Improve 'perf script' failure error #227
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Report an error when running 'perf script' on the perf.data file fails. Currently when 'perf script' fails it just passes empty data on to `inferno` which results in an unclear error about missing stack data. Instead, this change checks the exit status of 'perf script' and immediately exits if it failed.
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Report an error when running
perf scripton theperf.datafile fails. Currently whenperf scriptfails it just passes empty data on toinfernowhich results in an unclear error about missing stack data.Instead, this change checks the exit status of
perf scriptand immediately exits if it failed.This fixes #226.