Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758118AbaKTRIf (ORCPT ); Thu, 20 Nov 2014 12:08:35 -0500 Received: from david.siemens.de ([192.35.17.14]:43859 "EHLO david.siemens.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757411AbaKTRCm (ORCPT ); Thu, 20 Nov 2014 12:02:42 -0500 From: Jan Kiszka To: Thomas Gleixner , linux-kernel@vger.kernel.org Cc: Andrew Morton , Jason Wessel , kgdb-bugreport@lists.sourceforge.net, Andi Kleen , Tom Tromey , Ben Widawsky , Borislav Petkov , Tatiana Al-Chueyr Martins Subject: [PATCH v10 16/27] scripts/gdb: Add get_gdbserver_type helper Date: Thu, 20 Nov 2014 18:01:53 +0100 Message-Id: X-Mailer: git-send-email 1.8.4.5 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 helper probes the type of the gdb server. Supported are QEMU and KGDB so far. Knowledge about the gdb server is required e.g. to retrieve the current CPU or current task. Signed-off-by: Jan Kiszka --- scripts/gdb/linux/utils.py | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/scripts/gdb/linux/utils.py b/scripts/gdb/linux/utils.py index 71ee48c..a4a1640 100644 --- a/scripts/gdb/linux/utils.py +++ b/scripts/gdb/linux/utils.py @@ -119,3 +119,38 @@ def is_target_arch(arch): if target_arch is None: target_arch = gdb.execute("show architecture", to_string=True) return arch in target_arch + + +GDBSERVER_QEMU = 0 +GDBSERVER_KGDB = 1 +gdbserver_type = None + + +def get_gdbserver_type(): + def exit_handler(event): + global gdbserver_type + gdbserver_type = None + gdb.events.exited.disconnect(exit_handler) + + def probe_qemu(): + try: + return gdb.execute("monitor info version", to_string=True) != "" + except: + return False + + def probe_kgdb(): + try: + thread_info = gdb.execute("info thread 2", to_string=True) + return "shadowCPU0" in thread_info + except: + return False + + global gdbserver_type + if gdbserver_type is None: + if probe_qemu(): + gdbserver_type = GDBSERVER_QEMU + elif probe_kgdb(): + gdbserver_type = GDBSERVER_KGDB + if not gdbserver_type is None and hasattr(gdb, 'events'): + gdb.events.exited.connect(exit_handler) + return gdbserver_type -- 1.8.4.5 -- 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/