arch/v850/Makefile

   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
  17 arch_dir = arch/v850
  18
  19 CFLAGS += -mv850e
  20 # r16 is a fixed pointer to the current task
  21 CFLAGS += -ffixed-r16 -mno-prolog-function
  22 CFLAGS += -fno-builtin
  23 CFLAGS += -D__linux__ -DUTS_SYSNAME=\"uClinux\"
  24
  25 # By default, build a kernel that runs on the gdb v850 simulator.
  26 KBUILD_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)
  31 LDFLAGS_MODULE += --unique=.gnu.linkonce.this_module
  32
  33 OBJCOPY_FLAGS_BLOB := -I binary -O elf32-little -B v850e
  34
  35
  36 head-y := $(arch_dir)/kernel/head.o $(arch_dir)/kernel/init_task.o
  37 core-y += $(arch_dir)/kernel/
  38 libs-y += $(arch_dir)/lib/
  39
  40
  41 # Deal with the initial contents of the root device
  42 ifdef ROOT_FS_IMAGE
  43 core-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.
  48 root_fs_image.o: root_fs_image_force
  49
  50 root_fs_image_force: $(ROOT_FS_IMAGE)
  51         $(OBJCOPY) $(OBJCOPY_FLAGS_BLOB) --rename-section .data=.root,alloc,load,readonly,data,contents $< root_fs_image.o
  52 endif
  53
  54 CLEAN_FILES += root_fs_image.o