[RFC PATCH 1/9] tools/rv: Do not skip idle in trace

Gabriele Monaco
2025-04-04T08:46:02Z

Currently, the userspace RV tool skips trace events triggered by the RV
tool itself, this can be changed by passing the parameter -s, which sets
the variable config_my_pid to 0 (instead of the tool's PID).
The current condition for per-task monitors (config_has_id) does not
check that config_my_pid isn't 0 to skip. In case we pass -s, we show
events triggered by RV but don't show those triggered by idle (PID 0).

Fix the condition to account this scenario.

Fixes: 6d60f89691fc ("tools/rv: Add in-kernel monitor interface")
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
---
tools/verification/rv/src/in_kernel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/verification/rv/src/in_kernel.c b/tools/verification/rv/src/in_kernel.c
index c0dcee795c0de..72b03bae021cd 100644
--- a/tools/verification/rv/src/in_kernel.c
+++ b/tools/verification/rv/src/in_kernel.c
@@ -429,7 +429,7 @@ ikm_event_handler(struct trace_seq *s, struct tep_record *record,

tep_get_common_field_val(s, trace_event, "common_pid", record, &pid, 1);

- if (config_has_id && (config_my_pid == id))
+ if (config_my_pid && config_has_id && (config_my_pid == id))
return 0;
else if (config_my_pid && (config_my_pid == pid))
return 0;
--
2.49.0