[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.2-227-g69f6472

[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.2-227-g69f6472

[jistone]

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- Log -----------------------------------------------------------------
commit 69f64724ae182ca37f62fe4a369a7aad7345639e
Author: Josh Stone <jistone@redhat.com>
Date:   Tue Jun 8 12:32:28 2010 -0700

    AUTHORS bump

commit 8ea20756d7e3236da8aaee3f7db8cd76e5bbc3e6
Author: Josh Stone <jistone@redhat.com>
Date:   Fri Jun 4 16:01:32 2010 -0700

    uprobes_ppc: define MSR_MASK and clean up error cases
    
    - The emulate_step code was copied from the kernel, but needs to have
      the #define MSR_MASK too.
    - A case in emulate_step could fall through with an illegal instruction,
      just break and return 0 instead.
    - A few privileged instructions can't be emulated and so return -1, but
      we don't want uprobe_emulate_insn to see that as non-zero -> TRUE.
    
    At a minimum, this restores whatever SSOL-faulty behavior would have
    existed before emulate_step was added.  We should also add checks in
    arch_validate_probed_insn to avoid such instructions in the first place.
    
    Signed-off-by: Josh Stone <jistone@redhat.com>
    Acked-by: Jim Keniston <jkenisto@us.ibm.com>

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

Summary of changes:
 AUTHORS                       |    1 +
 runtime/uprobes/uprobes_ppc.c |   11 ++++++++++-
 2 files changed, 11 insertions(+), 1 deletions(-)


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systemtap: system-wide probe/trace tool