1# 2# This file is subject to the terms and conditions of the GNU General Public 3# License. See the file "COPYING" in the main directory of this archive 4# for more details. 5# 6# Copyright (C) 2001 - 2005 Tensilica Inc. 7# 8# This file is included by the global makefile so that you can add your own 9# architecture-specific flags and dependencies. Remember to do have actions 10# for "archclean" and "archdep" for cleaning up and making dependencies for 11# this architecture 12 13# Core configuration. 14# (Use VAR=<xtensa_config> to use another default compiler.) 15 16variant-$(CONFIG_XTENSA_VARIANT_FSF) := fsf 17variant-$(CONFIG_XTENSA_VARIANT_DC232B) := dc232b 18variant-$(CONFIG_XTENSA_VARIANT_S6000) := s6000 19variant-$(CONFIG_XTENSA_VARIANT_LINUX_CUSTOM) := custom 20 21VARIANT = $(variant-y) 22export VARIANT 23 24# Test for cross compiling 25 26ifneq ($(VARIANT),) 27 COMPILE_ARCH = $(shell uname -m) 28 29 ifneq ($(COMPILE_ARCH), xtensa) 30 ifndef CROSS_COMPILE 31 CROSS_COMPILE = xtensa_$(VARIANT)- 32 endif 33 endif 34endif 35 36# Platform configuration 37 38platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000 39platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss 40platform-$(CONFIG_XTENSA_PLATFORM_S6105) := s6105 41 42PLATFORM = $(platform-y) 43export PLATFORM 44 45# temporarily until string.h is fixed 46KBUILD_CFLAGS += -ffreestanding -D__linux__ 47 48KBUILD_CFLAGS += -pipe -mlongcalls 49 50KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,) 51 52vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y)) 53plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y)) 54 55ifeq ($(KBUILD_SRC),) 56KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs)) 57else 58KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs)) 59endif 60 61KBUILD_DEFCONFIG := iss_defconfig 62 63# Only build variant and/or platform if it includes a Makefile 64 65buildvar := $(shell test -e $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/) 66buildplf := $(shell test -e $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/) 67 68# Find libgcc.a 69 70LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) 71 72head-y := arch/xtensa/kernel/head.o 73core-y += arch/xtensa/kernel/ arch/xtensa/mm/ 74core-y += $(buildvar) $(buildplf) 75 76libs-y += arch/xtensa/lib/ $(LIBGCC) 77 78boot := arch/xtensa/boot 79 80all: zImage 81 82bzImage : zImage 83 84zImage: vmlinux 85 $(Q)$(MAKE) $(build)=$(boot) $@ 86 87define archhelp 88 @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)' 89endef 90 91