8e1a6dd2fd
The attached patches provides part 1 of an architecture implementation for the Tensilica Xtensa CPU series. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
103 lines
2.7 KiB
Makefile
103 lines
2.7 KiB
Makefile
#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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# Copyright (C) 2001 - 2005 Tensilica Inc.
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#
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# This file is included by the global makefile so that you can add your own
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# architecture-specific flags and dependencies. Remember to do have actions
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# for "archclean" and "archdep" for cleaning up and making dependencies for
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# this architecture
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# Core configuration.
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# (Use CPU=<xtensa_config> to use another default compiler.)
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cpu-$(CONFIG_XTENSA_CPU_LINUX_BE) := linux_be
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cpu-$(CONFIG_XTENSA_CPU_LINUX_CUSTOM) := linux_custom
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CPU = $(cpu-y)
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export CPU
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# Platform configuration
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platform-y := common
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platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000
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platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss
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PLATFORM = $(platform-y)
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export PLATFORM
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#LDFLAGS_vmlinux := -T$(word 1,$(LINKSCRIPT))
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AFLAGS_vmlinux.lds.o := -Uxtensa
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CPPFLAGS += -Iarch/xtensa -Iinclude/asm -mlongcalls -g
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AFLAGS += -Iarch/xtensa -Iinclude/asm
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CPP = $(CC) -E $(CFLAGS)
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cflags-y += -Iarch/xtensa -pipe -mlongcalls
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KBUILD_DEFCONFIG := common_defconfig
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# ramdisk/initrd support
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# You need a compressed ramdisk image, named ramdisk.gz in
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# arch/xtensa/boot/ramdisk
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core-$(CONFIG_EMBEDDED_RAMDISK) += arch/xtensa/boot/ramdisk/
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# Test for cross compiling
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ifneq ($(CPU),)
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COMPILE_ARCH = $(shell uname -m)
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ifneq ($(COMPILE_ARCH), xtensa)
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ifndef CROSS_COMPILE
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CROSS_COMPILE = xtensa_$(CPU)-
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endif
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endif
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endif
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#
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LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
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head-y := arch/xtensa/kernel/head.o
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core-y += arch/xtensa/kernel/ \
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arch/xtensa/mm/ arch/xtensa/platform-$(PLATFORM)/
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libs-y += arch/xtensa/lib/ $(LIBGCC)
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boot := arch/xtensa/boot
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arch/xtensa/kernel/asm-offsets.s: \
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arch/xtensa/kernel/asm-offsets.c \
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include/asm-xtensa/.platform
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include/asm-xtensa/offsets.h: arch/xtensa/kernel/asm-offsets.s
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$(call filechk,gen-asm-offsets)
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prepare: include/asm-xtensa/.platform include/asm-xtensa/offsets.h
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# Update machine cpu and platform symlinks if something which affects
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# them changed.
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include/asm-xtensa/.platform: $(wildcard include/config/arch/*.h)
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@echo ' Setting up cpu ($(CPU)) and platform ($(PLATFORM)) symlinks'
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$(Q)rm -f include/asm-xtensa/platform
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$(Q)rm -f include/asm-xtensa/xtensa/config
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$(Q)(cd include/asm-xtensa/; ln -sf platform-$(PLATFORM) platform)
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$(Q)(cd include/asm-xtensa/xtensa; ln -sf config-$(CPU) config)
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all: zImage
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bzImage : zImage
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zImage zImage.initrd: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) $@
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CLEAN_FILES += arch/xtensa/vmlinux.lds include/asm-xtensa/offset.h
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define archhelp
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@echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
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endef
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