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|
#
# arch/arm/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" and "archdep" for cleaning up and making dependencies for
# this architecture
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1995-1999 by Russell King
LD := $(CROSS_COMPILE)ld
OBJCOPY := $(CROSS_COMPILE)objcopy -O binary -R .note -R .comment -S
CPP := $(CC) -E
PERL := perl
LINKFLAGS := -p -X -T arch/arm/vmlinux.lds
ARCHCC := $(word 1,$(CC))
AFLAGS += -mno-fpu
CFLAGS_PIPE := -pipe
CFLAGS := $(CFLAGS) $(CFLAGS_PIPE)
ifdef CONFIG_FRAME_POINTER
CFLAGS := $(CFLAGS:-fomit-frame-pointer=)
endif
ifdef CONFIG_DEBUG_INFO
CFLAGS += -g
endif
# Ensure this is ld "2.9.4" or later
NEW_LINKER := $(shell if $(LD) --gc-sections --version >/dev/null 2>&1; then echo y; else echo n; fi)
ifneq ($(NEW_LINKER),y)
dummy:; @echo '*** 2.3 kernels no longer build correctly with old versions of binutils.'
@echo '*** Please upgrade your binutils to 2.9.5.'
@false
endif
# GCC 2.7 uses different options to later compilers; sort out which we have
NEW_GCC := $(shell if $(CC) --version 2>&1 | grep '^2\.7' > /dev/null; then echo n; else echo y; fi)
#
# select flags depending on the compiler
#
ifeq ($(NEW_GCC),y)
CFLAGS += -mshort-load-bytes -msoft-float
CFLAGS_PROC_CPU_26 := -mcpu=arm3 -Os
CFLAGS_PROC_CPU_32v3 := -march=armv3
CFLAGS_PROC_CPU_32v4 := -march=armv4
CFLAGS_ARM6 := -mtune=arm6
CFLAGS_ARM7 := -mtune=arm7
CFLAGS_SA110 := -mtune=strongarm110
else
CFLAGS_PROC_CPU_26 := -m3
CFLAGS_PROC_CPU_32v3 :=
CFLAGS_PROC_CPU_32v4 :=
CFLAGS_ARM6 := -m6
CFLAGS_ARM7 := -m6
CFLAGS_SA110 := -m6
endif
#
# Select CPU dependent flags
#
ifeq ($(CONFIG_CPU_26),y)
PROCESSOR = armo
TEXTADDR = 0x02080000
CFLAGS += $(CFLAGS_PROC_CPU_26)
AFLAGS += -mapcs-26
endif
ifeq ($(CONFIG_CPU_32),y)
PROCESSOR = armv
TEXTADDR = 0xC0008000
ifeq ($(CONFIG_CPU_32v4),y)
CFLAGS += $(CFLAGS_PROC_CPU_32v4)
AFLAGS += -mapcs-32 -marmv4
else
CFLAGS += $(CFLAGS_PROC_CPU_32v3)
AFLAGS += -mapcs-32 -marmv3m
endif
#
# Exactly one of the following must be selected
#
ifeq ($(CONFIG_CPU_ARM6),y)
CFLAGS += $(CFLAGS_ARM6)
else
ifeq ($(CONFIG_CPU_ARM7),y)
CFLAGS += $(CFLAGS_ARM7)
else
ifeq ($(CONFIG_CPU_SA110),y)
CFLAGS += $(CFLAGS_SA110)
endif
endif
endif
endif
GCCLIB := $(shell $(CC) $(CFLAGS) --print-libgcc-file-name)
ifeq ($(CONFIG_ARCH_A5K),y)
MACHINE = a5k
ARCHDIR = arc
endif
ifeq ($(CONFIG_ARCH_ARC),y)
MACHINE = arc
ARCHDIR = arc
endif
ifeq ($(CONFIG_ARCH_RPC),y)
MACHINE = rpc
ARCHDIR = rpc
endif
ifeq ($(CONFIG_ARCH_EBSA110),y)
MACHINE = ebsa110
ARCHDIR = ebsa110
endif
ifeq ($(CONFIG_FOOTBRIDGE),y)
MACHINE = footbridge
ARCHDIR = ebsa285
endif
ifeq ($(CONFIG_ARCH_CO285),y)
TEXTADDR = 0x60008000
endif
ifeq ($(CONFIG_ARCH_NEXUSPCI),y)
MACHINE = nexuspci
ARCHDIR = nexuspci
endif
ifeq ($(CONFIG_ARCH_SA1100),u)
MACHINE = sa1100
ARCHDIR = sa1100
endif
HEAD := arch/arm/kernel/head-$(PROCESSOR).o \
arch/arm/kernel/init_task.o
SUBDIRS += arch/arm/kernel arch/arm/mm arch/arm/lib \
arch/arm/special arch/arm/nwfpe
CORE_FILES := arch/arm/kernel/kernel.o arch/arm/mm/mm.o $(CORE_FILES)
LIBS := arch/arm/lib/lib.a $(LIBS) $(GCCLIB)
DRIVERS += arch/arm/special/special.a
ifeq ($(CONFIG_NWFPE),y)
LIBS := arch/arm/nwfpe/math-emu.o $(LIBS)
endif
ifeq ($(CONFIG_ARCH_ACORN),y)
SUBDIRS += drivers/acorn
DRIVERS += drivers/acorn/block/acorn-block.a
DRIVERS += drivers/acorn/char/acorn-char.a
DRIVERS += drivers/acorn/net/acorn-net.a
DRIVERS += drivers/acorn/scsi/acorn-scsi.a
endif
MAKEBOOT = $(MAKE) -C arch/$(ARCH)/boot
# The following is a hack to get 'constants.h' up
# to date before starting compilation
CONSTANTS := constants
constants: $(TOPDIR)/include/asm-arm/proc-fns.h dummy
@$(MAKE) -C arch/arm/lib constants.h
symlinks: archsymlinks
archsymlinks:
$(RM) include/asm-arm/arch include/asm-arm/proc
(cd include/asm-arm; ln -sf arch-$(ARCHDIR) arch; ln -sf proc-$(PROCESSOR) proc)
vmlinux: arch/arm/vmlinux.lds
arch/arm/vmlinux.lds: arch/arm/vmlinux-$(PROCESSOR).lds.in dummy
@sed 's/TEXTADDR/$(TEXTADDR)/' <$< >$@
arch/arm/kernel: dummy
$(MAKE) linuxsubdirs SUBDIRS=arch/arm/kernel
arch/arm/mm: dummy
$(MAKE) linuxsubdirs SUBDIRS=arch/arm/mm
arch/arm/lib: dummy
$(MAKE) linuxsubdirs SUBDIRS=arch/arm/lib
zImage zinstall Image install: vmlinux
@$(MAKEBOOT) $@
archmrproper:
@$(MAKE) -C arch/$(ARCH)/special mrproper
$(RM) include/asm-arm/arch include/asm-arm/proc
archclean:
@$(MAKEBOOT) clean
$(RM) arch/arm/lib/constants.h arch/arm/vmlinux.lds
archdep:
@$(MAKEBOOT) dep
# My testing targets (that short circuit a few dependencies)
zImg:; @$(MAKEBOOT) zImage
Img:; @$(MAKEBOOT) Image
i:; @$(MAKEBOOT) install
zi:; @$(MAKEBOOT) zinstall
#
# Configuration targets. Use these to select a
# configuration for your architecture
#
a5k_config:
$(RM) arch/arm/defconfig
cp arch/arm/def-configs/a5k arch/arm/defconfig
ebsa110_config:
$(RM) arch/arm/defconfig
cp arch/arm/def-configs/ebsa110 arch/arm/defconfig
footbridge_config:
$(RM) arch/arm/defconfig
cp arch/arm/def-configs/footbridge arch/arm/defconfig
rpc_config:
$(RM) arch/arm/defconfig
cp arch/arm/def-configs/rpc arch/arm/defconfig
brutus_config:
$(RM) arch/arm/defconfig
cp arch/arm/def-configs/brutus arch/arm/defconfig
victor_config:
$(RM) arch/arm/defconfig
cp arch/arm/def-configs/victor arch/arm/defconfig
empeg_config:
$(RM) arch/arm/defconfig
cp arch/arm/def-configs/empeg arch/arm/defconfig
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