From: Nathan Chancellor Date: Sun, 17 May 2026 23:05:14 +0000 (-1000) Subject: x86/build: Drop unnecessary '-ffreestanding' addition to KBUILD_CFLAGS X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=7b3281fcb43c5fce8d4d2b0996d3ac719cb5068b;p=thirdparty%2Flinux.git x86/build: Drop unnecessary '-ffreestanding' addition to KBUILD_CFLAGS Now that the minimum supported version of LLVM for building the kernel has been raised to 17.0.1, the addition of '-ffreestanding' to KBUILD_CFLAGS for 32-bit x86 is unnecessary, as the linked LLVM bug is resolved in all supported LLVM versions. 16cb16e0d285 ("x86/build: Remove -ffreestanding on i386 with GCC") intended to make the addition of '-ffreestanding' clang only but due to a bug in the adjusted check from d70da12453ac ("hardening: Enable i386 FORTIFY_SOURCE on Clang 16+") it has been applied for all versions of GCC and clang < 16.0.0. There are no known problems with removing this for GCC but if one surfaces, it can be restored under a CONFIG_CC_IS_GCC block. Link: https://patch.msgid.link/20260517-bump-minimum-supported-llvm-version-to-17-v2-11-b3b8cda46bdd@kernel.org Signed-off-by: Nathan Chancellor --- diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 46fec0b08487a..5720f2470cfca 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -124,11 +124,6 @@ ifeq ($(CONFIG_X86_32),y) include $(srctree)/arch/x86/Makefile_32.cpu KBUILD_CFLAGS += $(cflags-y) - ifneq ($(call clang-min-version, 160000),y) - # https://github.com/llvm/llvm-project/issues/53645 - KBUILD_CFLAGS += -ffreestanding - endif - percpu_seg := fs else BITS := 64