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 ($(CONFIG_CC_IS_CLANG),y)
11KBUILD_CFLAGS += -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx
12KBUILD_RUSTFLAGS += --target=$(objtree)/scripts/target.json
13KBUILD_RUSTFLAGS += -Ctarget-feature=-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-avx,-avx2
14endif
15
16ifeq ($(CONFIG_X86_32),y)
17START := 0x8048000
18
19KBUILD_LDFLAGS		+= -m elf_i386
20ELF_ARCH		:= i386
21ELF_FORMAT 		:= elf32-i386
22CHECKFLAGS	+= -D__i386__
23
24KBUILD_CFLAGS		+= $(call cc-option,-m32)
25KBUILD_AFLAGS		+= $(call cc-option,-m32)
26LINK-y			+= $(call cc-option,-m32)
27
 
 
28LDS_EXTRA		:= -Ui386
29export LDS_EXTRA
30
31# First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y.
32include $(srctree)/arch/x86/Makefile_32.cpu
33
34# prevent gcc from keeping the stack 16 byte aligned. Taken from i386.
35cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
36
37# Prevent sprintf in nfsd from being converted to strcpy and resulting in
38# an unresolved reference.
39cflags-y += -ffreestanding
40
 
 
 
 
 
 
 
41KBUILD_CFLAGS += $(cflags-y)
42
43else
44
45START := 0x60000000
46
47KBUILD_CFLAGS += -fno-builtin -m64 
48
49CHECKFLAGS  += -m64 -D__x86_64__
50KBUILD_AFLAGS += -m64
51KBUILD_LDFLAGS += -m elf_x86_64
52KBUILD_CPPFLAGS += -m64
53
54ELF_ARCH := i386:x86-64
55ELF_FORMAT := elf64-x86-64
56
57# Not on all 64-bit distros /lib is a symlink to /lib64. PLD is an example.
58
59LINK-$(CONFIG_LD_SCRIPT_DYN_RPATH) += -Wl,-rpath,/lib64
60LINK-y += -m64
61
 
 
62endif

 
 1core-y += arch/x86/crypto
 2
 
 
 
 
 
 
 
 
 
 
 
 
 3ifeq ($(CONFIG_X86_32),y)
 4START := 0x8048000
 5
 6LDFLAGS			+= -m elf_i386
 7ELF_ARCH		:= i386
 8ELF_FORMAT 		:= elf32-i386
 9CHECKFLAGS	+= -D__i386__
10
11KBUILD_CFLAGS		+= $(call cc-option,-m32)
12KBUILD_AFLAGS		+= $(call cc-option,-m32)
13LINK-y			+= $(call cc-option,-m32)
14
15export LDFLAGS
16
17LDS_EXTRA		:= -Ui386
18export LDS_EXTRA
19
20# First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y.
21include arch/x86/Makefile_32.cpu
22
23# prevent gcc from keeping the stack 16 byte aligned. Taken from i386.
24cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
25
26# Prevent sprintf in nfsd from being converted to strcpy and resulting in
27# an unresolved reference.
28cflags-y += -ffreestanding
29
30# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
31# a lot more stack due to the lack of sharing of stacklots.  Also, gcc
32# 4.3.0 needs -funit-at-a-time for extern inline functions.
33KBUILD_CFLAGS += $(shell if [ $(cc-version) -lt 0400 ] ; then \
34			echo $(call cc-option,-fno-unit-at-a-time); \
35			else echo $(call cc-option,-funit-at-a-time); fi ;)
36
37KBUILD_CFLAGS += $(cflags-y)
38
39else
40
41START := 0x60000000
42
43KBUILD_CFLAGS += -fno-builtin -m64 
44
45CHECKFLAGS  += -m64 -D__x86_64__
46KBUILD_AFLAGS += -m64
47LDFLAGS += -m elf_x86_64
48KBUILD_CPPFLAGS += -m64
49
50ELF_ARCH := i386:x86-64
51ELF_FORMAT := elf64-x86-64
52
53# Not on all 64-bit distros /lib is a symlink to /lib64. PLD is an example.
54
55LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib64
56LINK-y += -m64
57
58# Do unit-at-a-time unconditionally on x86_64, following the host
59KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
60endif