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ARM: Select ARCH_USES_CFI_GENERIC_LLVM_PASS

Prior to clang 22.0.0 [1], ARM did not have an architecture specific
kCFI bundle lowering in the backend, which may cause issues. Select
CONFIG_ARCH_USES_CFI_GENERIC_LLVM_PASS to enable use of __nocfi_generic.

Link: https://github.com/llvm/llvm-project/commit/d130f402642fba3d065aacb506cb061c899558de [1]
Link: https://github.com/ClangBuiltLinux/linux/issues/2124
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://patch.msgid.link/20251025-idpf-fix-arm-kcfi-build-error-v1-2-ec57221153ae@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>

authored by

Nathan Chancellor and committed by
Kees Cook 1ed9e6b1 39c89ee6

+2
+2
arch/arm/Kconfig
··· 44 44 select ARCH_USE_BUILTIN_BSWAP 45 45 select ARCH_USE_CMPXCHG_LOCKREF 46 46 select ARCH_USE_MEMTEST 47 + # https://github.com/llvm/llvm-project/commit/d130f402642fba3d065aacb506cb061c899558de 48 + select ARCH_USES_CFI_GENERIC_LLVM_PASS if CLANG_VERSION < 220000 47 49 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU 48 50 select ARCH_WANT_GENERAL_HUGETLB 49 51 select ARCH_WANT_IPC_PARSE_VERSION