arm64: Build infrastructure
This patch adds Makefile and Kconfig files required for building an AArch64 kernel. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Catalin Marinas
parent
10b663aef1
commit
8c2c3df31e
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config ARM64
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def_bool y
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select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
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select GENERIC_CLOCKEVENTS
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select GENERIC_HARDIRQS_NO_DEPRECATED
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select GENERIC_IOMAP
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select GENERIC_IRQ_PROBE
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select GENERIC_IRQ_SHOW
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select GENERIC_SMP_IDLE_THREAD
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select GENERIC_TIME_VSYSCALL
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select HARDIRQS_SW_RESEND
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select HAVE_ARCH_TRACEHOOK
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select HAVE_DMA_API_DEBUG
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select HAVE_DMA_ATTRS
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select HAVE_GENERIC_DMA_COHERENT
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select HAVE_GENERIC_HARDIRQS
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select HAVE_HW_BREAKPOINT if PERF_EVENTS
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select HAVE_IRQ_WORK
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select HAVE_MEMBLOCK
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select HAVE_PERF_EVENTS
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select HAVE_SPARSE_IRQ
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select IRQ_DOMAIN
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select NO_BOOTMEM
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select OF
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select OF_EARLY_FLATTREE
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select PERF_USE_VMALLOC
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select RTC_LIB
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select SPARSE_IRQ
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help
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ARM 64-bit (AArch64) Linux support.
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config 64BIT
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def_bool y
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config ARCH_PHYS_ADDR_T_64BIT
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def_bool y
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config MMU
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def_bool y
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config NO_IOPORT
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def_bool y
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config STACKTRACE_SUPPORT
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def_bool y
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config LOCKDEP_SUPPORT
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def_bool y
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config TRACE_IRQFLAGS_SUPPORT
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def_bool y
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config GENERIC_LOCKBREAK
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def_bool y
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depends on SMP && PREEMPT
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config RWSEM_GENERIC_SPINLOCK
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def_bool y
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config GENERIC_HWEIGHT
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def_bool y
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config GENERIC_CSUM
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def_bool y
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config GENERIC_CALIBRATE_DELAY
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def_bool y
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config ZONE_DMA32
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def_bool y
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config ARCH_DMA_ADDR_T_64BIT
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def_bool y
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config NEED_DMA_MAP_STATE
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def_bool y
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config NEED_SG_DMA_LENGTH
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def_bool y
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config SWIOTLB
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def_bool y
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config IOMMU_HELPER
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def_bool SWIOTLB
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source "init/Kconfig"
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source "kernel/Kconfig.freezer"
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menu "System Type"
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endmenu
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menu "Bus support"
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config ARM_AMBA
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bool
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endmenu
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menu "Kernel Features"
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source "kernel/time/Kconfig"
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config ARM64_64K_PAGES
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bool "Enable 64KB pages support"
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help
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This feature enables 64KB pages support (4KB by default)
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allowing only two levels of page tables and faster TLB
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look-up. AArch32 emulation is not available when this feature
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is enabled.
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config SMP
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bool "Symmetric Multi-Processing"
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select USE_GENERIC_SMP_HELPERS
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help
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This enables support for systems with more than one CPU. If
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you say N here, the kernel will run on single and
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multiprocessor machines, but will use only one CPU of a
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multiprocessor machine. If you say Y here, the kernel will run
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on many, but not all, single processor machines. On a single
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processor machine, the kernel will run faster if you say N
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here.
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If you don't know what to do here, say N.
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config NR_CPUS
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int "Maximum number of CPUs (2-32)"
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range 2 32
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depends on SMP
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default "4"
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source kernel/Kconfig.preempt
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config HZ
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int
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default 100
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config ARCH_HAS_HOLES_MEMORYMODEL
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def_bool y if SPARSEMEM
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config ARCH_SPARSEMEM_ENABLE
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def_bool y
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select SPARSEMEM_VMEMMAP_ENABLE
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config ARCH_SPARSEMEM_DEFAULT
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def_bool ARCH_SPARSEMEM_ENABLE
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config ARCH_SELECT_MEMORY_MODEL
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def_bool ARCH_SPARSEMEM_ENABLE
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config HAVE_ARCH_PFN_VALID
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def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
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config HW_PERF_EVENTS
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bool "Enable hardware performance counter support for perf events"
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depends on PERF_EVENTS
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default y
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help
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Enable hardware performance counter support for perf events. If
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disabled, perf events will use software events only.
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source "mm/Kconfig"
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endmenu
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menu "Boot options"
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config CMDLINE
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string "Default kernel command string"
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default ""
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help
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Provide a set of default command-line options at build time by
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entering them here. As a minimum, you should specify the the
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root device (e.g. root=/dev/nfs).
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config CMDLINE_FORCE
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bool "Always use the default kernel command string"
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help
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Always use the default kernel command string, even if the boot
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loader passes other arguments to the kernel.
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This is useful if you cannot or don't want to change the
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command-line options your boot loader passes to the kernel.
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endmenu
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menu "Userspace binary formats"
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source "fs/Kconfig.binfmt"
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config COMPAT
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bool "Kernel support for 32-bit EL0"
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depends on !ARM64_64K_PAGES
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select COMPAT_BINFMT_ELF
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help
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This option enables support for a 32-bit EL0 running under a 64-bit
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kernel at EL1. AArch32-specific components such as system calls,
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the user helper functions, VFP support and the ptrace interface are
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handled appropriately by the kernel.
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If you want to execute 32-bit userspace applications, say Y.
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config SYSVIPC_COMPAT
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def_bool y
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depends on COMPAT && SYSVIPC
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endmenu
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source "net/Kconfig"
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source "drivers/Kconfig"
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source "fs/Kconfig"
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source "arch/arm64/Kconfig.debug"
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source "security/Kconfig"
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source "crypto/Kconfig"
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source "lib/Kconfig"
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menu "Kernel hacking"
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source "lib/Kconfig.debug"
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config FRAME_POINTER
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bool
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default y
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config DEBUG_ERRORS
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bool "Verbose kernel error messages"
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depends on DEBUG_KERNEL
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help
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This option controls verbose debugging information which can be
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printed when the kernel detects an internal error. This debugging
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information is useful to kernel hackers when tracking down problems,
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but mostly meaningless to other people. It's safe to say Y unless
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you are concerned with the code size or don't want to see these
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messages.
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config DEBUG_STACK_USAGE
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bool "Enable stack utilization instrumentation"
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depends on DEBUG_KERNEL
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help
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Enables the display of the minimum amount of free stack which each
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task has ever had available in the sysrq-T output.
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endmenu
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@ -0,0 +1,71 @@
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#
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# arch/arm64/Makefile
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#
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# This file is included by the global makefile so that you can add your own
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# architecture-specific flags and dependencies.
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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# Copyright (C) 1995-2001 by Russell King
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LDFLAGS_vmlinux :=-p --no-undefined -X
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CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET)
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OBJCOPYFLAGS :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
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GZFLAGS :=-9
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LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
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KBUILD_DEFCONFIG := defconfig
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KBUILD_CFLAGS += -mgeneral-regs-only
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KBUILD_CPPFLAGS += -mlittle-endian
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AS += -EL
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LD += -EL
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comma = ,
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CHECKFLAGS += -D__aarch64__
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# Default value
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head-y := arch/arm64/kernel/head.o
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# The byte offset of the kernel image in RAM from the start of RAM.
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TEXT_OFFSET := 0x00080000
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export TEXT_OFFSET GZFLAGS
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core-y += arch/arm64/kernel/ arch/arm64/mm/
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libs-y := arch/arm64/lib/ $(libs-y)
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libs-y += $(LIBGCC)
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# Default target when executing plain make
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KBUILD_IMAGE := Image.gz
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all: $(KBUILD_IMAGE)
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boot := arch/arm64/boot
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Image Image.gz: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
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zinstall install: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
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%.dtb:
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$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
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# We use MRPROPER_FILES and CLEAN_FILES now
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archclean:
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$(Q)$(MAKE) $(clean)=$(boot)
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define archhelp
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echo '* Image.gz - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)'
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echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
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echo ' install - Install uncompressed kernel'
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echo ' zinstall - Install compressed kernel'
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echo ' Install using (your) ~/bin/installkernel or'
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echo ' (distribution) /sbin/installkernel or'
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echo ' install to $$(INSTALL_PATH) and run lilo'
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endef
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@ -0,0 +1,2 @@
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Image
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Image.gz
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@ -0,0 +1,36 @@
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#
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# arch/arm64/boot/Makefile
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#
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# This file is included by the global makefile so that you can add your own
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# architecture-specific flags and dependencies.
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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# Copyright (C) 2012, ARM Ltd.
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# Author: Will Deacon <will.deacon@arm.com>
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#
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# Based on the ia64 boot/Makefile.
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#
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targets := Image Image.gz
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$(obj)/Image: vmlinux FORCE
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$(call if_changed,objcopy)
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$(obj)/Image.gz: $(obj)/Image FORCE
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$(call if_changed,gzip)
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$(obj)/%.dtb: $(src)/dts/%.dts
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$(call cmd,dtc)
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install: $(obj)/Image
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$(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
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$(obj)/Image System.map "$(INSTALL_PATH)"
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zinstall: $(obj)/Image.gz
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$(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
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$(obj)/Image.gz System.map "$(INSTALL_PATH)"
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clean-files += *.dtb
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#!/bin/sh
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#
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# arch/arm64/boot/install.sh
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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# Copyright (C) 1995 by Linus Torvalds
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#
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# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin
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# Adapted from code in arch/i386/boot/install.sh by Russell King
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#
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# "make install" script for the AArch64 Linux port
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#
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# Arguments:
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# $1 - kernel version
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# $2 - kernel image file
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# $3 - kernel map file
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# $4 - default install path (blank if root directory)
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#
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# User may have a custom install script
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if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
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if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
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if [ "$(basename $2)" = "Image.gz" ]; then
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# Compressed install
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echo "Installing compressed kernel"
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base=vmlinuz
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else
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# Normal install
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echo "Installing normal kernel"
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base=vmlinux
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fi
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if [ -f $4/$base-$1 ]; then
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mv $4/$base-$1 $4/$base-$1.old
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fi
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cat $2 > $4/$base-$1
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# Install system map file
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if [ -f $4/System.map-$1 ]; then
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mv $4/System.map-$1 $4/System.map-$1.old
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fi
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cp $3 $4/System.map-$1
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@ -0,0 +1,85 @@
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CONFIG_EXPERIMENTAL=y
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# CONFIG_LOCALVERSION_AUTO is not set
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# CONFIG_SWAP is not set
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CONFIG_SYSVIPC=y
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CONFIG_POSIX_MQUEUE=y
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CONFIG_BSD_PROCESS_ACCT=y
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CONFIG_BSD_PROCESS_ACCT_V3=y
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CONFIG_NO_HZ=y
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CONFIG_HIGH_RES_TIMERS=y
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CONFIG_IKCONFIG=y
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CONFIG_IKCONFIG_PROC=y
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CONFIG_LOG_BUF_SHIFT=14
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# CONFIG_UTS_NS is not set
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# CONFIG_IPC_NS is not set
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# CONFIG_PID_NS is not set
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# CONFIG_NET_NS is not set
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CONFIG_SCHED_AUTOGROUP=y
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CONFIG_BLK_DEV_INITRD=y
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CONFIG_KALLSYMS_ALL=y
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# CONFIG_COMPAT_BRK is not set
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CONFIG_PROFILING=y
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CONFIG_MODULES=y
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CONFIG_MODULE_UNLOAD=y
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# CONFIG_BLK_DEV_BSG is not set
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# CONFIG_IOSCHED_DEADLINE is not set
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CONFIG_SMP=y
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CONFIG_PREEMPT_VOLUNTARY=y
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CONFIG_CMDLINE="console=ttyAMA0"
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# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
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CONFIG_COMPAT=y
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CONFIG_NET=y
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CONFIG_PACKET=y
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CONFIG_UNIX=y
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CONFIG_INET=y
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CONFIG_IP_PNP=y
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CONFIG_IP_PNP_DHCP=y
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CONFIG_IP_PNP_BOOTP=y
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# CONFIG_INET_LRO is not set
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# CONFIG_IPV6 is not set
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# CONFIG_WIRELESS is not set
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CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
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CONFIG_DEVTMPFS=y
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# CONFIG_BLK_DEV is not set
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CONFIG_SCSI=y
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# CONFIG_SCSI_PROC_FS is not set
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CONFIG_BLK_DEV_SD=y
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# CONFIG_SCSI_LOWLEVEL is not set
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CONFIG_NETDEVICES=y
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CONFIG_MII=y
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# CONFIG_WLAN is not set
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CONFIG_INPUT_EVDEV=y
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# CONFIG_SERIO_I8042 is not set
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# CONFIG_SERIO_SERPORT is not set
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CONFIG_LEGACY_PTY_COUNT=16
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# CONFIG_HW_RANDOM is not set
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# CONFIG_HWMON is not set
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CONFIG_FB=y
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# CONFIG_VGA_CONSOLE is not set
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CONFIG_FRAMEBUFFER_CONSOLE=y
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CONFIG_LOGO=y
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# CONFIG_LOGO_LINUX_MONO is not set
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# CONFIG_LOGO_LINUX_VGA16 is not set
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# CONFIG_USB_SUPPORT is not set
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# CONFIG_IOMMU_SUPPORT is not set
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CONFIG_EXT2_FS=y
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CONFIG_EXT3_FS=y
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# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
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# CONFIG_EXT3_FS_XATTR is not set
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CONFIG_FUSE_FS=y
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CONFIG_CUSE=y
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CONFIG_VFAT_FS=y
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CONFIG_TMPFS=y
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# CONFIG_MISC_FILESYSTEMS is not set
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CONFIG_NFS_FS=y
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CONFIG_ROOT_NFS=y
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CONFIG_NLS_CODEPAGE_437=y
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CONFIG_NLS_ISO8859_1=y
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CONFIG_MAGIC_SYSRQ=y
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CONFIG_DEBUG_FS=y
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CONFIG_DEBUG_KERNEL=y
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# CONFIG_SCHED_DEBUG is not set
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CONFIG_DEBUG_INFO=y
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# CONFIG_FTRACE is not set
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CONFIG_ATOMIC64_SELFTEST=y
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CONFIG_DEBUG_ERRORS=y
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@ -0,0 +1 @@
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/* Empty for now */
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@ -0,0 +1 @@
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vmlinux.lds
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@ -0,0 +1,27 @@
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#
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# Makefile for the linux kernel.
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#
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|
||||
CPPFLAGS_vmlinux.lds := -DTEXT_OFFSET=$(TEXT_OFFSET)
|
||||
AFLAGS_head.o := -DTEXT_OFFSET=$(TEXT_OFFSET)
|
||||
|
||||
# Object file lists.
|
||||
arm64-obj-y := cputable.o debug-monitors.o entry.o irq.o fpsimd.o \
|
||||
entry-fpsimd.o process.o ptrace.o setup.o signal.o \
|
||||
sys.o stacktrace.o time.o traps.o io.o vdso.o
|
||||
|
||||
arm64-obj-$(CONFIG_COMPAT) += sys32.o kuser32.o signal32.o \
|
||||
sys_compat.o
|
||||
arm64-obj-$(CONFIG_MODULES) += arm64ksyms.o module.o
|
||||
arm64-obj-$(CONFIG_SMP) += smp.o
|
||||
arm64-obj-$(CONFIG_HW_PERF_EVENTS) += perf_event.o
|
||||
arm64-obj-$(CONFIG_HAVE_HW_BREAKPOINT)+= hw_breakpoint.o
|
||||
|
||||
obj-y += $(arm64-obj-y) vdso/
|
||||
obj-m += $(arm64-obj-m)
|
||||
head-y := head.o
|
||||
extra-y := $(head-y) vmlinux.lds
|
||||
|
||||
# vDSO - this must be built first to generate the symbol offsets
|
||||
$(call objectify,$(arm64-obj-y)): $(obj)/vdso/vdso-offsets.h
|
||||
$(obj)/vdso/vdso-offsets.h: $(obj)/vdso
|
||||
|
|
@ -0,0 +1,126 @@
|
|||
/*
|
||||
* ld script to make ARM Linux kernel
|
||||
* taken from the i386 version by Russell King
|
||||
* Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
|
||||
*/
|
||||
|
||||
#include <asm-generic/vmlinux.lds.h>
|
||||
#include <asm/thread_info.h>
|
||||
#include <asm/memory.h>
|
||||
#include <asm/page.h>
|
||||
|
||||
#define ARM_EXIT_KEEP(x)
|
||||
#define ARM_EXIT_DISCARD(x) x
|
||||
|
||||
OUTPUT_ARCH(aarch64)
|
||||
ENTRY(stext)
|
||||
|
||||
jiffies = jiffies_64;
|
||||
|
||||
SECTIONS
|
||||
{
|
||||
/*
|
||||
* XXX: The linker does not define how output sections are
|
||||
* assigned to input sections when there are multiple statements
|
||||
* matching the same input section name. There is no documented
|
||||
* order of matching.
|
||||
*/
|
||||
/DISCARD/ : {
|
||||
ARM_EXIT_DISCARD(EXIT_TEXT)
|
||||
ARM_EXIT_DISCARD(EXIT_DATA)
|
||||
EXIT_CALL
|
||||
*(.discard)
|
||||
*(.discard.*)
|
||||
}
|
||||
|
||||
. = PAGE_OFFSET + TEXT_OFFSET;
|
||||
|
||||
.head.text : {
|
||||
_text = .;
|
||||
HEAD_TEXT
|
||||
}
|
||||
.text : { /* Real text segment */
|
||||
_stext = .; /* Text and read-only data */
|
||||
*(.smp.pen.text)
|
||||
__exception_text_start = .;
|
||||
*(.exception.text)
|
||||
__exception_text_end = .;
|
||||
IRQENTRY_TEXT
|
||||
TEXT_TEXT
|
||||
SCHED_TEXT
|
||||
LOCK_TEXT
|
||||
*(.fixup)
|
||||
*(.gnu.warning)
|
||||
. = ALIGN(16);
|
||||
*(.got) /* Global offset table */
|
||||
}
|
||||
|
||||
RO_DATA(PAGE_SIZE)
|
||||
|
||||
_etext = .; /* End of text and rodata section */
|
||||
|
||||
. = ALIGN(PAGE_SIZE);
|
||||
__init_begin = .;
|
||||
|
||||
INIT_TEXT_SECTION(8)
|
||||
.exit.text : {
|
||||
ARM_EXIT_KEEP(EXIT_TEXT)
|
||||
}
|
||||
. = ALIGN(16);
|
||||
.init.data : {
|
||||
INIT_DATA
|
||||
INIT_SETUP(16)
|
||||
INIT_CALLS
|
||||
CON_INITCALL
|
||||
SECURITY_INITCALL
|
||||
INIT_RAM_FS
|
||||
}
|
||||
.exit.data : {
|
||||
ARM_EXIT_KEEP(EXIT_DATA)
|
||||
}
|
||||
|
||||
PERCPU_SECTION(64)
|
||||
|
||||
__init_end = .;
|
||||
. = ALIGN(THREAD_SIZE);
|
||||
__data_loc = .;
|
||||
|
||||
.data : AT(__data_loc) {
|
||||
_data = .; /* address in memory */
|
||||
_sdata = .;
|
||||
|
||||
/*
|
||||
* first, the init task union, aligned
|
||||
* to an 8192 byte boundary.
|
||||
*/
|
||||
INIT_TASK_DATA(THREAD_SIZE)
|
||||
NOSAVE_DATA
|
||||
CACHELINE_ALIGNED_DATA(64)
|
||||
READ_MOSTLY_DATA(64)
|
||||
|
||||
/*
|
||||
* The exception fixup table (might need resorting at runtime)
|
||||
*/
|
||||
. = ALIGN(32);
|
||||
__start___ex_table = .;
|
||||
*(__ex_table)
|
||||
__stop___ex_table = .;
|
||||
|
||||
/*
|
||||
* and the usual data section
|
||||
*/
|
||||
DATA_DATA
|
||||
CONSTRUCTORS
|
||||
|
||||
_edata = .;
|
||||
}
|
||||
_edata_loc = __data_loc + SIZEOF(.data);
|
||||
|
||||
NOTES
|
||||
|
||||
BSS_SECTION(0, 0, 0)
|
||||
_end = .;
|
||||
|
||||
STABS_DEBUG
|
||||
.comment 0 : { *(.comment) }
|
||||
}
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
obj-y := dma-mapping.o extable.o fault.o init.o \
|
||||
cache.o copypage.o flush.o \
|
||||
ioremap.o mmap.o pgd.o mmu.o \
|
||||
context.o tlb.o proc.o
|
||||
|
|
@ -1153,7 +1153,8 @@ menuconfig EXPERT
|
|||
|
||||
config UID16
|
||||
bool "Enable 16-bit UID system calls" if EXPERT
|
||||
depends on ARM || BLACKFIN || CRIS || FRV || H8300 || X86_32 || M68K || (S390 && !64BIT) || SUPERH || SPARC32 || (SPARC64 && COMPAT) || UML || (X86_64 && IA32_EMULATION)
|
||||
depends on ARM || BLACKFIN || CRIS || FRV || H8300 || X86_32 || M68K || (S390 && !64BIT) || SUPERH || SPARC32 || (SPARC64 && COMPAT) || UML || (X86_64 && IA32_EMULATION) \
|
||||
|| AARCH32_EMULATION
|
||||
default y
|
||||
help
|
||||
This enables the legacy 16-bit UID syscall wrappers.
|
||||
|
|
|
|||
|
|
@ -452,7 +452,8 @@ config SLUB_STATS
|
|||
config DEBUG_KMEMLEAK
|
||||
bool "Kernel memory leak detector"
|
||||
depends on DEBUG_KERNEL && EXPERIMENTAL && \
|
||||
(X86 || ARM || PPC || MIPS || S390 || SPARC64 || SUPERH || MICROBLAZE || TILE)
|
||||
(X86 || ARM || PPC || MIPS || S390 || SPARC64 || SUPERH || \
|
||||
MICROBLAZE || TILE || ARM64)
|
||||
|
||||
select DEBUG_FS
|
||||
select STACKTRACE if STACKTRACE_SUPPORT
|
||||
|
|
@ -739,7 +740,8 @@ config DEBUG_BUGVERBOSE
|
|||
bool "Verbose BUG() reporting (adds 70K)" if DEBUG_KERNEL && EXPERT
|
||||
depends on BUG
|
||||
depends on ARM || AVR32 || M32R || M68K || SPARC32 || SPARC64 || \
|
||||
FRV || SUPERH || GENERIC_BUG || BLACKFIN || MN10300 || TILE
|
||||
FRV || SUPERH || GENERIC_BUG || BLACKFIN || MN10300 || \
|
||||
TILE || ARM64
|
||||
default y
|
||||
help
|
||||
Say Y here to make BUG() panics output the file name and line number
|
||||
|
|
|
|||
Reference in New Issue