linux-kernel - [PATCH v5 04/15] init: re-add CONFIG_CC_CAN_LINK

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Message-Id: <20250717-kunit-kselftests-v5-4-442b711cde2e@linutronix.de>
Date: Thu, 17 Jul 2025 10:48:06 +0200
From: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
To: Masahiro Yamada <masahiroy@...nel.org>, 
 Nathan Chancellor <nathan@...nel.org>, 
 Andrew Morton <akpm@...ux-foundation.org>, Willy Tarreau <w@....eu>, 
 Thomas Weißschuh <linux@...ssschuh.net>, 
 Brendan Higgins <brendan.higgins@...ux.dev>, 
 David Gow <davidgow@...gle.com>, Rae Moar <rmoar@...gle.com>, 
 Shuah Khan <shuah@...nel.org>, Jonathan Corbet <corbet@....net>, 
 Nicolas Schier <nicolas.schier@...ux.dev>, Kees Cook <kees@...nel.org>, 
 Alexander Viro <viro@...iv.linux.org.uk>, 
 Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>, 
 Christoph Hellwig <hch@....de>, Luis Chamberlain <mcgrof@...nel.org>
Cc: Christophe Leroy <christophe.leroy@...roup.eu>, 
 linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com, 
 linux-doc@...r.kernel.org, workflows@...r.kernel.org, linux-mm@...ck.org, 
 linux-fsdevel@...r.kernel.org, 
 Thomas Weißschuh <thomas.weissschuh@...utronix.de>, 
 Nicolas Schier <nicolas.schier@...ux.dev>
Subject: [PATCH v5 04/15] init: re-add CONFIG_CC_CAN_LINK_STATIC

For the kunit UAPI functionality this feature is needed again.

Effectively revert commit d1b99cdf22e0 ("init: remove unused
CONFIG_CC_CAN_LINK_STATIC"), which removed the option.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Reviewed-by: Nicolas Schier <n.schier@....de>
Reviewed-by: Masahiro Yamada <masahiroy@...nel.org>
---
 init/Kconfig | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/init/Kconfig b/init/Kconfig
index af4c2f0854554bbcdf193852cf5c1d2c2accc64f..26cafbad4f1560fb56b4bef31ae29baf54175661 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -87,6 +87,11 @@ config CC_CAN_LINK
 	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(m64-flag)) if 64BIT
 	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(m32-flag))
 
+config CC_CAN_LINK_STATIC
+	bool
+	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(m64-flag) -static) if 64BIT
+	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(m32-flag) -static)
+
 # Fixed in GCC 14, 13.3, 12.4 and 11.5
 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113921
 config GCC_ASM_GOTO_OUTPUT_BROKEN

-- 
2.50.0