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From: Ingo Molnar <mingo@kernel.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org,
	Thomas Gleixner <tglx@linutronix.de>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Nathan Chancellor <nathan@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: [GIT PULL] core/urgent fix
Date: Fri, 26 Sep 2025 15:39:21 +0200	[thread overview]
Message-ID: <aNaXicdHkJpTu6-P@gmail.com> (raw)

Linus,

Please pull the latest core/urgent Git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core-urgent-2025-09-26

   # HEAD: e2ffa15b9baa447e444d654ffd47123ba6443ae4 kbuild: Disable CC_HAS_ASM_GOTO_OUTPUT on clang < 17

Fix a CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y bug on older Clang versions.

 Thanks,

	Ingo

------------------>
Thomas Gleixner (1):
      kbuild: Disable CC_HAS_ASM_GOTO_OUTPUT on clang < 17


 init/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/init/Kconfig b/init/Kconfig
index e3eb63eadc87..ecddb94db8dc 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -99,7 +99,10 @@ config GCC_ASM_GOTO_OUTPUT_BROKEN
 config CC_HAS_ASM_GOTO_OUTPUT
 	def_bool y
 	depends on !GCC_ASM_GOTO_OUTPUT_BROKEN
+	# Detect basic support
 	depends on $(success,echo 'int foo(int x) { asm goto ("": "=r"(x) ::: bar); return x; bar: return 0; }' | $(CC) -x c - -c -o /dev/null)
+	# Detect clang (< v17) scoped label issues
+	depends on $(success,echo 'void b(void **);void* c(void);int f(void){{asm goto("jmp %l0"::::l0);return 0;l0:return 1;}void *x __attribute__((cleanup(b)))=c();{asm goto("jmp %l0"::::l1);return 2;l1:return 3;}}' | $(CC) -x c - -c -o /dev/null)
 
 config CC_HAS_ASM_GOTO_TIED_OUTPUT
 	depends on CC_HAS_ASM_GOTO_OUTPUT

             reply	other threads:[~2025-09-26 13:39 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-26 13:39 Ingo Molnar [this message]
2025-09-26 20:44 ` pr-tracker-bot
  -- strict thread matches above, loose matches on Subject: below --
2026-06-13 10:41 Ingo Molnar
2026-06-13 15:28 ` pr-tracker-bot
2026-05-24  6:46 Ingo Molnar
2026-05-24 20:12 ` pr-tracker-bot
2019-06-02 17:32 Ingo Molnar
2019-06-02 18:15 ` pr-tracker-bot
2014-11-20  7:40 Ingo Molnar
2013-08-12 18:54 Ingo Molnar

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