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Add generic fallback for perf counter read
author
Mathieu Desnoyers
<mathieu.desnoyers@efficios.com>
Wed, 6 Jul 2016 19:11:57 +0000
(15:11 -0400)
committer
Mathieu Desnoyers
<mathieu.desnoyers@efficios.com>
Wed, 6 Jul 2016 19:11:57 +0000
(15:11 -0400)
On x86, test the cap_user_rdpmc flag and fall-back on a system call if
unset.
On all other architectures, use the system call fallback.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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