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 = $(variant-y)
24 CROSS_COMPILE = xtensa_$(VARIANT)-
29 # Platform configuration
31 platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000
32 platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss
33 platform-$(CONFIG_XTENSA_PLATFORM_XTFPGA) := xtfpga
35 PLATFORM = $(platform-y)
37 # temporarily until string.h is fixed
38 KBUILD_CFLAGS += -ffreestanding -D__linux__
39 KBUILD_CFLAGS += -pipe -mlongcalls -mtext-section-literals
40 KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,)
41 KBUILD_CFLAGS += $(call cc-option,-mno-serialize-volatile,)
43 KBUILD_AFLAGS += -mlongcalls -mtext-section-literals
45 ifneq ($(CONFIG_LD_NO_RELAX),)
46 KBUILD_LDFLAGS := --no-relax
49 CHECKFLAGS += -D$(if $(CONFIG_CPU_BIG_ENDIAN),__XTENSA_EB__,__XTENSA_EL__)
51 vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y))
52 plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y))
54 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs))
56 KBUILD_DEFCONFIG := iss_defconfig
58 # Only build variant and/or platform if it includes a Makefile
60 buildvar := $(shell test -e $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/)
61 buildplf := $(shell test -e $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/)
65 LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
67 head-y := arch/xtensa/kernel/head.o
68 core-y += arch/xtensa/kernel/ arch/xtensa/mm/
69 core-y += $(buildvar) $(buildplf)
70 core-y += arch/xtensa/boot/dts/
72 libs-y += arch/xtensa/lib/ $(LIBGCC)
74 boot := arch/xtensa/boot
76 all Image zImage uImage xipImage: vmlinux
77 $(Q)$(MAKE) $(build)=$(boot) $@
80 $(Q)$(MAKE) $(build)=arch/xtensa/kernel/syscalls all
83 @echo '* Image - Kernel ELF image with reset vector'
84 @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
85 @echo '* uImage - U-Boot wrapped image'
86 @echo ' xipImage - XIP image'