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