Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757703AbaD2Ocd (ORCPT ); Tue, 29 Apr 2014 10:32:33 -0400 Received: from mail-we0-f182.google.com ([74.125.82.182]:47397 "EHLO mail-we0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757796AbaD2ObO (ORCPT ); Tue, 29 Apr 2014 10:31:14 -0400 From: Daniel Thompson To: kgdb-bugreport@lists.sourceforge.net, Jason Wessel Cc: patches@linaro.org, linaro-kernel@lists.linaro.org, Daniel Thompson , linux-kernel@vger.kernel.org, Paul Gortmaker , Andrew Morton , Mike Travis , Dimitri Sivanich , Hedi Berriche , John Stultz , Anton Vorontsov , Colin Cross , kernel-team@android.com Subject: [PATCH 2/3] proc: Provide access to /proc/interrupts from kdb Date: Tue, 29 Apr 2014 15:30:40 +0100 Message-Id: <1398781841-15152-4-git-send-email-daniel.thompson@linaro.org> X-Mailer: git-send-email 1.9.0 In-Reply-To: <1398781841-15152-1-git-send-email-daniel.thompson@linaro.org> References: <1398781841-15152-1-git-send-email-daniel.thompson@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The contents of /proc/interrupts is useful to diagnose problems during boot up or when the system becomes unresponsive (or at least it can be if failure is causes by interrupt problems). This command is also seen in out-of-tree debug systems such as Android's FIQ debugger. This change allows the file to be displayed from kdb. Signed-off-by: Daniel Thompson --- fs/proc/interrupts.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/fs/proc/interrupts.c b/fs/proc/interrupts.c index a352d57..1f8eeaf 100644 --- a/fs/proc/interrupts.c +++ b/fs/proc/interrupts.c @@ -4,6 +4,7 @@ #include #include #include +#include /* * /proc/interrupts @@ -45,9 +46,18 @@ static const struct file_operations proc_interrupts_operations = { .release = seq_release, }; +#ifdef CONFIG_KGDB_KDB +static int kdb_interrupts(int argc, const char **argv) +{ + return kdb_print_seq_file(&int_seq_ops); +} +#endif + static int __init proc_interrupts_init(void) { proc_create("interrupts", 0, NULL, &proc_interrupts_operations); + kdb_register("interrupts", kdb_interrupts, "", + "Show /proc/interrupts", 3); return 0; } fs_initcall(proc_interrupts_init); -- 1.9.0 -- 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/