linux/arch/v850/Makefile
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   1#
   2# arch/v850/Makefile
   3#
   4#  Copyright (C) 2001,02,03,05  NEC Corporation
   5#  Copyright (C) 2001,02,03,05  Miles Bader <miles@gnu.org>
   6#
   7# This file is included by the global makefile so that you can add your own
   8# architecture-specific flags and dependencies. Remember to do have actions
   9# for "archclean" and "archdep" for cleaning up and making dependencies for
  10# this architecture
  11#
  12# This file is subject to the terms and conditions of the GNU General Public
  13# License.  See the file "COPYING" in the main directory of this archive
  14# for more details.
  15#
  16
  17arch_dir = arch/v850
  18
  19KBUILD_CFLAGS += -mv850e
  20# r16 is a fixed pointer to the current task
  21KBUILD_CFLAGS += -ffixed-r16 -mno-prolog-function
  22KBUILD_CFLAGS += -fno-builtin
  23KBUILD_CFLAGS += -D__linux__ -DUTS_SYSNAME=\"uClinux\"
  24
  25# By default, build a kernel that runs on the gdb v850 simulator.
  26KBUILD_DEFCONFIG := sim_defconfig
  27
  28# This prevents the linker from consolidating the .gnu.linkonce.this_module
  29# section into .text (which the v850 default linker script for -r does for
  30# some reason)
  31LDFLAGS_MODULE += --unique=.gnu.linkonce.this_module
  32
  33OBJCOPY_FLAGS_BLOB := -I binary -O elf32-little -B v850e
  34
  35
  36head-y := $(arch_dir)/kernel/head.o $(arch_dir)/kernel/init_task.o
  37core-y += $(arch_dir)/kernel/
  38libs-y += $(arch_dir)/lib/
  39
  40
  41# Deal with the initial contents of the root device
  42ifdef ROOT_FS_IMAGE
  43core-y += root_fs_image.o
  44
  45# Because the kernel build-system erases all explicit .o build rules, we
  46# have to use an intermediate target to fool it into building for us.
  47# This results in it being built anew each time, but that's alright.
  48root_fs_image.o: root_fs_image_force
  49
  50root_fs_image_force: $(ROOT_FS_IMAGE)
  51        $(OBJCOPY) $(OBJCOPY_FLAGS_BLOB) --rename-section .data=.root,alloc,load,readonly,data,contents $< root_fs_image.o
  52endif
  53
  54CLEAN_FILES += root_fs_image.o
  55