From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752001Ab2LTJJm (ORCPT ); Thu, 20 Dec 2012 04:09:42 -0500 Received: from mail1.windriver.com ([147.11.146.13]:62670 "EHLO mail1.windriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751894Ab2LTJI6 (ORCPT ); Thu, 20 Dec 2012 04:08:58 -0500 From: Tiejun Chen To: CC: , , Subject: [v1][PATCH 5/6] powerpc/book3e: support kgdb for kernel space Date: Thu, 20 Dec 2012 17:08:29 +0800 Message-ID: <1355994510-11934-6-git-send-email-tiejun.chen@windriver.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1355994510-11934-1-git-send-email-tiejun.chen@windriver.com> References: <1355994510-11934-1-git-send-email-tiejun.chen@windriver.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Currently we need to skip this for supporting KGDB. Signed-off-by: Tiejun Chen --- arch/powerpc/kernel/exceptions-64e.S | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S index 9a99cba..a24baef 100644 --- a/arch/powerpc/kernel/exceptions-64e.S +++ b/arch/powerpc/kernel/exceptions-64e.S @@ -588,11 +588,14 @@ kernel_dbg_exc: rfdi /* Normal debug exception */ +1: +#ifndef CONFIG_KGDB /* XXX We only handle coming from userspace for now since we can't * quite save properly an interrupted kernel state yet */ -1: andi. r14,r11,MSR_PR; /* check for userspace again */ + andi. r14,r11,MSR_PR; /* check for userspace again */ beq kernel_dbg_exc; /* if from kernel mode */ +#endif /* Now we mash up things to make it look like we are coming on a * normal exception -- 1.7.9.5