| # SPDX-License-Identifier: GPL-2.0 |
| core-y += arch/x86/crypto/ |
| |
| # |
| # Disable SSE and other FP/SIMD instructions to match normal x86 |
| # This is required to work around issues in older LLVM versions, but breaks |
| # GCC versions < 11. See: |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99652 |
| # |
| ifeq ($(CONFIG_CC_IS_CLANG),y) |
| KBUILD_CFLAGS += -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx |
| KBUILD_RUSTFLAGS += -Ctarget-feature=-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-avx,-avx2 |
| endif |
| |
| ifeq ($(CONFIG_X86_32),y) |
| START := 0x8048000 |
| |
| KBUILD_LDFLAGS += -m elf_i386 |
| ELF_ARCH := i386 |
| ELF_FORMAT := elf32-i386 |
| CHECKFLAGS += -D__i386__ |
| |
| KBUILD_CFLAGS += $(call cc-option,-m32) |
| KBUILD_AFLAGS += $(call cc-option,-m32) |
| LINK-y += $(call cc-option,-m32) |
| |
| LDS_EXTRA := -Ui386 |
| export LDS_EXTRA |
| |
| # First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y. |
| include arch/x86/Makefile_32.cpu |
| |
| # prevent gcc from keeping the stack 16 byte aligned. Taken from i386. |
| cflags-y += $(call cc-option,-mpreferred-stack-boundary=2) |
| |
| # Prevent sprintf in nfsd from being converted to strcpy and resulting in |
| # an unresolved reference. |
| cflags-y += -ffreestanding |
| |
| KBUILD_CFLAGS += $(cflags-y) |
| |
| else |
| |
| START := 0x60000000 |
| |
| KBUILD_CFLAGS += -fno-builtin -m64 |
| |
| CHECKFLAGS += -m64 -D__x86_64__ |
| KBUILD_AFLAGS += -m64 |
| KBUILD_LDFLAGS += -m elf_x86_64 |
| KBUILD_CPPFLAGS += -m64 |
| |
| ELF_ARCH := i386:x86-64 |
| ELF_FORMAT := elf64-x86-64 |
| |
| # Not on all 64-bit distros /lib is a symlink to /lib64. PLD is an example. |
| |
| LINK-$(CONFIG_LD_SCRIPT_DYN_RPATH) += -Wl,-rpath,/lib64 |
| LINK-y += -m64 |
| |
| endif |
