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#
# i386/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
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# for "archclean" cleaning up for this architecture.
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#
# This file is subject to the terms and conditions of the GNU General Public
# License.  See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1994 by Linus Torvalds
#
# 19990713  Artur Skawina <skawina@geocities.com>
#           Added '-march' and '-mpreferred-stack-boundary' support
#

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LDFLAGS		:= -m elf_i386
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OBJCOPYFLAGS	:= -O binary -R .note -R .comment -S
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LDFLAGS_vmlinux :=
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CFLAGS += -pipe

# prevent gcc from keeping the stack 16 byte aligned
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CFLAGS += $(call check_gcc,-mpreferred-stack-boundary=2,)
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align := $(subst -functions=0,,$(call check_gcc,-falign-functions=0,-malign-functions=0))

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cflags-$(CONFIG_M386)		+= -march=i386
cflags-$(CONFIG_M486)		+= -march=i486
cflags-$(CONFIG_M586)		+= -march=i586
cflags-$(CONFIG_M586TSC)	+= -march=i586
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cflags-$(CONFIG_M586MMX)	+= $(call check_gcc,-march=pentium-mmx,-march=i586)
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cflags-$(CONFIG_M686)		+= -march=i686
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cflags-$(CONFIG_MPENTIUMII)	+= $(call check_gcc,-march=pentium2,-march=i686)
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cflags-$(CONFIG_MPENTIUMIII)	+= $(call check_gcc,-march=pentium3,-march=i686)
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cflags-$(CONFIG_MPENTIUMM)	+= $(call check_gcc,-march=pentium3,-march=i686)
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cflags-$(CONFIG_MPENTIUM4)	+= $(call check_gcc,-march=pentium4,-march=i686)
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cflags-$(CONFIG_MK6)		+= -march=k6
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# Please note, that patches that add -march=athlon-xp and friends are pointless.
# They make zero difference whatsosever to performance at this time.
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cflags-$(CONFIG_MK7)		+= $(call check_gcc,-march=athlon,-march=i686 $(align)-functions=4)
cflags-$(CONFIG_MK8)		+= $(call check_gcc,-march=k8,$(call check_gcc,-march=athlon,-march=i686 $(align)-functions=4))
cflags-$(CONFIG_MCRUSOE)	+= -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
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cflags-$(CONFIG_MWINCHIPC6)	+= $(call check_gcc,-march=winchip-c6,-march=i586)
cflags-$(CONFIG_MWINCHIP2)	+= $(call check_gcc,-march=winchip2,-march=i586)
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cflags-$(CONFIG_MWINCHIP3D)	+= $(call check_gcc,-march=winchip2,-march=i586)
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cflags-$(CONFIG_MCYRIXIII)	+= $(call check_gcc,-march=c3,-march=i486) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
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cflags-$(CONFIG_MVIAC3_2)	+= $(call check_gcc,-march=c3-2,-march=i686)
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# AMD Elan support
cflags-$(CONFIG_X86_ELAN)	+= -march=i486

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# -mregparm=3 works ok on gcc-3.0 and later
#
GCC_VERSION			:= $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC))
cflags-$(CONFIG_REGPARM) 	+= $(shell if [ $(GCC_VERSION) -ge 0300 ] ; then echo "-mregparm=3"; fi ;)

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# Disable unit-at-a-time mode, it makes gcc use a lot more stack
# due to the lack of sharing of stacklots.
CFLAGS += $(call check_gcc,-fno-unit-at-a-time,)
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CFLAGS += $(cflags-y)
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# Default subarch .c files
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mcore-y  := mach-default

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# Voyager subarch support
mflags-$(CONFIG_X86_VOYAGER)	:= -Iinclude/asm-i386/mach-voyager
mcore-$(CONFIG_X86_VOYAGER)	:= mach-voyager
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# VISWS subarch support
mflags-$(CONFIG_X86_VISWS)	:= -Iinclude/asm-i386/mach-visws
mcore-$(CONFIG_X86_VISWS)	:= mach-visws
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# NUMAQ subarch support
mflags-$(CONFIG_X86_NUMAQ)	:= -Iinclude/asm-i386/mach-numaq
mcore-$(CONFIG_X86_NUMAQ)	:= mach-default
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# BIGSMP subarch support
mflags-$(CONFIG_X86_BIGSMP)	:= -Iinclude/asm-i386/mach-bigsmp
mcore-$(CONFIG_X86_BIGSMP)	:= mach-default

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#Summit subarch support
mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-i386/mach-summit
mcore-$(CONFIG_X86_SUMMIT)  := mach-default

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# generic subarchitecture
mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-i386/mach-generic
mcore-$(CONFIG_X86_GENERICARCH) := mach-default
core-$(CONFIG_X86_GENERICARCH) += arch/i386/mach-generic/

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# ES7000 subarch support
mflags-$(CONFIG_X86_ES7000)	:= -Iinclude/asm-i386/mach-es7000
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mcore-$(CONFIG_X86_ES7000)	:= mach-default
core-$(CONFIG_X86_ES7000)	:= arch/i386/mach-es7000/
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# default subarch .h files
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mflags-y += -Iinclude/asm-i386/mach-default
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head-y := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
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libs-y 					+= arch/i386/lib/
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core-y					+= arch/i386/kernel/ \
					   arch/i386/mm/ \
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					   arch/i386/$(mcore-y)/
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drivers-$(CONFIG_MATH_EMULATION)	+= arch/i386/math-emu/
drivers-$(CONFIG_PCI)			+= arch/i386/pci/
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# must be linked after kernel/
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drivers-$(CONFIG_OPROFILE)		+= arch/i386/oprofile/
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drivers-$(CONFIG_PM)			+= arch/i386/power/
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CFLAGS += $(mflags-y)
AFLAGS += $(mflags-y)
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boot := arch/i386/boot
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.PHONY: zImage bzImage compressed zlilo bzlilo \
	zdisk bzdisk fdimage fdimage144 fdimage288 install
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all: bzImage

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BOOTIMAGE=arch/i386/boot/bzImage
zImage zlilo zdisk: BOOTIMAGE=arch/i386/boot/zImage
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zImage bzImage: vmlinux
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	$(Q)$(MAKE) $(build)=$(boot) $(BOOTIMAGE)
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compressed: zImage

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zlilo bzlilo: vmlinux
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	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zlilo
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zdisk bzdisk: vmlinux
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	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zdisk
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install fdimage fdimage144 fdimage288: vmlinux
	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
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prepare: include/asm-$(ARCH)/asm_offsets.h
CLEAN_FILES += include/asm-$(ARCH)/asm_offsets.h

arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
				   include/config/MARKER

include/asm-$(ARCH)/asm_offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
	$(call filechk,gen-asm-offsets)

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archclean:
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	$(Q)$(MAKE) $(clean)=arch/i386/boot
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define archhelp
  echo  '* bzImage	- Compressed kernel image (arch/$(ARCH)/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'
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  echo  '  bzdisk       - Create a boot floppy in /dev/fd0'
  echo  '  fdimage      - Create a boot floppy image'
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endef

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CLEAN_FILES += arch/$(ARCH)/boot/fdimage arch/$(ARCH)/boot/mtools.conf