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-$(CONFIG_XTENSA_VARIANT_DC233C) := dc233c 19variant-$(CONFIG_XTENSA_VARIANT_S6000) := s6000 20variant-$(CONFIG_XTENSA_VARIANT_LINUX_CUSTOM) := custom 21 22VARIANT = $(variant-y) 23export VARIANT 24 25# Test for cross compiling 26 27ifneq ($(VARIANT),) 28 COMPILE_ARCH = $(shell uname -m) 29 30 ifneq ($(COMPILE_ARCH), xtensa) 31 ifndef CROSS_COMPILE 32 CROSS_COMPILE = xtensa_$(VARIANT)- 33 endif 34 endif 35endif 36 37# Platform configuration 38 39platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000 40platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss 41platform-$(CONFIG_XTENSA_PLATFORM_S6105) := s6105 42platform-$(CONFIG_XTENSA_PLATFORM_XTFPGA) := xtfpga 43 44PLATFORM = $(platform-y) 45export PLATFORM 46 47# temporarily until string.h is fixed 48KBUILD_CFLAGS += -ffreestanding -D__linux__ 49 50KBUILD_CFLAGS += -pipe -mlongcalls 51 52KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,) 53 54ifneq ($(CONFIG_LD_NO_RELAX),) 55LDFLAGS := --no-relax 56endif 57 58ifeq ($(shell echo -e __XTENSA_EB__ | $(CC) -E - | grep -v "\#"),1) 59CHECKFLAGS += -D__XTENSA_EB__ 60endif 61ifeq ($(shell echo -e __XTENSA_EL__ | $(CC) -E - | grep -v "\#"),1) 62CHECKFLAGS += -D__XTENSA_EL__ 63endif 64 65vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y)) 66plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y)) 67 68ifeq ($(KBUILD_SRC),) 69KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs)) 70else 71KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs)) 72endif 73 74KBUILD_DEFCONFIG := iss_defconfig 75 76# Only build variant and/or platform if it includes a Makefile 77 78buildvar := $(shell test -e $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/) 79buildplf := $(shell test -e $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/) 80 81# Find libgcc.a 82 83LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) 84 85head-y := arch/xtensa/kernel/head.o 86core-y += arch/xtensa/kernel/ arch/xtensa/mm/ 87core-y += $(buildvar) $(buildplf) 88 89libs-y += arch/xtensa/lib/ $(LIBGCC) 90drivers-$(CONFIG_OPROFILE) += arch/xtensa/oprofile/ 91 92ifneq ($(CONFIG_BUILTIN_DTB),"") 93core-$(CONFIG_OF) += arch/xtensa/boot/dts/ 94endif 95 96boot := arch/xtensa/boot 97 98all: zImage 99 100bzImage : zImage 101 102zImage: vmlinux 103 $(Q)$(MAKE) $(build)=$(boot) $@ 104 105%.dtb: 106 $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@ 107 108define archhelp 109 @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)' 110endef 111