linux-kernel - [RFC PATCH v2 21/26] early kprobes: add CONFIG_EARLY

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Message-ID: <1423743670-12943-1-git-send-email-wangnan0@huawei.com>
Date:	Thu, 12 Feb 2015 20:21:10 +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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CC:	<x86@...nel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <lizefan@...wei.com>
Subject: [RFC PATCH v2 21/26] early kprobes: add CONFIG_EARLY_KPROBES option.

Enable early kprobes in Kconfig.

Signed-off-by: Wang Nan <wangnan0@...wei.com>
---
 arch/Kconfig | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/Kconfig b/arch/Kconfig
index 05d7a8a..06dff4b 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -46,6 +46,18 @@ config KPROBES
 	  for kernel debugging, non-intrusive instrumentation and testing.
 	  If in doubt, say "N".
 
+config EARLY_KPROBES
+	depends on KPROBES && OPTPROBES
+	def_bool y
+
+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

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