1# SPDX-License-Identifier: GPL-2.0-only
  2#
  3# Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
  4#
  5
  6KBUILD_DEFCONFIG := haps_hs_smp_defconfig
  7
  8ifeq ($(CROSS_COMPILE),)
  9CROSS_COMPILE := $(call cc-cross-prefix, arc-linux- arceb-linux-)
 10endif
 11
 12cflags-y	+= -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__
 13
 14tune-mcpu-def-$(CONFIG_ISA_ARCOMPACT)	:= -mcpu=arc700
 15tune-mcpu-def-$(CONFIG_ISA_ARCV2)	:= -mcpu=hs38
 16
 17ifeq ($(CONFIG_ARC_TUNE_MCPU),"")
 18cflags-y				+= $(tune-mcpu-def-y)
 19else
 20tune-mcpu				:= $(shell echo $(CONFIG_ARC_TUNE_MCPU))
 21tune-mcpu-ok 				:= $(call cc-option-yn, $(tune-mcpu))
 22ifeq ($(tune-mcpu-ok),y)
 23cflags-y				+= $(tune-mcpu)
 24else
 25# The flag provided by 'CONFIG_ARC_TUNE_MCPU' option isn't known by this compiler
 26# (probably the compiler is too old). Use ISA default mcpu flag instead as a safe option.
 27$(warning ** WARNING ** CONFIG_ARC_TUNE_MCPU flag '$(tune-mcpu)' is unknown, fallback to '$(tune-mcpu-def-y)')
 28cflags-y				+= $(tune-mcpu-def-y)
 29endif
 30endif
 31
 32
 33ifdef CONFIG_ARC_CURR_IN_REG
 34# For a global register defintion, make sure it gets passed to every file
 35# We had a customer reported bug where some code built in kernel was NOT using
 36# any kernel headers, and missing the r25 global register
 37# Can't do unconditionally because of recursive include issues
 38# due to <linux/thread_info.h>
 39LINUXINCLUDE	+=  -include $(srctree)/arch/arc/include/asm/current.h
 40endif
 41
 42cflags-y				+= -fsection-anchors
 43
 44cflags-$(CONFIG_ARC_HAS_LLSC)		+= -mlock
 45cflags-$(CONFIG_ARC_HAS_SWAPE)		+= -mswape
 46
 47ifdef CONFIG_ISA_ARCV2
 48
 49ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS
 50cflags-y				+= -munaligned-access
 51else
 52cflags-y				+= -mno-unaligned-access
 53endif
 54
 55ifndef CONFIG_ARC_HAS_LL64
 56cflags-y				+= -mno-ll64
 57endif
 58
 59ifndef CONFIG_ARC_HAS_DIV_REM
 60cflags-y				+= -mno-div-rem
 61endif
 62
 63endif
 64
 65cfi := $(call as-instr,.cfi_startproc\n.cfi_endproc,-DARC_DW2_UNWIND_AS_CFI)
 66cflags-$(CONFIG_ARC_DW2_UNWIND)		+= -fasynchronous-unwind-tables $(cfi)
 67
 68# small data is default for elf32 tool-chain. If not usable, disable it
 69# This also allows repurposing GP as scratch reg to gcc reg allocator
 70disable_small_data := y
 71cflags-$(disable_small_data)		+= -mno-sdata -fcall-used-gp
 72
 73cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= -mbig-endian
 74ldflags-$(CONFIG_CPU_BIG_ENDIAN)	+= -EB
 75
 76LIBGCC	= $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
 77
 78# Modules with short calls might break for calls into builtin-kernel
 79KBUILD_CFLAGS_MODULE	+= -mlong-calls -mno-millicode
 80
 81# Finally dump eveything into kernel build system
 82KBUILD_CFLAGS	+= $(cflags-y)
 83KBUILD_AFLAGS	+= $(KBUILD_CFLAGS)
 84KBUILD_LDFLAGS	+= $(ldflags-y)
 85
 86head-y		:= arch/arc/kernel/head.o
 87
 88# See arch/arc/Kbuild for content of core part of the kernel
 89core-y		+= arch/arc
 90
 91# w/o this dtb won't embed into kernel binary
 92core-y		+= arch/arc/boot/dts/
 93
 94core-y				+= arch/arc/plat-sim/
 95core-$(CONFIG_ARC_PLAT_TB10X)	+= arch/arc/plat-tb10x/
 96core-$(CONFIG_ARC_PLAT_AXS10X)	+= arch/arc/plat-axs10x/
 97core-$(CONFIG_ARC_PLAT_EZNPS)	+= arch/arc/plat-eznps/
 98core-$(CONFIG_ARC_SOC_HSDK)	+= arch/arc/plat-hsdk/
 99
100ifdef CONFIG_ARC_PLAT_EZNPS
101KBUILD_CPPFLAGS += -I$(srctree)/arch/arc/plat-eznps/include
102endif
103
104drivers-$(CONFIG_OPROFILE)	+= arch/arc/oprofile/
105
106libs-y		+= arch/arc/lib/ $(LIBGCC)
107
108boot		:= arch/arc/boot
109
110#default target for make without any arguments.
111KBUILD_IMAGE	:= $(boot)/bootpImage
112
113all:	bootpImage
114bootpImage: vmlinux
115
116boot_targets += uImage uImage.bin uImage.gz
117
118$(boot_targets): vmlinux
119	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
120
121archclean:
122	$(Q)$(MAKE) $(clean)=$(boot)