1# SPDX-License-Identifier: GPL-2.0 2core-y += arch/x86/crypto/ 3 4# 5# Disable SSE and other FP/SIMD instructions to match normal x86 6# This is required to work around issues in older LLVM versions, but breaks 7# GCC versions < 11. See: 8# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99652 9# 10ifeq ($(CONFIG_CC_IS_CLANG),y) 11KBUILD_CFLAGS += -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx 12KBUILD_RUSTFLAGS += -Ctarget-feature=-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-avx,-avx2 13endif 14 15ifeq ($(CONFIG_X86_32),y) 16START := 0x8048000 17 18KBUILD_LDFLAGS += -m elf_i386 19ELF_ARCH := i386 20ELF_FORMAT := elf32-i386 21CHECKFLAGS += -D__i386__ 22 23KBUILD_CFLAGS += $(call cc-option,-m32) 24KBUILD_AFLAGS += $(call cc-option,-m32) 25LINK-y += $(call cc-option,-m32) 26 27LDS_EXTRA := -Ui386 28export LDS_EXTRA 29 30# First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y. 31include $(srctree)/arch/x86/Makefile_32.cpu 32 33# prevent gcc from keeping the stack 16 byte aligned. Taken from i386. 34cflags-y += $(call cc-option,-mpreferred-stack-boundary=2) 35 36# Prevent sprintf in nfsd from being converted to strcpy and resulting in 37# an unresolved reference. 38cflags-y += -ffreestanding 39 40KBUILD_CFLAGS += $(cflags-y) 41 42else 43 44START := 0x60000000 45 46KBUILD_CFLAGS += -fno-builtin -m64 47 48CHECKFLAGS += -m64 -D__x86_64__ 49KBUILD_AFLAGS += -m64 50KBUILD_LDFLAGS += -m elf_x86_64 51KBUILD_CPPFLAGS += -m64 52 53ELF_ARCH := i386:x86-64 54ELF_FORMAT := elf64-x86-64 55 56# Not on all 64-bit distros /lib is a symlink to /lib64. PLD is an example. 57 58LINK-$(CONFIG_LD_SCRIPT_DYN_RPATH) += -Wl,-rpath,/lib64 59LINK-y += -m64 60 61endif 62