LXR linux/arch/tile/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# This file is included by the global makefile so that you can add your own
   7# architecture-specific flags and dependencies. Remember to do have actions
   8# for "archclean" and "archdep" for cleaning up and making dependencies for
   9# this architecture
  10
  11# If building with TILERA_ROOT set (i.e. using the Tilera Multicore
  12# Development Environment) we can set CROSS_COMPILE based on that.
  13# If we're not cross-compiling, make sure we're on the right architecture.
  14# Only bother to test for a few common targets, to avoid useless errors.
  15ifeq ($(CROSS_COMPILE),)
  16  ifdef TILERA_ROOT
  17    CROSS_COMPILE := $(TILERA_ROOT)/bin/tile-
  18  else
  19    goals := $(if $(MAKECMDGOALS), $(MAKECMDGOALS), all)
  20    ifneq ($(strip $(filter vmlinux modules all,$(goals))),)
  21      HOST_ARCH := $(shell uname -m)
  22      ifneq ($(HOST_ARCH),$(ARCH))
  23$(error Set TILERA_ROOT or CROSS_COMPILE when building $(ARCH) on $(HOST_ARCH))
  24      endif
  25    endif
  26  endif
  27endif
  28
  29# The tile compiler may emit .eh_frame information for backtracing.
  30# In kernel modules, this causes load failures due to unsupported relocations.
  31KBUILD_CFLAGS   += -fno-asynchronous-unwind-tables
  32
  33ifneq ($(CONFIG_DEBUG_EXTRA_FLAGS),"")
  34KBUILD_CFLAGS   += $(CONFIG_DEBUG_EXTRA_FLAGS)
  35endif
  36
  37LIBGCC_PATH     := \
  38  $(shell $(CC) $(KBUILD_CFLAGS) $(KCFLAGS) -print-libgcc-file-name)
  39
  40# Provide the path to use for "make defconfig".
  41# We default to the newer TILE-Gx architecture if only "tile" is given.
  42ifeq ($(ARCH),tile)
  43        KBUILD_DEFCONFIG := tilegx_defconfig
  44else
  45        KBUILD_DEFCONFIG := $(ARCH)_defconfig
  46endif
  47
  48# Used as a file extension when useful, e.g. head_$(BITS).o
  49# Not needed for (e.g.) "$(CC) -m32" since the compiler automatically
  50# uses the right default anyway.
  51export BITS
  52ifeq ($(CONFIG_TILEGX),y)
  53BITS := 64
  54else
  55BITS := 32
  56endif
  57
  58head-y          := arch/tile/kernel/head_$(BITS).o
  59
  60libs-y          += arch/tile/lib/
  61libs-y          += $(LIBGCC_PATH)
  62
  63# See arch/tile/Kbuild for content of core part of the kernel
  64core-y          += arch/tile/
  65
  66core-$(CONFIG_TILE_GXIO) += arch/tile/gxio/
  67
  68ifdef TILERA_ROOT
  69INSTALL_PATH ?= $(TILERA_ROOT)/tile/boot
  70endif
  71
  72install:
  73        install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
  74        install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
  75        install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
  76
  77define archhelp
  78        echo '  install         - install kernel into $(INSTALL_PATH)'
  79endef
  80