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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) 2001 - 2005 Tensilica Inc.
#
# 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
# Core configuration.
# (Use CPU=<xtensa_config> to use another default compiler.)
cpu-$(CONFIG_XTENSA_CPU_LINUX_BE) := linux_be
cpu-$(CONFIG_XTENSA_CPU_LINUX_CUSTOM) := linux_custom
CPU = $(cpu-y)
export CPU
# Platform configuration
platform-y := common
platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000
platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss
PLATFORM = $(platform-y)
export PLATFORM
#LDFLAGS_vmlinux := -T$(word 1,$(LINKSCRIPT))
AFLAGS_vmlinux.lds.o := -Uxtensa
CPPFLAGS += -Iarch/xtensa -Iinclude/asm -mlongcalls -g
AFLAGS += -Iarch/xtensa -Iinclude/asm
CPP = $(CC) -E $(CFLAGS)
cflags-y += -Iarch/xtensa -pipe -mlongcalls
KBUILD_DEFCONFIG := common_defconfig
# ramdisk/initrd support
# You need a compressed ramdisk image, named ramdisk.gz in
# arch/xtensa/boot/ramdisk
core-$(CONFIG_EMBEDDED_RAMDISK) += arch/xtensa/boot/ramdisk/
# Test for cross compiling
ifneq ($(CPU),)
COMPILE_ARCH = $(shell uname -m)
ifneq ($(COMPILE_ARCH), xtensa)
ifndef CROSS_COMPILE
CROSS_COMPILE = xtensa_$(CPU)-
endif
endif
endif
#
LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
head-y := arch/xtensa/kernel/head.o
core-y += arch/xtensa/kernel/ \
arch/xtensa/mm/ arch/xtensa/platform-$(PLATFORM)/
libs-y += arch/xtensa/lib/ $(LIBGCC)
boot := arch/xtensa/boot
arch/xtensa/kernel/asm-offsets.s: \
arch/xtensa/kernel/asm-offsets.c \
include/asm-xtensa/.platform
include/asm-xtensa/offsets.h: arch/xtensa/kernel/asm-offsets.s
$(call filechk,gen-asm-offsets)
prepare: include/asm-xtensa/.platform include/asm-xtensa/offsets.h
# Update machine cpu and platform symlinks if something which affects
# them changed.
include/asm-xtensa/.platform: $(wildcard include/config/arch/*.h)
@echo ' Setting up cpu ($(CPU)) and platform ($(PLATFORM)) symlinks'
$(Q)rm -f include/asm-xtensa/platform
$(Q)rm -f include/asm-xtensa/xtensa/config
$(Q)(cd include/asm-xtensa/; ln -sf platform-$(PLATFORM) platform)
$(Q)(cd include/asm-xtensa/xtensa; ln -sf config-$(CPU) config)
all: zImage
bzImage : zImage
zImage zImage.initrd: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $@
CLEAN_FILES += arch/xtensa/vmlinux.lds include/asm-xtensa/offset.h
define archhelp
@echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
endef
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