Messages in this thread | | | From | Masami Hiramatsu <> | Subject | [PATCH -tip 0/8] perf-probe updates | Date | Tue, 08 Dec 2009 17:02:32 -0500 |
| |
Hi Ingo,
I made several usability updates and added --del option for perf-probe. I think most of basic functions are implemented. I'm planning to support checking build-id next, because it can prevent users to use old vmlinux for debuginfo analysis.
Here are the todo list I have (most of them had been requested on LKML). I'd like to share this list with other developers who are interested in.
Short-term TODOs: - Support checking kernel Build-ID
Long-term TODOs (future features): - Support --line option to show which lines user can probe - Support lazy string matching(glob?) for selecting probing line - Support sys_perf_counter_open (for non-root users) - Support tracing static variables (non global) - Support variable types from debuginfo (e.g. char, int, ...) - Support fields of data structures (var->field) - Support array (var[N]) - Support dynamic array-indexing (var[var2]) - Support string/dynamic arrays (*var, var[N..M]) - Support force type-casting ((type)var) - Support the type of return value
Miscs: - Support glob expression with --del option (like --del "*") - Support event/group name specifying for new events - Better support for probes on modules - Symbol search by libelf/kallsyms - Move onto libdw/libdwfl - Storing file name/line number information in the kernel for listing events
Thank you,
---
Masami Hiramatsu (8): perf probe: Update perf-probe document perf probe: Support --del option trace-kprobe: Support delete probe syntax perf probe: Support vmlinux on cwd by default perf probe: Remove event suffix number _0 perf probe: Fix add-probe command syntax without --add option perf probe: Change probe-added message more user-friendly perf probe: Change event list format
kernel/trace/trace_kprobe.c | 37 +++++++-- tools/perf/Documentation/perf-probe.txt | 21 ++++- tools/perf/builtin-probe.c | 76 ++++++++++++++++--- tools/perf/util/probe-event.c | 122 ++++++++++++++++++++++++++++--- tools/perf/util/probe-event.h | 1 5 files changed, 217 insertions(+), 40 deletions(-)
-- Masami Hiramatsu
Software Engineer Hitachi Computer Products (America), Inc. Software Solutions Division e-mail: mhiramat@redhat.com
| |