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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)
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 := $(CONFIG_ARC_TUNE_MCPU)
21ifneq ($(call cc-option,$(tune-mcpu)),)
22cflags-y += $(tune-mcpu)
23else
24# The flag provided by 'CONFIG_ARC_TUNE_MCPU' option isn't known by this compiler
25# (probably the compiler is too old). Use ISA default mcpu flag instead as a safe option.
26$(warning ** WARNING ** CONFIG_ARC_TUNE_MCPU flag '$(tune-mcpu)' is unknown, fallback to '$(tune-mcpu-def-y)')
27cflags-y += $(tune-mcpu-def-y)
28endif
29endif
30
31ifdef CONFIG_ARC_CURR_IN_REG
32# For a global register definition, make sure it gets passed to every file
33# We had a customer reported bug where some code built in kernel was NOT using
34# any kernel headers, and missing the global register
35# Can't do unconditionally because of recursive include issues
36# due to <linux/thread_info.h>
37LINUXINCLUDE += -include $(srctree)/arch/arc/include/asm/current.h
38cflags-y += -ffixed-gp
39endif
40
41cflags-y += -fsection-anchors
42
43cflags-$(CONFIG_ARC_HAS_LLSC) += -mlock
44cflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape
45
46ifdef CONFIG_ISA_ARCV2
47
48ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS
49cflags-y += -munaligned-access
50else
51cflags-y += -mno-unaligned-access
52endif
53
54ifndef CONFIG_ARC_HAS_LL64
55cflags-y += -mno-ll64
56endif
57
58ifndef CONFIG_ARC_HAS_DIV_REM
59cflags-y += -mno-div-rem
60endif
61
62endif
63
64cfi := $(call as-instr,.cfi_startproc\n.cfi_endproc,-DARC_DW2_UNWIND_AS_CFI)
65cflags-$(CONFIG_ARC_DW2_UNWIND) += -fasynchronous-unwind-tables $(cfi)
66
67# small data is default for elf32 tool-chain. If not usable, disable it
68# This also allows repurposing GP as scratch reg to gcc reg allocator
69disable_small_data := y
70cflags-$(disable_small_data) += -mno-sdata
71
72cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mbig-endian
73ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
74
75LIBGCC = $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
76
77# Modules with short calls might break for calls into builtin-kernel
78KBUILD_CFLAGS_MODULE += -mlong-calls -mno-millicode
79
80# Finally dump eveything into kernel build system
81KBUILD_CFLAGS += $(cflags-y)
82KBUILD_AFLAGS += $(KBUILD_CFLAGS)
83KBUILD_LDFLAGS += $(ldflags-y)
84
85# w/o this dtb won't embed into kernel binary
86core-y += arch/arc/boot/dts
87
88core-y += arch/arc/plat-sim/
89core-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/plat-tb10x/
90core-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/plat-axs10x/
91core-$(CONFIG_ARC_SOC_HSDK) += arch/arc/plat-hsdk/
92
93libs-y += arch/arc/lib/ $(LIBGCC)
94
95boot := arch/arc/boot
96
97boot_targets := uImage.bin uImage.gz uImage.lzma
98
99PHONY += $(boot_targets)
100$(boot_targets): vmlinux
101 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
102
103uimage-default-y := uImage.bin
104uimage-default-$(CONFIG_KERNEL_GZIP) := uImage.gz
105uimage-default-$(CONFIG_KERNEL_LZMA) := uImage.lzma
106
107PHONY += uImage
108uImage: $(uimage-default-y)
109 @ln -sf $< $(boot)/uImage
110 @$(kecho) ' Image $(boot)/uImage is ready'
111
112CLEAN_FILES += $(boot)/uImage