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8c2c3df3 CM |
1 | # |
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 | ||
13 | LDFLAGS_vmlinux :=-p --no-undefined -X | |
14 | CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET) | |
15 | OBJCOPYFLAGS :=-O binary -R .note -R .note.gnu.build-id -R .comment -S | |
16 | GZFLAGS :=-9 | |
17 | ||
8c2c3df3 CM |
18 | KBUILD_DEFCONFIG := defconfig |
19 | ||
c09d6a04 WD |
20 | # Check for binutils support for specific extensions |
21 | lseinstr := $(call as-instr,.arch_extension lse,-DCONFIG_AS_LSE=1) | |
22 | ||
23 | ifeq ($(CONFIG_ARM64_LSE_ATOMICS), y) | |
24 | ifeq ($(lseinstr),) | |
25 | $(warning LSE atomics not supported by binutils) | |
26 | endif | |
27 | endif | |
28 | ||
29 | KBUILD_CFLAGS += -mgeneral-regs-only $(lseinstr) | |
30 | KBUILD_AFLAGS += $(lseinstr) | |
31 | ||
a0974e6e WD |
32 | ifeq ($(CONFIG_CPU_BIG_ENDIAN), y) |
33 | KBUILD_CPPFLAGS += -mbig-endian | |
34 | AS += -EB | |
35 | LD += -EB | |
36 | else | |
8c2c3df3 CM |
37 | KBUILD_CPPFLAGS += -mlittle-endian |
38 | AS += -EL | |
39 | LD += -EL | |
a0974e6e | 40 | endif |
8c2c3df3 | 41 | |
8c2c3df3 CM |
42 | CHECKFLAGS += -D__aarch64__ |
43 | ||
df057cc7 | 44 | ifeq ($(CONFIG_ARM64_ERRATUM_843419), y) |
b6dd8e07 | 45 | KBUILD_CFLAGS_MODULE += -mcmodel=large |
df057cc7 WD |
46 | endif |
47 | ||
8c2c3df3 CM |
48 | # Default value |
49 | head-y := arch/arm64/kernel/head.o | |
50 | ||
51 | # The byte offset of the kernel image in RAM from the start of RAM. | |
da57a369 | 52 | ifeq ($(CONFIG_ARM64_RANDOMIZE_TEXT_OFFSET), y) |
4190312b | 53 | TEXT_OFFSET := $(shell awk 'BEGIN {srand(); printf "0x%03x000\n", int(512 * rand())}') |
da57a369 | 54 | else |
8c2c3df3 | 55 | TEXT_OFFSET := 0x00080000 |
da57a369 | 56 | endif |
8c2c3df3 | 57 | |
39d114dd AR |
58 | # KASAN_SHADOW_OFFSET = VA_START + (1 << (VA_BITS - 3)) - (1 << 61) |
59 | # in 32-bit arithmetic | |
60 | KASAN_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 | ||
8c2c3df3 CM |
65 | export TEXT_OFFSET GZFLAGS |
66 | ||
67 | core-y += arch/arm64/kernel/ arch/arm64/mm/ | |
e54bcde3 | 68 | core-$(CONFIG_NET) += arch/arm64/net/ |
6211753f | 69 | core-$(CONFIG_KVM) += arch/arm64/kvm/ |
63917f0b | 70 | core-$(CONFIG_XEN) += arch/arm64/xen/ |
2c98833a | 71 | core-$(CONFIG_CRYPTO) += arch/arm64/crypto/ |
8c2c3df3 | 72 | libs-y := arch/arm64/lib/ $(libs-y) |
ad08fd49 | 73 | core-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a |
8c2c3df3 CM |
74 | |
75 | # Default target when executing plain make | |
70f915a2 RH |
76 | KBUILD_IMAGE := Image.gz |
77 | KBUILD_DTBS := dtbs | |
8c2c3df3 | 78 | |
70f915a2 | 79 | all: $(KBUILD_IMAGE) $(KBUILD_DTBS) |
8c2c3df3 CM |
80 | |
81 | boot := arch/arm64/boot | |
82 | ||
0723c05f OJ |
83 | Image: vmlinux |
84 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ | |
85 | ||
86 | Image.%: vmlinux | |
70f915a2 | 87 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ |
8c2c3df3 CM |
88 | |
89 | zinstall install: vmlinux | |
70f915a2 | 90 | $(Q)$(MAKE) $(build)=$(boot) $@ |
8c2c3df3 | 91 | |
70f915a2 RH |
92 | %.dtb: scripts |
93 | $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@ | |
94 | ||
862f464a | 95 | PHONY += dtbs dtbs_install |
9fb5e537 RR |
96 | |
97 | dtbs: prepare scripts | |
d38726c4 | 98 | $(Q)$(MAKE) $(build)=$(boot)/dts |
8c2c3df3 | 99 | |
9fb5e537 RR |
100 | dtbs_install: |
101 | $(Q)$(MAKE) $(dtbinst)=$(boot)/dts | |
102 | ||
3c01742a KM |
103 | PHONY += vdso_install |
104 | vdso_install: | |
105 | $(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso $@ | |
106 | ||
8c2c3df3 CM |
107 | # We use MRPROPER_FILES and CLEAN_FILES now |
108 | archclean: | |
109 | $(Q)$(MAKE) $(clean)=$(boot) | |
c7c52e48 | 110 | $(Q)$(MAKE) $(clean)=$(boot)/dts |
8c2c3df3 CM |
111 | |
112 | define archhelp | |
113 | echo '* Image.gz - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)' | |
114 | echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' | |
70f915a2 | 115 | echo '* dtbs - Build device tree blobs for enabled boards' |
862f464a | 116 | echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)' |
8c2c3df3 CM |
117 | 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' | |
122 | endef |