On Sat, Aug 27, 2022 at 9:51 AM Jiri Slaby <jirislaby@xxxxxxxxxx> wrote:
> On 23. 08. 22, 10:00, Greg Kroah-Hartman wrote:
> > From: Ondrej Mosnacek <omosnace@xxxxxxxxxx>
> >
> > commit aac289653fa5adf9e9985e4912c1d24a3e8cbab2 upstream.
> >
> > When passed -print-file-name=plugin, the dummy gcc script creates a
> > temporary directory that is never cleaned up. To avoid cluttering
> > $TMPDIR, instead use a static directory included in the source tree.
>
> This breaks our (SUSE) use of dummy tools (GCC_PLUGINS became =n). I
> will investigate whether this is stable-only and the root cause later.
It looks like both the Greg's generated patch and the final stable
commit (d7e676b7dc6a) are missing the addition of the empty
plugin-version.h file. It appears in the patch's diffstat, but not in
the actual diff. The mainline commit does include the empty file
correctly, so it's likely a bug in the stable cherry pick automation.
> > Fixes: 76426e238834 ("kbuild: add dummy toolchains to enable all cc-option etc. in Kconfig")
> > Signed-off-by: Ondrej Mosnacek <omosnace@xxxxxxxxxx>
> > Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
> > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > ---
> > .../dummy-tools/dummy-plugin-dir/include/plugin-version.h | 0
> > scripts/dummy-tools/gcc | 8 ++------
> > 1 file changed, 2 insertions(+), 6 deletions(-)
> > create mode 100644 scripts/dummy-tools/dummy-plugin-dir/include/plugin-version.h
> >
> > --- a/scripts/dummy-tools/gcc
> > +++ b/scripts/dummy-tools/gcc
> > @@ -96,12 +96,8 @@ fi
> >
> > # To set GCC_PLUGINS
> > if arg_contain -print-file-name=plugin "$@"; then
> > - plugin_dir=$(mktemp -d)
> > -
> > - mkdir -p $plugin_dir/include
> > - touch $plugin_dir/include/plugin-version.h
> > -
> > - echo $plugin_dir
> > + # Use $0 to find the in-tree dummy directory
> > + echo "$(dirname "$(readlink -f "$0")")/dummy-plugin-dir"
> > exit 0
> > fi
> >
> >
> >
>
> --
> js
> suse labs
>
--
Ondrej Mosnacek
Senior Software Engineer, Linux Security - SELinux kernel
Red Hat, Inc.
