Add generic fallback for perf counter read
authorMathieu Desnoyers <mathieu.desnoyers@efficios.com>
Wed, 6 Jul 2016 19:11:57 +0000 (15:11 -0400)
committerMathieu 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>

No differences found
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