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linux-yocto/scripts/basic/Makefile
Kees Cook be2b34fa9b randstruct: Move seed generation into scripts/basic/ 
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
2022-05-08 01:33:07 -07:00

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SPDX-License-Identifier: GPL-2.0-only

fixdep: used to generate dependency information during build process

hostprogs-always-y += fixdep

randstruct: the seed is needed before building the gcc-plugin or

before running a Clang kernel build.

gen-randstruct-seed := $(srctree)/scripts/gen-randstruct-seed.sh quiet_cmd_create_randstruct_seed = GENSEED $@ cmd_create_randstruct_seed =
$(CONFIG_SHELL) $(gen-randstruct-seed)
$@ $(objtree)/include/generated/randstruct_hash.h $(obj)/randstruct.seed: $(gen-randstruct-seed) FORCE $(call if_changed,create_randstruct_seed) always-$(CONFIG_RANDSTRUCT) += randstruct.seed