From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S968101AbcA1TzH (ORCPT ); Thu, 28 Jan 2016 14:55:07 -0500 Received: from mail-ob0-f193.google.com ([209.85.214.193]:35677 "EHLO mail-ob0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S967346AbcA1TqV (ORCPT ); Thu, 28 Jan 2016 14:46:21 -0500 From: Jeffrey Merkey To: linux-kernel@vger.kernel.org Cc: hskinnemoen@gmail.com, egtvedt@samfundet.no, linux.mdb@gmail.com Subject: [PATCH 03/31] Add debugger entry points for AVR32 Date: Thu, 28 Jan 2016 12:46:17 -0700 Message-Id: <1454010377-28501-1-git-send-email-jeffmerkey@gmail.com> X-Mailer: git-send-email 1.8.3.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch series adds an export which can be set by system debuggers to direct the hard lockup and soft lockup detector to trigger a breakpoint exception and enter a debugger if one is active. It is assumed that if someone sets this variable, then an breakpoint handler of some sort will be actively loaded or registered via the notify die handler chain. This addition is extremely useful for debugging hard and soft lockups real time and quickly from a console debugger. Signed-off-by: Jeffrey Merkey --- arch/avr32/include/asm/kdebug.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/avr32/include/asm/kdebug.h b/arch/avr32/include/asm/kdebug.h index f930ce2..f67caf0 100644 --- a/arch/avr32/include/asm/kdebug.h +++ b/arch/avr32/include/asm/kdebug.h @@ -1,6 +1,10 @@ #ifndef __ASM_AVR32_KDEBUG_H #define __ASM_AVR32_KDEBUG_H +static inline void arch_breakpoint(void) +{ +} + /* Grossly misnamed. */ enum die_val { DIE_BREAKPOINT, -- 1.8.3.1