kernel-ark/arch/xtensa/Makefile
Roman Zippel 2e3646e51b kconfig: integrate split config into silentoldconfig
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>
2006-06-09 07:31:30 +02:00

99 lines
2.6 KiB
Makefile

#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 2001 - 2005 Tensilica Inc.
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" and "archdep" for cleaning up and making dependencies for
# this architecture
# Core configuration.
# (Use CPU=<xtensa_config> to use another default compiler.)
cpu-$(CONFIG_XTENSA_CPU_LINUX_BE) := linux_be
cpu-$(CONFIG_XTENSA_CPU_LINUX_CUSTOM) := linux_custom
CPU = $(cpu-y)
export CPU
# Platform configuration
platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000
platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss
PLATFORM = $(platform-y)
export PLATFORM
CPPFLAGS += $(if $(KBUILD_SRC),-I$(srctree)/include/asm-xtensa/)
CPPFLAGS += -Iinclude/asm
CFLAGS += -pipe -mlongcalls
KBUILD_DEFCONFIG := iss_defconfig
# ramdisk/initrd support
# You need a compressed ramdisk image, named ramdisk.gz in
# arch/xtensa/boot/ramdisk
core-$(CONFIG_EMBEDDED_RAMDISK) += arch/xtensa/boot/ramdisk/
# Test for cross compiling
ifneq ($(CPU),)
COMPILE_ARCH = $(shell uname -m)
ifneq ($(COMPILE_ARCH), xtensa)
ifndef CROSS_COMPILE
CROSS_COMPILE = xtensa_$(CPU)-
endif
endif
endif
#
LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
head-y := arch/xtensa/kernel/head.o
core-y += arch/xtensa/kernel/ arch/xtensa/mm/
ifneq ($(PLATFORM),)
core-y += arch/xtensa/platform-$(PLATFORM)/
endif
libs-y += arch/xtensa/lib/ $(LIBGCC)
boot := arch/xtensa/boot
archinc := include/asm-xtensa
archprepare: $(archinc)/.platform
# Update machine cpu and platform symlinks if something which affects
# them changed.
$(archinc)/.platform: $(wildcard include/config/arch/*.h) include/config/auto.conf
@echo ' SYMLINK $(archinc)/xtensa/config -> $(archinc)/xtensa/config-$(CPU)'
$(Q)mkdir -p $(archinc)
$(Q)mkdir -p $(archinc)/xtensa
$(Q)ln -fsn $(srctree)/$(archinc)/xtensa/config-$(CPU) $(archinc)/xtensa/config
@echo ' SYMLINK $(archinc)/platform -> $(archinc)/platform-$(PLATFORM)'
$(Q)ln -fsn $(srctree)/$(archinc)/platform-$(PLATFORM) $(archinc)/platform
@touch $@
all: zImage
bzImage : zImage
zImage zImage.initrd: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $@
CLEAN_FILES += arch/xtensa/vmlinux.lds \
$(archinc)/platform $(archinc)/xtensa/config \
$(archinc)/.platform
define archhelp
@echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
endef