1d2912cb1SThomas Gleixner# SPDX-License-Identifier: GPL-2.0-only 2cfdbc2e1SVineet Gupta# 3cfdbc2e1SVineet Gupta# Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) 4cfdbc2e1SVineet Gupta# 5cfdbc2e1SVineet Gupta 61681baa7SEugeniy PaltsevKBUILD_DEFCONFIG := haps_hs_smp_defconfig 7cfdbc2e1SVineet Gupta 82bc42bfbSAlexey Brodkinifeq ($(CROSS_COMPILE),) 9824927e8SLeon RomanovskyCROSS_COMPILE := $(call cc-cross-prefix, arc-linux- arceb-linux- arc-linux-gnu-) 102bc42bfbSAlexey Brodkinendif 112bc42bfbSAlexey Brodkin 12*b4171fd0SThomas Weißschuhcflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -mswape -D__linux__ 130bdd6e74SEugeniy Paltsev 14040ece2aSVineet Guptatune-mcpu-def-$(CONFIG_ISA_ARCOMPACT) := -mcpu=arc700 150bdd6e74SEugeniy Paltsevtune-mcpu-def-$(CONFIG_ISA_ARCV2) := -mcpu=hs38 160bdd6e74SEugeniy Paltsev 17129ab0d2SMasahiro Yamadaifeq ($(CONFIG_ARC_TUNE_MCPU),) 180bdd6e74SEugeniy Paltsevcflags-y += $(tune-mcpu-def-y) 190bdd6e74SEugeniy Paltsevelse 20129ab0d2SMasahiro Yamadatune-mcpu := $(CONFIG_ARC_TUNE_MCPU) 2143e6b58fSNick Desaulniersifneq ($(call cc-option,$(tune-mcpu)),) 220bdd6e74SEugeniy Paltsevcflags-y += $(tune-mcpu) 230bdd6e74SEugeniy Paltsevelse 240bdd6e74SEugeniy Paltsev# The flag provided by 'CONFIG_ARC_TUNE_MCPU' option isn't known by this compiler 250bdd6e74SEugeniy Paltsev# (probably the compiler is too old). Use ISA default mcpu flag instead as a safe option. 260bdd6e74SEugeniy Paltsev$(warning ** WARNING ** CONFIG_ARC_TUNE_MCPU flag '$(tune-mcpu)' is unknown, fallback to '$(tune-mcpu-def-y)') 270bdd6e74SEugeniy Paltsevcflags-y += $(tune-mcpu-def-y) 280bdd6e74SEugeniy Paltsevendif 290bdd6e74SEugeniy Paltsevendif 300bdd6e74SEugeniy Paltsev 31080c3747SVineet Guptaifdef CONFIG_ARC_CURR_IN_REG 32f79f7a2dSBhaskar Chowdhury# For a global register definition, make sure it gets passed to every file 33080c3747SVineet Gupta# We had a customer reported bug where some code built in kernel was NOT using 34cfca4b5aSVineet Gupta# any kernel headers, and missing the global register 358235703eSVineet Gupta# Can't do unconditionally because of recursive include issues 36080c3747SVineet Gupta# due to <linux/thread_info.h> 3775dd4747SMasahiro YamadaLINUXINCLUDE += -include $(srctree)/arch/arc/include/asm/current.h 38cfca4b5aSVineet Guptacflags-y += -ffixed-gp 39080c3747SVineet Guptaendif 40080c3747SVineet Gupta 412b52e2a6SMasahiro Yamadacflags-y += -fsection-anchors 42cfdbc2e1SVineet Gupta 4376a08404SVineet Guptacflags-$(CONFIG_ARC_HAS_LLSC) += -mlock 4476a08404SVineet Gupta 45d05a76abSAlexey Brodkinifdef CONFIG_ISA_ARCV2 46d05a76abSAlexey Brodkin 4776551468SEugeniy Paltsevifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS 4876551468SEugeniy Paltsevcflags-y += -munaligned-access 4976551468SEugeniy Paltsevelse 5076551468SEugeniy Paltsevcflags-y += -mno-unaligned-access 5176551468SEugeniy Paltsevendif 5276551468SEugeniy Paltsev 531f6ccfffSVineet Guptaifndef CONFIG_ARC_HAS_LL64 54d05a76abSAlexey Brodkincflags-y += -mno-ll64 55d05a76abSAlexey Brodkinendif 56d05a76abSAlexey Brodkin 57d05a76abSAlexey Brodkinifndef CONFIG_ARC_HAS_DIV_REM 58d05a76abSAlexey Brodkincflags-y += -mno-div-rem 59d05a76abSAlexey Brodkinendif 60d05a76abSAlexey Brodkin 611f6ccfffSVineet Guptaendif 621f6ccfffSVineet Gupta 635a205a32SVineet Guptacfi := $(call as-instr,.cfi_startproc\n.cfi_endproc,-DARC_DW2_UNWIND_AS_CFI) 645a205a32SVineet Guptacflags-$(CONFIG_ARC_DW2_UNWIND) += -fasynchronous-unwind-tables $(cfi) 656716dbbdSVineet Gupta 66cfdbc2e1SVineet Gupta# small data is default for elf32 tool-chain. If not usable, disable it 67cfdbc2e1SVineet Gupta# This also allows repurposing GP as scratch reg to gcc reg allocator 68cfdbc2e1SVineet Guptadisable_small_data := y 69cfca4b5aSVineet Guptacflags-$(disable_small_data) += -mno-sdata 70cfdbc2e1SVineet Gupta 71cfdbc2e1SVineet Guptacflags-$(CONFIG_CPU_BIG_ENDIAN) += -mbig-endian 72cfdbc2e1SVineet Guptaldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB 73cfdbc2e1SVineet Gupta 7440660f1fSAlexey BrodkinLIBGCC = $(shell $(CC) $(cflags-y) --print-libgcc-file-name) 75cfdbc2e1SVineet Gupta 76cfdbc2e1SVineet Gupta# Modules with short calls might break for calls into builtin-kernel 7707fd7d4bSVineet GuptaKBUILD_CFLAGS_MODULE += -mlong-calls -mno-millicode 78cfdbc2e1SVineet Gupta 79cfdbc2e1SVineet Gupta# Finally dump eveything into kernel build system 80cfdbc2e1SVineet GuptaKBUILD_CFLAGS += $(cflags-y) 81cfdbc2e1SVineet GuptaKBUILD_AFLAGS += $(KBUILD_CFLAGS) 82d503ac53SMasahiro YamadaKBUILD_LDFLAGS += $(ldflags-y) 83cfdbc2e1SVineet Gupta 8433460f86SVineet Guptacore-y += arch/arc/plat-sim/ 85072eb693SChristian Ruppertcore-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/plat-tb10x/ 86556cc1c5SAlexey Brodkincore-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/plat-axs10x/ 87a518d637SAlexey Brodkincore-$(CONFIG_ARC_SOC_HSDK) += arch/arc/plat-hsdk/ 8896665789SNoam Camus 89cfdbc2e1SVineet Guptalibs-y += arch/arc/lib/ $(LIBGCC) 90cfdbc2e1SVineet Gupta 91fb0990bbSVineet Guptaboot := arch/arc/boot 92fb0990bbSVineet Gupta 93c5e6ae56SMasahiro Yamadaboot_targets := uImage.bin uImage.gz uImage.lzma 94104058edSVineet Gupta 950cfccb3cSMasahiro YamadaPHONY += $(boot_targets) 96104058edSVineet Gupta$(boot_targets): vmlinux 97cfdbc2e1SVineet Gupta $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ 98cfdbc2e1SVineet Gupta 99c5e6ae56SMasahiro Yamadauimage-default-y := uImage.bin 100c5e6ae56SMasahiro Yamadauimage-default-$(CONFIG_KERNEL_GZIP) := uImage.gz 101c5e6ae56SMasahiro Yamadauimage-default-$(CONFIG_KERNEL_LZMA) := uImage.lzma 102c5e6ae56SMasahiro Yamada 103c5e6ae56SMasahiro YamadaPHONY += uImage 104c5e6ae56SMasahiro YamadauImage: $(uimage-default-y) 105c5e6ae56SMasahiro Yamada @ln -sf $< $(boot)/uImage 106c5e6ae56SMasahiro Yamada @$(kecho) ' Image $(boot)/uImage is ready' 107c5e6ae56SMasahiro Yamada 108c5e6ae56SMasahiro YamadaCLEAN_FILES += $(boot)/uImage 109