[Bug translator/20307] New: tapset/linux/rpc.stp error (possible because of 'private' keyword)

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

https://sourceware.org/bugzilla/show_bug.cgi?id=20307

            Bug ID: 20307
           Summary: tapset/linux/rpc.stp error (possible because of
                    'private' keyword)
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: translator
          Assignee: systemtap at sourceware dot org
          Reporter: dsmith at redhat dot com
  Target Milestone: ---

I'm seeing something odd with rpc.stp:

====
# stap -vp4 ../src/testsuite/buildok/rpc-all-probes.stp 
Pass 1: parsed user script and 115 library scripts using
159296virt/42368res/8576shr/29248data kb, in 490usr/0sys/489real ms.
WARNING: cannot probe .return of 1 inlined functions  rpc_release_task
WARNING: cannot probe .return of 1 inlined functions  rpc_release_task
WARNING: cannot probe .return of 1 inlined functions  rpc_release_task
WARNING: cannot probe .return of 1 inlined functions  rpc_release_task
WARNING: cannot probe .return of 1 inlined functions  rpc_release_task
semantic error: unresolved arity-1 global array __rpc_create_args, missing
global declaration?: identifier '__rpc_create_args' at
/usr/local/share/systemtap/tapset/linux/rpc.stp:182:12
        source:                 __args = __rpc_create_args[tid()]
                                         ^

semantic error: unresolved arity-1 global array __rpc_create_args, missing
global declaration?: identifier '__rpc_create_args' at :182:12
        source:                 __args = __rpc_create_args[tid()]
                                         ^

semantic error: unresolved arity-1 global array __rpc_create_args, missing
global declaration?: identifier '__rpc_create_args' at :182:12
        source:                 __args = __rpc_create_args[tid()]
                                         ^

semantic error: unresolved arity-1 global array __rpc_create_args, missing
global declaration?: identifier '__rpc_create_args' at :182:12
        source:                 __args = __rpc_create_args[tid()]
                                         ^

semantic error: unresolved arity-1 global array __rpc_create_args, missing
global declaration?: identifier '__rpc_create_args' at :182:12
        source:                 __args = __rpc_create_args[tid()]
                                         ^

semantic error: unresolved arity-1 global array __rpc_create_args, missing
global declaration?: identifier '__rpc_create_args' at :182:12
        source:                 __args = __rpc_create_args[tid()]
                                         ^

semantic error: unresolved arity-1 global array __rpc_create_args, missing
global declaration?: identifier '__rpc_create_args' at :182:12
        source:                 __args = __rpc_create_args[tid()]
                                         ^

semantic error: unresolved arity-1 global array __rpc_create_args, missing
global declaration?: identifier '__rpc_create_args' at :182:12
        source:                 __args = __rpc_create_args[tid()]
                                         ^

semantic error: unresolved arity-1 global array __rpc_create_args, missing
global declaration?: identifier '__rpc_create_args' at :182:12
        source:                 __args = __rpc_create_args[tid()]
                                         ^

Pass 2: analyzed script: 158 probes, 880 functions, 9 embeds, 1 global using
274048virt/159104res/10624shr/144000data kb, in 24400usr/490sys/24885real ms.
Pass 2: analysis failed.  [man error::pass2]
====

Off the top of my head, I'd guess that the 'private' keyword applied to that
global array is somehow causing this problem. '__rpc_create_args' is declared
in that file like:

====
@__private30 global __rpc_create_args                                           
====

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