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#
# 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) 1994, 95, 96, 2003 by Ralf Baechle
# DECStation modifications by Paul M. Antoine, 1996
# Copyright (C) 2002, 2003, 2004 Maciej W. Rozycki
#
# 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" cleaning up for this architecture.
#
#
# Select the object file format to substitute into the linker script.
#
ifdef CONFIG_CPU_LITTLE_ENDIAN
32bit-bfd = elf32-tradlittlemips
32bit-emul = elf32ltsmip
else
32bit-bfd = elf32-tradbigmips
32bit-emul = elf32btsmip
endif
CROSS_COMPILE := rsdk-linux-
UTS_MACHINE := rlx
ld-emul = $(32bit-emul)
vmlinux-32 = vmlinux
cflags-y := -ffunction-sections
cflags-y += $(call cc-option, -mno-check-zero-division)
cflags-y += -mabi=32
cflags-$(CONFIG_ARCH_CPU_RLX4181) += -march=rlx4181
cflags-$(CONFIG_ARCH_CPU_RLX5281) += -march=rlx5281
#
# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
# code since it only slows down the whole thing. At some point we might make
# use of global pointer optimizations but their use of $28 conflicts with
# the current pointer optimization.
#
cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
cflags-y += -msoft-float
LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
MODFLAGS += -mlong-calls
cflags-y += -ffreestanding
#
# We explicitly add the endianness specifier if needed, this allows
# to compile kernels with a toolchain for the other endianness. We
# carefully avoid to add it redundantly because gcc 3.3/3.4 complains
# when fed the toolchain default!
#
# Certain gcc versions upto gcc 4.1.1 (probably 4.2-subversion as of
# 2006-10-10 don't properly change the predefined symbols if -EB / -EL
# are used, so we kludge that here. A bug has been filed at
# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413.
#
undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__
undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__
predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__
predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__
cflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB $(undef-all) $(predef-be)
cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL $(undef-all) $(predef-le)
#
# BSP Makefile
#
include $(TOPDIR)/.config
include arch/rlx/Makefile.bsp
#include arch/rlx/bsp/Makefile
core-y += arch/rlx/bsp/
cflags-y += -Iinclude/asm-rlx -Iarch/rlx/bsp/ -Iarch/rlx
load-y += 0x80000000
obj-y := prom.o setup.o irq.o timer.o serial.o dev_usb.o
obj-$(CONFIG_PCI) += pci.o
EXTRA_AFLAGS := $(CFLAGS)
EXTRA_CFLAGS += -I$(TOPDIR)/drivers/net/rtl819x/AsicDriver
EXTRA_CFLAGS += -I$(TOPDIR)/drivers/net/rtl819x/common
ifdef CONFIG_RTL_819X_SWCORE
EXTRA_CFLAGS += -DCONFIG_RTL_819X_SWCORE
endif
cflags-y += -I$(srctree)/arch/rlx/include/asm/mach-generic
drivers-$(CONFIG_PCI) += arch/rlx/pci/
ifdef CONFIG_CPU_LITTLE_ENDIAN
JIFFIES = jiffies_64
else
JIFFIES = jiffies_64 + 4
endif
#
# Automatically detect the build format. By default we choose
# the elf format according to the load address.
# We can always force a build with a 64-bits symbol format by
# passing 'KBUILD_SYM32=no' option to the make's command line.
#
KBUILD_AFLAGS += $(cflags-y)
KBUILD_CFLAGS += $(cflags-y) \
-D"VMLINUX_LOAD_ADDRESS=$(load-y)"
LDFLAGS += -m $(ld-emul)
CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -xc /dev/null | \
egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \
sed -e 's/^\#define /-D/' -e "s/ /='/" -e "s/$$/'/")
OBJCOPYFLAGS += --remove-section=.reginfo
#
# Choosing incompatible machines durings configuration will result in
# error messages during linking. Select a default linkscript if
# none has been choosen above.
#
CPPFLAGS_vmlinux.lds := \
$(KBUILD_CFLAGS) \
-D"LOADADDR=$(load-y)" \
-D"JIFFIES=$(JIFFIES)" \
-D"DATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)" \
-D"ZZ_DRAMSIZE_ZZ=8k" \
-D"ZZ_IRAMSIZE_ZZ=8k" \
-D"ZZ_L2RAMSIZE_ZZ=32k"
head-y := arch/rlx/kernel/head.o arch/rlx/kernel/init_task.o
libs-y += arch/rlx/lib/ # Library support
#libs-y += arch/rlx/fw/lib/ # Firmware support
core-y += arch/rlx/kernel/ arch/rlx/mm/
drivers-$(CONFIG_OPROFILE) += arch/rlx/oprofile/
#
# Targets
#
vmlinux.32: vmlinux
$(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
makeboot =$(Q)$(MAKE) $(build)=arch/rlx/boot VMLINUX=$(vmlinux-32) $(1)
all: bsp vmlinux.32
vmlinux.bin: $(vmlinux-32)
+@$(call makeboot,$@)
archprepare:
#ifdef CONFIG_MIPS32_O32
# @echo ' Checking missing-syscalls for O32'
# $(Q)$(MAKE) $(build)=. missing-syscalls EXTRA_CFLAGS="-mabi=32"
#endif
install:
$(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
$(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
$(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
archclean:
@$(MAKE) $(clean)=arch/rlx/boot
define archhelp
echo ' install - install kernel into $(INSTALL_PATH)'
echo ' vmlinux.ecoff - ECOFF boot image'
echo ' vmlinux.bin - Raw binary boot image'
echo ' vmlinux.srec - SREC boot image'
echo
echo ' These will be default as apropriate for a configured platform.'
endef
CLEAN_FILES += vmlinux.32 vmlinux.bin
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