linux-kernel - [PATCH 2/2] scripts/gdb: Add cmdline reader command

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Message-Id: <5c36d50ebbbd0378936c0c606f14fb9f70074282.1452509263.git.jan.kiszka@siemens.com>
Date:	Mon, 11 Jan 2016 11:47:43 +0100
From:	Jan Kiszka <jan.kiszka@...mens.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org,
	Kieran Bingham <kieran.bingham@...aro.org>
Subject: [PATCH 2/2] scripts/gdb: Add cmdline reader command

From: Kieran Bingham <kieran.bingham@...aro.org>

lx-cmdline  Report the Linux Commandline used in the current kernel

Signed-off-by: Kieran Bingham <kieran.bingham@...aro.org>
[Jan: remove blank line from help output and fix pep8 warning]
Signed-off-by: Jan Kiszka <jan.kiszka@...mens.com>
---
 scripts/gdb/linux/proc.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/scripts/gdb/linux/proc.py b/scripts/gdb/linux/proc.py
index 8a733dd..6e6709c 100644
--- a/scripts/gdb/linux/proc.py
+++ b/scripts/gdb/linux/proc.py
@@ -14,6 +14,19 @@
 import gdb
 
 
+class LxCmdLine(gdb.Command):
+    """ Report the Linux Commandline used in the current kernel.
+        Equivalent to cat /proc/cmdline on a running target"""
+
+    def __init__(self):
+        super(LxCmdLine, self).__init__("lx-cmdline", gdb.COMMAND_DATA)
+
+    def invoke(self, arg, from_tty):
+        gdb.write(gdb.parse_and_eval("saved_command_line").string() + "\n")
+
+LxCmdLine()
+
+
 class LxVersion(gdb.Command):
     """ Report the Linux Version of the current kernel.
         Equivalent to cat /proc/version on a running target"""
-- 
2.1.4