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android_kernel_sony_msm8994/arch/sh/Makefile
Paul Smith 4f1933620f kbuild: change kbuild to not rely on incorrect GNU make behavior 
The kbuild system takes advantage of an incorrect behavior in GNU make.
Once this behavior is fixed, all files in the kernel rebuild every time,
even if nothing has changed.  This patch ensures kbuild works with both
the incorrect and correct behaviors of GNU make.

For more details on the incorrect behavior, see:

http://lists.gnu.org/archive/html/bug-make/2006-03/msg00003.html

Changes in this patch:
  - Keep all targets that are to be marked .PHONY in a variable, PHONY.
  - Add .PHONY: $(PHONY) to mark them properly.
  - Remove any $(PHONY) files from the $? list when determining whether
    targets are up-to-date or not.

Signed-off-by: Paul Smith <psmith@gnu.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-06 00:09:51 +01:00

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Makefile
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# $Id: Makefile,v 1.35 2004/04/15 03:39:20 sugioka Exp $
#
# 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) 1999 Kaz Kojima
# Copyright (C) 2002, 2003, 2004 Paul Mundt
# Copyright (C) 2002 M. R. Brown
#
# 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
#
cflags-y := -mb
cflags-$(CONFIG_CPU_LITTLE_ENDIAN) := -ml
isa-y := any
isa-$(CONFIG_CPU_SH2) := sh2
isa-$(CONFIG_CPU_SH3) := sh3
isa-$(CONFIG_CPU_SH4) := sh4
isa-$(CONFIG_CPU_SH4A) := sh4a
isa-$(CONFIG_CPU_SH2A) := sh2a
isa-$(CONFIG_SH_DSP) := $(isa-y)-dsp
ifndef CONFIG_MMU
isa-y := $(isa-y)-nommu
endif
ifndef CONFIG_SH_FPU
isa-y := $(isa-y)-nofpu
endif
cflags-y += $(call as-option,-Wa$(comma)-isa=$(isa-y),)
cflags-$(CONFIG_CPU_SH2) += -m2
cflags-$(CONFIG_CPU_SH3) += -m3
cflags-$(CONFIG_CPU_SH4) += -m4 \
$(call cc-option,-mno-implicit-fp,-m4-nofpu)
cflags-$(CONFIG_CPU_SH4A) += $(call cc-option,-m4a-nofpu,)
cflags-$(CONFIG_SH_DSP) += -Wa,-dsp
cflags-$(CONFIG_SH_KGDB) += -g
cflags-$(CONFIG_MORE_COMPILE_OPTIONS) += \
$(shell echo $(CONFIG_COMPILE_OPTIONS) | sed -e 's/"//g')
OBJCOPYFLAGS := -O binary -R .note -R .comment -R .stab -R .stabstr -S
#
# arch/sh/defconfig doesn't reflect any real hardware, and as such should
# never be used by anyone. Use a board-specific defconfig that has a
# reasonable chance of being current instead.
#
KBUILD_DEFCONFIG := rts7751r2d_defconfig
#
# Choosing incompatible machines durings configuration will result in
# error messages during linking.
#
LDFLAGS_vmlinux += -e _stext
ifdef CONFIG_CPU_LITTLE_ENDIAN
LDFLAGS_vmlinux += --defsym 'jiffies=jiffies_64'
LDFLAGS += -EL
else
LDFLAGS_vmlinux += --defsym 'jiffies=jiffies_64+4'
LDFLAGS += -EB
endif
CFLAGS += -pipe $(cflags-y)
AFLAGS += $(cflags-y)
head-y := arch/sh/kernel/head.o arch/sh/kernel/init_task.o
LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
core-y += arch/sh/kernel/ arch/sh/mm/
# Boards
machdir-$(CONFIG_SH_SOLUTION_ENGINE) := se/770x
machdir-$(CONFIG_SH_7751_SOLUTION_ENGINE) := se/7751
machdir-$(CONFIG_SH_7300_SOLUTION_ENGINE) := se/7300
machdir-$(CONFIG_SH_73180_SOLUTION_ENGINE) := se/73180
machdir-$(CONFIG_SH_STB1_HARP) := harp
machdir-$(CONFIG_SH_STB1_OVERDRIVE) := overdrive
machdir-$(CONFIG_SH_HP6XX) := hp6xx
machdir-$(CONFIG_SH_CQREEK) := cqreek
machdir-$(CONFIG_SH_DMIDA) := dmida
machdir-$(CONFIG_SH_EC3104) := ec3104
machdir-$(CONFIG_SH_SATURN) := saturn
machdir-$(CONFIG_SH_DREAMCAST) := dreamcast
machdir-$(CONFIG_SH_CAT68701) := cat68701
machdir-$(CONFIG_SH_BIGSUR) := bigsur
machdir-$(CONFIG_SH_SH2000) := sh2000
machdir-$(CONFIG_SH_ADX) := adx
machdir-$(CONFIG_SH_MPC1211) := mpc1211
machdir-$(CONFIG_SH_SH03) := sh03
machdir-$(CONFIG_SH_SECUREEDGE5410) := snapgear
machdir-$(CONFIG_SH_HS7751RVOIP) := renesas/hs7751rvoip
machdir-$(CONFIG_SH_RTS7751R2D) := renesas/rts7751r2d
machdir-$(CONFIG_SH_7751_SYSTEMH) := renesas/systemh
machdir-$(CONFIG_SH_EDOSK7705) := renesas/edosk7705
machdir-$(CONFIG_SH_SH4202_MICRODEV) := superh/microdev
machdir-$(CONFIG_SH_UNKNOWN) := unknown
incdir-y := $(notdir $(machdir-y))
incdir-$(CONFIG_SH_SOLUTION_ENGINE) := se
incdir-$(CONFIG_SH_7751_SOLUTION_ENGINE) := se7751
incdir-$(CONFIG_SH_7300_SOLUTION_ENGINE) := se7300
incdir-$(CONFIG_SH_73180_SOLUTION_ENGINE) := se73180
incdir-$(CONFIG_SH_HP600) := hp6xx
ifneq ($(machdir-y),)
core-y += arch/sh/boards/$(machdir-y)/
endif
# Companion chips
core-$(CONFIG_HD64461) += arch/sh/cchips/hd6446x/hd64461/
core-$(CONFIG_HD64465) += arch/sh/cchips/hd6446x/hd64465/
core-$(CONFIG_VOYAGERGX) += arch/sh/cchips/voyagergx/
cpuincdir-$(CONFIG_CPU_SH2) := cpu-sh2
cpuincdir-$(CONFIG_CPU_SH3) := cpu-sh3
cpuincdir-$(CONFIG_CPU_SH4) := cpu-sh4
libs-y := arch/sh/lib/ $(libs-y) $(LIBGCC)
drivers-y += arch/sh/drivers/
drivers-$(CONFIG_OPROFILE) += arch/sh/oprofile/
boot := arch/sh/boot
CPPFLAGS_vmlinux.lds := -traditional
ifneq ($(KBUILD_SRC),)
incdir-prefix := $(srctree)/include/asm-sh/
else
incdir-prefix :=
endif
# Update machine arch and proc symlinks if something which affects
# them changed. We use .arch and .mach to indicate when they were
# updated last, otherwise make uses the target directory mtime.
include/asm-sh/.cpu: $(wildcard include/config/cpu/*.h) include/config/MARKER
@echo ' SYMLINK include/asm-sh/cpu -> include/asm-sh/$(cpuincdir-y)'
$(Q)if [ ! -d include/asm-sh ]; then mkdir -p include/asm-sh; fi
$(Q)ln -fsn $(incdir-prefix)$(cpuincdir-y) include/asm-sh/cpu
@touch $@
# Most boards have their own mach directories. For the ones that
# don't, just reference the parent directory so the semantics are
# kept roughly the same.
include/asm-sh/.mach: $(wildcard include/config/sh/*.h) include/config/MARKER
@echo -n ' SYMLINK include/asm-sh/mach -> '
$(Q)if [ ! -d include/asm-sh ]; then mkdir -p include/asm-sh; fi
$(Q)if [ -d $(incdir-prefix)$(incdir-y) ]; then \
echo -e 'include/asm-sh/$(incdir-y)'; \
ln -fsn $(incdir-prefix)$(incdir-y) \
include/asm-sh/mach; \
else \
echo -e 'include/asm-sh'; \
ln -fsn $(incdir-prefix) include/asm-sh/mach; \
fi
@touch $@
archprepare: maketools include/asm-sh/.cpu include/asm-sh/.mach
PHONY += maketools FORCE
maketools: include/linux/version.h FORCE
$(Q)$(MAKE) $(build)=arch/sh/tools include/asm-sh/machtypes.h
all: zImage
zImage: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
compressed: zImage
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
CLEAN_FILES += include/asm-sh/machtypes.h
define archhelp
@echo ' zImage - Compressed kernel image (arch/sh/boot/zImage)'
endef
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