From: Wang Nan <wangnan0@huawei.com>
To: Russell King <linux@arm.linux.org.uk>,
"David A. Long" <dave.long@linaro.org>,
Jon Medhurst <tixy@linaro.org>,
Taras Kondratiuk <taras.kondratiuk@linaro.org>,
Ben Dooks <ben.dooks@codethink.co.uk>,
"Ananth N Mavinakayanahalli" <ananth@in.ibm.com>,
Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>,
"David S. Miller" <davem@davemloft.net>,
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
Will Deacon <will.deacon@arm.com>
Cc: Wang Nan <wangnan0@huawei.com>, Pei Feiyue <peifeiyue@huawei.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH v5 0/3] kprobes: arm: enable OPTPROBES for ARM 32
Date: Wed, 27 Aug 2014 21:02:29 +0800 [thread overview]
Message-ID: <1409144552-12751-1-git-send-email-wangnan0@huawei.com> (raw)
Following 3 patches are the 5th version of kprobe optimization for arm.
The main difference is disallowing optimize stack store instructions,
such as "str r0, [sp]" and "push {r0 - r4}".
The first patch improve arm instruction decoder to detect such
instructions, following 2 patches make it unoptimizable.
Wang Nan (3):
ARM: probes: check stack operation when decoding
kprobes: copy ainsn after alloc aggr kprobe
kprobes: arm: enable OPTPROBES for ARM 32
arch/arm/Kconfig | 1 +
arch/arm/include/asm/kprobes.h | 28 +++++
arch/arm/include/asm/probes.h | 1 +
arch/arm/kernel/Makefile | 3 +-
arch/arm/kernel/kprobes-common.c | 4 +
arch/arm/kernel/kprobes-opt.c | 259 +++++++++++++++++++++++++++++++++++++++
arch/arm/kernel/probes-arm.c | 4 +-
arch/arm/kernel/probes-thumb.c | 6 +-
arch/arm/kernel/probes.c | 20 ++-
arch/arm/kernel/probes.h | 6 +
kernel/kprobes.c | 7 +-
11 files changed, 330 insertions(+), 9 deletions(-)
create mode 100644 arch/arm/kernel/kprobes-opt.c
Cc: Russell King <linux@arm.linux.org.uk>
Cc: "David A. Long" <dave.long@linaro.org>
Cc: Jon Medhurst <tixy@linaro.org>
Cc: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Cc: Ben Dooks <ben.dooks@codethink.co.uk>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Will Deacon <will.deacon@arm.com>
--
1.8.4
next reply other threads:[~2014-08-27 13:15 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-27 13:02 Wang Nan [this message]
2014-08-27 13:02 ` [PATCH v5 1/3] ARM: probes: check stack operation when decoding Wang Nan
2014-08-28 9:51 ` Masami Hiramatsu
2014-08-28 10:20 ` Russell King - ARM Linux
2014-08-28 10:24 ` Will Deacon
2014-08-29 8:47 ` Jon Medhurst (Tixy)
2014-08-30 1:28 ` Wang Nan
2014-09-01 17:29 ` Jon Medhurst (Tixy)
2014-08-27 13:02 ` [PATCH v5 2/3] kprobes: copy ainsn after alloc aggr kprobe Wang Nan
2014-08-28 9:39 ` Masami Hiramatsu
2014-08-28 11:07 ` Wang Nan
2014-08-27 13:02 ` [PATCH v5 3/3] kprobes: arm: enable OPTPROBES for ARM 32 Wang Nan
2014-08-28 10:20 ` Masami Hiramatsu
2014-09-02 13:49 ` Jon Medhurst (Tixy)
2014-09-03 10:18 ` Masami Hiramatsu
2014-09-03 10:30 ` Will Deacon
2014-09-04 10:40 ` Jon Medhurst (Tixy)
2014-09-04 10:52 ` Will Deacon
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