perf tools: Add perf_pmu__scan_file()

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Add a function to scan a sysfs file within the pmu device directory.

This will be used to read capability values from the PMU 'caps'
subdirectory.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1406786474-9306-8-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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Adrian Hunter 2014-07-31 09:00:50 +03:00 • committed by Arnaldo Carvalho de Melo

parent dc0a620242

commit 7d4bdab5a4

2 changed files with 40 additions and 0 deletions

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37

tools/perf/util/pmu.c

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3

tools/perf/util/pmu.h

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