be2b34fa9b
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
|
|
#
|
|
# 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
|