From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail1.windriver.com (mail1.windriver.com [147.11.146.13]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mail1.windriver.com", Issuer "Intel External Basic Issuing CA 3A" (not verified)) by ozlabs.org (Postfix) with ESMTPS id B611A2C0333 for ; Thu, 20 Dec 2012 20:08:57 +1100 (EST) From: Tiejun Chen To: 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> 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 Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, jason.wessel@windriver.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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