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Date: Mon, 29 Aug 2022 09:12:39 +0200 From: Jiri Slaby <jirislaby@...nel.org> To: Ondrej Mosnacek <omosnace@...hat.com> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Linux kernel mailing list <linux-kernel@...r.kernel.org>, Linux Stable maillist <stable@...r.kernel.org>, Masahiro Yamada <masahiroy@...nel.org> Subject: Re: [PATCH 5.19 145/365] kbuild: dummy-tools: avoid tmpdir leak in dummy gcc On 27. 08. 22, 10:34, Ondrej Mosnacek wrote: > On Sat, Aug 27, 2022 at 9:51 AM Jiri Slaby <jirislaby@...nel.org> wrote: >> On 23. 08. 22, 10:00, Greg Kroah-Hartman wrote: >>> From: Ondrej Mosnacek <omosnace@...hat.com> >>> >>> 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 >>> $TMPDIR, instead use a static directory included in the source tree. >> >> This breaks our (SUSE) use of dummy tools (GCC_PLUGINS became =n). I >> will investigate whether this is stable-only and the root cause later. > > It looks like both the Greg's generated patch and the final stable > commit (d7e676b7dc6a) are missing the addition of the empty > plugin-version.h file. It appears in the patch's diffstat, but not in > the actual diff. The mainline commit does include the empty file > correctly, so it's likely a bug in the stable cherry pick automation. Right, this fixed the issue for me: --- a/patches.kernel.org/5.19.4-144-kbuild-dummy-tools-avoid-tmpdir-leak-in-dummy-.patch +++ b/patches.kernel.org/5.19.4-144-kbuild-dummy-tools-avoid-tmpdir-leak-in-dummy-.patch @@ -20,6 +20,8 @@ Signed-off-by: Jiri Slaby <jslaby@...e.cz> scripts/dummy-tools/gcc | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) +diff --git a/scripts/dummy-tools/dummy-plugin-dir/include/plugin-version.h b/scripts/dummy-tools/dummy-plugin-dir/include/plugin-version.h +new file mode 100644 diff --git a/scripts/dummy-tools/gcc b/scripts/dummy-tools/gcc index b2483149bbe5..7db825843435 100755 --- a/scripts/dummy-tools/gcc >>> Fixes: 76426e238834 ("kbuild: add dummy toolchains to enable all cc-option etc. in Kconfig") >>> Signed-off-by: Ondrej Mosnacek <omosnace@...hat.com> >>> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org> >>> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> >>> --- >>> .../dummy-tools/dummy-plugin-dir/include/plugin-version.h | 0 >>> scripts/dummy-tools/gcc | 8 ++------ >>> 1 file changed, 2 insertions(+), 6 deletions(-) >>> create mode 100644 scripts/dummy-tools/dummy-plugin-dir/include/plugin-version.h >>> >>> --- a/scripts/dummy-tools/gcc >>> +++ b/scripts/dummy-tools/gcc >>> @@ -96,12 +96,8 @@ fi >>> >>> # To set GCC_PLUGINS >>> if arg_contain -print-file-name=plugin "$@"; 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 thanks, -- js suse labs
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