/usr/share/oprofile/mips/vr5432/unit_masks is in oprofile 0.9.9-0ubuntu8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | #
# MIPS VR5432 possible unit masks
#
name:zero type:mandatory default:0x0
0x0 No unit mask
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