xref: /openbmc/linux/arch/arm64/Makefile (revision 861e10be) 
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
23KBUILD_CPPFLAGS	+= -mlittle-endian
24AS		+= -EL
25LD		+= -EL
26
27comma = ,
28
29CHECKFLAGS	+= -D__aarch64__
30
31# Default value
32head-y		:= arch/arm64/kernel/head.o
33
34# The byte offset of the kernel image in RAM from the start of RAM.
35TEXT_OFFSET := 0x00080000
36
37export	TEXT_OFFSET GZFLAGS
38
39core-y		+= arch/arm64/kernel/ arch/arm64/mm/
40libs-y		:= arch/arm64/lib/ $(libs-y)
41libs-y		+= $(LIBGCC)
42
43# Default target when executing plain make
44KBUILD_IMAGE	:= Image.gz
45KBUILD_DTBS	:= dtbs
46
47all:	$(KBUILD_IMAGE) $(KBUILD_DTBS)
48
49boot := arch/arm64/boot
50
51Image Image.gz: vmlinux
52	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
53
54zinstall install: vmlinux
55	$(Q)$(MAKE) $(build)=$(boot) $@
56
57%.dtb: scripts
58	$(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
59
60dtbs: scripts
61	$(Q)$(MAKE) $(build)=$(boot)/dts dtbs
62
63# We use MRPROPER_FILES and CLEAN_FILES now
64archclean:
65	$(Q)$(MAKE) $(clean)=$(boot)
66
67define archhelp
68  echo  '* Image.gz      - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)'
69  echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
70  echo  '* dtbs          - Build device tree blobs for enabled boards'
71  echo  '  install       - Install uncompressed kernel'
72  echo  '  zinstall      - Install compressed kernel'
73  echo  '                  Install using (your) ~/bin/installkernel or'
74  echo  '                  (distribution) /sbin/installkernel or'
75  echo  '                  install to $$(INSTALL_PATH) and run lilo'
76endef
77