From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756517AbdKCRRR (ORCPT ); Fri, 3 Nov 2017 13:17:17 -0400 Received: from mail-io0-f196.google.com ([209.85.223.196]:56900 "EHLO mail-io0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756144AbdKCRMk (ORCPT ); Fri, 3 Nov 2017 13:12:40 -0400 X-Google-Smtp-Source: ABhQp+TCaM8TZdrtN7X0PBgNkWBqY/h0TIcEaa9ddQJxZlpKRM/gVjAP5pAqf8vrSBR6uP6ziYAF9Q== From: Sami Tolvanen To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Greg Hackmann , Kees Cook , Matthias Kaehlcke , Nick Desaulniers , Sami Tolvanen Subject: [PATCH 02/15] kbuild: fix LD_DEAD_CODE_DATA_ELIMINATION with GNU gold Date: Fri, 3 Nov 2017 10:11:46 -0700 Message-Id: <20171103171203.107569-3-samitolvanen@google.com> X-Mailer: git-send-email 2.15.0.403.gc27cc4dac6-goog In-Reply-To: <20171103171203.107569-1-samitolvanen@google.com> References: <20171103171203.107569-1-samitolvanen@google.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Don't remove .head.text or .exitcall.exit when linking with --gc-sections, and include .init.text.* in .init.text and .init.rodata.* in .init.rodata. Signed-off-by: Sami Tolvanen --- include/asm-generic/vmlinux.lds.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 8acfc1e099e1..d0070985c191 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -511,7 +511,7 @@ VMLINUX_SYMBOL(__softirqentry_text_end) = .; /* Section used for early init (in .S files) */ -#define HEAD_TEXT *(.head.text) +#define HEAD_TEXT KEEP(*(.head.text)) #define HEAD_TEXT_SECTION \ .head.text : AT(ADDR(.head.text) - LOAD_OFFSET) { \ @@ -556,7 +556,7 @@ MEM_DISCARD(init.data) \ KERNEL_CTORS() \ MCOUNT_REC() \ - *(.init.rodata) \ + *(.init.rodata .init.rodata.*) \ FTRACE_EVENTS() \ TRACE_SYSCALLS() \ KPROBE_BLACKLIST() \ @@ -575,7 +575,7 @@ EARLYCON_TABLE() #define INIT_TEXT \ - *(.init.text) \ + *(.init.text .init.text.*) \ *(.text.startup) \ MEM_DISCARD(init.text) @@ -592,7 +592,7 @@ MEM_DISCARD(exit.text) #define EXIT_CALL \ - *(.exitcall.exit) + KEEP(*(.exitcall.exit)) /* * bss (Block Started by Symbol) - uninitialized data -- 2.15.0.403.gc27cc4dac6-goog