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 15variant-y := $(CONFIG_XTENSA_VARIANT_NAME) 16 17VARIANT = $(variant-y) 18 19ifneq ($(VARIANT),) 20 ifdef cross_compiling 21 ifndef CROSS_COMPILE 22 CROSS_COMPILE = xtensa_$(VARIANT)- 23 endif 24 endif 25endif 26 27# Platform configuration 28 29platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000 30platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss 31platform-$(CONFIG_XTENSA_PLATFORM_XTFPGA) := xtfpga 32 33# temporarily until string.h is fixed 34KBUILD_CFLAGS += -ffreestanding -D__linux__ 35KBUILD_CFLAGS += -pipe -mlongcalls -mtext-section-literals 36KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,) 37KBUILD_CFLAGS += $(call cc-option,-mno-serialize-volatile,) 38KBUILD_CFLAGS += $(call cc-option,-mno-fdpic,) 39ifneq ($(CONFIG_KERNEL_ABI_CALL0),) 40KBUILD_CFLAGS += -mabi=call0 41KBUILD_AFLAGS += -mabi=call0 42endif 43 44KBUILD_AFLAGS += -mlongcalls -mtext-section-literals 45KBUILD_AFLAGS += $(call cc-option,-mno-fdpic,) 46 47KBUILD_LDFLAGS += -m elf32xtensa 48 49ifneq ($(CONFIG_LD_NO_RELAX),) 50KBUILD_LDFLAGS += --no-relax 51endif 52 53CHECKFLAGS += -D$(if $(CONFIG_CPU_BIG_ENDIAN),__XTENSA_EB__,__XTENSA_EL__) 54 55vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y)) 56plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y)) 57 58KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs)) 59 60KBUILD_DEFCONFIG := iss_defconfig 61 62libs-y += arch/xtensa/lib/ 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