[PATCH 0/2] tracing: Fix print_fields() and use best filter
From: Beau Belgrave <hidden>
Date: 2023-04-19 21:41:54
Also in:
lkml
From: Beau Belgrave <hidden>
Date: 2023-04-19 21:41:54
Also in:
lkml
When using user_events along with the new print_fields() functionality a few issues were discovered. When printing out fields, the __rel_loc field types were printing out the wrong array values. Also, user_events wasn't setting the best filter type, so __rel_loc data was marked as FILTER_OTHER vs FILTER_RDYN_STRING when chars were used. This resulted in strings being printed out as array of bytes vs a string. After applying this series user_events will output strings correctly for __rel_loc via /sys/kernel/tracing/trace outputs. All events that utilize print_fields() will print the correct array/string for __data_loc and __rel_loc data, when it's enabled. Beau Belgrave (2): tracing/user_events: Set event filter_type from type tracing: Fix print_fields() for __dyn_loc/__rel_loc kernel/trace/trace_events_user.c | 3 +++ kernel/trace/trace_output.c | 10 ++++++---- 2 files changed, 9 insertions(+), 4 deletions(-) base-commit: 88fe1ec75fcb296579e05eaf3807da3ee83137e4 -- 2.25.1