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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) | |
728dabd6 | 30 | KBUILD_CFLAGS += -fno-asynchronous-unwind-tables |
67dfa175 | 31 | KBUILD_CFLAGS += $(call cc-option, -mpc-relative-literal-loads) |
c09d6a04 WD |
32 | KBUILD_AFLAGS += $(lseinstr) |
33 | ||
a0974e6e WD |
34 | ifeq ($(CONFIG_CPU_BIG_ENDIAN), y) |
35 | KBUILD_CPPFLAGS += -mbig-endian | |
36 | AS += -EB | |
37 | LD += -EB | |
38 | else | |
8c2c3df3 CM |
39 | KBUILD_CPPFLAGS += -mlittle-endian |
40 | AS += -EL | |
41 | LD += -EL | |
a0974e6e | 42 | endif |
8c2c3df3 | 43 | |
8c2c3df3 CM |
44 | CHECKFLAGS += -D__aarch64__ |
45 | ||
df057cc7 | 46 | ifeq ($(CONFIG_ARM64_ERRATUM_843419), y) |
b6dd8e07 | 47 | KBUILD_CFLAGS_MODULE += -mcmodel=large |
df057cc7 WD |
48 | endif |
49 | ||
8c2c3df3 CM |
50 | # Default value |
51 | head-y := arch/arm64/kernel/head.o | |
52 | ||
53 | # The byte offset of the kernel image in RAM from the start of RAM. | |
da57a369 | 54 | ifeq ($(CONFIG_ARM64_RANDOMIZE_TEXT_OFFSET), y) |
4190312b | 55 | TEXT_OFFSET := $(shell awk 'BEGIN {srand(); printf "0x%03x000\n", int(512 * rand())}') |
da57a369 | 56 | else |
8c2c3df3 | 57 | TEXT_OFFSET := 0x00080000 |
da57a369 | 58 | endif |
8c2c3df3 | 59 | |
39d114dd AR |
60 | # KASAN_SHADOW_OFFSET = VA_START + (1 << (VA_BITS - 3)) - (1 << 61) |
61 | # in 32-bit arithmetic | |
62 | KASAN_SHADOW_OFFSET := $(shell printf "0x%08x00000000\n" $$(( \ | |
63 | (0xffffffff & (-1 << ($(CONFIG_ARM64_VA_BITS) - 32))) \ | |
64 | + (1 << ($(CONFIG_ARM64_VA_BITS) - 32 - 3)) \ | |
65 | - (1 << (64 - 32 - 3)) )) ) | |
66 | ||
8c2c3df3 CM |
67 | export TEXT_OFFSET GZFLAGS |
68 | ||
69 | core-y += arch/arm64/kernel/ arch/arm64/mm/ | |
e54bcde3 | 70 | core-$(CONFIG_NET) += arch/arm64/net/ |
6211753f | 71 | core-$(CONFIG_KVM) += arch/arm64/kvm/ |
63917f0b | 72 | core-$(CONFIG_XEN) += arch/arm64/xen/ |
2c98833a | 73 | core-$(CONFIG_CRYPTO) += arch/arm64/crypto/ |
8c2c3df3 | 74 | libs-y := arch/arm64/lib/ $(libs-y) |
ad08fd49 | 75 | core-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a |
8c2c3df3 CM |
76 | |
77 | # Default target when executing plain make | |
70f915a2 RH |
78 | KBUILD_IMAGE := Image.gz |
79 | KBUILD_DTBS := dtbs | |
8c2c3df3 | 80 | |
70f915a2 | 81 | all: $(KBUILD_IMAGE) $(KBUILD_DTBS) |
8c2c3df3 CM |
82 | |
83 | boot := arch/arm64/boot | |
84 | ||
0723c05f OJ |
85 | Image: vmlinux |
86 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ | |
87 | ||
88 | Image.%: vmlinux | |
70f915a2 | 89 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ |
8c2c3df3 | 90 | |
8684fa3e | 91 | zinstall install: |
70f915a2 | 92 | $(Q)$(MAKE) $(build)=$(boot) $@ |
8c2c3df3 | 93 | |
70f915a2 RH |
94 | %.dtb: scripts |
95 | $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@ | |
96 | ||
862f464a | 97 | PHONY += dtbs dtbs_install |
9fb5e537 RR |
98 | |
99 | dtbs: prepare scripts | |
d38726c4 | 100 | $(Q)$(MAKE) $(build)=$(boot)/dts |
8c2c3df3 | 101 | |
9fb5e537 RR |
102 | dtbs_install: |
103 | $(Q)$(MAKE) $(dtbinst)=$(boot)/dts | |
104 | ||
3c01742a KM |
105 | PHONY += vdso_install |
106 | vdso_install: | |
107 | $(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso $@ | |
108 | ||
8c2c3df3 CM |
109 | # We use MRPROPER_FILES and CLEAN_FILES now |
110 | archclean: | |
111 | $(Q)$(MAKE) $(clean)=$(boot) | |
c7c52e48 | 112 | $(Q)$(MAKE) $(clean)=$(boot)/dts |
8c2c3df3 CM |
113 | |
114 | define archhelp | |
115 | echo '* Image.gz - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)' | |
116 | echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' | |
70f915a2 | 117 | echo '* dtbs - Build device tree blobs for enabled boards' |
862f464a | 118 | echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)' |
8c2c3df3 CM |
119 | echo ' install - Install uncompressed kernel' |
120 | echo ' zinstall - Install compressed kernel' | |
121 | echo ' Install using (your) ~/bin/installkernel or' | |
122 | echo ' (distribution) /sbin/installkernel or' | |
123 | echo ' install to $$(INSTALL_PATH) and run lilo' | |
124 | endef |