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[Bug testsuite/15625] unprivileged_embedded_C test confused by stub registers.stp
- From: "fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Fri, 14 Jun 2013 00:09:49 +0000
- Subject: [Bug testsuite/15625] unprivileged_embedded_C test confused by stub registers.stp
- Auto-submitted: auto-generated
- References: <bug-15625-6586 at http dot sourceware dot org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=15625
Frank Ch. Eigler <fche at redhat dot com> changed:
What |Removed |Added
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CC| |fche at redhat dot com
--- Comment #3 from Frank Ch. Eigler <fche at redhat dot com> ---
Considering that unprivileged mode probes do not include kprobes or similar
kernel-internal facilities, it may be sufficient to mark these register.stp
tapset functions /* myproc-unprivileged */ (to check process ownership).
As a belt-and-suspenders kind of thing, _stp_arg() could get a
STP_PRIVILEGE-level test to permit access to CONTEXT->regs (the
non-user-space one) only to stapsys/stapdev users.
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