Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933495Ab2K0KME (ORCPT ); Tue, 27 Nov 2012 05:12:04 -0500 Received: from thoth.sbs.de ([192.35.17.2]:17459 "EHLO thoth.sbs.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933336Ab2K0KMB (ORCPT ); Tue, 27 Nov 2012 05:12:01 -0500 From: Jan Kiszka To: Andrew Morton , linux-kernel@vger.kernel.org Cc: Jason Wessel , kgdb-bugreport@lists.sourceforge.net, Andi Kleen , Tom Tromey Subject: [PATCH v3 05/13] scripts/gdb: Add read_u16/32/64 helpers Date: Tue, 27 Nov 2012 11:11:36 +0100 Message-Id: <17a31726a26035e8e984f8370551e3ed09fe90ba.1354011091.git.jan.kiszka@siemens.com> X-Mailer: git-send-email 1.7.3.4 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 Content-Length: 1451 Lines: 43 Add helpers for reading integers from target memory buffers. Required when caching the memory access is more efficient than reading individual values via gdb. Signed-off-by: Jan Kiszka --- scripts/gdb/utils.py | 18 ++++++++++++++++++ 1 files changed, 18 insertions(+), 0 deletions(-) diff --git a/scripts/gdb/utils.py b/scripts/gdb/utils.py index e3191c5..96f5e1c 100644 --- a/scripts/gdb/utils.py +++ b/scripts/gdb/utils.py @@ -73,3 +73,21 @@ def get_target_endianness(): else: raise gdb.GdgError("unknown endianness '%s'" % endian) return target_endianness + +def read_u16(buffer): + if get_target_endianness() == LITTLE_ENDIAN: + return ord(buffer[0]) + (ord(buffer[1]) << 8) + else: + return ord(buffer[1]) + (ord(buffer[0]) << 8) + +def read_u32(buffer): + if get_target_endianness() == LITTLE_ENDIAN: + return read_u16(buffer[0:2]) + (read_u16(buffer[2:4]) << 16) + else: + return read_u16(buffer[2:4]) + (read_u16(buffer[0:2]) << 16) + +def read_u64(buffer): + if get_target_endianness() == LITTLE_ENDIAN: + return read_u32(buffer[0:4]) + (read_u32(buffer[4:8]) << 32) + else: + return read_u32(buffer[4:8]) + (read_u32(buffer[0:4]) << 32) -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/