linux-kernel - [PATCH v5 0/3] reorganize trace_peobe

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Date:   Fri, 30 Dec 2022 14:33:04 +0800
From:   Song Chen <chensong_2000@....cn>
To:     rostedt@...dmis.org, mhiramat@...nel.org, arnd@...db.de
Cc:     linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
        linux-arch@...r.kernel.org, Song Chen <chensong_2000@....cn>
Subject: [PATCH v5 0/3] reorganize trace_peobe_tmpl.h

Hi,

In the first patchset, my intension was to remove trace_probe_tmpl.h,
just keep a unified process_fetch_insn and process_fetch_insn_bottom
in trace_probe.c for all *probes. is_uprobe was the most important
move to approach. If it was not accepted, the whole patchset couldn't
stand.

Then I change my goal to at least no warnings or errors when impelenting
a new feature based on trace probe if it includes trace_probe_tmpl.h by
provideing default behaviors. What's more, it also removes redundant
code in kprobe and eprobe.

---
v2:
1, reorganize patchset.

v3:
1, mark nokprobe_inline for get_event_field.
2, remove warnings reported from kernel test robot.
3, fix errors reported from kernel test robot.

v4:
1, reset changes in v3(2) and v3(3), they are not reasonable fix.
2, fixed errors by adding "#ifdef CONFIG_HAVE_REGS_AND_STACK_ACCESS_API".

v5:
1, move process_fetch_insn to trace_probe_tmpl.h in another patch.

Song Chen (3):
  kernel/trace: Introduce trace_probe_print_args and use it in *probes
  kernel/trace: Provide default impelentations defined in
    trace_probe_tmpl.h
  kernel/trace: extract common part in process_fetch_insn

 kernel/trace/trace_eprobe.c       | 83 ++++---------------------------
 kernel/trace/trace_events_synth.c |  6 +--
 kernel/trace/trace_kprobe.c       | 72 +++------------------------
 kernel/trace/trace_probe.c        | 27 ++++++++++
 kernel/trace/trace_probe.h        |  2 +
 kernel/trace/trace_probe_kernel.h | 30 ++++++++---
 kernel/trace/trace_probe_tmpl.h   | 48 ++++++++----------
 kernel/trace/trace_uprobe.c       | 13 ++---
 8 files changed, 96 insertions(+), 185 deletions(-)

-- 
2.25.1