OpenRISC: Build infrastructure
Signed-off-by: Jonas Bonn <jonas@southpole.se> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Jonas Bonn
parent
ac689eb7f9
commit
f8c4a270d9
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#
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# For a description of the syntax of this configuration file,
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# see Documentation/kbuild/config-language.txt.
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#
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config OPENRISC
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def_bool y
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select OF
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select OF_EARLY_FLATTREE
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select HAVE_MEMBLOCK
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select ARCH_WANT_OPTIONAL_GPIOLIB
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select HAVE_ARCH_TRACEHOOK
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select HAVE_GENERIC_HARDIRQS
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select GENERIC_IRQ_CHIP
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select GENERIC_IRQ_PROBE
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select GENERIC_IRQ_SHOW
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select GENERIC_IOMAP
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config MMU
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def_bool y
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config WISHBONE_BUS_BIG_ENDIAN
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def_bool y
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config SYMBOL_PREFIX
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string
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default ""
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config HAVE_DMA_ATTRS
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def_bool y
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config UID16
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def_bool y
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config RWSEM_GENERIC_SPINLOCK
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def_bool y
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config RWSEM_XCHGADD_ALGORITHM
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def_bool n
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config GENERIC_HWEIGHT
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def_bool y
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config GENERIC_IOMAP
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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 GENERIC_GPIO
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def_bool y
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config GENERIC_CLOCKEVENTS
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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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# For now, use generic checksum functions
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#These can be reimplemented in assembly later if so inclined
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config GENERIC_CSUM
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def_bool y
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config GENERIC_FIND_NEXT_BIT
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def_bool y
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source "init/Kconfig"
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menu "Processor type and features"
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choice
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prompt "Subarchitecture"
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default OR1K_1200
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config OR1K_1200
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bool "OR1200"
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help
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Generic OpenRISC 1200 architecture
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endchoice
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config OPENRISC_BUILTIN_DTB
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string "Builtin DTB"
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default ""
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menu "Class II Instructions"
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config OPENRISC_HAVE_INST_FF1
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bool "Have instruction l.ff1"
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default y
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help
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Select this if your implementation has the Class II instruction l.ff1
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config OPENRISC_HAVE_INST_FL1
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bool "Have instruction l.fl1"
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default y
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help
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Select this if your implementation has the Class II instruction l.fl1
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config OPENRISC_HAVE_INST_MUL
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bool "Have instruction l.mul for hardware multiply"
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default y
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help
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Select this if your implementation has a hardware multiply instruction
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config OPENRISC_HAVE_INST_DIV
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bool "Have instruction l.div for hardware divide"
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default y
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help
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Select this if your implementation has a hardware divide instruction
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endmenu
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source "kernel/time/Kconfig"
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source kernel/Kconfig.hz
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source kernel/Kconfig.preempt
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source "mm/Kconfig"
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config OPENRISC_NO_SPR_SR_DSX
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bool "use SPR_SR_DSX software emulation" if OR1K_1200
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default y
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help
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SPR_SR_DSX bit is status register bit indicating whether
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the last exception has happened in delay slot.
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OpenRISC architecture makes it optional to have it implemented
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in hardware and the OR1200 does not have it.
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Say N here if you know that your OpenRISC processor has
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SPR_SR_DSX bit implemented. Say Y if you are unsure.
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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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On some architectures there is currently no way for the boot loader
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to pass arguments to the kernel. For these architectures, you should
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supply some command-line options at build time by entering them
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here.
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menu "Debugging options"
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config DEBUG_STACKOVERFLOW
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bool "Check for kernel stack overflow"
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default y
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help
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Make extra checks for space avaliable on stack in some
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critical functions. This will cause kernel to run a bit slower,
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but will catch most of kernel stack overruns and exit gracefuly.
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Say Y if you are unsure.
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config JUMP_UPON_UNHANDLED_EXCEPTION
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bool "Try to die gracefully"
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default y
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help
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Now this puts kernel into infinite loop after first oops. Till
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your kernel crashes this doesn't have any influence.
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Say Y if you are unsure.
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config OPENRISC_EXCEPTION_DEBUG
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bool "Print processor state at each exception"
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default n
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help
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This option will make your kernel unusable for all but kernel
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debugging.
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Say N if you are unsure.
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config OPENRISC_ESR_EXCEPTION_BUG_CHECK
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bool "Check for possible ESR exception bug"
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default n
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help
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This option enables some checks that might expose some problems
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in kernel.
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Say N if you are unsure.
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endmenu
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endmenu
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menu "Executable file formats"
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source "fs/Kconfig.binfmt"
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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 "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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endmenu
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@ -0,0 +1,55 @@
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# BK Id: %F% %I% %G% %U% %#%
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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. Remember to do have actions
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# for "archclean" and "archdep" for cleaning up and making dependencies for
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# this architecture
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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) 1994 by Linus Torvalds
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# Modifications for the OpenRISC architecture:
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# Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
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# Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
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#
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# Based on:
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# arch/i386/Makefile
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KBUILD_DEFCONFIG := or1ksim_defconfig
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LDFLAGS :=
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OBJCOPYFLAGS := -O binary -R .note -R .comment -S
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LDFLAGS_vmlinux :=
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LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
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KBUILD_CFLAGS += -pipe -ffixed-r10
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ifeq ($(CONFIG_OPENRISC_HAVE_INST_MUL),y)
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KBUILD_CFLAGS += $(call cc-option,-mhard-mul)
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else
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KBUILD_CFLAGS += $(call cc-option,-msoft-mul)
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endif
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ifeq ($(CONFIG_OPENRISC_HAVE_INST_DIV),y)
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KBUILD_CFLAGS += $(call cc-option,-mhard-div)
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else
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KBUILD_CFLAGS += $(call cc-option,-msoft-div)
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endif
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head-y := arch/openrisc/kernel/head.o arch/openrisc/kernel/init_task.o
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core-y += arch/openrisc/lib/ \
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arch/openrisc/kernel/ \
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arch/openrisc/mm/
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libs-y += $(LIBGCC)
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ifneq '$(CONFIG_OPENRISC_BUILTIN_DTB)' '""'
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BUILTIN_DTB := y
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else
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BUILTIN_DTB := n
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endif
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core-$(BUILTIN_DTB) += arch/openrisc/boot/
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all: vmlinux
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@ -0,0 +1,15 @@
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ifneq '$(CONFIG_OPENRISC_BUILTIN_DTB)' '""'
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BUILTIN_DTB := $(patsubst "%",%,$(CONFIG_OPENRISC_BUILTIN_DTB)).dtb.o
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else
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BUILTIN_DTB :=
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endif
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obj-y += $(BUILTIN_DTB)
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clean-files := *.dtb.S
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#DTC_FLAGS ?= -p 1024
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$(obj)/%.dtb: $(src)/dts/%.dts
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$(call cmd,dtc)
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@ -0,0 +1,65 @@
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CONFIG_CROSS_COMPILE="or32-linux-"
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CONFIG_LOG_BUF_SHIFT=14
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CONFIG_BLK_DEV_INITRD=y
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# CONFIG_RD_GZIP is not set
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CONFIG_EXPERT=y
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# CONFIG_SYSCTL_SYSCALL is not set
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# CONFIG_KALLSYMS is not set
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# CONFIG_EPOLL is not set
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# CONFIG_TIMERFD is not set
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# CONFIG_EVENTFD is not set
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# CONFIG_AIO is not set
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# CONFIG_VM_EVENT_COUNTERS is not set
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# CONFIG_COMPAT_BRK is not set
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CONFIG_SLOB=y
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CONFIG_MODULES=y
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# CONFIG_BLOCK is not set
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CONFIG_OPENRISC_BUILTIN_DTB="or1ksim"
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CONFIG_NO_HZ=y
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CONFIG_HZ_100=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_INET_XFRM_MODE_TRANSPORT is not set
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# CONFIG_INET_XFRM_MODE_TUNNEL is not set
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# CONFIG_INET_XFRM_MODE_BEET is not set
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# CONFIG_INET_LRO is not set
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# CONFIG_INET_DIAG is not set
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CONFIG_TCP_CONG_ADVANCED=y
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# CONFIG_TCP_CONG_BIC is not set
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# CONFIG_TCP_CONG_CUBIC is not set
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# CONFIG_TCP_CONG_WESTWOOD is not set
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# CONFIG_TCP_CONG_HTCP 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_DEVTMPFS=y
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CONFIG_DEVTMPFS_MOUNT=y
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# CONFIG_PREVENT_FIRMWARE_BUILD is not set
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# CONFIG_FW_LOADER is not set
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CONFIG_PROC_DEVICETREE=y
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CONFIG_NETDEVICES=y
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CONFIG_MICREL_PHY=y
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CONFIG_NET_ETHERNET=y
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CONFIG_ETHOC=y
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# CONFIG_NETDEV_1000 is not set
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# CONFIG_NETDEV_10000 is not set
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# CONFIG_WLAN is not set
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# CONFIG_INPUT is not set
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# CONFIG_SERIO is not set
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# CONFIG_VT is not set
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# CONFIG_LEGACY_PTYS is not set
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# CONFIG_DEVKMEM is not set
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CONFIG_SERIAL_8250=y
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CONFIG_SERIAL_8250_CONSOLE=y
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CONFIG_SERIAL_OF_PLATFORM=y
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# CONFIG_HW_RANDOM is not set
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# CONFIG_HWMON is not set
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# CONFIG_MFD_SUPPORT is not set
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# CONFIG_USB_SUPPORT is not set
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# CONFIG_DNOTIFY is not set
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CONFIG_TMPFS=y
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CONFIG_NFS_FS=y
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CONFIG_NFS_V3=y
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# CONFIG_ENABLE_WARN_DEPRECATED is not set
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# CONFIG_ENABLE_MUST_CHECK is not set
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@ -0,0 +1,64 @@
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include include/asm-generic/Kbuild.asm
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header-y += spr_defs.h
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generic-y += atomic.h
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generic-y += auxvec.h
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generic-y += bitsperlong.h
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generic-y += bug.h
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generic-y += bugs.h
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generic-y += cacheflush.h
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generic-y += checksum.h
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generic-y += cmpxchg.h
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generic-y += cmpxchg-local.h
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generic-y += cpumask.h
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generic-y += cputime.h
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generic-y += current.h
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generic-y += device.h
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generic-y += div64.h
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generic-y += dma.h
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generic-y += emergency-restart.h
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generic-y += errno.h
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generic-y += fb.h
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generic-y += fcntl.h
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generic-y += ftrace.h
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generic-y += futex.h
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generic-y += hardirq.h
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generic-y += hw_irq.h
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generic-y += ioctl.h
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generic-y += ioctls.h
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generic-y += ipcbuf.h
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generic-y += irq_regs.h
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generic-y += kdebug.h
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generic-y += kmap_types.h
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generic-y += local.h
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generic-y += mman.h
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generic-y += module.h
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generic-y += msgbuf.h
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generic-y += pci.h
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generic-y += percpu.h
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generic-y += poll.h
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generic-y += posix_types.h
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generic-y += resource.h
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generic-y += rmap.h
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generic-y += scatterlist.h
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generic-y += sections.h
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generic-y += segment.h
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generic-y += sembuf.h
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generic-y += setup.h
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generic-y += shmbuf.h
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generic-y += shmparam.h
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generic-y += siginfo.h
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generic-y += signal.h
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generic-y += socket.h
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generic-y += sockios.h
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generic-y += statfs.h
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generic-y += stat.h
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generic-y += string.h
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generic-y += swab.h
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generic-y += termbits.h
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generic-y += termios.h
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generic-y += topology.h
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generic-y += types.h
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generic-y += ucontext.h
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generic-y += user.h
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@ -0,0 +1,14 @@
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#
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# Makefile for the linux kernel.
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#
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extra-y := head.o vmlinux.lds init_task.o
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obj-y := setup.o idle.o or32_ksyms.o process.o dma.o \
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traps.o time.o irq.o entry.o ptrace.o signal.o sys_or32.o \
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sys_call_table.o
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obj-$(CONFIG_MODULES) += module.o
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obj-$(CONFIG_OF) += prom.o
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clean:
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@ -0,0 +1,115 @@
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/*
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* OpenRISC vmlinux.lds.S
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*
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* Linux architectural port borrowing liberally from similar works of
|
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* others. All original copyrights apply as per the original source
|
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* declaration.
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*
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* Modifications for the OpenRISC architecture:
|
||||
* Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
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* Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
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||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version
|
||||
* 2 of the License, or (at your option) any later version.
|
||||
*
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||||
* ld script for OpenRISC architecture
|
||||
*/
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||||
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||||
/* TODO
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||||
* - clean up __offset & stuff
|
||||
* - change all 8192 aligment to PAGE !!!
|
||||
* - recheck if all aligments are really needed
|
||||
*/
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||||
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||||
# define LOAD_OFFSET PAGE_OFFSET
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# define LOAD_BASE PAGE_OFFSET
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#include <asm/page.h>
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#include <asm/cache.h>
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||||
#include <asm-generic/vmlinux.lds.h>
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||||
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||||
OUTPUT_FORMAT("elf32-or32", "elf32-or32", "elf32-or32")
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jiffies = jiffies_64 + 4;
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||||
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||||
SECTIONS
|
||||
{
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||||
/* Read-only sections, merged into text segment: */
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||||
. = LOAD_BASE ;
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||||
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||||
/* _s_kernel_ro must be page aligned */
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||||
. = ALIGN(PAGE_SIZE);
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||||
_s_kernel_ro = .;
|
||||
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||||
.text : AT(ADDR(.text) - LOAD_OFFSET)
|
||||
{
|
||||
_stext = .;
|
||||
TEXT_TEXT
|
||||
SCHED_TEXT
|
||||
LOCK_TEXT
|
||||
KPROBES_TEXT
|
||||
IRQENTRY_TEXT
|
||||
*(.fixup)
|
||||
*(.text.__*)
|
||||
_etext = .;
|
||||
}
|
||||
/* TODO: Check if fixup and text.__* are really necessary
|
||||
* fixup is definitely necessary
|
||||
*/
|
||||
|
||||
_sdata = .;
|
||||
|
||||
/* Page alignment required for RO_DATA_SECTION */
|
||||
RO_DATA_SECTION(PAGE_SIZE)
|
||||
_e_kernel_ro = .;
|
||||
|
||||
/* Whatever comes after _e_kernel_ro had better be page-aligend, too */
|
||||
|
||||
/* 32 here is cacheline size... recheck this */
|
||||
RW_DATA_SECTION(32, PAGE_SIZE, PAGE_SIZE)
|
||||
|
||||
_edata = .;
|
||||
|
||||
EXCEPTION_TABLE(4)
|
||||
NOTES
|
||||
|
||||
/* Init code and data */
|
||||
. = ALIGN(PAGE_SIZE);
|
||||
__init_begin = .;
|
||||
|
||||
HEAD_TEXT_SECTION
|
||||
|
||||
/* Page aligned */
|
||||
INIT_TEXT_SECTION(PAGE_SIZE)
|
||||
|
||||
/* Align __setup_start on 16 byte boundary */
|
||||
INIT_DATA_SECTION(16)
|
||||
|
||||
PERCPU_SECTION(L1_CACHE_BYTES)
|
||||
|
||||
__init_end = .;
|
||||
|
||||
. = ALIGN(PAGE_SIZE);
|
||||
.initrd : AT(ADDR(.initrd) - LOAD_OFFSET)
|
||||
{
|
||||
__initrd_start = .;
|
||||
*(.initrd)
|
||||
__initrd_end = .;
|
||||
FILL (0);
|
||||
. = ALIGN (PAGE_SIZE);
|
||||
}
|
||||
|
||||
__vmlinux_end = .; /* last address of the physical file */
|
||||
|
||||
BSS_SECTION(0, 0, 0x20)
|
||||
|
||||
_end = .;
|
||||
|
||||
/* Throw in the debugging sections */
|
||||
STABS_DEBUG
|
||||
DWARF_DEBUG
|
||||
|
||||
/* Sections to be discarded -- must be last */
|
||||
DISCARDS
|
||||
}
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
#
|
||||
# Makefile for or32 specific library files..
|
||||
#
|
||||
|
||||
obj-y = string.o delay.o
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
#
|
||||
# Makefile for the linux openrisc-specific parts of the memory manager.
|
||||
#
|
||||
|
||||
obj-y := fault.o tlb.o init.o ioremap.o
|
||||
Reference in New Issue