forked from Minki/linux
fa1e160b08
Randy reports the following warning when building ARCH=ia64 with CONFIG_IA64_PALINFO=m: ../scripts/Makefile.build:68: 'arch/ia64/kernel/palinfo.ko' will not be built even though obj-m is specified. ../scripts/Makefile.build:69: You cannot use subdir-y/m to visit a module Makefile. Use obj-y/m instead. This message is actually false-positive, and you can get palinfo.ko correctly built. It is emitted in the archprepare stage, where Kbuild descends into arch/ia64/kernel to generate include/generated/nr-irqs.h instead of any kind of kernel objects. arch/ia64/kernel/nr-irqs.c was introduced by commit213060a4d6("[IA64] pvops: paravirtualize NR_IRQS") to pre-calculate: NR_IRQS = max(IA64_NATIVE_NR_IRQS, XEN_NR_IRQS, FOO_NR_IRQS...) Since commitd52eefb47d("ia64/xen: Remove Xen support for ia64"), this union contains just one field, making NR_IRQS and IA64_NATIVE_NR_IRQS always match. So, the following hard-coding now works: #define NR_IRQS IA64_NATIVE_NR_IRQS If you need to re-introduce NR_IRQS = max(...) gimmick in the future, please try to implement it in asm-offsets.c instead of a separate file. It will be possible because the header inclusion has been consolidated to make asm-offsets.c independent of <asm/irqs.h>. Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org>
89 lines
2.5 KiB
Makefile
89 lines
2.5 KiB
Makefile
#
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# ia64/Makefile
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#
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# This file is included by the global makefile so that you can add your own
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# architecture-specific flags and dependencies.
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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# Copyright (C) 1998-2004 by David Mosberger-Tang <davidm@hpl.hp.com>
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#
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KBUILD_DEFCONFIG := generic_defconfig
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NM := $(CROSS_COMPILE)nm -B
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READELF := $(CROSS_COMPILE)readelf
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CHECKFLAGS += -D__ia64=1 -D__ia64__=1 -D_LP64 -D__LP64__
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OBJCOPYFLAGS := --strip-all
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LDFLAGS_vmlinux := -static
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KBUILD_AFLAGS_KERNEL := -mconstant-gp
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EXTRA :=
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cflags-y := -pipe $(EXTRA) -ffixed-r13 -mfixed-range=f12-f15,f32-f127 \
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-falign-functions=32 -frename-registers -fno-optimize-sibling-calls
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KBUILD_CFLAGS_KERNEL := -mconstant-gp
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GAS_STATUS = $(shell $(srctree)/arch/ia64/scripts/check-gas "$(CC)" "$(OBJDUMP)")
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KBUILD_CPPFLAGS += $(shell $(srctree)/arch/ia64/scripts/toolchain-flags "$(CC)" "$(OBJDUMP)" "$(READELF)")
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ifeq ($(GAS_STATUS),buggy)
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$(error Sorry, you need a newer version of the assember, one that is built from \
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a source-tree that post-dates 18-Dec-2002. You can find a pre-compiled \
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static binary of such an assembler at: \
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\
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ftp://ftp.hpl.hp.com/pub/linux-ia64/gas-030124.tar.gz)
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endif
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quiet_cmd_gzip = GZIP $@
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cmd_gzip = cat $(real-prereqs) | $(KGZIP) -n -f -9 > $@
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quiet_cmd_objcopy = OBJCOPY $@
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cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
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KBUILD_CFLAGS += $(cflags-y)
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head-y := arch/ia64/kernel/head.o
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libs-y += arch/ia64/lib/
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core-y += arch/ia64/kernel/ arch/ia64/mm/
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core-$(CONFIG_IA64_SGI_UV) += arch/ia64/uv/
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drivers-y += arch/ia64/pci/ arch/ia64/hp/common/
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drivers-$(CONFIG_OPROFILE) += arch/ia64/oprofile/
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PHONY += compressed check
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all: compressed unwcheck
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compressed: vmlinux.gz
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vmlinuz: vmlinux.gz
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vmlinux.gz: vmlinux.bin FORCE
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$(call if_changed,gzip)
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vmlinux.bin: vmlinux FORCE
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$(call if_changed,objcopy)
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unwcheck: vmlinux
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-$(Q)READELF=$(READELF) $(PYTHON3) $(srctree)/arch/ia64/scripts/unwcheck.py $<
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archclean:
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archheaders:
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$(Q)$(MAKE) $(build)=arch/ia64/kernel/syscalls all
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CLEAN_FILES += vmlinux.gz
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install: vmlinux.gz
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sh $(srctree)/arch/ia64/install.sh $(KERNELRELEASE) $< System.map "$(INSTALL_PATH)"
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define archhelp
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echo '* compressed - Build compressed kernel image'
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echo ' install - Install compressed kernel image'
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echo '* unwcheck - Check vmlinux for invalid unwind info'
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endef
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