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This adds a precompiled file in PE binary format, with split debug file,
and tries to read its build_id and .gnu_debuglink sections, as well as
looking up the main symbol from the debug file. This should succeed if
libbfd is supported.

Committer testing:

  $ perf test "PE file support"
  68: PE file support           : Ok
  $
Signed-off-by: Remi Bernon <rbernon@codeweavers.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jacek Caban <jacek@codeweavers.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200821165238.1340315-3-rbernon@codeweavers.com

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>