Commit f709859f authored by Nathan Chancellor's avatar Nathan Chancellor Committed by Kees Cook
Browse files

init/Kconfig: Adjust fixed clang version for __builtin_counted_by_ref 



Commit d39a1d74 ("compiler_types: Disable __builtin_counted_by_ref
for Clang") used 22.0.0 as the fixed version for a compiler crash but
the fix was only merged in main (23.0.0) and release/22.x (22.1.0). With
the current fixed version number, prerelease or Android LLVM 22 builds
will still be able to hit the compiler crash when building the kernel.
This can be particularly disruptive when bisecting LLVM.

Use 21.1.0 as the fixed version number to ensure the fix for this crash
is always present.

Fixes: d39a1d74 ("compiler_types: Disable __builtin_counted_by_ref for Clang")
Signed-off-by: default avatarNathan Chancellor <nathan@kernel.org>
Link: https://patch.msgid.link/20260223-fix-clang-version-builtin-counted-by-ref-v1-1-3ea478a24f0a@kernel.org


Signed-off-by: default avatarKees Cook <kees@kernel.org>
parent 96a7b71c

init/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -153,7 +153,7 @@ config CC_HAS_COUNTED_BY_PTR 
config CC_HAS_BROKEN_COUNTED_BY_REF

	bool

	# https://github.com/llvm/llvm-project/issues/182575

	default y if CC_IS_CLANG && CLANG_VERSION < 220000

	default y if CC_IS_CLANG && CLANG_VERSION < 220100



config CC_HAS_MULTIDIMENSIONAL_NONSTRING

	def_bool $(success,echo 'char tag[][4] __attribute__((__nonstring__)) = { };' | $(CC) $(CLANG_FLAGS) -x c - -c -o /dev/null -Werror)