[Bug translator/23634] WARNING: Can't parse SDT_V3 operand for x86_64 qemu tapset probe points

[dgilbert at redhat dot com]

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

Dr. David Alan Gilbert <dgilbert at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
                 CC|                            |dgilbert at redhat dot com
         Resolution|WORKSFORME                  |---

--- Comment #6 from Dr. David Alan Gilbert <dgilbert at redhat dot com> ---
I'm seeing this here on RHEL8.4 qemu 5.2

probe qemu.kvm.ram_load_complete =
process("/usr/libexec/qemu-kvm").mark("ram_load_complete")
{
  ret = $arg1;
  seq_iter = $arg2;
}

# qemu-trace-stap -v run /usr/libexec/qemu-kvm  'mig*'  '*vmstate*'  
'*savevm*'  'bdrv*' 'blk*' 'qcow*' '*loadvm*' 'ram_*'
Using tapset dir '/usr/share/systemtap/tapset' for binary
'/usr/libexec/qemu-kvm'
Compiling script 'probe qemu.kvm.log.mig* {} probe qemu.kvm.log.*vmstate* {}
probe qemu.kvm.log.*savevm* {} probe qemu.kvm.log.bdrv* {} probe
qemu.kvm.log.blk* {} probe qemu.kvm.log.qcow* {} probe qemu.kvm.log.*loadvm* {}
probe qemu.kvm.log.ram_* {}'
WARNING: Can't parse SDT_V3 operand 'seq_iter.31484(%rip)' [man error::sdt]:
identifier '$arg2' at /usr/share/systemtap/tapset/qemu-kvm.stp:17906:14
 source:   seq_iter = $arg2;
                      ^
WARNING: cannot find module /usr/libexec/qemu-kvm debuginfo: No DWARF
information found [man warning::debuginfo]
semantic error: debuginfo scope not found for module '/usr/libexec/qemu-kvm',
cannot resolve context variable [man error::dwarf]: identifier '$arg2' at
:17906:14
        source:   seq_iter = $arg2;
                             ^

semantic error: debuginfo scope not found for module '/usr/libexec/qemu-kvm',
cannot resolve context variable [man error::dwarf]: identifier '$arg2' at
:17906:14
        source:   seq_iter = $arg2;
                             ^

semantic error: SDT asm not understood, requires debuginfo [man error::sdt]:
identifier '$arg2' at :17906:14
        source:   seq_iter = $arg2;
                             ^

Missing separate debuginfos, use: debuginfo-install
qemu-kvm-core-5.2.0-15.module+el8.4.0+10650+50781ca0.x86_64 
Pass 2: analysis failed.  [man error::pass2]
Number of similar warning messages suppressed: 1.
Rerun with -v to see them.


seq_iter here is a little odd; it's a local static.

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