Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756647AbdLTWuT (ORCPT ); Wed, 20 Dec 2017 17:50:19 -0500 Received: from us01smtprelay-2.synopsys.com ([198.182.60.111]:47437 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756202AbdLTWuL (ORCPT ); Wed, 20 Dec 2017 17:50:11 -0500 From: Vineet Gupta To: CC: , Arnd Bergmann , "Vineet Gupta" Subject: [PATCH 2/2] ARC: handle gcc generated __builtin_trap for older compiler Date: Wed, 20 Dec 2017 14:49:54 -0800 Message-ID: <1513810194-8377-3-git-send-email-vgupta@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1513810194-8377-1-git-send-email-vgupta@synopsys.com> References: <1513810194-8377-1-git-send-email-vgupta@synopsys.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.10.161.67] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 824 Lines: 30 ARC gcc prior to GNU 2018.03 release didn't have a target specific __builtin_trap() implementation, generating default abort() call. Implement the abort() call - emulating what newer gcc does for the same, as suggested by Arnd. Signed-off-by: Vineet Gupta --- arch/arc/kernel/traps.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arc/kernel/traps.c b/arch/arc/kernel/traps.c index 004f4e4a4c10..51a55b06cb2a 100644 --- a/arch/arc/kernel/traps.c +++ b/arch/arc/kernel/traps.c @@ -161,3 +161,12 @@ void do_insterror_or_kprobe(unsigned long address, struct pt_regs *regs) insterror_is_error(address, regs); } + +/* + * abort() call generated by older gcc for __builtin_trap() + */ +void abort(void) +{ + __asm__ __volatile__("trap_s 5\n"); +} +EXPORT_SYMBOL(abort); -- 2.7.4