linux-kernel - [PATCH 0/4] [GIT PULL] tracing, kprobes: Fix kprobe symbol offset (for minus)

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Date:   Fri, 23 Mar 2018 18:13:11 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     linux-kernel@...r.kernel.org
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Ingo Molnar <mingo@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Masami Hiramatsu <mhiramat@...nel.org>
Subject: [PATCH 0/4] [GIT PULL] tracing, kprobes: Fix kprobe symbol offset (for minus)


Linus,

The documentation for kprobe events says that symbol offets can
take both a + and - sign to get to before and after the symbol address.
But in actuality, the code does not support the minus. This fixes
that issue, and adds a few more selftests to kprobe events.

Please pull the latest trace-v4.16-rc4 tree, which can be found at:


  git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git
trace-v4.16-rc4

Tag SHA1: d92df88947baacdf2ebfe80871fb1c6f9211aa80
Head SHA1: dfa453bc90eca0febff33c8d292a656e53702158


Masami Hiramatsu (4):
      tracing: probeevent: Fix to support minus offset from symbol
      selftests: ftrace: Add probe event argument syntax testcase
      selftests: ftrace: Add a testcase for string type with kprobe_event
      selftests: ftrace: Add a testcase for probepoint

----
 kernel/trace/trace_kprobe.c                        |  4 +-
 kernel/trace/trace_probe.c                         |  8 +-
 kernel/trace/trace_probe.h                         |  2 +-
 .../ftrace/test.d/kprobe/kprobe_args_string.tc     | 46 ++++++++++
 .../ftrace/test.d/kprobe/kprobe_args_syntax.tc     | 97 ++++++++++++++++++++++
 .../selftests/ftrace/test.d/kprobe/probepoint.tc   | 43 ++++++++++
 6 files changed, 192 insertions(+), 8 deletions(-)
 create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc
 create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc
 create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/probepoint.tc