arch/xtensa/Makefile

   1 #
   2 # This file is subject to the terms and conditions of the GNU General Public
   3 # License.  See the file "COPYING" in the main directory of this archive
   4 # for more details.
   5 #
   6 # Copyright (C) 2001 - 2005  Tensilica Inc.
   7 #
   8 # This file is included by the global makefile so that you can add your own
   9 # architecture-specific flags and dependencies. Remember to do have actions
  10 # for "archclean" and "archdep" for cleaning up and making dependencies for
  11 # this architecture
  12
  13 # Core configuration.
  14 # (Use VAR=<xtensa_config> to use another default compiler.)
  15
  16 variant-$(CONFIG_XTENSA_VARIANT_FSF)            := fsf
  17 variant-$(CONFIG_XTENSA_VARIANT_DC232B)         := dc232b
  18 variant-$(CONFIG_XTENSA_VARIANT_LINUX_CUSTOM)   := custom
  19
  20 VARIANT = $(variant-y)
  21 export VARIANT
  22
  23 # Platform configuration
  24
  25 platform-$(CONFIG_XTENSA_PLATFORM_XT2000)       := xt2000
  26 platform-$(CONFIG_XTENSA_PLATFORM_ISS)          := iss
  27
  28 PLATFORM = $(platform-y)
  29 export PLATFORM
  30
  31 # temporarily until string.h is fixed
  32 KBUILD_CFLAGS += -ffreestanding
  33
  34 KBUILD_CFLAGS += -pipe -mlongcalls
  35
  36 vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y))
  37 plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y))
  38
  39 ifeq ($(KBUILD_SRC),)
  40 KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs))
  41 else
  42 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs))
  43 endif
  44
  45 KBUILD_DEFCONFIG := iss_defconfig
  46
  47 # ramdisk/initrd support
  48 # You need a compressed ramdisk image, named ramdisk.gz in
  49 # arch/xtensa/boot/ramdisk
  50
  51 core-$(CONFIG_EMBEDDED_RAMDISK) += arch/xtensa/boot/ramdisk/
  52
  53 # Test for cross compiling
  54
  55 ifneq ($(VARIANT),)
  56   COMPILE_ARCH = $(shell uname -m)
  57
  58   ifneq ($(COMPILE_ARCH), xtensa)
  59     ifndef CROSS_COMPILE
  60       CROSS_COMPILE = xtensa_$(VARIANT)-
  61     endif
  62   endif
  63 endif
  64
  65 #
  66
  67 LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
  68
  69 head-y          := arch/xtensa/kernel/head.o
  70 core-y          += arch/xtensa/kernel/ arch/xtensa/mm/
  71 ifneq ($(PLATFORM),)
  72 core-y          += arch/xtensa/platforms/$(PLATFORM)/
  73 endif
  74 libs-y          += arch/xtensa/lib/ $(LIBGCC)
  75
  76 boot            := arch/xtensa/boot
  77
  78
  79 all: zImage
  80
  81 bzImage : zImage
  82
  83 zImage zImage.initrd: vmlinux
  84         $(Q)$(MAKE) $(build)=$(boot) $@
  85
  86 define archhelp
  87   @echo '* zImage      - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
  88 endef
  89