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. 11 12 # Core configuration. 13 # (Use VAR=<xtensa_config> to use another default compiler.) 14 15 variant-y := $(CONFIG_XTENSA_VARIANT_NAME) 16 17 VARIANT = $(variant-y) 18 19 ifneq ($(VARIANT),) 20 ifdef cross_compiling 21 ifndef CROSS_COMPILE 22 CROSS_COMPILE = xtensa_$(VARIANT)- 23 endif 24 endif 25 endif 26 27 # Platform configuration 28 29 platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000 30 platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss 31 platform-$(CONFIG_XTENSA_PLATFORM_XTFPGA) := xtfpga 32 33 # temporarily until string.h is fixed 34 KBUILD_CFLAGS += -ffreestanding -D__linux__ 35 KBUILD_CFLAGS += -pipe -mlongcalls -mtext-section-literals 36 KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,) 37 KBUILD_CFLAGS += $(call cc-option,-mno-serialize-volatile,) 38 KBUILD_CFLAGS += $(call cc-option,-mno-fdpic,) 39 ifneq ($(CONFIG_KERNEL_ABI_CALL0),) 40 KBUILD_CFLAGS += -mabi=call0 41 KBUILD_AFLAGS += -mabi=call0 42 endif 43 44 KBUILD_AFLAGS += -mlongcalls -mtext-section-literals 45 KBUILD_AFLAGS += $(call cc-option,-mno-fdpic,) 46 47 KBUILD_LDFLAGS += -m elf32xtensa 48 49 ifneq ($(CONFIG_LD_NO_RELAX),) 50 KBUILD_LDFLAGS += --no-relax 51 endif 52 53 CHECKFLAGS += -D$(if $(CONFIG_CPU_BIG_ENDIAN),__XTENSA_EB__,__XTENSA_EL__) 54 55 vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y)) 56 plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y)) 57 58 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs)) 59 60 KBUILD_DEFCONFIG := iss_defconfig 61 62 libs-y += arch/xtensa/lib/ 63 64 boot := arch/xtensa/boot 65 66 all Image zImage uImage xipImage: vmlinux 67 $(Q)$(MAKE) $(build)=$(boot) $@ 68 69 archheaders: 70 $(Q)$(MAKE) $(build)=arch/xtensa/kernel/syscalls all 71 72 define 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' 77 endef
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