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linux-next/arch/blackfin/Makefile
James Hogan 6895f97e15 kbuild: add symbol prefix arg to kallsyms 
Commit 1f2bfbd00e ("kbuild: link of
vmlinux moved to a script") introduced in v3.5-rc1 broke kallsyms on
architectures which have symbol prefixes.

The --symbol-prefix argument used to be added to the KALLSYMS command
line from the architecture Makefile, however this isn't picked up by the
new scripts/link-vmlinux.sh. This resulted in symbols like
kallsyms_addresses being added which weren't correctly overriding the
weak symbols such as _kallsyms_addresses. These could then trigger
BUG_ONs in kallsyms code.

This is fixed by removing the KALLSYMS addition from the architecture
Makefile, and using CONFIG_SYMBOL_PREFIX in the link-vmlinux.sh script
to determine whether to add the --symbol-prefix argument.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-09-11 10:25:12 +08:00

169 lines
5.4 KiB
Makefile
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#
# 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.
#
ifeq ($(CROSS_COMPILE),)
CROSS_COMPILE := bfin-uclinux-
endif
LDFLAGS_vmlinux := -X
OBJCOPYFLAGS := -O binary -R .note -R .comment -S
GZFLAGS := -9
KBUILD_CFLAGS += $(call cc-option,-mno-fdpic)
ifeq ($(CONFIG_ROMKERNEL),y)
KBUILD_CFLAGS += -mlong-calls
endif
KBUILD_AFLAGS += $(call cc-option,-mno-fdpic)
KBUILD_CFLAGS_MODULE += -mlong-calls
LDFLAGS += -m elf32bfin
KBUILD_DEFCONFIG := BF537-STAMP_defconfig
# setup the machine name and the machine dependent settings
machine-$(CONFIG_BF512) := bf518
machine-$(CONFIG_BF514) := bf518
machine-$(CONFIG_BF516) := bf518
machine-$(CONFIG_BF518) := bf518
machine-$(CONFIG_BF522) := bf527
machine-$(CONFIG_BF523) := bf527
machine-$(CONFIG_BF524) := bf527
machine-$(CONFIG_BF525) := bf527
machine-$(CONFIG_BF526) := bf527
machine-$(CONFIG_BF527) := bf527
machine-$(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_BF538) := bf538
machine-$(CONFIG_BF539) := bf538
machine-$(CONFIG_BF542) := bf548
machine-$(CONFIG_BF542M) := bf548
machine-$(CONFIG_BF544) := bf548
machine-$(CONFIG_BF544M) := bf548
machine-$(CONFIG_BF547) := bf548
machine-$(CONFIG_BF547M) := bf548
machine-$(CONFIG_BF548) := bf548
machine-$(CONFIG_BF548M) := bf548
machine-$(CONFIG_BF549) := bf548
machine-$(CONFIG_BF549M) := bf548
machine-$(CONFIG_BF561) := bf561
machine-$(CONFIG_BF609) := bf609
MACHINE := $(machine-y)
export MACHINE
cpu-$(CONFIG_BF512) := bf512
cpu-$(CONFIG_BF514) := bf514
cpu-$(CONFIG_BF516) := bf516
cpu-$(CONFIG_BF518) := bf518
cpu-$(CONFIG_BF522) := bf522
cpu-$(CONFIG_BF523) := bf523
cpu-$(CONFIG_BF524) := bf524
cpu-$(CONFIG_BF525) := bf525
cpu-$(CONFIG_BF526) := bf526
cpu-$(CONFIG_BF527) := bf527
cpu-$(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_BF538) := bf538
cpu-$(CONFIG_BF539) := bf539
cpu-$(CONFIG_BF542) := bf542
cpu-$(CONFIG_BF542M) := bf542m
cpu-$(CONFIG_BF544) := bf544
cpu-$(CONFIG_BF544M) := bf544m
cpu-$(CONFIG_BF547) := bf547
cpu-$(CONFIG_BF547M) := bf547m
cpu-$(CONFIG_BF548) := bf548
cpu-$(CONFIG_BF548M) := bf548m
cpu-$(CONFIG_BF549) := bf549
cpu-$(CONFIG_BF549M) := bf549m
cpu-$(CONFIG_BF561) := bf561
cpu-$(CONFIG_BF609) := bf609
rev-$(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_0_6) := 0.6
rev-$(CONFIG_BF_REV_NONE) := none
rev-$(CONFIG_BF_REV_ANY) := any
CPU_REV := $(cpu-y)-$(rev-y)
export CPU_REV
KBUILD_CFLAGS += -mcpu=$(CPU_REV)
KBUILD_AFLAGS += -mcpu=$(CPU_REV)
# - we utilize the silicon rev from the toolchain, so move it over to the checkflags
CHECKFLAGS_SILICON = $(shell echo "" | $(CPP) $(KBUILD_CFLAGS) -dD - 2>/dev/null | awk '$$2 == "__SILICON_REVISION__" { print $$3 }')
CHECKFLAGS += -D__SILICON_REVISION__=$(CHECKFLAGS_SILICON) -D__bfin__
core-y += arch/$(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-$(MACHINE)/boards/
endif
ifeq ($(CONFIG_MPU),y)
core-y += arch/$(ARCH)/kernel/cplb-mpu/
else
core-y += arch/$(ARCH)/kernel/cplb-nompu/
endif
drivers-$(CONFIG_OPROFILE) += arch/$(ARCH)/oprofile/
libs-y += arch/$(ARCH)/lib/
machdirs := $(patsubst %,arch/blackfin/mach-%/, $(machine-y))
KBUILD_CFLAGS += -Iarch/$(ARCH)/include/
KBUILD_CFLAGS += -Iarch/$(ARCH)/mach-$(MACHINE)/include
KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs))
CLEAN_FILES += \
arch/$(ARCH)/kernel/asm-offsets.s \
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
INSTALL_PATH ?= /tftpboot
boot := arch/$(ARCH)/boot
BOOT_TARGETS = vmImage vmImage.bin vmImage.bz2 vmImage.gz vmImage.lzma vmImage.lzo vmImage.xip
PHONY += $(BOOT_TARGETS) install
KBUILD_IMAGE := $(boot)/vmImage
all: vmImage
$(BOOT_TARGETS): vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
install:
$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
define archhelp
echo '* vmImage - Alias to selected kernel format (vmImage.gz by default)'
echo ' vmImage.bin - Uncompressed Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.bin)'
echo ' vmImage.bz2 - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.bz2)'
echo '* vmImage.gz - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.gz)'
echo ' vmImage.lzma - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.lzma)'
echo ' vmImage.lzo - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.lzo)'
echo ' vmImage.xip - XIP Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.xip)'
echo ' install - Install kernel using'
echo ' (your) ~/bin/$(INSTALLKERNEL) or'
echo ' (distribution) PATH: $(INSTALLKERNEL) or'
echo ' install to $$(INSTALL_PATH)'
endef
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