linux-kernel - [PATCH -tip v8 0/4] kprobes related bugfix

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Date:   Sun, 30 Jul 2017 19:10:29 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     Francis Deslauriers <francis.deslauriers@...icios.com>,
        mathieu.desnoyers@...icios.com, Ingo Molnar <mingo@...hat.com>,
        "H . Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Ananth N Mavinakayanahalli <ananth@...ibm.com>,
        Anil S Keshavamurthy <anil.s.keshavamurthy@...el.com>,
        "David S . Miller" <davem@...emloft.net>,
        linux-kernel@...r.kernel.org,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Chris Zankel <chris@...kel.net>,
        Max Filippov <jcmvbkbc@...il.com>
Subject: [PATCH -tip v8 0/4] kprobes related bugfix

Hi,

Here are the series of patches to fix kprobes not
to optimize on the functions in irqentry text ([4/4]).
To check the irqentry text always, [3/4] makes irqentry
text section unconditional.

This involves some other cleanups on h8300, xtensa,
because those sources declare section start/end symbol
as single characters, but generic sections.h declares
it as character arrays. So it leads build errors if
we apply [3/4].

Thank you,

---

Masami Hiramatsu (4):
      h8300: mark _stext and _etext as char-arrays, not single char
      xtensa: mark _stext and _end as char-arrays, not single char
      irq: Make irqentry text section unconditional
      [BUGFIX] kprobes/x86: Do not jump-optimize kprobes on irq entry code


 arch/arm/include/asm/traps.h      |    7 -------
 arch/arm64/include/asm/traps.h    |    7 -------
 arch/h8300/include/asm/traps.h    |    6 +++---
 arch/x86/entry/entry_64.S         |    9 ++-------
 arch/x86/kernel/kprobes/opt.c     |    9 ++++++---
 arch/x86/kernel/unwind_frame.c    |    2 --
 arch/xtensa/kernel/setup.c        |    6 +++---
 include/asm-generic/sections.h    |    4 ++++
 include/asm-generic/vmlinux.lds.h |    8 --------
 include/linux/interrupt.h         |   14 +-------------
 10 files changed, 19 insertions(+), 53 deletions(-)

--
Masami Hiramatsu