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# 7KBUILD_CFLAGS += -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx 8KBUILD_RUSTFLAGS += -Ctarget-feature=-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-avx,-avx2 9 10ifeq ($(CONFIG_X86_32),y) 11START := 0x8048000 12 13KBUILD_LDFLAGS += -m elf_i386 14ELF_ARCH := i386 15ELF_FORMAT := elf32-i386 16CHECKFLAGS += -D__i386__ 17 18KBUILD_CFLAGS += $(call cc-option,-m32) 19KBUILD_AFLAGS += $(call cc-option,-m32) 20LINK-y += $(call cc-option,-m32) 21 22LDS_EXTRA := -Ui386 23export LDS_EXTRA 24 25# First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y. 26include $(srctree)/arch/x86/Makefile_32.cpu 27 28# prevent gcc from keeping the stack 16 byte aligned. Taken from i386. 29cflags-y += $(call cc-option,-mpreferred-stack-boundary=2) 30 31# Prevent sprintf in nfsd from being converted to strcpy and resulting in 32# an unresolved reference. 33cflags-y += -ffreestanding 34 35KBUILD_CFLAGS += $(cflags-y) 36 37else 38 39START := 0x60000000 40 41KBUILD_CFLAGS += -fno-builtin -m64 42 43CHECKFLAGS += -m64 -D__x86_64__ 44KBUILD_AFLAGS += -m64 45KBUILD_LDFLAGS += -m elf_x86_64 46KBUILD_CPPFLAGS += -m64 47 48ELF_ARCH := i386:x86-64 49ELF_FORMAT := elf64-x86-64 50 51# Not on all 64-bit distros /lib is a symlink to /lib64. PLD is an example. 52 53LINK-$(CONFIG_LD_SCRIPT_DYN_RPATH) += -Wl,-rpath,/lib64 54LINK-y += -m64 55 56endif 57