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035f7f87b7
Clang 15 will support randstruct via the -frandomize-layout-seed-file=... option. Update the Kconfig and Makefile to recognize this feature. Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: linux-kbuild@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220503205503.3054173-7-keescook@chromium.org
17 lines
511 B
Text
17 lines
511 B
Text
# SPDX-License-Identifier: GPL-2.0
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randstruct-cflags-y += -DRANDSTRUCT
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ifdef CONFIG_GCC_PLUGIN_RANDSTRUCT
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randstruct-cflags-y \
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+= -fplugin=$(objtree)/scripts/gcc-plugins/randomize_layout_plugin.so
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randstruct-cflags-$(CONFIG_RANDSTRUCT_PERFORMANCE) \
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+= -fplugin-arg-randomize_layout_plugin-performance-mode
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else
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randstruct-cflags-y \
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+= -frandomize-layout-seed-file=$(objtree)/scripts/basic/randstruct.seed
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endif
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export RANDSTRUCT_CFLAGS := $(randstruct-cflags-y)
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KBUILD_CFLAGS += $(RANDSTRUCT_CFLAGS)
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