The following commit has been merged into the x86/build branch of tip: Commit-ID: 19f6bc32c6f4216e099963f416de91eba7ca1430 Gitweb: https://git.kernel.org/tip/19f6bc32c6f4216e099963f416de91eba7ca1430 Author: Kees Cook <keesc...@chromium.org> AuthorDate: Tue, 29 Oct 2019 14:13:40 -07:00 Committer: Borislav Petkov <b...@suse.de> CommitterDate: Mon, 04 Nov 2019 18:02:35 +01:00
arm64: Move EXCEPTION_TABLE to RO_DATA segment Since the EXCEPTION_TABLE is read-only, collapse it into RO_DATA. Also removes the redundant ALIGN, which is already present at the end of the RO_DATA macro. Signed-off-by: Kees Cook <keesc...@chromium.org> Signed-off-by: Borislav Petkov <b...@suse.de> Acked-by: Will Deacon <w...@kernel.org> Cc: Andy Lutomirski <l...@kernel.org> Cc: Ard Biesheuvel <ard.biesheu...@linaro.org> Cc: Arnd Bergmann <a...@arndb.de> Cc: Catalin Marinas <catalin.mari...@arm.com> Cc: Dave Hansen <dave.han...@linux.intel.com> Cc: Heiko Carstens <heiko.carst...@de.ibm.com> Cc: linux-al...@vger.kernel.org Cc: linux-a...@vger.kernel.org Cc: linux-arm-ker...@lists.infradead.org Cc: linux-c6x-...@linux-c6x.org Cc: linux-i...@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-s...@vger.kernel.org Cc: Michael Ellerman <m...@ellerman.id.au> Cc: Michal Simek <mon...@monstr.eu> Cc: Peter Collingbourne <p...@google.com> Cc: Rick Edgecombe <rick.p.edgeco...@intel.com> Cc: Segher Boessenkool <seg...@kernel.crashing.org> Cc: x86-ml <x...@kernel.org> Cc: Yoshinori Sato <ys...@users.sourceforge.jp> Link: https://lkml.kernel.org/r/20191029211351.13243-19-keesc...@chromium.org --- arch/arm64/kernel/vmlinux.lds.S | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S index a4b3e6c..9128a26 100644 --- a/arch/arm64/kernel/vmlinux.lds.S +++ b/arch/arm64/kernel/vmlinux.lds.S @@ -5,6 +5,8 @@ * Written by Martin Mares <m...@atrey.karlin.mff.cuni.cz> */ +#define RO_EXCEPTION_TABLE_ALIGN 8 + #include <asm-generic/vmlinux.lds.h> #include <asm/cache.h> #include <asm/kernel-pgtable.h> @@ -135,10 +137,9 @@ SECTIONS . = ALIGN(SEGMENT_ALIGN); _etext = .; /* End of text section */ - RO_DATA(PAGE_SIZE) /* everything from this point to */ - EXCEPTION_TABLE(8) /* __init_begin will be marked RO NX */ + /* everything from this point to __init_begin will be marked RO NX */ + RO_DATA(PAGE_SIZE) - . = ALIGN(PAGE_SIZE); idmap_pg_dir = .; . += IDMAP_DIR_SIZE;
