Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754329Ab2JCLYt (ORCPT ); Wed, 3 Oct 2012 07:24:49 -0400 Received: from mout.web.de ([212.227.15.3]:58612 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751739Ab2JCLWA (ORCPT ); Wed, 3 Oct 2012 07:22:00 -0400 From: Jan Kiszka To: linux-kernel@vger.kernel.org Cc: Jason Wessel , kgdb-bugreport@lists.sourceforge.net Subject: [PATCH 05/13] scripts/gdb: Add read_u16/32/64 helpers Date: Wed, 3 Oct 2012 13:21:36 +0200 Message-Id: <886cf0d525fb580867f2172ee485d16a68550cff.1349263293.git.jan.kiszka@web.de> X-Mailer: git-send-email 1.7.3.4 In-Reply-To: References: In-Reply-To: References: X-Provags-ID: V02:K0:P2qGb/nLlJwQNEfVpaYCv2QzfxqkEdU5WDzf1wtVH8l yn4Pv5FlOS+yPjEzB1nAzJYIlEukCcSAnXcGkZ3ewje8YNlaDU dBE5FiWjr23xjBakq2vwxFNtycwy2j4LwL2HE89shBiky7Ow/6 ZFzh9DLkSGzt4jPHQv0aIHjvY3AN7BM7rXXYpLOtGgyH2UyHd2 BC8N+3FfMGQ48hHm8+QAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1494 Lines: 45 From: Jan Kiszka 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 40356d9..17762c5 100644 --- a/scripts/gdb/utils.py +++ b/scripts/gdb/utils.py @@ -70,3 +70,21 @@ 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/