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