[Bug translator/21489] New: don't prefer vmlinux.id for build-id

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

https://sourceware.org/bugzilla/show_bug.cgi?id=21489

            Bug ID: 21489
           Summary: don't prefer vmlinux.id for build-id
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: translator
          Assignee: systemtap at sourceware dot org
          Reporter: fche at redhat dot com
  Target Milestone: ---

We've had a report where a running kernel matched a proper kernel-build tree,
but stap/elfutils searched for debuginfo under /boot first.  We ended up with
no build-id mismatch errors, because stap picked up the one from the
kernel-build-tree, rather than from the /boot/vmlinux* file itself.  That would
have signalled the user that something was wrong with his installation.

The translator should not prefer the vmlinux.id file, esp. because its search
path does not match that of elfutils' search for vmlinux/debuginfo.

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