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To enable Clang randstruct support, move the structure layout randomization seed generation out of scripts/gcc-plugins/ into scripts/basic/ so it happens early enough that it can be used by either compiler implementation. The gcc-plugin still builds its own header file, but now does so from the common "randstruct.seed" file. Cc: linux-hardening@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220503205503.3054173-6-keescook@chromium.org
17 lines
629 B
Makefile
17 lines
629 B
Makefile
# SPDX-License-Identifier: GPL-2.0-only
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#
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# fixdep: used to generate dependency information during build process
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hostprogs-always-y += fixdep
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# randstruct: the seed is needed before building the gcc-plugin or
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# before running a Clang kernel build.
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gen-randstruct-seed := $(srctree)/scripts/gen-randstruct-seed.sh
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quiet_cmd_create_randstruct_seed = GENSEED $@
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cmd_create_randstruct_seed = \
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$(CONFIG_SHELL) $(gen-randstruct-seed) \
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$@ $(objtree)/include/generated/randstruct_hash.h
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$(obj)/randstruct.seed: $(gen-randstruct-seed) FORCE
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$(call if_changed,create_randstruct_seed)
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always-$(CONFIG_RANDSTRUCT) += randstruct.seed
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