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#
# arch/arm/Makefile
#
# 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) 1995-2001 by Russell King

LINKFLAGS       :=-p -X -T arch/arm/vmlinux.lds
OBJCOPYFLAGS    :=-O binary -R .note -R .comment -S
GZFLAGS         :=-9
CFLAGS          +=-Uarm -fno-common -pipe

ifeq ($(CONFIG_FRAME_POINTER),y)
CFLAGS          :=$(CFLAGS:-fomit-frame-pointer=-mapcs -mno-sched-prolog)
endif

CFLAGS          :=$(CFLAGS:-O2=-Os)

ifeq ($(CONFIG_DEBUG_INFO),y)
CFLAGS          +=-g
endif

# Select CPU dependent flags.  Note that order of declaration is important;
# the options further down the list override previous items.
#
# Note!  For APCS-26 YOU MUST HAVE AN APCS-26 LIBGCC.A
#
apcs-y                          :=-mapcs-32
apcs-$(CONFIG_CPU_26)           :=-mapcs-26 -mcpu=arm3 -Os

# This selects which instruction set is used.
# Note that GCC is lame - it doesn't numerically define an
# architecture version macro, but instead defines a whole
# series of macros.
arch-y                          :=
arch-$(CONFIG_CPU_32v3)         :=-D__LINUX_ARM_ARCH__=3 -march=armv3
arch-$(CONFIG_CPU_32v4)         :=-D__LINUX_ARM_ARCH__=4 -march=armv4
arch-$(CONFIG_CPU_32v5)         :=-D__LINUX_ARM_ARCH__=5 -march=armv5

# This selects how we optimise for the processor.
tune-y                          :=
tune-$(CONFIG_CPU_ARM610)       :=-mtune=arm610
tune-$(CONFIG_CPU_ARM710)       :=-mtune=arm710
tune-$(CONFIG_CPU_ARM720T)      :=-mtune=arm7tdmi
tune-$(CONFIG_CPU_ARM920T)      :=-mtune=arm9tdmi
tune-$(CONFIG_CPU_ARM922T)      :=-mtune=arm9tdmi
tune-$(CONFIG_CPU_ARM926T)      :=-mtune=arm9tdmi
tune-$(CONFIG_CPU_SA110)        :=-mtune=strongarm110
tune-$(CONFIG_CPU_SA1100)       :=-mtune=strongarm1100

CFLAGS_BOOT     :=$(apcs-y) $(arch-y) $(tune-y) -mshort-load-bytes -msoft-float -Uarm
CFLAGS          +=$(apcs-y) $(arch-y) $(tune-y) -mshort-load-bytes -msoft-float -Uarm
AFLAGS          +=$(apcs-y) $(arch-y) -mno-fpu -msoft-float

ifeq ($(CONFIG_CPU_26),y)
PROCESSOR       := armo
  ifeq ($(CONFIG_ROM_KERNEL),y)
    DATAADDR     = 0x02080000
    TEXTADDR     = 0x03800000
    LDSCRIPT     = arch/arm/vmlinux-armo-rom.lds.in
  else
    TEXTADDR     = 0x02080000
    LDSCRIPT     = arch/arm/vmlinux-armo.lds.in
  endif
endif

ifeq ($(CONFIG_CPU_32),y)
PROCESSOR        = armv
TEXTADDR         = 0xC0008000
LDSCRIPT         = arch/arm/vmlinux-armv.lds.in
endif

ifeq ($(CONFIG_ARCH_ARCA5K),y)
MACHINE          = arc
endif

ifeq ($(CONFIG_ARCH_RPC),y)
MACHINE          = rpc
endif

ifeq ($(CONFIG_ARCH_EBSA110),y)
MACHINE          = ebsa110
CFLAGS_3c589_cs :=-DISA_SIXTEEN_BIT_PERIPHERAL
export CFLAGS_3c589_cs
endif

ifeq ($(CONFIG_ARCH_CLPS7500),y)
MACHINE          = clps7500
INCDIR           = cl7500
endif

ifeq ($(CONFIG_ARCH_RISCSTATION),y)
MACHINE          = riscstation
endif

ifeq ($(CONFIG_FOOTBRIDGE),y)
MACHINE          = footbridge
INCDIR           = ebsa285
endif

ifeq ($(CONFIG_ARCH_CO285),y)
TEXTADDR         = 0x60008000
MACHINE          = footbridge
INCDIR           = ebsa285
endif

ifeq ($(CONFIG_ARCH_FTVPCI),y)
MACHINE          = ftvpci
INCDIR           = nexuspci
endif

ifeq ($(CONFIG_ARCH_TBOX),y)
MACHINE          = tbox
endif

ifeq ($(CONFIG_ARCH_SHARK),y)
MACHINE          = shark
endif

ifeq ($(CONFIG_ARCH_SA1100),y)
ifeq ($(CONFIG_SA1111),y)
# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
TEXTADDR         = 0xc0208000
endif
MACHINE          = sa1100
endif

ifeq ($(CONFIG_ARCH_L7200),y)
MACHINE          = l7200
endif

ifeq ($(CONFIG_ARCH_INTEGRATOR),y)
MACHINE          = integrator
endif

ifeq ($(CONFIG_ARCH_AT91RM9200),y)
MACHINE          = at91rm9200
endif

ifeq ($(CONFIG_ARCH_MX1ADS),y)
MACHINE          = mx1ads
endif

ifeq ($(CONFIG_ARCH_CAMELOT),y)
MACHINE          = epxa
endif

ifeq ($(CONFIG_ARCH_CLPS711X),y)
TEXTADDR         = 0xc0028000
MACHINE          = clps711x
endif

ifeq ($(CONFIG_ARCH_FORTUNET),y)
TEXTADDR         = 0xc0208000
endif

ifeq ($(CONFIG_ARCH_ANAKIN),y)
MACHINE          = anakin
endif

ifeq ($(CONFIG_ARCH_OMAHA),y)
MACHINE                = omaha
endif

export  MACHINE PROCESSOR TEXTADDR GZFLAGS CFLAGS_BOOT OBJCOPYFLAGS

# Only set INCDIR if its not already defined above
# Grr, ?= doesn't work as all the other assignment operators do.  Make bug?
ifeq ($(origin INCDIR), undefined)
INCDIR          :=$(MACHINE)
endif

ifeq ($(origin DATAADDR), undefined)
DATAADDR        := .
endif

# If we have a machine-specific directory, then include it in the build.
MACHDIR         := arch/arm/mach-$(MACHINE)
ifeq ($(MACHDIR),$(wildcard $(MACHDIR)))
SUBDIRS         += $(MACHDIR)
CORE_FILES      := $(MACHDIR)/$(MACHINE).o $(CORE_FILES)
endif

HEAD            :=arch/arm/kernel/head-$(PROCESSOR).o \
                  arch/arm/kernel/init_task.o
SUBDIRS         +=arch/arm/kernel arch/arm/mm arch/arm/lib arch/arm/nwfpe
CORE_FILES      :=arch/arm/kernel/kernel.o arch/arm/mm/mm.o $(CORE_FILES)
LIBS            :=arch/arm/lib/lib.a $(LIBS)

ifeq ($(CONFIG_FPE_NWFPE),y)
LIBS            :=arch/arm/nwfpe/math-emu.o $(LIBS)
endif

# Only include fastfpe if it is part of the kernel tree.
FASTFPE         :=arch/arm/fastfpe
ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
SUBDIRS         +=$(FASTFPE)
ifeq ($(CONFIG_FPE_FASTFPE),y)
LIBS            :=arch/arm/fastfpe/fast-math-emu.o $(LIBS)
endif
endif

ifeq ($(findstring y,$(CONFIG_USB_OHCI_SA1111) $(CONFIG_USB_OHCI_AT91)),y)
   SUBDIRS      +=arch/arm/common
   CORE_FILES   +=arch/arm/common/nopci.o
endif

ifeq ($(findstring y,$(CONFIG_ARCH_CLPS7500) $(CONFIG_ARCH_L7200)),y)
SUBDIRS         +=drivers/acorn/char
DRIVERS         +=drivers/acorn/char/acorn-char.o
endif

ifeq ($(CONFIG_ARCH_RISCSTATION),y)
SUBDIRS         +=drivers/acorn/char
DRIVERS         +=drivers/acorn/char/acorn-char.o
endif

MAKEBOOT         =$(MAKE) -C arch/$(ARCH)/boot
MAKETOOLS        =$(MAKE) -C arch/$(ARCH)/tools

# The following is a hack to get 'constants.h' up
# to date before starting compilation

$(patsubst %,_dir_%, $(SUBDIRS)): maketools
$(patsubst %,_modsubdir_%,$(MOD_DIRS)): maketools

symlinks: include/asm-arm/.arch include/asm-arm/.proc

#       Update machine arch and proc symlinks if something which affects
#       them changed.  We use .arch and .proc to indicate when they were
#       updated last, otherwise make uses the target directory mtime.

include/asm-arm/.arch: $(wildcard include/config/arch/*.h)
ifneq ("$(INCDIR)","")
        @echo '  Making asm-arm/arch -> asm-arm/arch-$(INCDIR) symlink'
        @rm -f include/asm-arm/arch
        @ln -sf arch-$(INCDIR) include/asm-arm/arch
        @touch $@
else
        @echo '  No architecture defined.  You may want to use a pre-packaged config.  make a5k_config, ebsa110_config, footbridge_config, etc.'
endif

include/asm-arm/.proc: $(wildcard include/config/cpu/32.h) $(wildcard include/config/cpu/26.h)
ifneq ("$(INCDIR)","")
        @echo '  Making asm-arm/proc -> asm-arm/proc-$(PROCESSOR) symlink'
        @rm -f include/asm-arm/proc
        @ln -sf proc-$(PROCESSOR) include/asm-arm/proc
        @touch $@
else
        @echo '  No architecture defined.  You may want to use a pre-packaged config.  make a5k_config, ebsa110_config, footbridge_config, etc.'
endif

.PHONY: maketools
maketools: include/asm-arm/.arch include/asm-arm/.proc \
        include/asm-arm/constants.h include/linux/version.h checkbin
        @$(MAKETOOLS)

vmlinux: arch/arm/vmlinux.lds

arch/arm/vmlinux.lds: arch/arm/Makefile $(LDSCRIPT) \
        $(wildcard include/config/cpu/32.h) \
        $(wildcard include/config/cpu/26.h) \
        $(wildcard include/config/arch/*.h)
        @echo '  Generating $@'
        @sed 's/TEXTADDR/$(TEXTADDR)/;s/DATAADDR/$(DATAADDR)/' $(LDSCRIPT) >$@

arch/arm/kernel arch/arm/mm arch/arm/lib: dummy
        $(MAKE) CFLAGS="$(CFLAGS) $(CFLAGS_KERNEL)" $(subst $@, _dir_$@, $@)

bzImage zImage zinstall Image bootpImage install: vmlinux
        @$(MAKEBOOT) $@

CLEAN_FILES     += \
        arch/arm/vmlinux.lds

MRPROPER_FILES  += \
        arch/arm/tools/constants.h* \
        include/asm-arm/arch include/asm-arm/.arch \
        include/asm-arm/proc include/asm-arm/.proc \
        include/asm-arm/constants.h* \
        include/asm-arm/mach-types.h

# We use MRPROPER_FILES and CLEAN_FILES now
archmrproper: FORCE
        @/bin/true

archclean: FORCE
        @$(MAKEBOOT) clean

archdep: scripts/mkdep symlinks
        @$(MAKETOOLS) dep
        @$(MAKEBOOT) dep

# Ensure this is ld "2.9.5" or later
NEW_LINKER      := $(shell $(LD) --gc-sections --version >/dev/null 2>&1; echo $$?)

ifneq ($(NEW_LINKER),0)
checkbin: FORCE
        @echo '*** ${VERSION}.${PATCHLEVEL} kernels no longer build correctly with old versions of binutils.'
        @echo '*** Please upgrade your binutils to 2.9.5.'
        @false
else
checkbin: FORCE
        @true
endif

.PHONY: FORCE

# My testing targets (that short circuit a few dependencies)
zImg:;  @$(MAKEBOOT) zImage
Img:;   @$(MAKEBOOT) Image
i:;     @$(MAKEBOOT) install
zi:;    @$(MAKEBOOT) zinstall
bp:;    @$(MAKEBOOT) bootpImage

#
# Configuration targets.  Use these to select a
# configuration for your architecture
%_config:
        @( \
        CFG=$(@:_config=); \
        if [ -f arch/arm/def-configs/$$CFG ]; then \
          [ -f .config ] && mv -f .config .config.old; \
          cp arch/arm/def-configs/$$CFG .config; \
          echo "*** Default configuration for $$CFG installed"; \
          echo "*** Next, you may run 'make oldconfig'"; \
        else \
          echo "$$CFG does not exist"; \
        fi; \
        )