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_LINUX_CUSTOM) := custom 18 19VARIANT = $(variant-y) 20export VARIANT 21 22# Platform configuration 23 24platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000 25platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss 26 27PLATFORM = $(platform-y) 28export PLATFORM 29 30# temporarily until string.h is fixed 31KBUILD_CFLAGS += -ffreestanding 32 33KBUILD_CFLAGS += -pipe -mlongcalls 34 35KBUILD_DEFCONFIG := iss_defconfig 36 37# ramdisk/initrd support 38# You need a compressed ramdisk image, named ramdisk.gz in 39# arch/xtensa/boot/ramdisk 40 41core-$(CONFIG_EMBEDDED_RAMDISK) += arch/xtensa/boot/ramdisk/ 42 43# Test for cross compiling 44 45ifneq ($(VARIANT),) 46 COMPILE_ARCH = $(shell uname -m) 47 48 ifneq ($(COMPILE_ARCH), xtensa) 49 ifndef CROSS_COMPILE 50 CROSS_COMPILE = xtensa_$(VARIANT)- 51 endif 52 endif 53endif 54 55# 56 57LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) 58 59head-y := arch/xtensa/kernel/head.o 60core-y += arch/xtensa/kernel/ arch/xtensa/mm/ 61ifneq ($(PLATFORM),) 62core-y += arch/xtensa/platforms/$(PLATFORM)/ 63endif 64libs-y += arch/xtensa/lib/ $(LIBGCC) 65 66boot := arch/xtensa/boot 67 68archinc := include/asm-xtensa 69 70archprepare: $(archinc)/.platform 71 72# Update processor variant and platform symlinks if something which affects 73# them changed. 74 75$(archinc)/.platform: $(wildcard include/config/arch/*.h) include/config/auto.conf 76 @echo ' SYMLINK $(archinc)/variant -> $(archinc)/variant-$(VARIANT)' 77 $(Q)mkdir -p $(archinc) 78 $(Q)ln -fsn $(srctree)/$(archinc)/variant-$(VARIANT) $(archinc)/variant 79 @echo ' SYMLINK $(archinc)/platform -> $(archinc)/platform-$(PLATFORM)' 80 $(Q)ln -fsn $(srctree)/$(archinc)/platform-$(PLATFORM) $(archinc)/platform 81 @touch $@ 82 83 84all: zImage 85 86bzImage : zImage 87 88zImage zImage.initrd: vmlinux 89 $(Q)$(MAKE) $(build)=$(boot) $@ 90 91CLEAN_FILES += arch/xtensa/vmlinux.lds \ 92 $(archinc)/platform $(archinc)/variant \ 93 $(archinc)/.platform 94 95define archhelp 96 @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)' 97endef 98 99