[Bug translator/23634] New: WARNING: Can't parse SDT_V3 operand for x86_64 qemu shared libraries

[wcohen at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=23634

            Bug ID: 23634
           Summary: WARNING: Can't parse SDT_V3 operand  for x86_64 qemu
                    shared libraries
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: translator
          Assignee: systemtap at sourceware dot org
          Reporter: wcohen at redhat dot com
  Target Milestone: ---

On x86_64 Fedora 28 when trying the qemu_count.stp example getting a lot of
WARNING messages like the following:

$ stap -v qemu_count.stp 
Pass 1: parsed user script and 544 library scripts using
940556virt/623632res/9092shr/614684data kb, in 1540usr/170sys/1715real ms.
WARNING: Can't parse SDT_V3 operand 'balloon_opaque(%rip)' [man error::sdt]:
identifier '$arg1' at /usr/share/systemtap/tapset/qemu-system-aarch64.stp:17:12
 source:   opaque = $arg1;
                    ^
WARNING: Can't parse SDT_V3 operand 'balloon_opaque(%rip)' [man error::sdt]:
identifier '$arg1' at :17:12
 source:   opaque = $arg1;
                    ^
WARNING: Can't parse SDT_V3 operand 'seq_iter.32696(%rip)' [man error::sdt]:
identifier '$arg2' at :1572:14
 source:   seq_iter = $arg2;
                      ^
WARNING: Can't parse SDT_V3 operand 'seq_iter.32696(%rip)' [man error::sdt]:
identifier '$arg2' at :1572:14
 source:   seq_iter = $arg2;
                      ^
[wcohen@cervelo virtualization]$ rpm -qf
/usr/share/systemtap/tapset/qemu-system-aarch64.stp 
qemu-system-aarch64-core-2.11.2-2.fc28.x86_64
[wcohen@cervelo virtualization]$ rpm -q systemtap
systemtap-3.3-1.fc28.x86_64

The problem also appears with systemtap build from a current git checkout on
Fedora28.  However, do not see the problem on RHEL7.  Suspect that different
info being generated in .note.stapsdt for Fedora 28 and RHEL7.

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