[Bug tapsets/19070] New: Call to __ustack_raw(0) causes 'Unknown symbol in module' on rhel6-

[Bug tapsets/19070] New: Call to __ustack_raw(0) causes 'Unknown symbol in module' on rhel6-

[mcermak at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=19070

            Bug ID: 19070
           Summary: Call to __ustack_raw(0) causes 'Unknown symbol in
                    module' on rhel6-
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: tapsets
          Assignee: systemtap at sourceware dot org
          Reporter: mcermak at redhat dot com
  Target Milestone: ---

Call to __ustack_raw(0) causes 'Unknown symbol in module' on rhel6 and older
kernels (all arches):

=======
 6.7 S x86_64 # stap --poison-cache -e 'probe
oneshot{println(__ustack_raw(0))}'
WARNING: "uprobe_get_pc"
[/tmp/stapJi1kb4/stap_45d1c4a66fbffea13ac8a0c88df0581e_1588.ko] undefined!
ERROR: Couldn't insert module
'/tmp/stapJi1kb4/stap_45d1c4a66fbffea13ac8a0c88df0581e_1588.ko': Unknown symbol
in module
WARNING: /root/mcermak-systemtap/systemtap-build/bin/staprun exited with
status: 1
Pass 5: run failed.  [man error::pass5]
 6.7 S x86_64 #
=======

Using unoptimized mode (-u) helps here.

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[Bug tapsets/19070] Call to __ustack_raw(0) causes 'Unknown symbol in module' on rhel6-

[fche at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=19070

Frank Ch. Eigler <fche at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fche at redhat dot com

--- Comment #1 from Frank Ch. Eigler <fche at redhat dot com> ---
It might just need the /* pragma:uprobes */ ditty added.

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[Bug tapsets/19070] Call to __ustack_raw(0) causes 'Unknown symbol in module' on rhel6-

[mcermak at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=19070

--- Comment #2 from Martin Cermak <mcermak at redhat dot com> ---
(In reply to Frank Ch. Eigler from comment #1)
> It might just need the /* pragma:uprobes */ ditty added.

Yup, confirmed!

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[Bug tapsets/19070] Call to __ustack_raw(0) causes 'Unknown symbol in module' on rhel6-

[mcermak at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=19070

Martin Cermak <mcermak at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #3 from Martin Cermak <mcermak at redhat dot com> ---
Fixed in commit 9808d86fc891468546d3a601bcb74334d9dc7c2a

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