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E.g. landisk_defconfig, which has CONFIG_NTFS_FS=m: ERROR: "__ashrdi3" [fs/ntfs/ntfs.ko] undefined! For "lib-y", if no symbols in a compilation unit are referenced by other units, the compilation unit will not be included in vmlinux. This breaks modules that do reference those symbols. Use "obj-y" instead to fix this. http://kisskb.ellerman.id.au/kisskb/buildresult/8838077/ This doesn't fix all cases. There are others, e.g. udivsi3. This is also not limited to sh, many architectures handle this in the same way. A simple solution is to unconditionally include all helper functions. A more complex solution is to make the choice of "lib-y" or "obj-y" depend on CONFIG_MODULES: obj-$(CONFIG_MODULES) += ... lib-y($CONFIG_MODULES) += ... Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Paul Mundt <lethal@linux-sh.org> Tested-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Reviewed-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
33 lines
766 B
Makefile
33 lines
766 B
Makefile
#
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# Makefile for SuperH-specific library files..
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#
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lib-y = delay.o memmove.o memchr.o \
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checksum.o strlen.o div64.o div64-generic.o
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# Extracted from libgcc
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obj-y += movmem.o ashldi3.o ashrdi3.o lshrdi3.o \
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ashlsi3.o ashrsi3.o ashiftrt.o lshrsi3.o \
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udiv_qrnnd.o
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udivsi3-y := udivsi3_i4i-Os.o
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ifneq ($(CONFIG_CC_OPTIMIZE_FOR_SIZE),y)
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udivsi3-$(CONFIG_CPU_SH3) := udivsi3_i4i.o
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udivsi3-$(CONFIG_CPU_SH4) := udivsi3_i4i.o
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endif
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udivsi3-y += udivsi3.o
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obj-y += io.o
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memcpy-y := memcpy.o
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memcpy-$(CONFIG_CPU_SH4) := memcpy-sh4.o
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memset-y := memset.o
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memset-$(CONFIG_CPU_SH4) := memset-sh4.o
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lib-$(CONFIG_MMU) += copy_page.o __clear_user.o
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lib-$(CONFIG_MCOUNT) += mcount.o
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lib-y += $(memcpy-y) $(memset-y) $(udivsi3-y)
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ccflags-y := -Werror
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