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From: wangnan0@huawei.com (Wang Nan)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH v3 21/26] early kprobes: add CONFIG_EARLY_KPROBES option.
Date: Fri, 13 Feb 2015 13:41:08 +0800	[thread overview]
Message-ID: <1423806068-62359-1-git-send-email-wangnan0@huawei.com> (raw)
In-Reply-To: <1423805941-61407-1-git-send-email-wangnan0@huawei.com>

Enable early kprobes in Kconfig.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
---
 arch/Kconfig | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/Kconfig b/arch/Kconfig
index 05d7a8a..32e9f4a 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -46,6 +46,21 @@ config KPROBES
 	  for kernel debugging, non-intrusive instrumentation and testing.
 	  If in doubt, say "N".
 
+config EARLY_KPROBES
+	bool "Enable kprobes at very early booting stage"
+	depends on KPROBES && OPTPROBES
+	def_bool y
+	help
+	  Enable kprobe at very early booting stage.
+
+config NR_EARLY_KPROBES_SLOTS
+	int "Number of possible early kprobes"
+	range 1 64
+	default 16
+	depends on EARLY_KPROBES
+	help
+	  Number of early kprobes slots.
+
 config JUMP_LABEL
        bool "Optimize very unlikely/likely branches"
        depends on HAVE_ARCH_JUMP_LABEL
-- 
1.8.4

  parent reply	other threads:[~2015-02-13  5:41 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-13  5:39 [RFC PATCH v3 00/26] Early kprobe: enable kprobes at very early booting stage Wang Nan
2015-02-13  5:40 ` [RFC PATCH v3 01/26] kprobes: set kprobes_all_disarmed earlier to enable re-optimization Wang Nan
2015-02-13  5:40 ` [RFC PATCH v3 02/26] kprobes: makes kprobes/enabled works correctly for optimized kprobes Wang Nan
2015-02-13  5:40 ` [RFC PATCH v3 03/26] kprobes: x86: mark 2 bytes NOP as boostable Wang Nan
2015-02-13  5:40 ` [RFC PATCH v3 04/26] ftrace: don't update record flags if code modification fail Wang Nan
2015-02-13  5:40 ` [RFC PATCH v3 05/26] ftrace/x86: Ensure rec->flags no change when failure occures Wang Nan
2015-02-13  5:40 ` [RFC PATCH v3 06/26] ftrace: sort ftrace entries earlier Wang Nan
2015-02-13  5:40 ` [RFC PATCH v3 07/26] ftrace: allow search ftrace addr before ftrace fully inited Wang Nan
2015-02-13  5:40 ` [RFC PATCH v3 08/26] ftrace: enable make ftrace nop before ftrace_init() Wang Nan
2015-02-13  5:40 ` [RFC PATCH v3 09/26] ftrace: allow fixing code update failure by notifier chain Wang Nan
2015-02-13  5:40 ` [RFC PATCH v3 10/26] ftrace: x86: try to fix ftrace when ftrace_replace_code Wang Nan
2015-02-13  5:40 ` [RFC PATCH v3 11/26] early kprobes: introduce kprobe_is_early for futher early kprobe use Wang Nan
2015-02-13  5:40 ` [RFC PATCH v3 12/26] early kprobes: Add an KPROBE_FLAG_EARLY for early kprobe Wang Nan
2015-02-13  5:40 ` [RFC PATCH v3 13/26] early kprobes: ARM: directly modify code Wang Nan
2015-02-13  5:40 ` [RFC PATCH v3 14/26] early kprobes: ARM: introduce early kprobes related code area Wang Nan
2015-02-13  5:40 ` [RFC PATCH v3 15/26] early kprobes: x86: directly modify code Wang Nan
2015-02-20  4:00   ` Masami Hiramatsu
2015-02-13  5:40 ` [RFC PATCH v3 16/26] early kprobes: x86: introduce early kprobes related code area Wang Nan
2015-02-13  5:40 ` [RFC PATCH v3 17/26] early kprobes: introduces macros for allocing early kprobe resources Wang Nan
2015-02-13  5:41 ` [RFC PATCH v3 18/26] early kprobes: allows __alloc_insn_slot() from early kprobes slots Wang Nan
2015-02-13  5:41 ` [RFC PATCH v3 19/26] early kprobes: perhibit probing at early kprobe reserved area Wang Nan
2015-02-13  5:41 ` [RFC PATCH v3 20/26] early kprobes: core logic of eraly kprobes Wang Nan
2015-02-13  5:41 ` Wang Nan [this message]
2015-02-13  5:41 ` [RFC PATCH v3 22/26] early kprobes: introduce arch_fix_ftrace_early_kprobe() Wang Nan
2015-02-13  5:41 ` [RFC PATCH v3 23/26] early kprobes: x86: arch_restore_optimized_kprobe() Wang Nan
2015-02-13  5:41 ` [RFC PATCH v3 24/26] early kprobes: core logic to support early kprobe on ftrace Wang Nan
2015-02-13  5:41 ` [RFC PATCH v3 25/26] early kprobes: introduce kconfig option " Wang Nan
2015-02-13  5:41 ` [RFC PATCH v3 26/26] kprobes: enable 'ekprobe=' cmdline option for early kprobes Wang Nan
2015-02-20  3:59 ` [RFC PATCH v3 00/26] Early kprobe: enable kprobes at very early booting stage Masami Hiramatsu
2015-02-25 11:11   ` Wang Nan
2015-02-25 11:46     ` Wang Nan

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