[PATCH 0/3] rtla: fix cgroup and trace options parsing

From: Ivan Pravdin
Date: Tue Aug 12 2025 - 12:36:27 EST


This series fixes 3 issue in rtla timerlat and osnoise parsing.

1. Fix buffer overflow when using --on-threshold option. Currently
passing `--on-threshold trace` causes rtla timerlat to segfault.
First patch addresses this issue.

2. Make -C/--cgroup option more user-friendly. Currently rtla timerlat
and osnoise parses does not allow to specify tracer's threads cgroup
name as `-C [cgroup]` or `--cgroup [cgroup]`. Second patch fixes this by
allowing users to specify cgroup in the aforementioned manner.

3. When specifying `-t/--trace` before `-a/--auto`, trace filename is
override to default <osnoise|timerlat>_trace.txt. For example, when
running rtla as

`rtla timerlat top -t custom_file.txt -a 100`

when the threshold is reached, timerlat_trace.txt file is created
instead of specified custom_file.txt. Third patch addresses this issue.

Ivan Pravdin (3):
rtla: fix buffer overflow in actions_parse
rtla: fix -C/--cgroup interface
rtla: fix -a overriding -t argument

Documentation/tools/rtla/common_options.rst | 2 +-
tools/tracing/rtla/src/actions.c | 2 +-
tools/tracing/rtla/src/osnoise_hist.c | 24 ++++++++------
tools/tracing/rtla/src/osnoise_top.c | 24 ++++++++------
tools/tracing/rtla/src/timerlat_hist.c | 24 ++++++++------
tools/tracing/rtla/src/timerlat_top.c | 36 +++++++++------------
6 files changed, 62 insertions(+), 50 deletions(-)

--
2.48.1