Messages in this thread | | | Date | Tue, 1 Dec 2015 08:23:38 -0800 | From | Josh Triplett <> | Subject | Re: [PATCH v3] uselib: default depending if libc5 was used |
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On Tue, Dec 01, 2015 at 04:08:57PM +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 slightly 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.voipio@linaro.org> > Cc: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
> v3: only depend on IA32_EMULATION to catch X86_64 with 32bit case > v2: Disable uselib on X86_64 if no 32bit support > init/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/init/Kconfig b/init/Kconfig > index c24b6f7..5a7f375 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_32 || IA32_EMULATION > 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 >
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