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Groups > linux.kernel > #1605218
| From | Kees Cook <keescook@chromium.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2] Kbuild: make designated_init attribute fatal |
| Date | 2017-03-21 01:20 +0100 |
| Message-ID | <tnfGN-3WZ-9@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
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> --- v2: update subject to more clearly describe change, Masahiro Yamada --- Makefile | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Makefile b/Makefile index b841fb36beb2..142ab7b96130 100644 --- a/Makefile +++ b/Makefile @@ -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) -- 2.7.4 -- Kees Cook Pixel Security
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[PATCH v2] Kbuild: make designated_init attribute fatal Kees Cook <keescook@chromium.org> - 2017-03-21 01:20 +0100 Re: [PATCH v2] Kbuild: make designated_init attribute fatal Masahiro Yamada <yamada.masahiro@socionext.com> - 2017-03-21 19:00 +0100
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