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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
# GCC 2.7 uses different options to later compilers; sort out which we have
CONFIG_GCC_NEW := $(shell if $(CC) --version 2>&1 | grep '^2\.7' > /dev/null; then echo n; else echo y; fi)
# See if this is ld "2.9.4" or later
NEW_LINKER := $(shell if $(LD) --gc-sections --version >/dev/null 2>&1; then echo y; else echo n; fi)
# CFLAGS_PROC - processor dependent CFLAGS
# PROCESSOR - processor type
# TEXTADDR - Uncompressed kernel link text address
# ZTEXTADDR - Compressed kernel link text address
# ZRELADDR - Compressed kernel relocating address
# (point at which uncompressed kernel is loaded).
#
# select flags depending on the compiler
#
ifeq ($(CONFIG_GCC_NEW),y)
CFLAGS_PROC := -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 :=
CFLAGS_PROC_CPU_26 := -m3
CFLAGS_PROC_CPU_32v3 :=
CFLAGS_PROC_CPU_32v4 :=
CFLAGS_ARM6 := -m6
CFLAGS_ARM7 := -m6
CFLAGS_SA110 := -m6
endif
ifeq ($(NEW_LINKER),y)
ASFLAGS_PROC := -mno-fpu
ASFLAGS_PROC_CPU_26 := -mapcs-26
ASFLAGS_PROC_CPU_32v3 := -mapcs-32 -marmv3m
ASFLAGS_PROC_CPU_32v4 := -mapcs-32 -marmv4t
LINKFLAGS := -p
else
ASFLAGS_PROC :=
ASFLAGS_PROC_CPU_26 := -m3
ASFLAGS_PROC_CPU_32v3 := -m6
ASFLAGS_PROC_CPU_32v4 := -m6
LINKFLAGS :=
endif
ifeq ($(CONFIG_CPU_26),y)
PROCESSOR = armo
TEXTADDR = 0x02080000
ZTEXTADDR = 0x01800000
ZRELADDR = 0x02080000
CFLAGS_PROC += $(CFLAGS_PROC_CPU_26)
ASFLAGS_PROC += $(ASFLAGS_PROC_CPU_26)
endif
ifeq ($(CONFIG_CPU_32),y)
PROCESSOR = armv
TEXTADDR = 0xC0008000
ifeq ($(CONFIG_CPU_32v4),y)
CFLAGS_PROC += $(CFLAGS_PROC_CPU_32v4)
ASFLAGS_PROC += $(ASFLAGS_PROC_CPU_32v4)
else
CFLAGS_PROC += $(CFLAGS_PROC_CPU_32v3)
ASFLAGS_PROC += $(ASFLAGS_PROC_CPU_32v3)
endif
#
# Exactly one of the following must be selected
#
ifeq ($(CONFIG_CPU_ARM6),y)
CFLAGS_PROC += $(CFLAGS_ARM6)
else
ifeq ($(CONFIG_CPU_ARM7),y)
CFLAGS_PROC += $(CFLAGS_ARM7)
else
ifeq ($(CONFIG_CPU_SA110),y)
CFLAGS_PROC += $(CFLAGS_SA110)
endif
endif
endif
endif
COMPRESSED_HEAD = head.o
ifeq ($(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
ZTEXTADDR = 0x10008000
ZRELADDR = 0x10008000
endif
ifeq ($(CONFIG_ARCH_EBSA110),y)
MACHINE = ebsa110
ARCHDIR = ebsa110
ZTEXTADDR = 0x00008000
ZRELADDR = 0x00008000
endif
ifeq ($(CONFIG_FOOTBRIDGE),y)
MACHINE = footbridge
ARCHDIR = ebsa285
ZTEXTADDR = 0x00008000
ZRELADDR = 0x00008000
endif
ifeq ($(CONFIG_ARCH_CO285),y)
TEXTADDR = 0x60008000
endif
ifeq ($(CONFIG_ARCH_NEXUSPCI),y)
MACHINE = nexuspci
ARCHDIR = nexuspci
ZTEXTADDR = 0x40200000
ZRELADDR = 0x40008000
COMPRESSED_EXTRA = $(TOPDIR)/arch/arm/lib/ll_char_wr_scc.o
COMPRESSED_HEAD = head-nexuspci.o
endif
PERL = perl
LD = $(CROSS_COMPILE)ld
OBJCOPY = $(CROSS_COMPILE)objcopy -O binary -R .note -R .comment -S
OBJDUMP = $(CROSS_COMPILE)objdump
CPP = $(CC) -E
ARCHCC := $(word 1,$(CC))
GCCLIB := `$(CC) $(CFLAGS_PROC) --print-libgcc-file-name`
HOSTCFLAGS := $(CFLAGS:-fomit-frame-pointer=)
ifeq ($(CONFIG_FRAME_POINTER),y)
CFLAGS := $(CFLAGS:-fomit-frame-pointer=)
endif
CFLAGS := $(CFLAGS_PROC) $(CFLAGS) -pipe
ASFLAGS := $(ASFLAGS_PROC) $(ASFLAGS)
LINKFLAGS += -X -T $(TOPDIR)/arch/arm/vmlinux-$(PROCESSOR).lds -e stext
ZLINKFLAGS = -Ttext $(ZTEXTADDR)
# If we're intending to debug the kernel, make sure it has line number
# information. This gets stripped out when building (z)Image so it doesn't
# add anything to the footprint of the running kernel.
ifeq ($(CONFIG_DEBUG_INFO),y)
CFLAGS += -g
endif
HEAD := arch/arm/kernel/head-$(PROCESSOR).o \
arch/arm/kernel/init_task.o
SUBDIRS := arch/arm/special $(SUBDIRS) arch/arm/lib arch/arm/kernel \
arch/arm/mm 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_ARCH_ACORN),y)
SUBDIRS += drivers/acorn/block drivers/acorn/char drivers/acorn/net \
drivers/acorn/scsi
DRIVERS += drivers/acorn/block/acorn-block.a \
drivers/acorn/char/acorn-char.a \
drivers/acorn/net/acorn-net.a \
drivers/acorn/scsi/acorn-scsi.a
endif
ifeq ($(CONFIG_NWFPE),y)
DRIVERS += arch/arm/nwfpe/math-emu.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: 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-$(PROCESSOR) proc)
# We need to rebuild the linker script
# each time, in case the architecture has
# changed.
.PHONY: arch/arm/vmlinux-$(PROCESSOR).lds
vmlinux: arch/arm/vmlinux-$(PROCESSOR).lds
arch/arm/vmlinux-$(PROCESSOR).lds: $(TOPDIR)/arch/arm/vmlinux-$(PROCESSOR).lds.in
@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) $@
# Once we've finished integrating the sources, the @$(MAKE) will disappear
archmrproper:
rm -f include/asm-arm/arch include/asm-arm/proc
@$(MAKE) -C arch/$(ARCH)/special mrproper
rm -f $(TOPDIR)/arch/arm/vmlinux-*.lds
archclean:
@$(MAKEBOOT) clean
$(RM) arch/arm/lib/constants.h
archdep:
@$(MAKEBOOT) dep
# My testing targets (that short circuit a few dependencies)
zImg:; @$(MAKEBOOT) zImage
Img:; @$(MAKEBOOT) Image
i:; @$(MAKEBOOT) install
zi:; @$(MAKEBOOT) zinstall
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
|
