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Catalin Marinas8c2c3df2012-04-20 14:45:54 +01001#
2# arch/arm64/Makefile
3#
4# This file is included by the global makefile so that you can add your own
5# architecture-specific flags and dependencies.
6#
7# This file is subject to the terms and conditions of the GNU General Public
8# License. See the file "COPYING" in the main directory of this archive
9# for more details.
10#
11# Copyright (C) 1995-2001 by Russell King
12
13LDFLAGS_vmlinux :=-p --no-undefined -X
14CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET)
15OBJCOPYFLAGS :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
16GZFLAGS :=-9
17
Catalin Marinas8c2c3df2012-04-20 14:45:54 +010018KBUILD_DEFCONFIG := defconfig
19
Will Deaconc09d6a02015-02-03 16:14:13 +000020# Check for binutils support for specific extensions
21lseinstr := $(call as-instr,.arch_extension lse,-DCONFIG_AS_LSE=1)
22
23ifeq ($(CONFIG_ARM64_LSE_ATOMICS), y)
24 ifeq ($(lseinstr),)
25$(warning LSE atomics not supported by binutils)
26 endif
27endif
28
29KBUILD_CFLAGS += -mgeneral-regs-only $(lseinstr)
30KBUILD_AFLAGS += $(lseinstr)
31
Will Deacona0974e62013-10-11 14:52:08 +010032ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)
33KBUILD_CPPFLAGS += -mbig-endian
34AS += -EB
35LD += -EB
36else
Catalin Marinas8c2c3df2012-04-20 14:45:54 +010037KBUILD_CPPFLAGS += -mlittle-endian
38AS += -EL
39LD += -EL
Will Deacona0974e62013-10-11 14:52:08 +010040endif
Catalin Marinas8c2c3df2012-04-20 14:45:54 +010041
Catalin Marinas8c2c3df2012-04-20 14:45:54 +010042CHECKFLAGS += -D__aarch64__
43
Will Deacondf057cc2015-03-17 12:15:02 +000044ifeq ($(CONFIG_ARM64_ERRATUM_843419), y)
Will Deaconb6dd8e02015-10-08 11:11:17 +010045KBUILD_CFLAGS_MODULE += -mcmodel=large
Will Deacondf057cc2015-03-17 12:15:02 +000046endif
47
Catalin Marinas8c2c3df2012-04-20 14:45:54 +010048# Default value
49head-y := arch/arm64/kernel/head.o
50
51# The byte offset of the kernel image in RAM from the start of RAM.
Mark Rutlandda57a362014-06-24 16:51:37 +010052ifeq ($(CONFIG_ARM64_RANDOMIZE_TEXT_OFFSET), y)
Ard Biesheuvel41903122014-08-13 18:53:03 +010053TEXT_OFFSET := $(shell awk 'BEGIN {srand(); printf "0x%03x000\n", int(512 * rand())}')
Mark Rutlandda57a362014-06-24 16:51:37 +010054else
Catalin Marinas8c2c3df2012-04-20 14:45:54 +010055TEXT_OFFSET := 0x00080000
Mark Rutlandda57a362014-06-24 16:51:37 +010056endif
Catalin Marinas8c2c3df2012-04-20 14:45:54 +010057
Andrey Ryabinin39d114d2015-10-12 18:52:58 +030058# KASAN_SHADOW_OFFSET = VA_START + (1 << (VA_BITS - 3)) - (1 << 61)
59# in 32-bit arithmetic
60KASAN_SHADOW_OFFSET := $(shell printf "0x%08x00000000\n" $$(( \
61 (0xffffffff & (-1 << ($(CONFIG_ARM64_VA_BITS) - 32))) \
62 + (1 << ($(CONFIG_ARM64_VA_BITS) - 32 - 3)) \
63 - (1 << (64 - 32 - 3)) )) )
64
Catalin Marinas8c2c3df2012-04-20 14:45:54 +010065export TEXT_OFFSET GZFLAGS
66
67core-y += arch/arm64/kernel/ arch/arm64/mm/
Zi Shen Lime54bcde2014-08-26 21:15:30 -070068core-$(CONFIG_NET) += arch/arm64/net/
Marc Zyngier62117532012-12-10 16:41:44 +000069core-$(CONFIG_KVM) += arch/arm64/kvm/
Catalin Marinas63917f02013-06-12 16:48:38 +010070core-$(CONFIG_XEN) += arch/arm64/xen/
Ard Biesheuvel2c988332014-03-06 16:23:33 +080071core-$(CONFIG_CRYPTO) += arch/arm64/crypto/
Catalin Marinas8c2c3df2012-04-20 14:45:54 +010072libs-y := arch/arm64/lib/ $(libs-y)
Steve Capperad08fd42015-03-16 09:30:39 +000073core-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a
Catalin Marinas8c2c3df2012-04-20 14:45:54 +010074
75# Default target when executing plain make
Rob Herring70f915a2012-12-03 17:17:21 -060076KBUILD_IMAGE := Image.gz
77KBUILD_DTBS := dtbs
Catalin Marinas8c2c3df2012-04-20 14:45:54 +010078
Rob Herring70f915a2012-12-03 17:17:21 -060079all: $(KBUILD_IMAGE) $(KBUILD_DTBS)
Catalin Marinas8c2c3df2012-04-20 14:45:54 +010080
81boot := arch/arm64/boot
82
Olof Johansson0723c052015-07-16 21:26:16 +010083Image: vmlinux
84 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
85
86Image.%: vmlinux
Rob Herring70f915a2012-12-03 17:17:21 -060087 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
Catalin Marinas8c2c3df2012-04-20 14:45:54 +010088
89zinstall install: vmlinux
Rob Herring70f915a2012-12-03 17:17:21 -060090 $(Q)$(MAKE) $(build)=$(boot) $@
Catalin Marinas8c2c3df2012-04-20 14:45:54 +010091
Rob Herring70f915a2012-12-03 17:17:21 -060092%.dtb: scripts
93 $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
94
Robert Richter862f4642014-08-29 14:17:02 +020095PHONY += dtbs dtbs_install
Robert Richter9fb5e532014-09-03 15:29:24 +020096
97dtbs: prepare scripts
Robert Richterd38726c2014-09-03 15:54:55 +020098 $(Q)$(MAKE) $(build)=$(boot)/dts
Catalin Marinas8c2c3df2012-04-20 14:45:54 +010099
Robert Richter9fb5e532014-09-03 15:29:24 +0200100dtbs_install:
101 $(Q)$(MAKE) $(dtbinst)=$(boot)/dts
102
Kyle McMartin3c017422013-06-16 20:32:44 +0100103PHONY += vdso_install
104vdso_install:
105 $(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso $@
106
Catalin Marinas8c2c3df2012-04-20 14:45:54 +0100107# We use MRPROPER_FILES and CLEAN_FILES now
108archclean:
109 $(Q)$(MAKE) $(clean)=$(boot)
Jungseok Leec7c52e42015-01-19 14:57:00 +0000110 $(Q)$(MAKE) $(clean)=$(boot)/dts
Catalin Marinas8c2c3df2012-04-20 14:45:54 +0100111
112define archhelp
113 echo '* Image.gz - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)'
114 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
Rob Herring70f915a2012-12-03 17:17:21 -0600115 echo '* dtbs - Build device tree blobs for enabled boards'
Robert Richter862f4642014-08-29 14:17:02 +0200116 echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)'
Catalin Marinas8c2c3df2012-04-20 14:45:54 +0100117 echo ' install - Install uncompressed kernel'
118 echo ' zinstall - Install compressed kernel'
119 echo ' Install using (your) ~/bin/installkernel or'
120 echo ' (distribution) /sbin/installkernel or'
121 echo ' install to $$(INSTALL_PATH) and run lilo'
122endef