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-$(CONFIG_XTENSA_VARIANT_S6000)          := s6000
  19 variant-$(CONFIG_XTENSA_VARIANT_LINUX_CUSTOM)   := custom
  20
  21 VARIANT = $(variant-y)
  22 export VARIANT
  23
  24 # Platform configuration
  25
  26 platform-$(CONFIG_XTENSA_PLATFORM_XT2000)       := xt2000
  27 platform-$(CONFIG_XTENSA_PLATFORM_ISS)          := iss
  28 platform-$(CONFIG_XTENSA_PLATFORM_S6105)        := s6105
  29
  30 PLATFORM = $(platform-y)
  31 export PLATFORM
  32
  33 # temporarily until string.h is fixed
  34 KBUILD_CFLAGS += -ffreestanding
  35
  36 KBUILD_CFLAGS += -pipe -mlongcalls
  37
  38 KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,)
  39
  40 vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y))
  41 plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y))
  42
  43 ifeq ($(KBUILD_SRC),)
  44 KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs))
  45 else
  46 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs))
  47 endif
  48
  49 KBUILD_DEFCONFIG := iss_defconfig
  50
  51 # ramdisk/initrd support
  52 # You need a compressed ramdisk image, named ramdisk.gz in
  53 # arch/xtensa/boot/ramdisk
  54
  55 core-$(CONFIG_EMBEDDED_RAMDISK) += arch/xtensa/boot/ramdisk/
  56
  57 # Test for cross compiling
  58
  59 ifneq ($(VARIANT),)
  60   COMPILE_ARCH = $(shell uname -m)
  61
  62   ifneq ($(COMPILE_ARCH), xtensa)
  63     ifndef CROSS_COMPILE
  64       CROSS_COMPILE = xtensa_$(VARIANT)-
  65     endif
  66   endif
  67 endif
  68
  69 # Only build variant and/or platform if it includes a Makefile
  70
  71 buildvar := $(shell test -a $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/)
  72 buildplf := $(shell test -a $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/)
  73
  74 # Find libgcc.a
  75
  76 LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
  77
  78 head-y          := arch/xtensa/kernel/head.o
  79 core-y          += arch/xtensa/kernel/ arch/xtensa/mm/
  80 core-y          += $(buildvar) $(buildplf)
  81
  82 libs-y          += arch/xtensa/lib/ $(LIBGCC)
  83
  84 boot            := arch/xtensa/boot
  85
  86 all: zImage
  87
  88 bzImage : zImage
  89
  90 zImage zImage.initrd: vmlinux
  91         $(Q)$(MAKE) $(build)=$(boot) $@
  92
  93 define archhelp
  94   @echo '* zImage      - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
  95 endef
  96