a0f97e06a4
The variable CFLAGS is a wellknown variable and the usage by kbuild may result in unexpected behaviour. On top of that several people over time has asked for a way to pass in additional flags to gcc. This patch replace use of CFLAGS with KBUILD_CFLAGS all over the tree and enabling one to use: make CFLAGS=... to specify additional gcc commandline options. One usecase is when trying to find gcc bugs but other use cases has been requested too. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k Test was simple to do a defconfig build, apply the patch and check that nothing got rebuild. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
109 lines
3.0 KiB
Makefile
109 lines
3.0 KiB
Makefile
#
|
|
# arch/blackfin/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.
|
|
#
|
|
|
|
|
|
CROSS_COMPILE ?= bfin-uclinux-
|
|
LDFLAGS_vmlinux := -X
|
|
OBJCOPYFLAGS := -O binary -R .note -R .comment -S
|
|
GZFLAGS := -9
|
|
|
|
CFLAGS_MODULE += -mlong-calls
|
|
KALLSYMS += --symbol-prefix=_
|
|
|
|
KBUILD_DEFCONFIG := BF537-STAMP_defconfig
|
|
|
|
# setup the machine name and the machine dependent settings
|
|
machine-$(CONFIG_BF531) := bf533
|
|
machine-$(CONFIG_BF532) := bf533
|
|
machine-$(CONFIG_BF533) := bf533
|
|
machine-$(CONFIG_BF534) := bf537
|
|
machine-$(CONFIG_BF536) := bf537
|
|
machine-$(CONFIG_BF537) := bf537
|
|
machine-$(CONFIG_BF542) := bf548
|
|
machine-$(CONFIG_BF544) := bf548
|
|
machine-$(CONFIG_BF548) := bf548
|
|
machine-$(CONFIG_BF549) := bf548
|
|
machine-$(CONFIG_BF561) := bf561
|
|
MACHINE := $(machine-y)
|
|
export MACHINE
|
|
|
|
cpu-$(CONFIG_BF531) := bf531
|
|
cpu-$(CONFIG_BF532) := bf532
|
|
cpu-$(CONFIG_BF533) := bf533
|
|
cpu-$(CONFIG_BF534) := bf534
|
|
cpu-$(CONFIG_BF536) := bf536
|
|
cpu-$(CONFIG_BF537) := bf537
|
|
cpu-$(CONFIG_BF542) := bf542
|
|
cpu-$(CONFIG_BF544) := bf544
|
|
cpu-$(CONFIG_BF548) := bf548
|
|
cpu-$(CONFIG_BF549) := bf549
|
|
cpu-$(CONFIG_BF561) := bf561
|
|
|
|
rev-$(CONFIG_BF_REV_0_0) := 0.0
|
|
rev-$(CONFIG_BF_REV_0_1) := 0.1
|
|
rev-$(CONFIG_BF_REV_0_2) := 0.2
|
|
rev-$(CONFIG_BF_REV_0_3) := 0.3
|
|
rev-$(CONFIG_BF_REV_0_4) := 0.4
|
|
rev-$(CONFIG_BF_REV_0_5) := 0.5
|
|
rev-$(CONFIG_BF_REV_NONE) := none
|
|
rev-$(CONFIG_BF_REV_ANY) := any
|
|
|
|
KBUILD_CFLAGS += -mcpu=$(cpu-y)-$(rev-y)
|
|
AFLAGS += -mcpu=$(cpu-y)-$(rev-y)
|
|
|
|
head-y := arch/$(ARCH)/mach-$(MACHINE)/head.o arch/$(ARCH)/kernel/init_task.o
|
|
|
|
core-y += arch/$(ARCH)/kernel/ arch/$(ARCH)/mm/ arch/$(ARCH)/mach-common/
|
|
|
|
# If we have a machine-specific directory, then include it in the build.
|
|
ifneq ($(machine-y),)
|
|
core-y += arch/$(ARCH)/mach-$(MACHINE)/
|
|
core-y += arch/$(ARCH)/mach-$(MACHINE)/boards/
|
|
endif
|
|
|
|
libs-y += arch/$(ARCH)/lib/
|
|
|
|
drivers-$(CONFIG_OPROFILE) += arch/$(ARCH)/oprofile/
|
|
|
|
|
|
|
|
# Update machine arch symlinks if something which affects
|
|
# them changed. We use .mach to indicate when they were updated
|
|
# last, otherwise make uses the target directory mtime.
|
|
|
|
include/asm-blackfin/.mach: $(wildcard include/config/arch/*.h) include/config/auto.conf
|
|
@echo ' SYMLINK include/asm-$(ARCH)/mach-$(MACHINE) -> include/asm-$(ARCH)/mach'
|
|
ifneq ($(KBUILD_SRC),)
|
|
$(Q)mkdir -p include/asm-$(ARCH)
|
|
$(Q)ln -fsn $(srctree)/include/asm-$(ARCH)/mach-$(MACHINE) include/asm-$(ARCH)/mach
|
|
else
|
|
$(Q)ln -fsn mach-$(MACHINE) include/asm-$(ARCH)/mach
|
|
endif
|
|
@touch $@
|
|
|
|
CLEAN_FILES += \
|
|
include/asm-$(ARCH)/asm-offsets.h \
|
|
arch/$(ARCH)/kernel/asm-offsets.s \
|
|
include/asm-$(ARCH)/mach \
|
|
include/asm-$(ARCH)/.mach
|
|
|
|
archprepare: include/asm-blackfin/.mach
|
|
archclean:
|
|
$(Q)$(MAKE) $(clean)=$(boot)
|
|
|
|
|
|
all: vmImage
|
|
boot := arch/$(ARCH)/boot
|
|
BOOT_TARGETS = vmImage
|
|
.PHONY: $(BOOT_TARGETS)
|
|
$(BOOT_TARGETS): vmlinux
|
|
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
|
|
define archhelp
|
|
echo '* vmImage - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage)'
|
|
endef
|