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Kbuild: make designated_init attribute fatal

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If a structure is marked with __attribute__((designated_init)) from
GCC or Sparse, it needs to have all static initializers using designated
initialization. Fail the build for any missing cases. This attribute will
be used by the randstruct plugin to make sure randomized structures are
being correctly initialized.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Kees Cook 2017-03-20 17:14:11 -07:00 committed by Masahiro Yamada
parent f78271dfb7
commit c834f0e8a8
1 changed files with 3 additions and 0 deletions
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3
Makefile
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@ -795,6 +795,9 @@ KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
# enforce correct pointer usage
KBUILD_CFLAGS += $(call cc-option,-Werror=incompatible-pointer-types)
# Require designated initializers for all marked structures
KBUILD_CFLAGS += $(call cc-option,-Werror=designated-init)
# use the deterministic mode of AR if available
KBUILD_ARFLAGS := $(call ar-option,D)