On Fri, Nov 27, 2015 at 11:11:26AM +0200, Riku Voipio wrote: > uselib hasn't been used since libc5; glibc does not use it. > Deprecate uselib a bit more, by making the default y only > if libc5 was widely used on the plaform. > > This makes arm64 kernel built with defconfig slighly smaller > > bloat-o-meter: > add/remove: 0/3 grow/shrink: 0/2 up/down: 0/-1390 (-1390) > function old new delta > kernel_config_data 18164 18162 -2 > uselib_flags 20 - -20 > padzero 216 192 -24 > sys_uselib 380 - -380 > load_elf_library 964 - -964 > > Signed-off-by: Riku Voipio <riku.voi...@linaro.org> > Cc: Josh Triplett <j...@joshtriplett.org>
Seems sensible. Can you also make it only "default y" on 32-bit x86, not 64-bit x86, since the latter never had libc5? With that change: Reviewed-by: Josh Triplett <j...@joshtriplett.org> > init/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/init/Kconfig b/init/Kconfig > index c24b6f7..bef326d 100644 > --- a/init/Kconfig > +++ b/init/Kconfig > @@ -285,7 +285,7 @@ config FHANDLE > > config USELIB > bool "uselib syscall" > - default y > + def_bool ALPHA || M68K || SPARC || X86 > help > This option enables the uselib syscall, a system call used in the > dynamic linker from libc5 and earlier. glibc does not use this > -- > 2.6.2 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
