Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 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=$(TEXT_OFFSET) |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 15 | GZFLAGS :=-9 |
| 16 | |
Nick Desaulniers | b7ada2c | 2017-10-27 09:33:41 -0700 | [diff] [blame] | 17 | ifeq ($(CONFIG_RELOCATABLE), y) |
| 18 | # Pass --no-apply-dynamic-relocs to restore pre-binutils-2.27 behaviour |
| 19 | # for relative relocs, since this leads to better Image compression |
| 20 | # with the relocation offsets always being zero. |
| 21 | LDFLAGS_vmlinux += -pie -shared -Bsymbolic \ |
| 22 | $(call ld-option, --no-apply-dynamic-relocs) |
Ard Biesheuvel | 1e48ef7 | 2016-01-26 09:13:44 +0100 | [diff] [blame] | 23 | endif |
| 24 | |
Will Deacon | 6ffe992 | 2016-08-22 11:58:36 +0100 | [diff] [blame] | 25 | ifeq ($(CONFIG_ARM64_ERRATUM_843419),y) |
| 26 | ifeq ($(call ld-option, --fix-cortex-a53-843419),) |
| 27 | $(warning ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum) |
| 28 | else |
| 29 | LDFLAGS_vmlinux += --fix-cortex-a53-843419 |
| 30 | endif |
| 31 | endif |
| 32 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 33 | KBUILD_DEFCONFIG := defconfig |
| 34 | |
Will Deacon | c09d6a0 | 2015-02-03 16:14:13 +0000 | [diff] [blame] | 35 | # Check for binutils support for specific extensions |
| 36 | lseinstr := $(call as-instr,.arch_extension lse,-DCONFIG_AS_LSE=1) |
| 37 | |
| 38 | ifeq ($(CONFIG_ARM64_LSE_ATOMICS), y) |
| 39 | ifeq ($(lseinstr),) |
| 40 | $(warning LSE atomics not supported by binutils) |
| 41 | endif |
| 42 | endif |
| 43 | |
| 44 | KBUILD_CFLAGS += -mgeneral-regs-only $(lseinstr) |
William Cohen | 728dabd | 2016-01-21 22:56:26 -0500 | [diff] [blame] | 45 | KBUILD_CFLAGS += -fno-asynchronous-unwind-tables |
dann frazier | 67dfa17 | 2016-01-25 16:52:16 -0700 | [diff] [blame] | 46 | KBUILD_CFLAGS += $(call cc-option, -mpc-relative-literal-loads) |
Greg Hackmann | a9c2864 | 2014-12-01 16:13:30 -0800 | [diff] [blame] | 47 | KBUILD_CFLAGS += -fno-pic |
Will Deacon | c09d6a0 | 2015-02-03 16:14:13 +0000 | [diff] [blame] | 48 | KBUILD_AFLAGS += $(lseinstr) |
| 49 | |
Will Deacon | a0974e6 | 2013-10-11 14:52:08 +0100 | [diff] [blame] | 50 | ifeq ($(CONFIG_CPU_BIG_ENDIAN), y) |
| 51 | KBUILD_CPPFLAGS += -mbig-endian |
| 52 | AS += -EB |
| 53 | LD += -EB |
Michal Marek | cfa88c7 | 2016-08-30 10:31:35 +0200 | [diff] [blame] | 54 | UTS_MACHINE := aarch64_be |
Will Deacon | a0974e6 | 2013-10-11 14:52:08 +0100 | [diff] [blame] | 55 | else |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 56 | KBUILD_CPPFLAGS += -mlittle-endian |
| 57 | AS += -EL |
| 58 | LD += -EL |
Michal Marek | cfa88c7 | 2016-08-30 10:31:35 +0200 | [diff] [blame] | 59 | UTS_MACHINE := aarch64 |
Will Deacon | a0974e6 | 2013-10-11 14:52:08 +0100 | [diff] [blame] | 60 | endif |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 61 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 62 | CHECKFLAGS += -D__aarch64__ |
| 63 | |
Ard Biesheuvel | fd045f6 | 2015-11-24 12:37:35 +0100 | [diff] [blame] | 64 | ifeq ($(CONFIG_ARM64_MODULE_CMODEL_LARGE), y) |
Will Deacon | b6dd8e0 | 2015-10-08 11:11:17 +0100 | [diff] [blame] | 65 | KBUILD_CFLAGS_MODULE += -mcmodel=large |
Will Deacon | df057cc | 2015-03-17 12:15:02 +0000 | [diff] [blame] | 66 | endif |
| 67 | |
Ard Biesheuvel | fd045f6 | 2015-11-24 12:37:35 +0100 | [diff] [blame] | 68 | ifeq ($(CONFIG_ARM64_MODULE_PLTS),y) |
| 69 | KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/arm64/kernel/module.lds |
| 70 | endif |
| 71 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 72 | # Default value |
| 73 | head-y := arch/arm64/kernel/head.o |
| 74 | |
| 75 | # The byte offset of the kernel image in RAM from the start of RAM. |
Mark Rutland | da57a36 | 2014-06-24 16:51:37 +0100 | [diff] [blame] | 76 | ifeq ($(CONFIG_ARM64_RANDOMIZE_TEXT_OFFSET), y) |
Mark Rutland | aed7eb8 | 2016-05-31 15:58:00 +0100 | [diff] [blame] | 77 | TEXT_OFFSET := $(shell awk "BEGIN {srand(); printf \"0x%06x\n\", \ |
| 78 | int(2 * 1024 * 1024 / (2 ^ $(CONFIG_ARM64_PAGE_SHIFT)) * \ |
| 79 | rand()) * (2 ^ $(CONFIG_ARM64_PAGE_SHIFT))}") |
Mark Rutland | da57a36 | 2014-06-24 16:51:37 +0100 | [diff] [blame] | 80 | else |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 81 | TEXT_OFFSET := 0x00080000 |
Mark Rutland | da57a36 | 2014-06-24 16:51:37 +0100 | [diff] [blame] | 82 | endif |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 83 | |
Andrey Ryabinin | 39d114d | 2015-10-12 18:52:58 +0300 | [diff] [blame] | 84 | # KASAN_SHADOW_OFFSET = VA_START + (1 << (VA_BITS - 3)) - (1 << 61) |
| 85 | # in 32-bit arithmetic |
| 86 | KASAN_SHADOW_OFFSET := $(shell printf "0x%08x00000000\n" $$(( \ |
| 87 | (0xffffffff & (-1 << ($(CONFIG_ARM64_VA_BITS) - 32))) \ |
| 88 | + (1 << ($(CONFIG_ARM64_VA_BITS) - 32 - 3)) \ |
| 89 | - (1 << (64 - 32 - 3)) )) ) |
| 90 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 91 | export TEXT_OFFSET GZFLAGS |
| 92 | |
| 93 | core-y += arch/arm64/kernel/ arch/arm64/mm/ |
Zi Shen Lim | e54bcde | 2014-08-26 21:15:30 -0700 | [diff] [blame] | 94 | core-$(CONFIG_NET) += arch/arm64/net/ |
Marc Zyngier | 6211753 | 2012-12-10 16:41:44 +0000 | [diff] [blame] | 95 | core-$(CONFIG_KVM) += arch/arm64/kvm/ |
Catalin Marinas | 63917f0 | 2013-06-12 16:48:38 +0100 | [diff] [blame] | 96 | core-$(CONFIG_XEN) += arch/arm64/xen/ |
Ard Biesheuvel | 2c98833 | 2014-03-06 16:23:33 +0800 | [diff] [blame] | 97 | core-$(CONFIG_CRYPTO) += arch/arm64/crypto/ |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 98 | libs-y := arch/arm64/lib/ $(libs-y) |
Steve Capper | ad08fd4 | 2015-03-16 09:30:39 +0000 | [diff] [blame] | 99 | core-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 100 | |
| 101 | # Default target when executing plain make |
Alex Ray | 911da23 | 2014-03-17 13:44:01 -0700 | [diff] [blame] | 102 | ifeq ($(CONFIG_BUILD_ARM64_APPENDED_DTB_IMAGE),y) |
Dmitry Shmidt | 4bdcc93 | 2017-03-28 13:30:18 -0700 | [diff] [blame] | 103 | KBUILD_IMAGE := $(subst $\",,$(CONFIG_BUILD_ARM64_APPENDED_KERNEL_IMAGE_NAME)) |
Alex Ray | 911da23 | 2014-03-17 13:44:01 -0700 | [diff] [blame] | 104 | else |
Rob Herring | 70f915a | 2012-12-03 17:17:21 -0600 | [diff] [blame] | 105 | KBUILD_IMAGE := Image.gz |
Alex Ray | 911da23 | 2014-03-17 13:44:01 -0700 | [diff] [blame] | 106 | endif |
| 107 | |
Rob Herring | 70f915a | 2012-12-03 17:17:21 -0600 | [diff] [blame] | 108 | KBUILD_DTBS := dtbs |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 109 | |
Puja Gupta | 22625ce | 2017-03-17 13:27:09 -0700 | [diff] [blame] | 110 | ifeq ($(CONFIG_BUILD_ARM64_DT_OVERLAY),y) |
| 111 | export DTC_FLAGS := -@ |
| 112 | endif |
| 113 | |
Rob Herring | 70f915a | 2012-12-03 17:17:21 -0600 | [diff] [blame] | 114 | all: $(KBUILD_IMAGE) $(KBUILD_DTBS) |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 115 | |
| 116 | boot := arch/arm64/boot |
| 117 | |
Olof Johansson | 0723c05 | 2015-07-16 21:26:16 +0100 | [diff] [blame] | 118 | Image: vmlinux |
| 119 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ |
| 120 | |
Masahiro Yamada | 9ca4e58 | 2016-06-21 10:44:00 +0900 | [diff] [blame] | 121 | Image.%: Image |
Rob Herring | 70f915a | 2012-12-03 17:17:21 -0600 | [diff] [blame] | 122 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 123 | |
Masahiro Yamada | 8684fa3 | 2016-02-19 15:05:50 +0900 | [diff] [blame] | 124 | zinstall install: |
Rob Herring | 70f915a | 2012-12-03 17:17:21 -0600 | [diff] [blame] | 125 | $(Q)$(MAKE) $(build)=$(boot) $@ |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 126 | |
Rob Herring | 70f915a | 2012-12-03 17:17:21 -0600 | [diff] [blame] | 127 | %.dtb: scripts |
| 128 | $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@ |
| 129 | |
Robert Richter | 862f464 | 2014-08-29 14:17:02 +0200 | [diff] [blame] | 130 | PHONY += dtbs dtbs_install |
Robert Richter | 9fb5e53 | 2014-09-03 15:29:24 +0200 | [diff] [blame] | 131 | |
| 132 | dtbs: prepare scripts |
Robert Richter | d38726c | 2014-09-03 15:54:55 +0200 | [diff] [blame] | 133 | $(Q)$(MAKE) $(build)=$(boot)/dts |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 134 | |
Robert Richter | 9fb5e53 | 2014-09-03 15:29:24 +0200 | [diff] [blame] | 135 | dtbs_install: |
| 136 | $(Q)$(MAKE) $(dtbinst)=$(boot)/dts |
| 137 | |
Haojian Zhuang | e23ef5f | 2016-04-22 17:23:29 +0800 | [diff] [blame] | 138 | Image-dtb Image.gz-dtb: vmlinux scripts dtbs |
Alex Ray | 911da23 | 2014-03-17 13:44:01 -0700 | [diff] [blame] | 139 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ |
| 140 | |
Kyle McMartin | 3c01742 | 2013-06-16 20:32:44 +0100 | [diff] [blame] | 141 | PHONY += vdso_install |
| 142 | vdso_install: |
| 143 | $(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso $@ |
| 144 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 145 | # We use MRPROPER_FILES and CLEAN_FILES now |
| 146 | archclean: |
| 147 | $(Q)$(MAKE) $(clean)=$(boot) |
Jungseok Lee | c7c52e4 | 2015-01-19 14:57:00 +0000 | [diff] [blame] | 148 | $(Q)$(MAKE) $(clean)=$(boot)/dts |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 149 | |
Kevin Brodsky | a66649d | 2016-05-12 17:39:15 +0100 | [diff] [blame] | 150 | # We need to generate vdso-offsets.h before compiling certain files in kernel/. |
| 151 | # In order to do that, we should use the archprepare target, but we can't since |
| 152 | # asm-offsets.h is included in some files used to generate vdso-offsets.h, and |
| 153 | # asm-offsets.h is built in prepare0, for which archprepare is a dependency. |
| 154 | # Therefore we need to generate the header after prepare0 has been made, hence |
| 155 | # this hack. |
| 156 | prepare: vdso_prepare |
| 157 | vdso_prepare: prepare0 |
| 158 | $(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso include/generated/vdso-offsets.h |
| 159 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 160 | define archhelp |
| 161 | echo '* Image.gz - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)' |
| 162 | echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' |
Rob Herring | 70f915a | 2012-12-03 17:17:21 -0600 | [diff] [blame] | 163 | echo '* dtbs - Build device tree blobs for enabled boards' |
Robert Richter | 862f464 | 2014-08-29 14:17:02 +0200 | [diff] [blame] | 164 | echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)' |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 165 | echo ' install - Install uncompressed kernel' |
| 166 | echo ' zinstall - Install compressed kernel' |
| 167 | echo ' Install using (your) ~/bin/installkernel or' |
| 168 | echo ' (distribution) /sbin/installkernel or' |
| 169 | echo ' install to $$(INSTALL_PATH) and run lilo' |
| 170 | endef |