2e3646e51b
Now that kconfig can load multiple configurations, it becomes simple to integrate the split config step, by simply comparing the new .config file with the old auto.conf (and then saving the new auto.conf). A nice side effect is that this saves a bit of disk space and cache, as no data needs to be read from or saved into the splitted config files anymore (e.g. include/config is now 648KB instead of 5.2MB). Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
98 lines
2.6 KiB
Makefile
98 lines
2.6 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 = $(cpu-y)
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export CPU
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# Platform configuration
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platform-$(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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CPPFLAGS += $(if $(KBUILD_SRC),-I$(srctree)/include/asm-xtensa/)
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CPPFLAGS += -Iinclude/asm
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CFLAGS += -pipe -mlongcalls
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KBUILD_DEFCONFIG := iss_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) $(CFLAGS) -print-libgcc-file-name)
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head-y := arch/xtensa/kernel/head.o
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core-y += arch/xtensa/kernel/ arch/xtensa/mm/
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ifneq ($(PLATFORM),)
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core-y += arch/xtensa/platform-$(PLATFORM)/
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endif
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libs-y += arch/xtensa/lib/ $(LIBGCC)
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boot := arch/xtensa/boot
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archinc := include/asm-xtensa
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archprepare: $(archinc)/.platform
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# Update machine cpu and platform symlinks if something which affects
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# them changed.
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$(archinc)/.platform: $(wildcard include/config/arch/*.h) include/config/auto.conf
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@echo ' SYMLINK $(archinc)/xtensa/config -> $(archinc)/xtensa/config-$(CPU)'
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$(Q)mkdir -p $(archinc)
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$(Q)mkdir -p $(archinc)/xtensa
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$(Q)ln -fsn $(srctree)/$(archinc)/xtensa/config-$(CPU) $(archinc)/xtensa/config
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@echo ' SYMLINK $(archinc)/platform -> $(archinc)/platform-$(PLATFORM)'
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$(Q)ln -fsn $(srctree)/$(archinc)/platform-$(PLATFORM) $(archinc)/platform
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@touch $@
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all: zImage
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bzImage : zImage
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zImage zImage.initrd: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) $@
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CLEAN_FILES += arch/xtensa/vmlinux.lds \
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$(archinc)/platform $(archinc)/xtensa/config \
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$(archinc)/.platform
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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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