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| author | Masahiro Yamada <masahiroy@kernel.org> | 2020-09-10 22:44:29 +0900 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2020-09-25 00:36:50 +0900 |
| commit | bb2732112bc52bed7b20b9fc59d7246e4e7ce5ed (patch) | |
| tree | 82ed0d438c401b482494e4b84457c714f27d7cc6 /Makefile | |
| parent | 9909b7681222299dcb6f3b0613c30a65498b6c72 (diff) | |
| download | lwn-bb2732112bc52bed7b20b9fc59d7246e4e7ce5ed.tar.gz lwn-bb2732112bc52bed7b20b9fc59d7246e4e7ce5ed.zip | |
kbuild: move CFLAGS_{KASAN,UBSAN,KCSAN} exports to relevant Makefiles
Move CFLAGS_KASAN*, CFLAGS_UBSAN, CFLAGS_KCSAN to Makefile.kasan,
Makefile.ubsan, Makefile.kcsan, respectively.
This commit also avoids the same -fsanitize=* flags being added to
CFLAGS_UBSAN multiple times.
Prior to this commit, the ubsan flags were appended by the '+='
operator, without any initialization. Some build targets such as
'make bindeb-pkg' recurses to the top Makefile, and ended up with
adding the same flags to CFLAGS_UBSAN twice.
Clear CFLAGS_UBSAN with ':=' to make it a simply expanded variable.
This is better than a recursively expanded variable, which evaluates
$(call cc-option, ...) multiple times before Kbuild starts descending
to subdirectories.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Marco Elver <elver@google.com>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 1 |
1 files changed, 0 insertions, 1 deletions
@@ -516,7 +516,6 @@ export KBUILD_HOSTCXXFLAGS KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS LDFLAGS_MODULE export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE -export CFLAGS_KASAN CFLAGS_KASAN_NOSANITIZE CFLAGS_UBSAN CFLAGS_KCSAN export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL |