[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/x86/Makefile b/src/kernel/linux/v4.14/arch/x86/Makefile
new file mode 100644
index 0000000..62ec0e7
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/x86/Makefile
@@ -0,0 +1,359 @@
+# SPDX-License-Identifier: GPL-2.0
+# Unified Makefile for i386 and x86_64
+
+# select defconfig based on actual architecture
+ifeq ($(ARCH),x86)
+ ifeq ($(shell uname -m),x86_64)
+ KBUILD_DEFCONFIG := x86_64_defconfig
+ else
+ KBUILD_DEFCONFIG := i386_defconfig
+ endif
+else
+ KBUILD_DEFCONFIG := $(ARCH)_defconfig
+endif
+
+# For gcc stack alignment is specified with -mpreferred-stack-boundary,
+# clang has the option -mstack-alignment for that purpose.
+ifneq ($(call cc-option, -mpreferred-stack-boundary=4),)
+ cc_stack_align4 := -mpreferred-stack-boundary=2
+ cc_stack_align8 := -mpreferred-stack-boundary=3
+else ifneq ($(call cc-option, -mstack-alignment=16),)
+ cc_stack_align4 := -mstack-alignment=4
+ cc_stack_align8 := -mstack-alignment=8
+endif
+
+# How to compile the 16-bit code. Note we always compile for -march=i386;
+# that way we can complain to the user if the CPU is insufficient.
+#
+# The -m16 option is supported by GCC >= 4.9 and clang >= 3.5. For
+# older versions of GCC, include an *assembly* header to make sure that
+# gcc doesn't play any games behind our back.
+CODE16GCC_CFLAGS := -m32 -Wa,$(srctree)/arch/x86/boot/code16gcc.h
+M16_CFLAGS := $(call cc-option, -m16, $(CODE16GCC_CFLAGS))
+
+REALMODE_CFLAGS := $(M16_CFLAGS) -g -Os -D__KERNEL__ \
+ -DDISABLE_BRANCH_PROFILING \
+ -Wall -Wstrict-prototypes -march=i386 -mregparm=3 \
+ -fno-strict-aliasing -fomit-frame-pointer -fno-pic \
+ -mno-mmx -mno-sse
+
+REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), -ffreestanding)
+REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), -fno-stack-protector)
+REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), -Wno-address-of-packed-member)
+REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), $(cc_stack_align4))
+export REALMODE_CFLAGS
+
+# BITS is used as extension for files which are available in a 32 bit
+# and a 64 bit version to simplify shared Makefiles.
+# e.g.: obj-y += foo_$(BITS).o
+export BITS
+
+ifdef CONFIG_X86_NEED_RELOCS
+ LDFLAGS_vmlinux := --emit-relocs --discard-none
+endif
+
+#
+# Prevent GCC from generating any FP code by mistake.
+#
+# This must happen before we try the -mpreferred-stack-boundary, see:
+#
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53383
+#
+KBUILD_CFLAGS += -mno-sse -mno-mmx -mno-sse2 -mno-3dnow
+KBUILD_CFLAGS += $(call cc-option,-mno-avx,)
+
+ifeq ($(CONFIG_X86_32),y)
+ BITS := 32
+ UTS_MACHINE := i386
+ CHECKFLAGS += -D__i386__
+
+ biarch := $(call cc-option,-m32)
+ KBUILD_AFLAGS += $(biarch)
+ KBUILD_CFLAGS += $(biarch)
+
+ KBUILD_CFLAGS += -msoft-float -mregparm=3 -freg-struct-return
+
+ # Never want PIC in a 32-bit kernel, prevent breakage with GCC built
+ # with nonstandard options
+ KBUILD_CFLAGS += -fno-pic
+
+ # Align the stack to the register width instead of using the default
+ # alignment of 16 bytes. This reduces stack usage and the number of
+ # alignment instructions.
+ KBUILD_CFLAGS += $(call cc-option,$(cc_stack_align4))
+
+ # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
+ # a lot more stack due to the lack of sharing of stacklots:
+ KBUILD_CFLAGS += $(call cc-ifversion, -lt, 0400, \
+ $(call cc-option,-fno-unit-at-a-time))
+
+ # CPU-specific tuning. Anything which can be shared with UML should go here.
+ include arch/x86/Makefile_32.cpu
+ KBUILD_CFLAGS += $(cflags-y)
+
+ # temporary until string.h is fixed
+ KBUILD_CFLAGS += -ffreestanding
+else
+ BITS := 64
+ UTS_MACHINE := x86_64
+ CHECKFLAGS += -D__x86_64__ -m64
+
+ biarch := -m64
+ KBUILD_AFLAGS += -m64
+ KBUILD_CFLAGS += -m64
+
+ # Align jump targets to 1 byte, not the default 16 bytes:
+ KBUILD_CFLAGS += $(call cc-option,-falign-jumps=1)
+
+ # Pack loops tightly as well:
+ KBUILD_CFLAGS += $(call cc-option,-falign-loops=1)
+
+ # Don't autogenerate traditional x87 instructions
+ KBUILD_CFLAGS += $(call cc-option,-mno-80387)
+ KBUILD_CFLAGS += $(call cc-option,-mno-fp-ret-in-387)
+
+ KBUILD_CFLAGS += -fno-pic
+
+ # By default gcc and clang use a stack alignment of 16 bytes for x86.
+ # However the standard kernel entry on x86-64 leaves the stack on an
+ # 8-byte boundary. If the compiler isn't informed about the actual
+ # alignment it will generate extra alignment instructions for the
+ # default alignment which keep the stack *mis*aligned.
+ # Furthermore an alignment to the register width reduces stack usage
+ # and the number of alignment instructions.
+ KBUILD_CFLAGS += $(call cc-option,$(cc_stack_align8))
+
+ # Use -mskip-rax-setup if supported.
+ KBUILD_CFLAGS += $(call cc-option,-mskip-rax-setup)
+
+ # FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu)
+ cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
+ cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
+
+ cflags-$(CONFIG_MCORE2) += \
+ $(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
+ cflags-$(CONFIG_MATOM) += $(call cc-option,-march=atom) \
+ $(call cc-option,-mtune=atom,$(call cc-option,-mtune=generic))
+ cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
+ KBUILD_CFLAGS += $(cflags-y)
+
+ KBUILD_CFLAGS += -mno-red-zone
+ KBUILD_CFLAGS += -mcmodel=kernel
+
+ # -funit-at-a-time shrinks the kernel .text considerably
+ # unfortunately it makes reading oopses harder.
+ KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
+endif
+
+ifdef CONFIG_X86_X32
+ x32_ld_ok := $(call try-run,\
+ /bin/echo -e '1: .quad 1b' | \
+ $(CC) $(KBUILD_AFLAGS) -c -x assembler -o "$$TMP" - && \
+ $(OBJCOPY) -O elf32-x86-64 "$$TMP" "$$TMPO" && \
+ $(LD) -m elf32_x86_64 "$$TMPO" -o "$$TMP",y,n)
+ ifeq ($(x32_ld_ok),y)
+ CONFIG_X86_X32_ABI := y
+ KBUILD_AFLAGS += -DCONFIG_X86_X32_ABI
+ KBUILD_CFLAGS += -DCONFIG_X86_X32_ABI
+ else
+ $(warning CONFIG_X86_X32 enabled but no binutils support)
+ endif
+endif
+export CONFIG_X86_X32_ABI
+
+#
+# If the function graph tracer is used with mcount instead of fentry,
+# '-maccumulate-outgoing-args' is needed to prevent a GCC bug
+# (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42109)
+#
+ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ ifndef CONFIG_HAVE_FENTRY
+ ACCUMULATE_OUTGOING_ARGS := 1
+ else
+ ifeq ($(call cc-option-yn, -mfentry), n)
+ ACCUMULATE_OUTGOING_ARGS := 1
+
+ # GCC ignores '-maccumulate-outgoing-args' when used with '-Os'.
+ # If '-Os' is enabled, disable it and print a warning.
+ ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
+ undefine CONFIG_CC_OPTIMIZE_FOR_SIZE
+ $(warning Disabling CONFIG_CC_OPTIMIZE_FOR_SIZE. Your compiler does not have -mfentry so you cannot optimize for size with CONFIG_FUNCTION_GRAPH_TRACER.)
+ endif
+
+ endif
+ endif
+endif
+
+#
+# Jump labels need '-maccumulate-outgoing-args' for gcc < 4.5.2 to prevent a
+# GCC bug (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46226). There's no way
+# to test for this bug at compile-time because the test case needs to execute,
+# which is a no-go for cross compilers. So check the GCC version instead.
+#
+ifdef CONFIG_JUMP_LABEL
+ ifneq ($(ACCUMULATE_OUTGOING_ARGS), 1)
+ ACCUMULATE_OUTGOING_ARGS = $(call cc-if-fullversion, -lt, 040502, 1)
+ endif
+endif
+
+ifeq ($(ACCUMULATE_OUTGOING_ARGS), 1)
+ # This compiler flag is not supported by Clang:
+ KBUILD_CFLAGS += $(call cc-option,-maccumulate-outgoing-args,)
+endif
+
+# Stackpointer is addressed different for 32 bit and 64 bit x86
+sp-$(CONFIG_X86_32) := esp
+sp-$(CONFIG_X86_64) := rsp
+
+# do binutils support CFI?
+cfi := $(call as-instr,.cfi_startproc\n.cfi_rel_offset $(sp-y)$(comma)0\n.cfi_endproc,-DCONFIG_AS_CFI=1)
+# is .cfi_signal_frame supported too?
+cfi-sigframe := $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1)
+cfi-sections := $(call as-instr,.cfi_sections .debug_frame,-DCONFIG_AS_CFI_SECTIONS=1)
+
+# does binutils support specific instructions?
+asinstr := $(call as-instr,fxsaveq (%rax),-DCONFIG_AS_FXSAVEQ=1)
+asinstr += $(call as-instr,pshufb %xmm0$(comma)%xmm0,-DCONFIG_AS_SSSE3=1)
+asinstr += $(call as-instr,crc32l %eax$(comma)%eax,-DCONFIG_AS_CRC32=1)
+avx_instr := $(call as-instr,vxorps %ymm0$(comma)%ymm1$(comma)%ymm2,-DCONFIG_AS_AVX=1)
+avx2_instr :=$(call as-instr,vpbroadcastb %xmm0$(comma)%ymm1,-DCONFIG_AS_AVX2=1)
+avx512_instr :=$(call as-instr,vpmovm2b %k1$(comma)%zmm5,-DCONFIG_AS_AVX512=1)
+sha1_ni_instr :=$(call as-instr,sha1msg1 %xmm0$(comma)%xmm1,-DCONFIG_AS_SHA1_NI=1)
+sha256_ni_instr :=$(call as-instr,sha256msg1 %xmm0$(comma)%xmm1,-DCONFIG_AS_SHA256_NI=1)
+
+KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr)
+KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr)
+
+LDFLAGS := -m elf_$(UTS_MACHINE)
+
+#
+# The 64-bit kernel must be aligned to 2MB. Pass -z max-page-size=0x200000 to
+# the linker to force 2MB page size regardless of the default page size used
+# by the linker.
+#
+ifdef CONFIG_X86_64
+LDFLAGS += $(call ld-option, -z max-page-size=0x200000)
+endif
+
+# Speed up the build
+KBUILD_CFLAGS += -pipe
+# Workaround for a gcc prelease that unfortunately was shipped in a suse release
+KBUILD_CFLAGS += -Wno-sign-compare
+#
+KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
+
+# Avoid indirect branches in kernel to deal with Spectre
+ifdef CONFIG_RETPOLINE
+ KBUILD_CFLAGS += $(RETPOLINE_CFLAGS)
+ # Additionally, avoid generating expensive indirect jumps which
+ # are subject to retpolines for small number of switch cases.
+ # clang turns off jump table generation by default when under
+ # retpoline builds, however, gcc does not for x86. This has
+ # only been fixed starting from gcc stable version 8.4.0 and
+ # onwards, but not for older ones. See gcc bug #86952.
+ ifneq ($(cc-name), clang)
+ KBUILD_CFLAGS += $(call cc-option,-fno-jump-tables)
+ endif
+endif
+
+archscripts: scripts_basic
+ $(Q)$(MAKE) $(build)=arch/x86/tools relocs
+
+###
+# Syscall table generation
+
+archheaders:
+ $(Q)$(MAKE) $(build)=arch/x86/entry/syscalls all
+
+archprepare:
+ifeq ($(CONFIG_KEXEC_FILE),y)
+ $(Q)$(MAKE) $(build)=arch/x86/purgatory arch/x86/purgatory/kexec-purgatory.c
+endif
+ifdef CONFIG_RETPOLINE
+ifeq ($(RETPOLINE_CFLAGS),)
+ @echo "You are building kernel with non-retpoline compiler." >&2
+ @echo "Please update your compiler." >&2
+ @false
+endif
+endif
+
+###
+# Kernel objects
+
+head-y := arch/x86/kernel/head_$(BITS).o
+head-y += arch/x86/kernel/head$(BITS).o
+head-y += arch/x86/kernel/ebda.o
+head-y += arch/x86/kernel/platform-quirks.o
+
+libs-y += arch/x86/lib/
+
+# See arch/x86/Kbuild for content of core part of the kernel
+core-y += arch/x86/
+
+# drivers-y are linked after core-y
+drivers-$(CONFIG_MATH_EMULATION) += arch/x86/math-emu/
+drivers-$(CONFIG_PCI) += arch/x86/pci/
+
+# must be linked after kernel/
+drivers-$(CONFIG_OPROFILE) += arch/x86/oprofile/
+
+# suspend and hibernation support
+drivers-$(CONFIG_PM) += arch/x86/power/
+
+drivers-$(CONFIG_FB) += arch/x86/video/
+
+####
+# boot loader support. Several targets are kept for legacy purposes
+
+boot := arch/x86/boot
+
+BOOT_TARGETS = bzlilo bzdisk fdimage fdimage144 fdimage288 isoimage
+
+PHONY += bzImage $(BOOT_TARGETS)
+
+# Default kernel to build
+all: bzImage
+
+# KBUILD_IMAGE specify target image being built
+KBUILD_IMAGE := $(boot)/bzImage
+
+bzImage: vmlinux
+ifeq ($(CONFIG_X86_DECODER_SELFTEST),y)
+ $(Q)$(MAKE) $(build)=arch/x86/tools posttest
+endif
+ $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
+ $(Q)mkdir -p $(objtree)/arch/$(UTS_MACHINE)/boot
+ $(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/$(UTS_MACHINE)/boot/$@
+
+$(BOOT_TARGETS): vmlinux
+ $(Q)$(MAKE) $(build)=$(boot) $@
+
+PHONY += install
+install:
+ $(Q)$(MAKE) $(build)=$(boot) $@
+
+PHONY += vdso_install
+vdso_install:
+ $(Q)$(MAKE) $(build)=arch/x86/entry/vdso $@
+
+archclean:
+ $(Q)rm -rf $(objtree)/arch/i386
+ $(Q)rm -rf $(objtree)/arch/x86_64
+ $(Q)$(MAKE) $(clean)=$(boot)
+ $(Q)$(MAKE) $(clean)=arch/x86/tools
+ $(Q)$(MAKE) $(clean)=arch/x86/purgatory
+
+define archhelp
+ echo '* bzImage - Compressed kernel image (arch/x86/boot/bzImage)'
+ echo ' install - Install kernel using'
+ echo ' (your) ~/bin/$(INSTALLKERNEL) or'
+ echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
+ echo ' install to $$(INSTALL_PATH) and run lilo'
+ echo ' fdimage - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
+ echo ' fdimage144 - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
+ echo ' fdimage288 - Create 2.8MB boot floppy image (arch/x86/boot/fdimage)'
+ echo ' isoimage - Create a boot CD-ROM image (arch/x86/boot/image.iso)'
+ echo ' bzdisk/fdimage*/isoimage also accept:'
+ echo ' FDARGS="..." arguments for the booted kernel'
+ echo ' FDINITRD=file initrd for the booted kernel'
+endef