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Message-ID: <1423805941-61407-1-git-send-email-wangnan0@huawei.com>
Date: Fri, 13 Feb 2015 13:39:01 +0800
From: Wang Nan <wangnan0@...wei.com>
To: <linux@....linux.org.uk>, <tglx@...utronix.de>, <mingo@...hat.com>,
<hpa@...or.com>, <rostedt@...dmis.org>, <ananth@...ibm.com>,
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<masami.hiramatsu.pt@...achi.com>, <luto@...capital.net>,
<keescook@...omium.org>, <oleg@...hat.com>, <wangnan0@...wei.com>,
<dave.long@...aro.org>, <tixy@...aro.org>, <nico@...aro.org>,
<yalin.wang2010@...il.com>, <catalin.marinas@....com>,
<Yalin.Wang@...ymobile.com>, <mark.rutland@....com>,
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CC: <x86@...nel.org>, <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>, <lizefan@...wei.com>
Subject: [RFC PATCH v3 00/26] Early kprobe: enable kprobes at very early booting stage.
I fell very sorry for people who reviewed my v2 patch series yesterday
at https://lkml.org/lkml/2015/2/12/234 because I didn't provide enough
information in commit log. This v3 patch series add those missing
commit messages. There are also 2 small fix based on v2:
1. Fixes ftrace_sort_mcount_area. Original patch doesn't work for module.
2. Wraps setting of kprobes_initialized in stop_machine() context.
Wang Nan (26):
kprobes: set kprobes_all_disarmed earlier to enable re-optimization.
kprobes: makes kprobes/enabled works correctly for optimized kprobes.
kprobes: x86: mark 2 bytes NOP as boostable.
ftrace: don't update record flags if code modification fail.
ftrace/x86: Ensure rec->flags no change when failure occures.
ftrace: sort ftrace entries earlier.
ftrace: allow search ftrace addr before ftrace fully inited.
ftrace: enable make ftrace nop before ftrace_init().
ftrace: allow fixing code update failure by notifier chain.
ftrace: x86: try to fix ftrace when ftrace_replace_code.
early kprobes: introduce kprobe_is_early for futher early kprobe use.
early kprobes: Add an KPROBE_FLAG_EARLY for early kprobe.
early kprobes: ARM: directly modify code.
early kprobes: ARM: introduce early kprobes related code area.
early kprobes: x86: directly modify code.
early kprobes: x86: introduce early kprobes related code area.
early kprobes: introduces macros for allocing early kprobe resources.
early kprobes: allows __alloc_insn_slot() from early kprobes slots.
early kprobes: perhibit probing at early kprobe reserved area.
early kprobes: core logic of eraly kprobes.
early kprobes: add CONFIG_EARLY_KPROBES option.
early kprobes: introduce arch_fix_ftrace_early_kprobe().
early kprobes: x86: arch_restore_optimized_kprobe().
early kprobes: core logic to support early kprobe on ftrace.
early kprobes: introduce kconfig option to support early kprobe on
ftrace.
kprobes: enable 'ekprobe=' cmdline option for early kprobes.
arch/Kconfig | 15 ++
arch/arm/include/asm/kprobes.h | 31 ++-
arch/arm/kernel/vmlinux.lds.S | 2 +
arch/arm/probes/kprobes/opt-arm.c | 12 +-
arch/x86/include/asm/insn.h | 7 +-
arch/x86/include/asm/kprobes.h | 47 +++-
arch/x86/kernel/ftrace.c | 23 +-
arch/x86/kernel/kprobes/core.c | 2 +-
arch/x86/kernel/kprobes/opt.c | 69 +++++-
arch/x86/kernel/vmlinux.lds.S | 2 +
include/linux/ftrace.h | 37 +++
include/linux/kprobes.h | 132 +++++++++++
init/main.c | 1 +
kernel/kprobes.c | 479 +++++++++++++++++++++++++++++++++++++-
kernel/trace/ftrace.c | 157 +++++++++++--
15 files changed, 969 insertions(+), 47 deletions(-)
--
1.8.4
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