xref: /openbmc/linux/arch/arm64/Makefile (revision 79f08d9e) 
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
18LIBGCC 		:= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
19
20KBUILD_DEFCONFIG := defconfig
21
22KBUILD_CFLAGS	+= -mgeneral-regs-only
23ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)
24KBUILD_CPPFLAGS	+= -mbig-endian
25AS		+= -EB
26LD		+= -EB
27else
28KBUILD_CPPFLAGS	+= -mlittle-endian
29AS		+= -EL
30LD		+= -EL
31endif
32
33comma = ,
34
35CHECKFLAGS	+= -D__aarch64__
36
37# Default value
38head-y		:= arch/arm64/kernel/head.o
39
40# The byte offset of the kernel image in RAM from the start of RAM.
41TEXT_OFFSET := 0x00080000
42
43export	TEXT_OFFSET GZFLAGS
44
45core-y		+= arch/arm64/kernel/ arch/arm64/mm/
46core-$(CONFIG_KVM) += arch/arm64/kvm/
47core-$(CONFIG_XEN) += arch/arm64/xen/
48libs-y		:= arch/arm64/lib/ $(libs-y)
49libs-y		+= $(LIBGCC)
50
51# Default target when executing plain make
52KBUILD_IMAGE	:= Image.gz
53KBUILD_DTBS	:= dtbs
54
55all:	$(KBUILD_IMAGE) $(KBUILD_DTBS)
56
57boot := arch/arm64/boot
58
59Image Image.gz: vmlinux
60	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
61
62zinstall install: vmlinux
63	$(Q)$(MAKE) $(build)=$(boot) $@
64
65%.dtb: scripts
66	$(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
67
68dtbs: scripts
69	$(Q)$(MAKE) $(build)=$(boot)/dts dtbs
70
71PHONY += vdso_install
72vdso_install:
73	$(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso $@
74
75# We use MRPROPER_FILES and CLEAN_FILES now
76archclean:
77	$(Q)$(MAKE) $(clean)=$(boot)
78
79define archhelp
80  echo  '* Image.gz      - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)'
81  echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
82  echo  '* dtbs          - Build device tree blobs for enabled boards'
83  echo  '  install       - Install uncompressed kernel'
84  echo  '  zinstall      - Install compressed kernel'
85  echo  '                  Install using (your) ~/bin/installkernel or'
86  echo  '                  (distribution) /sbin/installkernel or'
87  echo  '                  install to $$(INSTALL_PATH) and run lilo'
88endef
89