From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759865AbbA3H3t (ORCPT ); Fri, 30 Jan 2015 02:29:49 -0500 Received: from goliath.siemens.de ([192.35.17.28]:34238 "EHLO goliath.siemens.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754859AbbA3HZe (ORCPT ); Fri, 30 Jan 2015 02:25:34 -0500 From: Jan Kiszka To: Andrew Morton , linux-kernel@vger.kernel.org Cc: Thomas Gleixner , Jason Wessel , kgdb-bugreport@lists.sourceforge.net, Andi Kleen , Ben Widawsky , Borislav Petkov Subject: [PATCH v12 18/28] scripts/gdb: Add lx_current convenience function Date: Fri, 30 Jan 2015 08:24:47 +0100 Message-Id: X-Mailer: git-send-email 2.1.4 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a shorthand for *$lx_per_cpu("current_task"), i.e. a convenience function to retrieve the currently running task of the active context. Signed-off-by: Jan Kiszka --- scripts/gdb/linux/cpus.py | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/scripts/gdb/linux/cpus.py b/scripts/gdb/linux/cpus.py index 18337e0..b683da9 100644 --- a/scripts/gdb/linux/cpus.py +++ b/scripts/gdb/linux/cpus.py @@ -66,3 +66,20 @@ Note that VAR has to be quoted as string.""" PerCpu() + + +class LxCurrentFunc(gdb.Function): + """Return current task. + +$lx_current([CPU]): Return the per-cpu task variable for the given CPU +number. If CPU is omitted, the CPU of the current context is used.""" + + def __init__(self): + super(LxCurrentFunc, self).__init__("lx_current") + + def invoke(self, cpu=-1): + var_ptr = gdb.parse_and_eval("¤t_task") + return per_cpu(var_ptr, cpu).dereference() + + +LxCurrentFunc() -- 2.1.4