From aac289653fa5adf9e9985e4912c1d24a3e8cbab2 Mon Sep 17 00:00:00 2001
From: Ondrej Mosnacek <omosnace@redhat.com>
Date: Mon, 11 Jul 2022 14:09:23 +0200
Subject: [PATCH] kbuild: dummy-tools: avoid tmpdir leak in dummy gcc
Git-commit: aac289653fa5adf9e9985e4912c1d24a3e8cbab2
Patch-mainline: v6.0-rc1
References: git-fixes

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.

Fixes: 76426e238834 ("kbuild: add dummy toolchains to enable all cc-option etc. in Kconfig")
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 .../dummy-tools/dummy-plugin-dir/include/plugin-version.h | 0
 scripts/dummy-tools/gcc                                   | 8 ++------
 2 files changed, 2 insertions(+), 6 deletions(-)
 create mode 100644 scripts/dummy-tools/dummy-plugin-dir/include/plugin-version.h

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
index 000000000000..e69de29bb2d1
diff --git a/scripts/dummy-tools/gcc b/scripts/dummy-tools/gcc
index b2483149bbe5..7db825843435 100755
--- 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
 
-- 
2.35.3