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authorMasahiro Yamada <masahiroy@kernel.org>2020-09-10 22:44:29 +0900
committerMasahiro Yamada <masahiroy@kernel.org>2020-09-25 00:36:50 +0900
commitbb2732112bc52bed7b20b9fc59d7246e4e7ce5ed (patch)
tree82ed0d438c401b482494e4b84457c714f27d7cc6 /kernel/bounds.c
parent9909b7681222299dcb6f3b0613c30a65498b6c72 (diff)
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 'kernel/bounds.c')
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