| 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 | |
| 16 | variant-$(CONFIG_XTENSA_VARIANT_FSF) := fsf |
| 17 | variant-$(CONFIG_XTENSA_VARIANT_DC232B) := dc232b |
| 18 | variant-$(CONFIG_XTENSA_VARIANT_DC233C) := dc233c |
| 19 | variant-$(CONFIG_XTENSA_VARIANT_S6000) := s6000 |
| 20 | variant-$(CONFIG_XTENSA_VARIANT_LINUX_CUSTOM) := custom |
| 21 | |
| 22 | VARIANT = $(variant-y) |
| 23 | export VARIANT |
| 24 | |
| 25 | # Test for cross compiling |
| 26 | |
| 27 | ifneq ($(VARIANT),) |
| 28 | COMPILE_ARCH = $(shell uname -m) |
| 29 | |
| 30 | ifneq ($(COMPILE_ARCH), xtensa) |
| 31 | ifndef CROSS_COMPILE |
| 32 | CROSS_COMPILE = xtensa_$(VARIANT)- |
| 33 | endif |
| 34 | endif |
| 35 | endif |
| 36 | |
| 37 | # Platform configuration |
| 38 | |
| 39 | platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000 |
| 40 | platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss |
| 41 | platform-$(CONFIG_XTENSA_PLATFORM_S6105) := s6105 |
| 42 | platform-$(CONFIG_XTENSA_PLATFORM_XTFPGA) := xtfpga |
| 43 | |
| 44 | PLATFORM = $(platform-y) |
| 45 | export PLATFORM |
| 46 | |
| 47 | # temporarily until string.h is fixed |
| 48 | KBUILD_CFLAGS += -ffreestanding -D__linux__ |
| 49 | |
| 50 | KBUILD_CFLAGS += -pipe -mlongcalls |
| 51 | |
| 52 | KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,) |
| 53 | |
| 54 | ifneq ($(CONFIG_LD_NO_RELAX),) |
| 55 | LDFLAGS := --no-relax |
| 56 | endif |
| 57 | |
| 58 | ifeq ($(shell echo __XTENSA_EB__ | $(CC) -E - | grep -v "\#"),1) |
| 59 | CHECKFLAGS += -D__XTENSA_EB__ |
| 60 | endif |
| 61 | ifeq ($(shell echo __XTENSA_EL__ | $(CC) -E - | grep -v "\#"),1) |
| 62 | CHECKFLAGS += -D__XTENSA_EL__ |
| 63 | endif |
| 64 | |
| 65 | vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y)) |
| 66 | plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y)) |
| 67 | |
| 68 | ifeq ($(KBUILD_SRC),) |
| 69 | KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs)) |
| 70 | else |
| 71 | KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs)) |
| 72 | endif |
| 73 | |
| 74 | KBUILD_DEFCONFIG := iss_defconfig |
| 75 | |
| 76 | # Only build variant and/or platform if it includes a Makefile |
| 77 | |
| 78 | buildvar := $(shell test -e $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/) |
| 79 | buildplf := $(shell test -e $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/) |
| 80 | |
| 81 | # Find libgcc.a |
| 82 | |
| 83 | LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) |
| 84 | |
| 85 | head-y := arch/xtensa/kernel/head.o |
| 86 | core-y += arch/xtensa/kernel/ arch/xtensa/mm/ |
| 87 | core-y += $(buildvar) $(buildplf) |
| 88 | |
| 89 | libs-y += arch/xtensa/lib/ $(LIBGCC) |
| 90 | drivers-$(CONFIG_OPROFILE) += arch/xtensa/oprofile/ |
| 91 | |
| 92 | ifneq ($(CONFIG_BUILTIN_DTB),"") |
| 93 | core-$(CONFIG_OF) += arch/xtensa/boot/dts/ |
| 94 | endif |
| 95 | |
| 96 | boot := arch/xtensa/boot |
| 97 | |
| 98 | all: zImage |
| 99 | |
| 100 | bzImage : zImage |
| 101 | |
| 102 | zImage: vmlinux |
| 103 | $(Q)$(MAKE) $(build)=$(boot) $@ |
| 104 | |
| 105 | %.dtb: |
| 106 | $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@ |
| 107 | |
| 108 | define archhelp |
| 109 | @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)' |
| 110 | endef |