1*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0-only 2*4882a593Smuzhiyun# 3*4882a593Smuzhiyun# Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) 4*4882a593Smuzhiyun# 5*4882a593Smuzhiyun 6*4882a593SmuzhiyunKBUILD_DEFCONFIG := haps_hs_smp_defconfig 7*4882a593Smuzhiyun 8*4882a593Smuzhiyunifeq ($(CROSS_COMPILE),) 9*4882a593SmuzhiyunCROSS_COMPILE := $(call cc-cross-prefix, arc-linux- arceb-linux-) 10*4882a593Smuzhiyunendif 11*4882a593Smuzhiyun 12*4882a593Smuzhiyuncflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__ 13*4882a593Smuzhiyun 14*4882a593Smuzhiyuntune-mcpu-def-$(CONFIG_ISA_ARCOMPACT) := -mcpu=arc700 15*4882a593Smuzhiyuntune-mcpu-def-$(CONFIG_ISA_ARCV2) := -mcpu=hs38 16*4882a593Smuzhiyun 17*4882a593Smuzhiyunifeq ($(CONFIG_ARC_TUNE_MCPU),"") 18*4882a593Smuzhiyuncflags-y += $(tune-mcpu-def-y) 19*4882a593Smuzhiyunelse 20*4882a593Smuzhiyuntune-mcpu := $(shell echo $(CONFIG_ARC_TUNE_MCPU)) 21*4882a593Smuzhiyuntune-mcpu-ok := $(call cc-option-yn, $(tune-mcpu)) 22*4882a593Smuzhiyunifeq ($(tune-mcpu-ok),y) 23*4882a593Smuzhiyuncflags-y += $(tune-mcpu) 24*4882a593Smuzhiyunelse 25*4882a593Smuzhiyun# The flag provided by 'CONFIG_ARC_TUNE_MCPU' option isn't known by this compiler 26*4882a593Smuzhiyun# (probably the compiler is too old). Use ISA default mcpu flag instead as a safe option. 27*4882a593Smuzhiyun$(warning ** WARNING ** CONFIG_ARC_TUNE_MCPU flag '$(tune-mcpu)' is unknown, fallback to '$(tune-mcpu-def-y)') 28*4882a593Smuzhiyuncflags-y += $(tune-mcpu-def-y) 29*4882a593Smuzhiyunendif 30*4882a593Smuzhiyunendif 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun 33*4882a593Smuzhiyunifdef CONFIG_ARC_CURR_IN_REG 34*4882a593Smuzhiyun# For a global register defintion, make sure it gets passed to every file 35*4882a593Smuzhiyun# We had a customer reported bug where some code built in kernel was NOT using 36*4882a593Smuzhiyun# any kernel headers, and missing the r25 global register 37*4882a593Smuzhiyun# Can't do unconditionally because of recursive include issues 38*4882a593Smuzhiyun# due to <linux/thread_info.h> 39*4882a593SmuzhiyunLINUXINCLUDE += -include $(srctree)/arch/arc/include/asm/current.h 40*4882a593Smuzhiyunendif 41*4882a593Smuzhiyun 42*4882a593Smuzhiyuncflags-y += -fsection-anchors 43*4882a593Smuzhiyun 44*4882a593Smuzhiyuncflags-$(CONFIG_ARC_HAS_LLSC) += -mlock 45*4882a593Smuzhiyuncflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape 46*4882a593Smuzhiyun 47*4882a593Smuzhiyunifdef CONFIG_ISA_ARCV2 48*4882a593Smuzhiyun 49*4882a593Smuzhiyunifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS 50*4882a593Smuzhiyuncflags-y += -munaligned-access 51*4882a593Smuzhiyunelse 52*4882a593Smuzhiyuncflags-y += -mno-unaligned-access 53*4882a593Smuzhiyunendif 54*4882a593Smuzhiyun 55*4882a593Smuzhiyunifndef CONFIG_ARC_HAS_LL64 56*4882a593Smuzhiyuncflags-y += -mno-ll64 57*4882a593Smuzhiyunendif 58*4882a593Smuzhiyun 59*4882a593Smuzhiyunifndef CONFIG_ARC_HAS_DIV_REM 60*4882a593Smuzhiyuncflags-y += -mno-div-rem 61*4882a593Smuzhiyunendif 62*4882a593Smuzhiyun 63*4882a593Smuzhiyunendif 64*4882a593Smuzhiyun 65*4882a593Smuzhiyuncfi := $(call as-instr,.cfi_startproc\n.cfi_endproc,-DARC_DW2_UNWIND_AS_CFI) 66*4882a593Smuzhiyuncflags-$(CONFIG_ARC_DW2_UNWIND) += -fasynchronous-unwind-tables $(cfi) 67*4882a593Smuzhiyun 68*4882a593Smuzhiyun# small data is default for elf32 tool-chain. If not usable, disable it 69*4882a593Smuzhiyun# This also allows repurposing GP as scratch reg to gcc reg allocator 70*4882a593Smuzhiyundisable_small_data := y 71*4882a593Smuzhiyuncflags-$(disable_small_data) += -mno-sdata -fcall-used-gp 72*4882a593Smuzhiyun 73*4882a593Smuzhiyuncflags-$(CONFIG_CPU_BIG_ENDIAN) += -mbig-endian 74*4882a593Smuzhiyunldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB 75*4882a593Smuzhiyun 76*4882a593SmuzhiyunLIBGCC = $(shell $(CC) $(cflags-y) --print-libgcc-file-name) 77*4882a593Smuzhiyun 78*4882a593Smuzhiyun# Modules with short calls might break for calls into builtin-kernel 79*4882a593SmuzhiyunKBUILD_CFLAGS_MODULE += -mlong-calls -mno-millicode 80*4882a593Smuzhiyun 81*4882a593Smuzhiyun# Finally dump eveything into kernel build system 82*4882a593SmuzhiyunKBUILD_CFLAGS += $(cflags-y) 83*4882a593SmuzhiyunKBUILD_AFLAGS += $(KBUILD_CFLAGS) 84*4882a593SmuzhiyunKBUILD_LDFLAGS += $(ldflags-y) 85*4882a593Smuzhiyun 86*4882a593Smuzhiyunhead-y := arch/arc/kernel/head.o 87*4882a593Smuzhiyun 88*4882a593Smuzhiyun# See arch/arc/Kbuild for content of core part of the kernel 89*4882a593Smuzhiyuncore-y += arch/arc/ 90*4882a593Smuzhiyun 91*4882a593Smuzhiyun# w/o this dtb won't embed into kernel binary 92*4882a593Smuzhiyuncore-y += arch/arc/boot/dts/ 93*4882a593Smuzhiyun 94*4882a593Smuzhiyuncore-y += arch/arc/plat-sim/ 95*4882a593Smuzhiyuncore-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/plat-tb10x/ 96*4882a593Smuzhiyuncore-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/plat-axs10x/ 97*4882a593Smuzhiyuncore-$(CONFIG_ARC_SOC_HSDK) += arch/arc/plat-hsdk/ 98*4882a593Smuzhiyun 99*4882a593Smuzhiyundrivers-$(CONFIG_OPROFILE) += arch/arc/oprofile/ 100*4882a593Smuzhiyun 101*4882a593Smuzhiyunlibs-y += arch/arc/lib/ $(LIBGCC) 102*4882a593Smuzhiyun 103*4882a593Smuzhiyunboot := arch/arc/boot 104*4882a593Smuzhiyun 105*4882a593Smuzhiyunboot_targets := uImage.bin uImage.gz uImage.lzma 106*4882a593Smuzhiyun 107*4882a593SmuzhiyunPHONY += $(boot_targets) 108*4882a593Smuzhiyun$(boot_targets): vmlinux 109*4882a593Smuzhiyun $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ 110*4882a593Smuzhiyun 111*4882a593Smuzhiyunuimage-default-y := uImage.bin 112*4882a593Smuzhiyunuimage-default-$(CONFIG_KERNEL_GZIP) := uImage.gz 113*4882a593Smuzhiyunuimage-default-$(CONFIG_KERNEL_LZMA) := uImage.lzma 114*4882a593Smuzhiyun 115*4882a593SmuzhiyunPHONY += uImage 116*4882a593SmuzhiyunuImage: $(uimage-default-y) 117*4882a593Smuzhiyun @ln -sf $< $(boot)/uImage 118*4882a593Smuzhiyun @$(kecho) ' Image $(boot)/uImage is ready' 119*4882a593Smuzhiyun 120*4882a593SmuzhiyunCLEAN_FILES += $(boot)/uImage 121*4882a593Smuzhiyun 122*4882a593Smuzhiyunarchclean: 123*4882a593Smuzhiyun $(Q)$(MAKE) $(clean)=$(boot) 124