[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.1-253-g9fab226

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- Log -----------------------------------------------------------------
commit 9fab2262961c9cd1ab3efea5d362b8a6a1c0c7c3
Author: Josh Stone <jistone@redhat.com>
Date:   Thu Mar 18 15:39:42 2010 -0700

    PR11346: Move the skip-badvars logic into const-folding
    
    The const_folder is where we prune constant expressions, like
    conditionals based on a @defined($foo), so we want to give this a chance
    to work before skip-badvars comes in and throws a warning.
    
    As an added bonus, this makes skip-badvars more generic, so it will work
    even for non-dwarf $target variables.
    
    * elaborate.cxx (const_folder::visit_target_symbol): Enact skip-badvars.
    * tapsets.cxx (dwarf_var_expanding_visitor::visit_target_symbol): Don't
      worry about badvars here anymore.  Save the error now, clean up later.
    * testsuite/semok/badvar_undefined.stp: Test that @defined with
      skip-badvars doesn't throw any warnings.

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

Summary of changes:
 elaborate.cxx                        |   24 ++++++++++++++++++++
 tapsets.cxx                          |   39 +++++++++------------------------
 testsuite/semok/badvar_undefined.stp |    7 ++++++
 3 files changed, 42 insertions(+), 28 deletions(-)
 create mode 100755 testsuite/semok/badvar_undefined.stp


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