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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 $(srctree)/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 [ $(call 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 += $(call cc-option,-funit-at-a-time)
60endif
1# SPDX-License-Identifier: GPL-2.0
2core-y += arch/x86/crypto
3
4#
5# Disable SSE and other FP/SIMD instructions to match normal x86
6# This is required to work around issues in older LLVM versions, but breaks
7# GCC versions < 11. See:
8# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99652
9#
10ifeq ($(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