Commit 8b07f74c authored by Linus Torvalds's avatar Linus Torvalds
Browse files

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

Pull core fix from Ingo Molnar:
 "Fix a CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y bug on older Clang versions"

* tag 'core-urgent-2025-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  kbuild: Disable CC_HAS_ASM_GOTO_OUTPUT on clang < 17
parents f26a2466 e2ffa15b

init/Kconfig

+3 −0
Original line number Diff line number Diff line
@@ -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