tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
13LDFLAGS_vmlinux :=-p --no-undefined -X
14CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET)
15OBJCOPYFLAGS :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
16GZFLAGS :=-9
17
18KBUILD_DEFCONFIG := defconfig
19
20KBUILD_CFLAGS += -mgeneral-regs-only
21ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)
22KBUILD_CPPFLAGS += -mbig-endian
23AS += -EB
24LD += -EB
25else
26KBUILD_CPPFLAGS += -mlittle-endian
27AS += -EL
28LD += -EL
29endif
30
31CHECKFLAGS += -D__aarch64__
32
33# Default value
34head-y := arch/arm64/kernel/head.o
35
36# The byte offset of the kernel image in RAM from the start of RAM.
37ifeq ($(CONFIG_ARM64_RANDOMIZE_TEXT_OFFSET), y)
38TEXT_OFFSET := $(shell awk 'BEGIN {srand(); printf "0x%03x000\n", int(512 * rand())}')
39else
40TEXT_OFFSET := 0x00080000
41endif
42
43export TEXT_OFFSET GZFLAGS
44
45core-y += arch/arm64/kernel/ arch/arm64/mm/
46core-$(CONFIG_NET) += arch/arm64/net/
47core-$(CONFIG_KVM) += arch/arm64/kvm/
48core-$(CONFIG_XEN) += arch/arm64/xen/
49core-$(CONFIG_CRYPTO) += arch/arm64/crypto/
50libs-y := arch/arm64/lib/ $(libs-y)
51core-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a
52
53# Default target when executing plain make
54KBUILD_IMAGE := Image.gz
55KBUILD_DTBS := dtbs
56
57all: $(KBUILD_IMAGE) $(KBUILD_DTBS)
58
59boot := arch/arm64/boot
60
61Image Image.gz: vmlinux
62 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
63
64zinstall install: vmlinux
65 $(Q)$(MAKE) $(build)=$(boot) $@
66
67%.dtb: scripts
68 $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
69
70PHONY += dtbs dtbs_install
71
72dtbs: prepare scripts
73 $(Q)$(MAKE) $(build)=$(boot)/dts
74
75dtbs_install:
76 $(Q)$(MAKE) $(dtbinst)=$(boot)/dts
77
78PHONY += vdso_install
79vdso_install:
80 $(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso $@
81
82# We use MRPROPER_FILES and CLEAN_FILES now
83archclean:
84 $(Q)$(MAKE) $(clean)=$(boot)
85 $(Q)$(MAKE) $(clean)=$(boot)/dts
86
87define archhelp
88 echo '* Image.gz - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)'
89 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
90 echo '* dtbs - Build device tree blobs for enabled boards'
91 echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)'
92 echo ' install - Install uncompressed kernel'
93 echo ' zinstall - Install compressed kernel'
94 echo ' Install using (your) ~/bin/installkernel or'
95 echo ' (distribution) /sbin/installkernel or'
96 echo ' install to $$(INSTALL_PATH) and run lilo'
97endef