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Merge tag 'mac80211-for-davem-2016-06-09' of git://git.kernel.org/pub/scm/linux/kerne...
[mirror_ubuntu-zesty-kernel.git] / arch / arm64 / Makefile
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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=$(TEXT_OFFSET)
15OBJCOPYFLAGS :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
16GZFLAGS :=-9
17
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18ifneq ($(CONFIG_RELOCATABLE),)
19LDFLAGS_vmlinux += -pie
20endif
21
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22KBUILD_DEFCONFIG := defconfig
23
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24# Check for binutils support for specific extensions
25lseinstr := $(call as-instr,.arch_extension lse,-DCONFIG_AS_LSE=1)
26
27ifeq ($(CONFIG_ARM64_LSE_ATOMICS), y)
28 ifeq ($(lseinstr),)
29$(warning LSE atomics not supported by binutils)
30 endif
31endif
32
33KBUILD_CFLAGS += -mgeneral-regs-only $(lseinstr)
728dabd6 34KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
67dfa175 35KBUILD_CFLAGS += $(call cc-option, -mpc-relative-literal-loads)
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36KBUILD_AFLAGS += $(lseinstr)
37
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38ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)
39KBUILD_CPPFLAGS += -mbig-endian
40AS += -EB
41LD += -EB
42else
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43KBUILD_CPPFLAGS += -mlittle-endian
44AS += -EL
45LD += -EL
a0974e6e 46endif
8c2c3df3 47
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48CHECKFLAGS += -D__aarch64__
49
fd045f6c 50ifeq ($(CONFIG_ARM64_MODULE_CMODEL_LARGE), y)
b6dd8e07 51KBUILD_CFLAGS_MODULE += -mcmodel=large
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52endif
53
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54ifeq ($(CONFIG_ARM64_MODULE_PLTS),y)
55KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/arm64/kernel/module.lds
56endif
57
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58# Default value
59head-y := arch/arm64/kernel/head.o
60
61# The byte offset of the kernel image in RAM from the start of RAM.
da57a369 62ifeq ($(CONFIG_ARM64_RANDOMIZE_TEXT_OFFSET), y)
4190312b 63TEXT_OFFSET := $(shell awk 'BEGIN {srand(); printf "0x%03x000\n", int(512 * rand())}')
da57a369 64else
8c2c3df3 65TEXT_OFFSET := 0x00080000
da57a369 66endif
8c2c3df3 67
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68# KASAN_SHADOW_OFFSET = VA_START + (1 << (VA_BITS - 3)) - (1 << 61)
69# in 32-bit arithmetic
70KASAN_SHADOW_OFFSET := $(shell printf "0x%08x00000000\n" $$(( \
71 (0xffffffff & (-1 << ($(CONFIG_ARM64_VA_BITS) - 32))) \
72 + (1 << ($(CONFIG_ARM64_VA_BITS) - 32 - 3)) \
73 - (1 << (64 - 32 - 3)) )) )
74
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75export TEXT_OFFSET GZFLAGS
76
77core-y += arch/arm64/kernel/ arch/arm64/mm/
e54bcde3 78core-$(CONFIG_NET) += arch/arm64/net/
6211753f 79core-$(CONFIG_KVM) += arch/arm64/kvm/
63917f0b 80core-$(CONFIG_XEN) += arch/arm64/xen/
2c98833a 81core-$(CONFIG_CRYPTO) += arch/arm64/crypto/
8c2c3df3 82libs-y := arch/arm64/lib/ $(libs-y)
ad08fd49 83core-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a
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84
85# Default target when executing plain make
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86KBUILD_IMAGE := Image.gz
87KBUILD_DTBS := dtbs
8c2c3df3 88
70f915a2 89all: $(KBUILD_IMAGE) $(KBUILD_DTBS)
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90
91boot := arch/arm64/boot
92
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93Image: vmlinux
94 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
95
96Image.%: vmlinux
70f915a2 97 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
8c2c3df3 98
8684fa3e 99zinstall install:
70f915a2 100 $(Q)$(MAKE) $(build)=$(boot) $@
8c2c3df3 101
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102%.dtb: scripts
103 $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
104
862f464a 105PHONY += dtbs dtbs_install
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106
107dtbs: prepare scripts
d38726c4 108 $(Q)$(MAKE) $(build)=$(boot)/dts
8c2c3df3 109
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110dtbs_install:
111 $(Q)$(MAKE) $(dtbinst)=$(boot)/dts
112
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113PHONY += vdso_install
114vdso_install:
115 $(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso $@
116
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117# We use MRPROPER_FILES and CLEAN_FILES now
118archclean:
119 $(Q)$(MAKE) $(clean)=$(boot)
c7c52e48 120 $(Q)$(MAKE) $(clean)=$(boot)/dts
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121
122define archhelp
123 echo '* Image.gz - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)'
124 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
70f915a2 125 echo '* dtbs - Build device tree blobs for enabled boards'
862f464a 126 echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)'
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127 echo ' install - Install uncompressed kernel'
128 echo ' zinstall - Install compressed kernel'
129 echo ' Install using (your) ~/bin/installkernel or'
130 echo ' (distribution) /sbin/installkernel or'
131 echo ' install to $$(INSTALL_PATH) and run lilo'
132endef