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f8fa70f392
We currently define OBJCOPYFLAGS in the top-level arm64 Makefile, and thus these flags will be passed to all uses of objcopy, kernel-wide, for which they are not explicitly overridden. The flags we set are intended for converting vmlinux (and ELF) into Image (a raw binary), and thus the flags chosen are problematic for some other uses which do not expect a raw binary result, e.g. the upcoming lkdtm rodata test: http://www.openwall.com/lists/kernel-hardening/2016/06/08/2 This patch localises the objcopy flags such that they are only used for the vmlinux -> Image conversion. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will.deacon@arm.com> Acked-by: Kees Cook <keescook@chromium.org> Tested-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
46 lines
1.1 KiB
Makefile
46 lines
1.1 KiB
Makefile
#
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# arch/arm64/boot/Makefile
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#
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# This file is included by the global makefile so that you can add your own
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# architecture-specific flags and dependencies.
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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# Copyright (C) 2012, ARM Ltd.
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# Author: Will Deacon <will.deacon@arm.com>
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#
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# Based on the ia64 boot/Makefile.
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#
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OBJCOPYFLAGS_Image :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
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targets := Image Image.gz
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$(obj)/Image: vmlinux FORCE
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$(call if_changed,objcopy)
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$(obj)/Image.bz2: $(obj)/Image FORCE
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$(call if_changed,bzip2)
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$(obj)/Image.gz: $(obj)/Image FORCE
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$(call if_changed,gzip)
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$(obj)/Image.lz4: $(obj)/Image FORCE
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$(call if_changed,lz4)
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$(obj)/Image.lzma: $(obj)/Image FORCE
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$(call if_changed,lzma)
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$(obj)/Image.lzo: $(obj)/Image FORCE
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$(call if_changed,lzo)
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install:
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$(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
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$(obj)/Image System.map "$(INSTALL_PATH)"
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zinstall:
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$(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
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$(obj)/Image.gz System.map "$(INSTALL_PATH)"
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