[Bug translator/16829] New: Trigger STAPBM_VERBOSE=true automatically when -v's are specified with java probes

["lberk at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=16829

            Bug ID: 16829
           Summary: Trigger STAPBM_VERBOSE=true automatically when -v's
                    are specified with java probes
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: translator
          Assignee: systemtap at sourceware dot org
          Reporter: lberk at redhat dot com

The stapbm script (handling stap/byteman interaction and setup) has a verbosity
trigger of 'STAPBM_VERBOSE!=no'.  Currently the only way to trigger it, is to
manually set the environment variable when running a script, leaving users that
don't know about it with very little information when java probes aren't
inserted.  This could be avoided if, when enough -v's are triggered (say 2+),
we automatically set and passed the 'STAPBM_VERBOSE=geronimo' variable to
stapbm.  This is particularly useful in cases where stap has been built from
git and a commonly missed step is linking the appropriate helper .jar and .so

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