Re: [PATCH v1 6/7] perf cs-etm: Add helper cs_etm__get_pid_fmt()
From: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: 2021-01-11 09:56:32
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On 1/9/21 7:44 AM, Leo Yan wrote:
This patch adds helper function cs_etm__get_pid_fmt(), by passing parameter "traceID", it returns the corresponding PID format. Signed-off-by: Leo Yan <redacted>
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
quoted hunk ↗ jump to hunk
--- tools/perf/util/cs-etm.c | 18 ++++++++++++++++++ tools/perf/util/cs-etm.h | 1 + 2 files changed, 19 insertions(+)diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c index 8c125134a756..6705d39c8cee 100644 --- a/tools/perf/util/cs-etm.c +++ b/tools/perf/util/cs-etm.c@@ -157,6 +157,24 @@ int cs_etm__get_cpu(u8 trace_chan_id, int *cpu) return 0; } +int cs_etm__get_pid_fmt(u8 trace_chan_id, u64 *pid_fmt) +{ + struct int_node *inode; + u64 *metadata; + + inode = intlist__find(traceid_list, trace_chan_id); + if (!inode) + return -EINVAL; + + metadata = inode->priv; + if (metadata[CS_ETM_MAGIC] == __perf_cs_etmv3_magic) + *pid_fmt = metadata[CS_ETM_PID_FMT]; + else + *pid_fmt = metadata[CS_ETMV4_PID_FMT]; + + return 0; +} + void cs_etm__etmq_set_traceid_queue_timestamp(struct cs_etm_queue *etmq, u8 trace_chan_id) {diff --git a/tools/perf/util/cs-etm.h b/tools/perf/util/cs-etm.h index 8cbbea6100a1..98801040175f 100644 --- a/tools/perf/util/cs-etm.h +++ b/tools/perf/util/cs-etm.h@@ -175,6 +175,7 @@ struct cs_etm_packet_queue { int cs_etm__process_auxtrace_info(union perf_event *event, struct perf_session *session); int cs_etm__get_cpu(u8 trace_chan_id, int *cpu); +int cs_etm__get_pid_fmt(u8 trace_chan_id, u64 *pid_fmt); int cs_etm__etmq_set_tid(struct cs_etm_queue *etmq, pid_t tid, u8 trace_chan_id); bool cs_etm__etmq_is_timeless(struct cs_etm_queue *etmq);
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