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authorGeert Uytterhoeven <geert@linux-m68k.org>2013-12-18 17:08:48 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-12-18 19:04:51 -0800
commit84ed8a99058e61567f495cc43118344261641c5f (patch)
tree0b97c1660359e831fb3947a83ee7b37705ec0823 /mm/Kconfig
parent73f038b863dfe98acabc7c36c17342b84ad52e94 (diff)
downloadop-kernel-dev-84ed8a99058e61567f495cc43118344261641c5f.zip
op-kernel-dev-84ed8a99058e61567f495cc43118344261641c5f.tar.gz
sh: always link in helper functions extracted from libgcc
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>
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