From: Beau Belgrave <beaub@linux.microsoft.com>
To: rostedt@goodmis.org, mhiramat@kernel.org,
dcook@linux.microsoft.com, alanau@linux.microsoft.com
Cc: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org
Subject: [PATCH 0/2] tracing: Fix print_fields() and use best filter
Date: Wed, 19 Apr 2023 14:41:38 -0700 [thread overview]
Message-ID: <20230419214140.4158-1-beaub@linux.microsoft.com> (raw)
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
next reply other threads:[~2023-04-19 21:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-19 21:41 Beau Belgrave [this message]
2023-04-19 21:41 ` [PATCH 1/2] tracing/user_events: Set event filter_type from type Beau Belgrave
2023-04-19 21:41 ` [PATCH 2/2] tracing: Fix print_fields() for __dyn_loc/__rel_loc Beau Belgrave
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230419214140.4158-1-beaub@linux.microsoft.com \
--to=beaub@linux.microsoft.com \
--cc=alanau@linux.microsoft.com \
--cc=dcook@linux.microsoft.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-trace-kernel@vger.kernel.org \
--cc=mhiramat@kernel.org \
--cc=rostedt@goodmis.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).