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 = $(variant-y) 22export VARIANT 23 24# Platform configuration 25 26platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000 27platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss 28platform-$(CONFIG_XTENSA_PLATFORM_S6105) := s6105 29 30PLATFORM = $(platform-y) 31export PLATFORM 32 33# temporarily until string.h is fixed 34KBUILD_CFLAGS += -ffreestanding 35 36KBUILD_CFLAGS += -pipe -mlongcalls 37 38vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y)) 39plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y)) 40 41ifeq ($(KBUILD_SRC),) 42KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs)) 43else 44KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs)) 45endif 46 47KBUILD_DEFCONFIG := iss_defconfig 48 49# ramdisk/initrd support 50# You need a compressed ramdisk image, named ramdisk.gz in 51# arch/xtensa/boot/ramdisk 52 53core-$(CONFIG_EMBEDDED_RAMDISK) += arch/xtensa/boot/ramdisk/ 54 55# Test for cross compiling 56 57ifneq ($(VARIANT),) 58 COMPILE_ARCH = $(shell uname -m) 59 60 ifneq ($(COMPILE_ARCH), xtensa) 61 ifndef CROSS_COMPILE 62 CROSS_COMPILE = xtensa_$(VARIANT)- 63 endif 64 endif 65endif 66 67# Only build variant and/or platform if it includes a Makefile 68 69buildvar := $(shell test -a $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/) 70buildplf := $(shell test -a $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/) 71 72# Find libgcc.a 73 74LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) 75 76head-y := arch/xtensa/kernel/head.o 77core-y += arch/xtensa/kernel/ arch/xtensa/mm/ 78core-y += $(buildvar) $(buildplf) 79 80libs-y += arch/xtensa/lib/ $(LIBGCC) 81 82boot := arch/xtensa/boot 83 84all: zImage 85 86bzImage : zImage 87 88zImage zImage.initrd: vmlinux 89 $(Q)$(MAKE) $(build)=$(boot) $@ 90 91define archhelp 92 @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)' 93endef 94 95