Commit | Line | Data |
---|---|---|
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=$(TEXT_OFFSET) | |
15 | OBJCOPYFLAGS :=-O binary -R .note -R .note.gnu.build-id -R .comment -S | |
16 | GZFLAGS :=-9 | |
17 | ||
01684359 AB |
18 | ifneq ($(CONFIG_RELOCATABLE),) |
19 | LDFLAGS_vmlinux += -pie | |
20 | endif | |
21 | ||
8c2c3df3 CM |
22 | KBUILD_DEFCONFIG := defconfig |
23 | ||
c09d6a04 WD |
24 | # Check for binutils support for specific extensions |
25 | lseinstr := $(call as-instr,.arch_extension lse,-DCONFIG_AS_LSE=1) | |
26 | ||
27 | ifeq ($(CONFIG_ARM64_LSE_ATOMICS), y) | |
28 | ifeq ($(lseinstr),) | |
29 | $(warning LSE atomics not supported by binutils) | |
30 | endif | |
31 | endif | |
32 | ||
33 | KBUILD_CFLAGS += -mgeneral-regs-only $(lseinstr) | |
2e039261 | 34 | KBUILD_CFLAGS += -fno-pic |
72034521 | 35 | KBUILD_CFLAGS += -fno-asynchronous-unwind-tables |
db8bb76c | 36 | KBUILD_CFLAGS += $(call cc-option, -mpc-relative-literal-loads) |
c09d6a04 WD |
37 | KBUILD_AFLAGS += $(lseinstr) |
38 | ||
a0974e6e WD |
39 | ifeq ($(CONFIG_CPU_BIG_ENDIAN), y) |
40 | KBUILD_CPPFLAGS += -mbig-endian | |
41 | AS += -EB | |
42 | LD += -EB | |
43 | else | |
8c2c3df3 CM |
44 | KBUILD_CPPFLAGS += -mlittle-endian |
45 | AS += -EL | |
46 | LD += -EL | |
a0974e6e | 47 | endif |
8c2c3df3 | 48 | |
8c2c3df3 CM |
49 | CHECKFLAGS += -D__aarch64__ |
50 | ||
4166edc4 | 51 | ifeq ($(CONFIG_ARM64_MODULE_CMODEL_LARGE), y) |
b6dd8e07 | 52 | KBUILD_CFLAGS_MODULE += -mcmodel=large |
df057cc7 WD |
53 | endif |
54 | ||
4166edc4 AB |
55 | ifeq ($(CONFIG_ARM64_MODULE_PLTS),y) |
56 | KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/arm64/kernel/module.lds | |
57 | endif | |
58 | ||
8c2c3df3 CM |
59 | # Default value |
60 | head-y := arch/arm64/kernel/head.o | |
61 | ||
62 | # The byte offset of the kernel image in RAM from the start of RAM. | |
da57a369 | 63 | ifeq ($(CONFIG_ARM64_RANDOMIZE_TEXT_OFFSET), y) |
4190312b | 64 | TEXT_OFFSET := $(shell awk 'BEGIN {srand(); printf "0x%03x000\n", int(512 * rand())}') |
da57a369 | 65 | else |
8c2c3df3 | 66 | TEXT_OFFSET := 0x00080000 |
da57a369 | 67 | endif |
8c2c3df3 | 68 | |
39d114dd AR |
69 | # KASAN_SHADOW_OFFSET = VA_START + (1 << (VA_BITS - 3)) - (1 << 61) |
70 | # in 32-bit arithmetic | |
71 | KASAN_SHADOW_OFFSET := $(shell printf "0x%08x00000000\n" $$(( \ | |
72 | (0xffffffff & (-1 << ($(CONFIG_ARM64_VA_BITS) - 32))) \ | |
73 | + (1 << ($(CONFIG_ARM64_VA_BITS) - 32 - 3)) \ | |
74 | - (1 << (64 - 32 - 3)) )) ) | |
75 | ||
8c2c3df3 CM |
76 | export TEXT_OFFSET GZFLAGS |
77 | ||
78 | core-y += arch/arm64/kernel/ arch/arm64/mm/ | |
e54bcde3 | 79 | core-$(CONFIG_NET) += arch/arm64/net/ |
6211753f | 80 | core-$(CONFIG_KVM) += arch/arm64/kvm/ |
63917f0b | 81 | core-$(CONFIG_XEN) += arch/arm64/xen/ |
2c98833a | 82 | core-$(CONFIG_CRYPTO) += arch/arm64/crypto/ |
8c2c3df3 | 83 | libs-y := arch/arm64/lib/ $(libs-y) |
ad08fd49 | 84 | core-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a |
8c2c3df3 CM |
85 | |
86 | # Default target when executing plain make | |
69a800c9 | 87 | ifeq ($(CONFIG_BUILD_ARM64_APPENDED_DTB_IMAGE),y) |
a08cafa7 | 88 | KBUILD_IMAGE := $(subst $\",,$(CONFIG_BUILD_ARM64_APPENDED_KERNEL_IMAGE_NAME)) |
69a800c9 | 89 | else |
70f915a2 | 90 | KBUILD_IMAGE := Image.gz |
69a800c9 AR |
91 | endif |
92 | ||
70f915a2 | 93 | KBUILD_DTBS := dtbs |
8c2c3df3 | 94 | |
70f915a2 | 95 | all: $(KBUILD_IMAGE) $(KBUILD_DTBS) |
8c2c3df3 CM |
96 | |
97 | boot := arch/arm64/boot | |
98 | ||
0723c05f OJ |
99 | Image: vmlinux |
100 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ | |
101 | ||
102 | Image.%: vmlinux | |
70f915a2 | 103 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ |
8c2c3df3 CM |
104 | |
105 | zinstall install: vmlinux | |
70f915a2 | 106 | $(Q)$(MAKE) $(build)=$(boot) $@ |
8c2c3df3 | 107 | |
70f915a2 RH |
108 | %.dtb: scripts |
109 | $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@ | |
110 | ||
862f464a | 111 | PHONY += dtbs dtbs_install |
9fb5e537 RR |
112 | |
113 | dtbs: prepare scripts | |
d38726c4 | 114 | $(Q)$(MAKE) $(build)=$(boot)/dts |
8c2c3df3 | 115 | |
9fb5e537 RR |
116 | dtbs_install: |
117 | $(Q)$(MAKE) $(dtbinst)=$(boot)/dts | |
118 | ||
c11dd134 | 119 | Image-dtb Image.gz-dtb: vmlinux scripts dtbs |
69a800c9 AR |
120 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ |
121 | ||
3c01742a KM |
122 | PHONY += vdso_install |
123 | vdso_install: | |
124 | $(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso $@ | |
125 | ||
8c2c3df3 CM |
126 | # We use MRPROPER_FILES and CLEAN_FILES now |
127 | archclean: | |
128 | $(Q)$(MAKE) $(clean)=$(boot) | |
c7c52e48 | 129 | $(Q)$(MAKE) $(clean)=$(boot)/dts |
8c2c3df3 | 130 | |
fb47dee8 KB |
131 | # We need to generate vdso-offsets.h before compiling certain files in kernel/. |
132 | # In order to do that, we should use the archprepare target, but we can't since | |
133 | # asm-offsets.h is included in some files used to generate vdso-offsets.h, and | |
134 | # asm-offsets.h is built in prepare0, for which archprepare is a dependency. | |
135 | # Therefore we need to generate the header after prepare0 has been made, hence | |
136 | # this hack. | |
137 | prepare: vdso_prepare | |
138 | vdso_prepare: prepare0 | |
139 | $(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso include/generated/vdso-offsets.h | |
140 | ||
8c2c3df3 CM |
141 | define archhelp |
142 | echo '* Image.gz - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)' | |
143 | echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' | |
70f915a2 | 144 | echo '* dtbs - Build device tree blobs for enabled boards' |
862f464a | 145 | echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)' |
8c2c3df3 CM |
146 | echo ' install - Install uncompressed kernel' |
147 | echo ' zinstall - Install compressed kernel' | |
148 | echo ' Install using (your) ~/bin/installkernel or' | |
149 | echo ' (distribution) /sbin/installkernel or' | |
150 | echo ' install to $$(INSTALL_PATH) and run lilo' | |
151 | endef |