From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753468AbdK2Xpl (ORCPT ); Wed, 29 Nov 2017 18:45:41 -0500 Received: from mail-pg0-f66.google.com ([74.125.83.66]:38079 "EHLO mail-pg0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753117AbdK2XpA (ORCPT ); Wed, 29 Nov 2017 18:45:00 -0500 X-Google-Smtp-Source: AGs4zMYGztAezKJw4GoA8AtL8XiPWryNdiSCzUMydIrXFuvQPnM2gYBmCBqXH2eyAL/WozJCX9vXVA== From: Sami Tolvanen To: Alex Matveev , Andi Kleen , Ard Biesheuvel , Greg Hackmann , Kees Cook , linux-arm-kernel@lists.infradead.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, Mark Rutland , Masahiro Yamada , Maxim Kuvyrkov , Michal Marek , Nick Desaulniers , Yury Norov , Matthias Kaehlcke , Nicholas Piggin Cc: Sami Tolvanen Subject: [PATCH 5/7] arm64: keep .altinstructions and .altinstr_replacement Date: Wed, 29 Nov 2017 15:44:40 -0800 Message-Id: <20171129234442.655-6-samitolvanen@google.com> X-Mailer: git-send-email 2.15.0.531.g2ccb3012c9-goog In-Reply-To: <20171129234442.655-1-samitolvanen@google.com> References: <20171129234442.655-1-samitolvanen@google.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Make sure the linker doesn't remove .altinstructions or .altinstr_replacement when CONFIG_LD_DEAD_CODE_DATA_ELIMINATION is enabled. Signed-off-by: Sami Tolvanen --- arch/arm64/kernel/vmlinux.lds.S | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S index 7da3e5c366a0..15479995869c 100644 --- a/arch/arm64/kernel/vmlinux.lds.S +++ b/arch/arm64/kernel/vmlinux.lds.S @@ -138,11 +138,11 @@ SECTIONS . = ALIGN(4); .altinstructions : { __alt_instructions = .; - *(.altinstructions) + KEEP(*(.altinstructions)) __alt_instructions_end = .; } .altinstr_replacement : { - *(.altinstr_replacement) + KEEP(*(.altinstr_replacement)) } . = ALIGN(PAGE_SIZE); -- 2.15.0.531.g2ccb3012c9-goog