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
6 # Copyright (C) 2001 - 2005 Tensilica Inc.
7 # Copyright (C) 2014 Cadence Design Systems Inc.
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
15 # (Use VAR=<xtensa_config> to use another default compiler.)
17 variant-y := $(patsubst "%",%,$(CONFIG_XTENSA_VARIANT_NAME))
19 VARIANT = $(variant-y)
22 # Test for cross compiling
25 COMPILE_ARCH = $(shell uname -m)
27 ifneq ($(COMPILE_ARCH), xtensa)
29 CROSS_COMPILE = xtensa_$(VARIANT)-
34 # Platform configuration
36 platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000
37 platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss
38 platform-$(CONFIG_XTENSA_PLATFORM_S6105) := s6105
39 platform-$(CONFIG_XTENSA_PLATFORM_XTFPGA) := xtfpga
41 PLATFORM = $(platform-y)
44 # temporarily until string.h is fixed
45 KBUILD_CFLAGS += -ffreestanding -D__linux__
47 KBUILD_CFLAGS += -pipe -mlongcalls
49 KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,)
51 ifneq ($(CONFIG_LD_NO_RELAX),)
55 ifeq ($(shell echo __XTENSA_EB__ | $(CC) -E - | grep -v "\#"),1)
56 CHECKFLAGS += -D__XTENSA_EB__
58 ifeq ($(shell echo __XTENSA_EL__ | $(CC) -E - | grep -v "\#"),1)
59 CHECKFLAGS += -D__XTENSA_EL__
62 vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y))
63 plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y))
66 KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs))
68 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs))
71 KBUILD_DEFCONFIG := iss_defconfig
73 # Only build variant and/or platform if it includes a Makefile
75 buildvar := $(shell test -e $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/)
76 buildplf := $(shell test -e $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/)
80 LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
82 head-y := arch/xtensa/kernel/head.o
83 core-y += arch/xtensa/kernel/ arch/xtensa/mm/
84 core-y += $(buildvar) $(buildplf)
86 libs-y += arch/xtensa/lib/ $(LIBGCC)
87 drivers-$(CONFIG_OPROFILE) += arch/xtensa/oprofile/
89 ifneq ($(CONFIG_BUILTIN_DTB),"")
90 core-$(CONFIG_OF) += arch/xtensa/boot/dts/
93 boot := arch/xtensa/boot
100 $(Q)$(MAKE) $(build)=$(boot) $@
103 $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
106 @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'