1cfdbc2e1SVineet Gupta# 2cfdbc2e1SVineet Gupta# Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) 3cfdbc2e1SVineet Gupta# 4cfdbc2e1SVineet Gupta# This program is free software; you can redistribute it and/or modify 5cfdbc2e1SVineet Gupta# it under the terms of the GNU General Public License version 2 as 6cfdbc2e1SVineet Gupta# published by the Free Software Foundation. 7cfdbc2e1SVineet Gupta# 8cfdbc2e1SVineet Gupta 97a70bf79SVineet GuptaKBUILD_DEFCONFIG := nsim_700_defconfig 10cfdbc2e1SVineet Gupta 1174c11e30SAlexey Brodkincflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__ 1240b8ad8fSVineet Guptacflags-$(CONFIG_ISA_ARCOMPACT) += -mA7 1300a99339SVineet Guptacflags-$(CONFIG_ISA_ARCV2) += -mcpu=hs38 14cfdbc2e1SVineet Gupta 15080c3747SVineet Guptaifdef CONFIG_ARC_CURR_IN_REG 16080c3747SVineet Gupta# For a global register defintion, make sure it gets passed to every file 17080c3747SVineet Gupta# We had a customer reported bug where some code built in kernel was NOT using 18080c3747SVineet Gupta# any kernel headers, and missing the r25 global register 198235703eSVineet Gupta# Can't do unconditionally because of recursive include issues 20080c3747SVineet Gupta# due to <linux/thread_info.h> 21080c3747SVineet GuptaLINUXINCLUDE += -include ${src}/arch/arc/include/asm/current.h 22080c3747SVineet Guptaendif 23080c3747SVineet Gupta 242b52e2a6SMasahiro Yamadacflags-y += -fsection-anchors 25cfdbc2e1SVineet Gupta 2676a08404SVineet Guptacflags-$(CONFIG_ARC_HAS_LLSC) += -mlock 2776a08404SVineet Guptacflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape 2876a08404SVineet Gupta 29d05a76abSAlexey Brodkinifdef CONFIG_ISA_ARCV2 30d05a76abSAlexey Brodkin 311f6ccfffSVineet Guptaifndef CONFIG_ARC_HAS_LL64 32d05a76abSAlexey Brodkincflags-y += -mno-ll64 33d05a76abSAlexey Brodkinendif 34d05a76abSAlexey Brodkin 35d05a76abSAlexey Brodkinifndef CONFIG_ARC_HAS_DIV_REM 36d05a76abSAlexey Brodkincflags-y += -mno-div-rem 37d05a76abSAlexey Brodkinendif 38d05a76abSAlexey Brodkin 391f6ccfffSVineet Guptaendif 401f6ccfffSVineet Gupta 415a205a32SVineet Guptacfi := $(call as-instr,.cfi_startproc\n.cfi_endproc,-DARC_DW2_UNWIND_AS_CFI) 425a205a32SVineet Guptacflags-$(CONFIG_ARC_DW2_UNWIND) += -fasynchronous-unwind-tables $(cfi) 436716dbbdSVineet Gupta 44cfdbc2e1SVineet Guptaifndef CONFIG_CC_OPTIMIZE_FOR_SIZE 45cfdbc2e1SVineet Gupta# Generic build system uses -O2, we want -O3 4697709069SVineet Gupta# Note: No need to add to cflags-y as that happens anyways 47a76bcf55SArnd Bergmann# 48a76bcf55SArnd Bergmann# Disable the false maybe-uninitialized warings gcc spits out at -O3 49a76bcf55SArnd BergmannARCH_CFLAGS += -O3 $(call cc-disable-warning,maybe-uninitialized,) 50cfdbc2e1SVineet Guptaendif 51cfdbc2e1SVineet Gupta 52cfdbc2e1SVineet Gupta# small data is default for elf32 tool-chain. If not usable, disable it 53cfdbc2e1SVineet Gupta# This also allows repurposing GP as scratch reg to gcc reg allocator 54cfdbc2e1SVineet Guptadisable_small_data := y 55cfdbc2e1SVineet Guptacflags-$(disable_small_data) += -mno-sdata -fcall-used-gp 56cfdbc2e1SVineet Gupta 57cfdbc2e1SVineet Guptacflags-$(CONFIG_CPU_BIG_ENDIAN) += -mbig-endian 58cfdbc2e1SVineet Guptaldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB 59cfdbc2e1SVineet Gupta 60*40660f1fSAlexey BrodkinLIBGCC = $(shell $(CC) $(cflags-y) --print-libgcc-file-name) 61cfdbc2e1SVineet Gupta 62cfdbc2e1SVineet Gupta# Modules with short calls might break for calls into builtin-kernel 6307fd7d4bSVineet GuptaKBUILD_CFLAGS_MODULE += -mlong-calls -mno-millicode 64cfdbc2e1SVineet Gupta 65cfdbc2e1SVineet Gupta# Finally dump eveything into kernel build system 66cfdbc2e1SVineet GuptaKBUILD_CFLAGS += $(cflags-y) 67cfdbc2e1SVineet GuptaKBUILD_AFLAGS += $(KBUILD_CFLAGS) 68d503ac53SMasahiro YamadaKBUILD_LDFLAGS += $(ldflags-y) 69cfdbc2e1SVineet Gupta 70cfdbc2e1SVineet Guptahead-y := arch/arc/kernel/head.o 71cfdbc2e1SVineet Gupta 72cfdbc2e1SVineet Gupta# See arch/arc/Kbuild for content of core part of the kernel 73cfdbc2e1SVineet Guptacore-y += arch/arc/ 74cfdbc2e1SVineet Gupta 75999159a5SVineet Gupta# w/o this dtb won't embed into kernel binary 76999159a5SVineet Guptacore-y += arch/arc/boot/dts/ 77999159a5SVineet Gupta 7833460f86SVineet Guptacore-y += arch/arc/plat-sim/ 79072eb693SChristian Ruppertcore-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/plat-tb10x/ 80556cc1c5SAlexey Brodkincore-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/plat-axs10x/ 8196665789SNoam Camuscore-$(CONFIG_ARC_PLAT_EZNPS) += arch/arc/plat-eznps/ 82a518d637SAlexey Brodkincore-$(CONFIG_ARC_SOC_HSDK) += arch/arc/plat-hsdk/ 8396665789SNoam Camus 8496665789SNoam Camusifdef CONFIG_ARC_PLAT_EZNPS 8596665789SNoam CamusKBUILD_CPPFLAGS += -I$(srctree)/arch/arc/plat-eznps/include 8696665789SNoam Camusendif 87cfdbc2e1SVineet Gupta 88769bc1fdSVineet Guptadrivers-$(CONFIG_OPROFILE) += arch/arc/oprofile/ 89769bc1fdSVineet Gupta 90cfdbc2e1SVineet Guptalibs-y += arch/arc/lib/ $(LIBGCC) 91cfdbc2e1SVineet Gupta 92fb0990bbSVineet Guptaboot := arch/arc/boot 93fb0990bbSVineet Gupta 942547476aSAndrea Gelmini#default target for make without any arguments. 955e40f0fdSMichal MarekKBUILD_IMAGE := $(boot)/bootpImage 96cfdbc2e1SVineet Gupta 975e40f0fdSMichal Marekall: bootpImage 98cfdbc2e1SVineet GuptabootpImage: vmlinux 99cfdbc2e1SVineet Gupta 100104058edSVineet Guptaboot_targets += uImage uImage.bin uImage.gz 101104058edSVineet Gupta 102104058edSVineet Gupta$(boot_targets): vmlinux 103cfdbc2e1SVineet Gupta $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ 104cfdbc2e1SVineet Gupta 105999159a5SVineet Gupta%.dtb %.dtb.S %.dtb.o: scripts 106999159a5SVineet Gupta $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@ 107999159a5SVineet Gupta 108999159a5SVineet Guptadtbs: scripts 10910375cccSRob Herring $(Q)$(MAKE) $(build)=$(boot)/dts 110999159a5SVineet Gupta 111cfdbc2e1SVineet Guptaarchclean: 112cfdbc2e1SVineet Gupta $(Q)$(MAKE) $(clean)=$(boot) 113