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perf: Add attr->precise support to raw event parsing
Minimal userspace interface to the new 'precise' events flag. Can be used like "perf top -e r00c0p" which will use PEBS to sample retired instructions. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: paulus@samba.org Cc: eranian@google.com Cc: robert.richter@amd.com Cc: fweisbec@gmail.com LKML-Reference: <20100304140100.468665803@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -656,6 +656,10 @@ parse_raw_event(const char **strp, struct perf_event_attr *attr)
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return EVT_FAILED;
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return EVT_FAILED;
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n = hex2u64(str + 1, &config);
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n = hex2u64(str + 1, &config);
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if (n > 0) {
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if (n > 0) {
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if (str[n+1] == 'p') {
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attr->precise = 1;
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n++;
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}
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*strp = str + n + 1;
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*strp = str + n + 1;
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attr->type = PERF_TYPE_RAW;
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attr->type = PERF_TYPE_RAW;
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attr->config = config;
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attr->config = config;
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