diff mbox series

[v3,10/12] perf arm-spe: Set sample flags with supplement info

Message ID 20250217195908.176207-11-leo.yan@arm.com (mailing list archive)
State New
Headers show
Series perf script: Refactor branch flags for Arm SPE | expand

Commit Message

Leo Yan Feb. 17, 2025, 7:59 p.m. UTC 
Based on the supplement information in the record, this commit sets the
sample flags for conditional branch, function call, return.  It also
sets events in flags, such as mispredict, not taken, and in transaction.

Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Leo Yan <leo.yan@arm.com>
---
 tools/perf/util/arm-spe.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
diff mbox series

Patch

diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c
index 0e8e05c87fd7..daecf9e1017a 100644
--- a/tools/perf/util/arm-spe.c
+++ b/tools/perf/util/arm-spe.c
@@ -484,6 +484,26 @@  static void arm_spe__sample_flags(struct arm_spe_queue *speq)
 
 		if (record->type & ARM_SPE_BRANCH_MISS)
 			speq->flags |= PERF_IP_FLAG_BRANCH_MISS;
+
+		if (record->type & ARM_SPE_BRANCH_NOT_TAKEN)
+			speq->flags |= PERF_IP_FLAG_NOT_TAKEN;
+
+		if (record->type & ARM_SPE_IN_TXN)
+			speq->flags |= PERF_IP_FLAG_IN_TX;
+
+		if (record->op & ARM_SPE_OP_BR_COND)
+			speq->flags |= PERF_IP_FLAG_CONDITIONAL;
+
+		if (record->op & ARM_SPE_OP_BR_CR_BL)
+			speq->flags |= PERF_IP_FLAG_CALL;
+		else if (record->op & ARM_SPE_OP_BR_CR_RET)
+			speq->flags |= PERF_IP_FLAG_RETURN;
+		/*
+		 * Indirect branch instruction without link (e.g. BR),
+		 * take it as a function return.
+		 */
+		else if (record->op & ARM_SPE_OP_BR_INDIRECT)
+			speq->flags |= PERF_IP_FLAG_RETURN;
 	}
 }