From: Huang Shijie <shijie.huang@arm.com>
To: <akpm@linux-foundation.org>
Cc: <pmladek@suse.com>, <linux-kernel@vger.kernel.org>,
<steve.capper@arm.com>, <nd@arm.com>,
Huang Shijie <shijie.huang@arm.com>
Subject: [PATCH 1/2] kprobes: add a new module parameter
Date: Wed, 18 May 2016 09:36:56 +0800 [thread overview]
Message-ID: <1463535417-29637-1-git-send-email-shijie.huang@arm.com> (raw)
This patch adds a new module parameter which can be used as the
symbol name. With this parameter, the module becomes more flexable.
Signed-off-by: Huang Shijie <shijie.huang@arm.com>
---
samples/kprobes/kprobe_example.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/samples/kprobes/kprobe_example.c b/samples/kprobes/kprobe_example.c
index 727eb21..2bb190d 100644
--- a/samples/kprobes/kprobe_example.c
+++ b/samples/kprobes/kprobe_example.c
@@ -14,9 +14,13 @@
#include <linux/module.h>
#include <linux/kprobes.h>
+#define MAX_SYMBOL_LEN 64
+static char symbol[MAX_SYMBOL_LEN] = "_do_fork";
+module_param_string(symbol, symbol, sizeof(symbol), 0644);
+
/* For each probe you need to allocate a kprobe structure */
static struct kprobe kp = {
- .symbol_name = "_do_fork",
+ .symbol_name = symbol,
};
/* kprobe pre_handler: called just before the probed instruction is executed */
--
2.5.5
next reply other threads:[~2016-05-18 1:37 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-18 1:36 Huang Shijie [this message]
2016-05-18 1:36 ` [PATCH 2/2] kprobes: print out the symbol name for the hooks Huang Shijie
2016-05-18 21:27 ` [PATCH 1/2] kprobes: add a new module parameter Andrew Morton
2016-05-19 1:40 ` [PATCH v2] " Huang Shijie
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