Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757576Ab3FTK24 (ORCPT ); Thu, 20 Jun 2013 06:28:56 -0400 Received: from mail.windriver.com ([147.11.1.11]:60790 "EHLO mail.windriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757532Ab3FTK2w (ORCPT ); Thu, 20 Jun 2013 06:28:52 -0400 From: Tiejun Chen To: CC: , Subject: [v5][PATCH 4/6] powerpc/book3e: support kgdb for kernel space Date: Thu, 20 Jun 2013 18:28:28 +0800 Message-ID: <1371724110-8250-5-git-send-email-tiejun.chen@windriver.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1371724110-8250-1-git-send-email-tiejun.chen@windriver.com> References: <1371724110-8250-1-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 Content-Length: 1175 Lines: 34 Currently we need to skip this for supporting KGDB. Signed-off-by: Tiejun Chen --- arch/powerpc/kernel/exceptions-64e.S | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S index 07cf657..a286b51 100644 --- a/arch/powerpc/kernel/exceptions-64e.S +++ b/arch/powerpc/kernel/exceptions-64e.S @@ -639,11 +639,13 @@ kernel_dbg_exc: rfdi /* Normal debug exception */ +1: andi. r14,r11,MSR_PR; /* check for userspace again */ +#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 */ 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 -- 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/