linux-kernel - [PATCH v4 0/6] powerpc: add support for KPROBES_ON

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Message-Id: <cover.1492605029.git.naveen.n.rao@linux.vnet.ibm.com>
Date:   Wed, 19 Apr 2017 18:22:22 +0530
From:   "Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     Ananth N Mavinakayanahalli <ananth@...ux.vnet.ibm.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Ingo Molnar <mingo@...nel.org>, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v4 0/6] powerpc: add support for KPROBES_ON_FTRACE

v3:
https://www.mail-archive.com/linuxppc-dev@lists.ozlabs.org/msg116800.html

For v4, patch 5/6 is new and has been moved into this series. It has
also been updated to use strlcat() instead of strncat(). No other
changes.

Also, though patch 3/6 is generic, it needs to be carried in this
series as we crash on powerpc without that patch.


- Naveen


Masami Hiramatsu (1):
  kprobes: Skip preparing optprobe if the probe is ftrace-based

Naveen N. Rao (5):
  powerpc: ftrace: minor cleanup
  powerpc: ftrace: restore LR from pt_regs
  powerpc: kprobes: add support for KPROBES_ON_FTRACE
  powerpc: introduce a new helper to obtain function entry points
  powerpc: kprobes: prefer ftrace when probing function entry

 .../debug/kprobes-on-ftrace/arch-support.txt       |   2 +-
 arch/powerpc/Kconfig                               |   1 +
 arch/powerpc/include/asm/code-patching.h           |  37 ++++++++
 arch/powerpc/include/asm/kprobes.h                 |  10 ++
 arch/powerpc/kernel/Makefile                       |   3 +
 arch/powerpc/kernel/entry_64.S                     |  19 ++--
 arch/powerpc/kernel/kprobes-ftrace.c               | 104 +++++++++++++++++++++
 arch/powerpc/kernel/kprobes.c                      |  25 ++++-
 arch/powerpc/kernel/optprobes.c                    |   6 +-
 kernel/kprobes.c                                   |  11 ++-
 10 files changed, 199 insertions(+), 19 deletions(-)
 create mode 100644 arch/powerpc/kernel/kprobes-ftrace.c

-- 
2.12.1