The libtracefs logic that works with ftrace dynamic events is unified
and capsulated into a new set of dynamic events APIs. This change makes
the code more consistent and reusable. Also, adding future libtracefs
support for uprobes and eprobes dynamic events is simplified.
The existing library APIs for kprobes and synthetic events are
reimplemented using the new dynamic events helpers.
This patch sets depends on "[PATCH v2 0/4] Modifications of some 'hist' APIs":
https://lore.kernel.org/linux-trace-devel/20210924095702.151826-1-y.karadz@xxxxxxxxx/
Suggested-by: Yordan Karadzhov (VMware) <y.karadz@xxxxxxxxx>
v4 changes:
- Redefined the dynamic events enum, so the items can be used in a bitmask.
- Reimplement the logic for parsing dynamic event strings from ftrace files.
- Coding style fixes.
- Added more comments.
v3 changes:
- Exposed dynamic events API as official tracefs APIs.
- Removed kprobe specific APIs, that duplicate corresponding dynamic events
APIs.
- Updated unit tests and man pages with the new dynamic events APIs.
- Fixed typos, found by Yordan.
v2 changes:
- Removed triple pointer from the APIs.
- Reimplement dynamic events parsing using strtok_r instead of strchr.
- Coding style fixes.
Tzvetomir Stoyanov (VMware) (10):
libtracefs: New APIs for dynamic events
libtracefs: New APIs for kprobe allocation
libtracefs: Remove redundant kprobes APIs
libtracefs: Change tracefs_kprobe_info API
libtracefs: Reimplement kprobe raw APIs
libtracefs: Extend kprobes unit test
libtracefs: Rename tracefs_synth_init API
libtracefs: Use the internal dynamic events API when creating
synthetic events
libtracefs: Update kprobes man pages
libtracefs: Document dynamic events APIs
Documentation/libtracefs-dynevents.txt | 251 +++++++++
Documentation/libtracefs-kprobes.txt | 111 ++--
Documentation/libtracefs-synth.txt | 20 +-
Documentation/libtracefs-synth2.txt | 10 +-
Documentation/libtracefs.txt | 17 +
include/tracefs-local.h | 18 +
include/tracefs.h | 54 +-
src/Makefile | 1 +
src/tracefs-dynevents.c | 689 +++++++++++++++++++++++++
src/tracefs-hist.c | 125 +++--
src/tracefs-kprobes.c | 530 ++++++-------------
src/tracefs-sqlhist.c | 6 +-
utest/tracefs-utest.c | 412 +++++++++------
13 files changed, 1535 insertions(+), 709 deletions(-)
create mode 100644 Documentation/libtracefs-dynevents.txt
create mode 100644 src/tracefs-dynevents.c
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2.31.1
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