linux-kernel - [PATCH v6 0/9] tracing: Improbe BTF support on probe events

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Message-Id: <169272153143.160970.15584603734373446082.stgit@devnote2>
Date:   Wed, 23 Aug 2023 01:25:31 +0900
From:   "Masami Hiramatsu (Google)" <mhiramat@...nel.org>
To:     linux-trace-kernel@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
        mhiramat@...nel.org, Martin KaFai Lau <martin.lau@...ux.dev>,
        bpf@...r.kernel.org, Sven Schnelle <svens@...ux.ibm.com>,
        Alexei Starovoitov <ast@...nel.org>
Subject: [PATCH v6 0/9] tracing: Improbe BTF support on probe events

Hi,

Here is the 6th version of series to improve the BTF support on probe events.
The previous series is here:

https://lore.kernel.org/all/169137686814.271367.11218568219311636206.stgit@devnote2/

This version is adding Steve's Ack and allocate the struct btf_anon_stack
from heap.

This series can be applied on top of "probes/core" branch of
https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git/

You can also get this series from:

git://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git topic/fprobe-event-ext

Thank you,

---

Masami Hiramatsu (Google) (9):
      tracing/probes: Support BTF argument on module functions
      tracing/probes: Move finding func-proto API and getting func-param API to trace_btf
      tracing/probes: Add a function to search a member of a struct/union
      tracing/probes: Support BTF based data structure field access
      tracing/probes: Support BTF field access from $retval
      tracing/probes: Add string type check with BTF
      tracing/fprobe-event: Assume fprobe is a return event by $retval
      selftests/ftrace: Add BTF fields access testcases
      Documentation: tracing: Update fprobe event example with BTF field


 Documentation/trace/fprobetrace.rst                |   64 ++-
 include/linux/btf.h                                |    1 
 kernel/bpf/btf.c                                   |    2 
 kernel/trace/Makefile                              |    1 
 kernel/trace/trace.c                               |    3 
 kernel/trace/trace_btf.c                           |  122 +++++
 kernel/trace/trace_btf.h                           |   11 
 kernel/trace/trace_eprobe.c                        |    4 
 kernel/trace/trace_fprobe.c                        |   59 ++
 kernel/trace/trace_kprobe.c                        |    1 
 kernel/trace/trace_probe.c                         |  499 +++++++++++++++-----
 kernel/trace/trace_probe.h                         |   27 +
 kernel/trace/trace_uprobe.c                        |    1 
 .../ftrace/test.d/dynevent/add_remove_btfarg.tc    |   20 +
 .../ftrace/test.d/dynevent/fprobe_syntax_errors.tc |   10 
 15 files changed, 650 insertions(+), 175 deletions(-)
 create mode 100644 kernel/trace/trace_btf.c
 create mode 100644 kernel/trace/trace_btf.h

--
Masami Hiramatsu (Google) <mhiramat@...nel.org>