Messages in this thread | | | From | Masahiro Yamada <> | Date | Thu, 12 Dec 2019 13:51:26 +0900 | Subject | Re: [PATCH] gcc-plugins: make it possible to disable CONFIG_GCC_PLUGINS again |
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On Wed, Dec 11, 2019 at 10:40 PM Arnd Bergmann <arnd@arndb.de> wrote: > > I noticed that randconfig builds with gcc no longer produce a lot of > ccache hits, unlike with clang, and traced this back to plugins > now being enabled unconditionally if they are supported. > > I am now working around this by adding > > export CCACHE_COMPILERCHECK=/usr/bin/size -A %compiler% > > to my top-level Makefile. This changes the heuristic that ccache uses > to determine whether the plugins are the same after a 'make clean'. > > However, it also seems that being able to just turn off the plugins is > generally useful, at least for build testing it adds noticeable overhead > but does not find a lot of bugs additional bugs, and may be easier for > ccache users than my workaround. > > Fixes: 9f671e58159a ("security: Create "kernel hardening" config area") > Signed-off-by: Arnd Bergmann <arnd@arndb.de> > ---
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
-- Best Regards Masahiro Yamada
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