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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id hg13sm5486603pjb.21.2020.06.28.23.18.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 28 Jun 2020 23:18:48 -0700 (PDT) From: Kees Cook To: Will Deacon Subject: [PATCH v4 12/17] arm/build: Refactor linker script headers Date: Sun, 28 Jun 2020 23:18:35 -0700 Message-Id: <20200629061840.4065483-13-keescook@chromium.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200629061840.4065483-1-keescook@chromium.org> References: <20200629061840.4065483-1-keescook@chromium.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200629_071859_177416_609B2276 X-CRM114-Status: GOOD ( 14.36 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , linux-arch@vger.kernel.org, linux-efi@vger.kernel.org, Kees Cook , Arnd Bergmann , Catalin Marinas , Masahiro Yamada , x86@kernel.org, Nick Desaulniers , Russell King , linux-kernel@vger.kernel.org, Nathan Chancellor , clang-built-linux@googlegroups.com, Arvind Sankar , Ingo Molnar , James Morse , Thomas Gleixner , Borislav Petkov , Peter Collingbourne , Ard Biesheuvel , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org In preparation for adding --orphan-handling=warn, refactor the linker script header includes, and extract common macros. (The ARM_COMMON_DISCARD macro will be shared with the boot linker script in a future patch.) Signed-off-by: Kees Cook --- arch/arm/{kernel => include/asm}/vmlinux.lds.h | 17 ++++++++++++----- arch/arm/kernel/vmlinux-xip.lds.S | 4 +--- arch/arm/kernel/vmlinux.lds.S | 4 +--- 3 files changed, 14 insertions(+), 11 deletions(-) rename arch/arm/{kernel => include/asm}/vmlinux.lds.h (95%) diff --git a/arch/arm/kernel/vmlinux.lds.h b/arch/arm/include/asm/vmlinux.lds.h similarity index 95% rename from arch/arm/kernel/vmlinux.lds.h rename to arch/arm/include/asm/vmlinux.lds.h index 381a8e105fa5..142c038b2e97 100644 --- a/arch/arm/kernel/vmlinux.lds.h +++ b/arch/arm/include/asm/vmlinux.lds.h @@ -1,4 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0 */ +#include #ifdef CONFIG_HOTPLUG_CPU #define ARM_CPU_DISCARD(x) @@ -37,6 +38,10 @@ *(.idmap.text) \ __idmap_text_end = .; \ +#define ARM_COMMON_DISCARD \ + *(.discard) \ + *(.discard.*) + #define ARM_DISCARD \ *(.ARM.exidx.exit.text) \ *(.ARM.extab.exit.text) \ @@ -49,8 +54,12 @@ EXIT_CALL \ ARM_MMU_DISCARD(*(.text.fixup)) \ ARM_MMU_DISCARD(*(__ex_table)) \ - *(.discard) \ - *(.discard.*) + ARM_COMMON_DISCARD + +#define ARM_STUBS_TEXT \ + *(.gnu.warning) \ + *(.glue_7) \ + *(.glue_7t) #define ARM_TEXT \ IDMAP_TEXT \ @@ -64,9 +73,7 @@ CPUIDLE_TEXT \ LOCK_TEXT \ KPROBES_TEXT \ - *(.gnu.warning) \ - *(.glue_7) \ - *(.glue_7t) \ + ARM_STUBS_TEXT \ . = ALIGN(4); \ *(.got) /* Global offset table */ \ ARM_CPU_KEEP(PROC_INFO) diff --git a/arch/arm/kernel/vmlinux-xip.lds.S b/arch/arm/kernel/vmlinux-xip.lds.S index 3d4e88f08196..904c31fa20ed 100644 --- a/arch/arm/kernel/vmlinux-xip.lds.S +++ b/arch/arm/kernel/vmlinux-xip.lds.S @@ -9,15 +9,13 @@ #include -#include +#include #include #include #include #include #include -#include "vmlinux.lds.h" - OUTPUT_ARCH(arm) ENTRY(stext) diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S index 5592f14b7e35..bb950c896a67 100644 --- a/arch/arm/kernel/vmlinux.lds.S +++ b/arch/arm/kernel/vmlinux.lds.S @@ -9,15 +9,13 @@ #else #include -#include +#include #include #include #include #include #include -#include "vmlinux.lds.h" - OUTPUT_ARCH(arm) ENTRY(stext) -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel