From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755722AbbA2Gxy (ORCPT ); Thu, 29 Jan 2015 01:53:54 -0500 Received: from david.siemens.de ([192.35.17.14]:58352 "EHLO david.siemens.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754659AbbA2Gxu (ORCPT ); Thu, 29 Jan 2015 01:53:50 -0500 From: Jan Kiszka To: Andrew Morton , linux-kernel@vger.kernel.org Cc: Thomas Gleixner , Jason Wessel , kgdb-bugreport@lists.sourceforge.net, Andi Kleen , Tom Tromey , Ben Widawsky , Borislav Petkov Subject: [PATCH v11 09/28] scripts/gdb: Add get_target_endianness helper Date: Thu, 29 Jan 2015 07:46:28 +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 Parse the target endianness from the output of "show endian" and cache the result to return it via the new helper get_target_endiannes. We will need it for reading integers from buffers that contain target memory. Signed-off-by: Jan Kiszka --- scripts/gdb/linux/utils.py | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/scripts/gdb/linux/utils.py b/scripts/gdb/linux/utils.py index c9d705b..10a227b 100644 --- a/scripts/gdb/linux/utils.py +++ b/scripts/gdb/linux/utils.py @@ -67,3 +67,21 @@ Note that TYPE and ELEMENT have to be quoted as strings.""" elementname.string()) ContainerOf() + + +BIG_ENDIAN = 0 +LITTLE_ENDIAN = 1 +target_endianness = None + + +def get_target_endianness(): + global target_endianness + if target_endianness is None: + endian = gdb.execute("show endian", to_string=True) + if "little endian" in endian: + target_endianness = LITTLE_ENDIAN + elif "big endian" in endian: + target_endianness = BIG_ENDIAN + else: + raise gdb.GdgError("unknown endianness '{0}'".format(endian)) + return target_endianness -- 2.1.4