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_XTFPGA) := xtfpga
40 PLATFORM = $(platform-y)
43 # temporarily until string.h is fixed
44 KBUILD_CFLAGS += -ffreestanding -D__linux__
45 KBUILD_CFLAGS += -pipe -mlongcalls -mtext-section-literals
46 KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,)
47 KBUILD_CFLAGS += $(call cc-option,-mno-serialize-volatile,)
49 KBUILD_AFLAGS += -mlongcalls -mtext-section-literals
51 ifneq ($(CONFIG_LD_NO_RELAX),)
52 KBUILD_LDFLAGS := --no-relax
55 CHECKFLAGS += -D$(if $(CONFIG_CPU_BIG_ENDIAN),__XTENSA_EB__,__XTENSA_EL__)
57 vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y))
58 plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y))
60 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs))
62 KBUILD_DEFCONFIG := iss_defconfig
64 # Only build variant and/or platform if it includes a Makefile
66 buildvar := $(shell test -e $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/)
67 buildplf := $(shell test -e $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/)
71 LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
73 head-y := arch/xtensa/kernel/head.o
74 core-y += arch/xtensa/kernel/ arch/xtensa/mm/
75 core-y += $(buildvar) $(buildplf)
76 core-y += arch/xtensa/boot/dts/
78 libs-y += arch/xtensa/lib/ $(LIBGCC)
80 boot := arch/xtensa/boot
82 all Image zImage uImage xipImage: vmlinux
83 $(Q)$(MAKE) $(build)=$(boot) $@
86 $(Q)$(MAKE) $(build)=arch/xtensa/kernel/syscalls all
89 @echo '* Image - Kernel ELF image with reset vector'
90 @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
91 @echo '* uImage - U-Boot wrapped image'
92 @echo ' xipImage - XIP image'