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#

# cris/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

# for "archclean" and "archdep" for cleaning up and making dependencies for

# this architecture

#

# 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.

LD_SCRIPT=$(TOPDIR)/arch/cris/cris.ld

# A bug in ld prevents us from having a (constant-value) symbol in a

# "ORIGIN =" or "LENGTH =" expression.  We fix that by generating a

# linker file with the symbolic part of those expressions evaluated.

#  Unfortunately, there is trouble making vmlinux depend on anything we

# generate here, so we *always* regenerate the final linker script and

# replace the LD macro to get what we want.  Thankfully(?) vmlinux is

# always rebuilt (due to calling make recursively and not knowing if

# anything was rebuilt).

#  The shell script to build in some kind of dependency is really not

# necessary for reasons of speed.  It's there because always

# regenerating stuff (even for incremental linking of subsystems!) is

# even more nauseating.

LD = if [ ! -e $(LD_SCRIPT).tmp -o $(LD_SCRIPT) -nt $(LD_SCRIPT).tmp ]; then \

          sed -e s/@CONFIG_ETRAX_DRAM_VIRTUAL_BASE@/0x$(CONFIG_ETRAX_DRAM_VIRTUAL_BASE)/ \

              -e s/@CONFIG_ETRAX_DRAM_SIZE_M@/$(CONFIG_ETRAX_DRAM_SIZE)/ \

              < $(LD_SCRIPT) > $(LD_SCRIPT).tmp; \

     else true; \

     fi && $(CROSS_COMPILE)ld -mcrislinux

LINKFLAGS = -T $(LD_SCRIPT).tmp

# objcopy is used to make binary images from the resulting linked file

OBJCOPY := $(CROSS_COMPILE)objcopy -O binary -R .note -R .comment -S

# -mlinux enables -march=v10, -fno-underscores, -D__linux__ among others

CFLAGS := $(CFLAGS) -mlinux -pipe

ifdef CONFIG_ETRAX_KGDB

CFLAGS := $(subst -fomit-frame-pointer,,$(CFLAGS)) -g

CFLAGS += -fno-omit-frame-pointer

endif

AFLAGS += -mlinux

HEAD := arch/cris/kernel/head.o

SUBDIRS += arch/cris/kernel arch/cris/mm arch/cris/lib arch/cris/drivers

ifdef CONFIG_ETRAX_AXISFLASHMAP

# only build this if axis flash map is used, because they depend on

# each others config options

SUBDIRS += arch/cris/boot/rescue

endif

# Note that the order of .o files below is important is some cases

# (because initcalls are executed in the order they are linked)

# Never add any driver before mm.o!

CORE_FILES += arch/cris/kernel/kernel.o arch/cris/mm/mm.o

DRIVERS += arch/cris/drivers/drivers.o

LIBGCC = $(shell $(CC) $(CFLAGS) -print-file-name=libgcc.a)

LIBS := $(TOPDIR)/arch/cris/lib/lib.a $(LIBS) $(TOPDIR)/arch/cris/lib/lib.a $(LIBGCC)

arch/cris/kernel: dummy

        $(MAKE) linuxsubdirs SUBDIRS=arch/cris/kernel

arch/cris/mm: dummy

        $(MAKE) linuxsubdirs SUBDIRS=arch/cris/mm

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

vmlinux.bin: vmlinux

        $(OBJCOPY) vmlinux vmlinux.bin

timage: vmlinux.bin

        cat vmlinux.bin cramfs.img >timage

simimage: timage

        cp vmlinux.bin simvmlinux.bin

# the following will remake timage without compiling the kernel

# it does of course require that all object files exist...

cramfs:

## cramfs      - Creates a cramfs image

        mkcramfs -b 8192 -m romfs_meta.txt root cramfs.img

        cat vmlinux.bin cramfs.img >timage

clinux: vmlinux.bin decompress.bin rescue.bin

decompress.bin: dummy

        @make -C arch/cris/boot/compressed decompress.bin

rescue.bin: dummy

        @make -C arch/cris/boot/rescue rescue.bin

zImage: vmlinux.bin

## zImage     - Compressed kernel (gzip)

        @$(MAKEBOOT) zImage

compressed: zImage

archclean:

        @$(MAKEBOOT) clean

        rm -f timage vmlinux.bin cramfs.img

        rm -rf $(LD_SCRIPT).tmp

archmrproper:

archdep:

        @$(MAKEBOOT) dep