perf-record & perf-report in root directory: can't find binariesfor symbol resolution

[Alan Jenkins]

Hi,

When I ran perf record & report in the root directory, I noticed that
perf couldn't find any binaries.  Both addresses and the actual names of
the binaries were printed as raw hex values:

# Overhead          Command  Shared Object  Symbol
# ........  ...............  .............  ......
#
    14.23%         modprobe       b777ce85  [.] 0x000000b777ce85
                |
                |--9.52%-- 0x804cad2
                |          0x8049b32


Strace showed that perf report was trying to open ".sbin/modprobe".  I
found a one-line fix, which should at least explain my problem:

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