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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id g14sm4184582pfo.154.2020.02.27.16.22.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Feb 2020 16:22:52 -0800 (PST) From: Kees Cook To: Borislav Petkov Subject: [PATCH 6/9] arm64/build: Use common DISCARDS in linker script Date: Thu, 27 Feb 2020 16:22:41 -0800 Message-Id: <20200228002244.15240-7-keescook@chromium.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200228002244.15240-1-keescook@chromium.org> References: <20200228002244.15240-1-keescook@chromium.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200227_162254_637341_4942A96F X-CRM114-Status: GOOD ( 11.86 ) 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 , "H.J. Lu" , Kees Cook , Arnd Bergmann , linux-kbuild@vger.kernel.org, Peter Collingbourne , Catalin Marinas , Masahiro Yamada , x86@kernel.org, Russell King , linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com, James Morse , linux-arch@vger.kernel.org, Will Deacon , 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+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Use the common DISCARDS rule for the linker script in an effort to regularize the linker script to prepare for warning on orphaned sections. Signed-off-by: Kees Cook --- arch/arm64/kernel/vmlinux.lds.S | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S index 497f9675071d..c61d9ab3211c 100644 --- a/arch/arm64/kernel/vmlinux.lds.S +++ b/arch/arm64/kernel/vmlinux.lds.S @@ -6,6 +6,7 @@ */ #define RO_EXCEPTION_TABLE_ALIGN 8 +#define RUNTIME_DISCARD_EXIT #include #include @@ -19,7 +20,6 @@ /* .exit.text needed in case of alternative patching */ #define ARM_EXIT_KEEP(x) x -#define ARM_EXIT_DISCARD(x) OUTPUT_ARCH(aarch64) ENTRY(_text) @@ -94,12 +94,8 @@ SECTIONS * matching the same input section name. There is no documented * order of matching. */ + DISCARDS /DISCARD/ : { - ARM_EXIT_DISCARD(EXIT_TEXT) - ARM_EXIT_DISCARD(EXIT_DATA) - EXIT_CALL - *(.discard) - *(.discard.*) *(.interp .dynamic) *(.dynsym .dynstr .hash .gnu.hash) *(.eh_frame) -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel