LXR linux/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
  16variant-$(CONFIG_XTENSA_VARIANT_FSF)            := fsf
  17variant-$(CONFIG_XTENSA_VARIANT_DC232B)         := dc232b
  18variant-$(CONFIG_XTENSA_VARIANT_S6000)          := s6000
  19variant-$(CONFIG_XTENSA_VARIANT_LINUX_CUSTOM)   := custom
  20
  21VARIANT = $(variant-y)
  22export VARIANT
  23
  24# Platform configuration
  25
  26platform-$(CONFIG_XTENSA_PLATFORM_XT2000)       := xt2000
  27platform-$(CONFIG_XTENSA_PLATFORM_ISS)          := iss
  28platform-$(CONFIG_XTENSA_PLATFORM_S6105)        := s6105
  29
  30PLATFORM = $(platform-y)
  31export PLATFORM
  32
  33# temporarily until string.h is fixed
  34KBUILD_CFLAGS += -ffreestanding
  35
  36KBUILD_CFLAGS += -pipe -mlongcalls
  37
  38vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y))
  39plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y))
  40
  41ifeq ($(KBUILD_SRC),)
  42KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs))
  43else
  44KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs))
  45endif
  46
  47KBUILD_DEFCONFIG := iss_defconfig
  48
  49# ramdisk/initrd support
  50# You need a compressed ramdisk image, named ramdisk.gz in
  51# arch/xtensa/boot/ramdisk
  52
  53core-$(CONFIG_EMBEDDED_RAMDISK) += arch/xtensa/boot/ramdisk/
  54
  55# Test for cross compiling
  56
  57ifneq ($(VARIANT),)
  58  COMPILE_ARCH = $(shell uname -m)
  59
  60  ifneq ($(COMPILE_ARCH), xtensa)
  61    ifndef CROSS_COMPILE
  62      CROSS_COMPILE = xtensa_$(VARIANT)-
  63    endif
  64  endif
  65endif
  66
  67# Only build variant and/or platform if it includes a Makefile
  68
  69buildvar := $(shell test -a $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/)
  70buildplf := $(shell test -a $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/)
  71
  72# Find libgcc.a
  73
  74LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
  75
  76head-y          := arch/xtensa/kernel/head.o
  77core-y          += arch/xtensa/kernel/ arch/xtensa/mm/
  78core-y          += $(buildvar) $(buildplf)
  79
  80libs-y          += arch/xtensa/lib/ $(LIBGCC)
  81
  82boot            := arch/xtensa/boot
  83
  84all: zImage
  85
  86bzImage : zImage
  87
  88zImage zImage.initrd: vmlinux
  89        $(Q)$(MAKE) $(build)=$(boot) $@
  90
  91define archhelp
  92  @echo '* zImage      - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
  93endef
  94
  95