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# Copyright (C) 2014 Cadence Design Systems Inc.
   8#
   9# This file is included by the global makefile so that you can add your own
  10# architecture-specific flags and dependencies. Remember to do have actions
  11# for "archclean" and "archdep" for cleaning up and making dependencies for
  12# this architecture
  13
  14# Core configuration.
  15# (Use VAR=<xtensa_config> to use another default compiler.)
  16
  17variant-y := $(patsubst "%",%,$(CONFIG_XTENSA_VARIANT_NAME))
  18
  19VARIANT = $(variant-y)
  20
  21ifneq ($(VARIANT),)
  22  ifdef cross_compiling
  23    ifndef CROSS_COMPILE
  24      CROSS_COMPILE = xtensa_$(VARIANT)-
  25    endif
  26  endif
  27endif
  28
  29# Platform configuration
  30
  31platform-$(CONFIG_XTENSA_PLATFORM_XT2000)       := xt2000
  32platform-$(CONFIG_XTENSA_PLATFORM_ISS)          := iss
  33platform-$(CONFIG_XTENSA_PLATFORM_XTFPGA)       := xtfpga
  34
  35# temporarily until string.h is fixed
  36KBUILD_CFLAGS += -ffreestanding -D__linux__
  37KBUILD_CFLAGS += -pipe -mlongcalls -mtext-section-literals
  38KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,)
  39KBUILD_CFLAGS += $(call cc-option,-mno-serialize-volatile,)
  40
  41KBUILD_AFLAGS += -mlongcalls -mtext-section-literals
  42
  43ifneq ($(CONFIG_LD_NO_RELAX),)
  44KBUILD_LDFLAGS := --no-relax
  45endif
  46
  47CHECKFLAGS += -D$(if $(CONFIG_CPU_BIG_ENDIAN),__XTENSA_EB__,__XTENSA_EL__)
  48
  49vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y))
  50plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y))
  51
  52KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs))
  53
  54KBUILD_DEFCONFIG := iss_defconfig
  55
  56# Find libgcc.a
  57
  58LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
  59
  60head-y          := arch/xtensa/kernel/head.o
  61
  62libs-y          += arch/xtensa/lib/ $(LIBGCC)
  63
  64boot            := arch/xtensa/boot
  65
  66all Image zImage uImage xipImage: vmlinux
  67        $(Q)$(MAKE) $(build)=$(boot) $@
  68
  69archheaders:
  70        $(Q)$(MAKE) $(build)=arch/xtensa/kernel/syscalls all
  71
  72define archhelp
  73  @echo '* Image       - Kernel ELF image with reset vector'
  74  @echo '* zImage      - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
  75  @echo '* uImage      - U-Boot wrapped image'
  76  @echo '  xipImage    - XIP image'
  77endef
  78