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 ($(call gcc-min-version, 110000)$(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
15KBUILD_RUSTFLAGS += --target=$(objtree)/scripts/target.json
16
17ifeq ($(CONFIG_X86_32),y)
18START := 0x8048000
19
20KBUILD_LDFLAGS		+= -m elf_i386
21ELF_ARCH		:= i386
22ELF_FORMAT 		:= elf32-i386
23CHECKFLAGS	+= -D__i386__
24
25KBUILD_CFLAGS		+= $(call cc-option,-m32)
26KBUILD_AFLAGS		+= $(call cc-option,-m32)
27LINK-y			+= $(call cc-option,-m32)
28
29LDS_EXTRA		:= -Ui386
30export LDS_EXTRA
31
32# First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y.
33include $(srctree)/arch/x86/Makefile_32.cpu
34
35# prevent gcc from keeping the stack 16 byte aligned. Taken from i386.
36cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
37
38# Prevent sprintf in nfsd from being converted to strcpy and resulting in
39# an unresolved reference.
40cflags-y += -ffreestanding
41
42KBUILD_CFLAGS += $(cflags-y)
43
44else
45
46START := 0x60000000
47
48KBUILD_CFLAGS += -fno-builtin -m64
49
50CHECKFLAGS  += -m64 -D__x86_64__
51KBUILD_AFLAGS += -m64
52KBUILD_LDFLAGS += -m elf_x86_64
53KBUILD_CPPFLAGS += -m64
54
55ELF_ARCH := i386:x86-64
56ELF_FORMAT := elf64-x86-64
57
58# Not on all 64-bit distros /lib is a symlink to /lib64. PLD is an example.
59
60LINK-$(CONFIG_LD_SCRIPT_DYN_RPATH) += -Wl,-rpath,/lib64
61LINK-y += -m64
62
63endif
64