------------------------

Summary of changes:
 stap.1.in     |   24 ++++++++++++++++++------
 tapsets.cxx   |   51 +++++++++++++++++++++++++++------------------------
 translate.cxx |    3 +++
 3 files changed, 48 insertions(+), 30 deletions(-)


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systemtap: system-wide probe/trace tool