ARCv3: Implemented ftrace #146
Closed
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
BrunoASMauricio
force-pushed
the
bruno_ftrace_arcv3
branch
from
d89d9f5 to
5ac747b
Compare
Implemented both CONFIG_FTRACE (function entry tracing) and CONFIG_FUNCTION_GRAPH_TRACER (function entry and exit tracing) for ARCv33 Signed-off-by: BrunoASMauricio <[email protected]>
BrunoASMauricio
force-pushed
the
bruno_ftrace_arcv3
branch
from
5ac747b to
9f972b6
Compare
abrodkin
approved these changes
Sep 24, 2023
kubeqz
reviewed
Nov 17, 2023
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
As part of the request in #144, implemented both
CONFIG_FTRACE(function entry tracing) andCONFIG_FUNCTION_GRAPH_TRACER(function entry and exit tracing) for ARCv3.To use this feature, we need to first enable it in
menuconfig(activate theFTRACEandFUNCTION_GRAPH_TRACERoptions)Then, we mount the debugfs filesystem:
Select the tracer we want. For full tracing we have:
And for entry only tracing we have:
Then to see the trace, read from the '/sys/kernel/tracing/trace' file