linux-stable/scripts/Makefile.randstruct
Kees Cook 035f7f87b7 randstruct: Enable Clang support
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
2022-05-08 01:33:07 -07:00

17 lines
511 B
Makefile

# SPDX-License-Identifier: GPL-2.0
randstruct-cflags-y += -DRANDSTRUCT
ifdef CONFIG_GCC_PLUGIN_RANDSTRUCT
randstruct-cflags-y \
+= -fplugin=$(objtree)/scripts/gcc-plugins/randomize_layout_plugin.so
randstruct-cflags-$(CONFIG_RANDSTRUCT_PERFORMANCE) \
+= -fplugin-arg-randomize_layout_plugin-performance-mode
else
randstruct-cflags-y \
+= -frandomize-layout-seed-file=$(objtree)/scripts/basic/randstruct.seed
endif
export RANDSTRUCT_CFLAGS := $(randstruct-cflags-y)
KBUILD_CFLAGS += $(RANDSTRUCT_CFLAGS)