linux-kernel - [RFC PATCH 06/11] kprobes: makes kprobes

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Date:	Wed, 7 Jan 2015 15:35:46 +0800
From:	Wang Nan <wangnan0@...wei.com>
To:	<linux@....linux.org.uk>, <mingo@...hat.com>, <x86@...nel.org>,
	<masami.hiramatsu.pt@...achi.com>,
	<anil.s.keshavamurthy@...el.com>, <davem@...emloft.net>,
	<ananth@...ibm.com>, <dave.long@...aro.org>, <tixy@...aro.org>
CC:	<lizefan@...wei.com>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>
Subject: [RFC PATCH 06/11] kprobes: makes kprobes_initialized globally visable.

Following patches will enable kprobe registering very early, before
kprobe system initialized. Arch code can use it to do special treatments
for such kprobes.

Signed-off-by: Wang Nan <wangnan0@...wei.com>
---
 include/linux/kprobes.h | 2 ++
 kernel/kprobes.c        | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index fa0de88..b0265f9 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -50,6 +50,8 @@
 #define KPROBE_REENTER		0x00000004
 #define KPROBE_HIT_SSDONE	0x00000008
 
+extern int kprobes_initialized;
+
 #else /* CONFIG_KPROBES */
 typedef int kprobe_opcode_t;
 struct arch_specific_insn {
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 9fbe0c3..4591cae 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -67,7 +67,7 @@
 	addr = ((kprobe_opcode_t *)(kallsyms_lookup_name(name)))
 #endif
 
-static int kprobes_initialized;
+int kprobes_initialized;
 static struct hlist_head kprobe_table[KPROBE_TABLE_SIZE];
 static struct hlist_head kretprobe_inst_table[KPROBE_TABLE_SIZE];
 
-- 
1.8.4

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