[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.7-202-gd60ddc4

[fche@sourceware.org]

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commit d60ddc41a32f3843d890bd288e98153e7a8b98d2
Author: Frank Ch. Eigler <fche@redhat.com>
Date:   Sun May 6 21:11:30 2012 -0400

    PR13667: beginning of a netfilter-hook tapset

commit b21055f0571362f9a9f5803f399f49d9a8ab60c6
Author: Frank Ch. Eigler <fche@redhat.com>
Date:   Sun May 6 21:01:17 2012 -0400

    PR13667: rework netfilter hook $context variable processing
    
    We now use tapset-mark.cxx style script/probe locals for incoming and
    outgoing parameters.  These are written/read during the probe prologue
    function, and specially marked to prevent optimization/elision.

commit df16cbea8d22d880c31ac162c1bad6b49c47902b
Author: Frank Ch. Eigler <fche@redhat.com>
Date:   Sun May 6 20:59:09 2012 -0400

    elaboration: don't elide assignments to skip_init vardecls
    
    Such vardecl objects may also used for output parameters, for which
    we don't want to suppress assignments to.
    
    * elaborate.cxx (dead_assignment_remover::visit_assignment): Don't kill
      lvalue skip_init vardecls.

commit 576acc1aa410f3377b0ba0a453f49ae6d255bd76
Author: Frank Ch. Eigler <fche@redhat.com>
Date:   Sun May 6 20:57:51 2012 -0400

    respond to pending_interrupts during sub-make sequence
    
    * buildrun.cxx (run_make_cmd): If we already received a ^C as per
      pending_interrupts, but some naive caller has tried to run yet
      another inferior make, abort without even trying.

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

Summary of changes:
 buildrun.cxx         |    3 +
 elaborate.cxx        |    5 +-
 tapset-netfilter.cxx |  301 ++++++++++++++++++++++----------------------------
 tapset/netfilter.stp |   57 ++++++++++
 4 files changed, 193 insertions(+), 173 deletions(-)
 create mode 100644 tapset/netfilter.stp


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