mirror of
https://github.com/torvalds/linux.git
synced 2024-11-02 10:11:36 +00:00
5bb7826900
When introducing the generic asm-offsets.h support the dependency
chain for the prepare targets was changed. All build scripts expecting
include/asm/asm-offsets.h to be made when using the prepare target would broke.
With the limited number of prepare targets left in arch Makefiles
the trivial solution was to introduce a new arch specific target: archprepare
The dependency chain looks like this now:
prepare
|
+--> prepare0
|
+--> archprepare
|
+--> scripts_basic
+--> prepare1
|
+---> prepare2
|
+--> prepare3
So prepare 3 is processed before prepare2 etc.
This guaantees that the asm symlink, version.h, scripts_basic
are all updated before archprepare is processed.
prepare0 which build the asm-offsets.h file will need the
actions performed by archprepare.
The head target is now named prepare, because users scripts will most
likely use that target, but prepare-all has been kept for compatibility.
Updated Documentation/kbuild/makefiles.txt.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
99 lines
2.6 KiB
Makefile
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/MARKER
|
|
@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
|
|
|