From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965483AbcKDSjx convert rfc822-to-8bit (ORCPT ); Fri, 4 Nov 2016 14:39:53 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:42137 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964815AbcKDSju (ORCPT ); Fri, 4 Nov 2016 14:39:50 -0400 From: Sebastian Andrzej Siewior To: linux-kernel@vger.kernel.org Cc: Michal Marek , linux-kbuild@vger.kernel.org, x86@kernel.org, Al Viro , Ben Hutchings , Sven Joachim , "Austin S. Hemmelgarn" , Borislav Petkov Subject: [PATCH 1/3] kbuild: add -fno-PIE Date: Fri, 4 Nov 2016 19:39:38 +0100 Message-Id: <20161104183940.30692-2-bigeasy@linutronix.de> X-Mailer: git-send-email 2.10.2 In-Reply-To: <20161104183940.30692-1-bigeasy@linutronix.de> References: <20161104183940.30692-1-bigeasy@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Debian started to build the gcc with -fPIE by default so the kernel build ends before it starts properly with: |kernel/bounds.c:1:0: error: code model kernel does not support PIC mode Also add to KBUILD_AFLAGS due to: |gcc -Wp,-MD,arch/x86/entry/vdso/vdso32/.note.o.d … -mfentry -DCC_USING_FENTRY … vdso/vdso32/note.S |arch/x86/entry/vdso/vdso32/note.S:1:0: sorry, unimplemented: -mfentry isn’t supported for 32-bit in combination with -fpic Tagging it stable so it is possible to compile recent stable kernels as well. Cc: stable@vger.kernel.org Signed-off-by: Sebastian Andrzej Siewior --- Makefile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Makefile b/Makefile index a2650f9c6a25..d61145ebf498 100644 --- a/Makefile +++ b/Makefile @@ -622,6 +622,8 @@ include arch/$(SRCARCH)/Makefile KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,) KBUILD_CFLAGS += $(call cc-disable-warning,maybe-uninitialized,) KBUILD_CFLAGS += $(call cc-disable-warning,frame-address,) +KBUILD_CFLAGS += $(call cc-option,-fno-PIE) +KBUILD_AFLAGS += $(call cc-option,-fno-PIE) ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION KBUILD_CFLAGS += $(call cc-option,-ffunction-sections,) -- 2.10.2