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| Started by | Riku Voipio <riku.voipio@linaro.org> |
|---|---|
| First post | 2015-12-01 15:10 +0100 |
| Last post | 2015-12-01 17:30 +0100 |
| Articles | 3 — 3 participants |
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[PATCH v3] uselib: default depending if libc5 was used Riku Voipio <riku.voipio@linaro.org> - 2015-12-01 15:10 +0100
Re: [PATCH v3] uselib: default depending if libc5 was used Josh Triplett <josh@joshtriplett.org> - 2015-12-01 17:30 +0100
Re: [PATCH v3] uselib: default depending if libc5 was used Geert Uytterhoeven <geert@linux-m68k.org> - 2015-12-01 17:30 +0100
| From | Riku Voipio <riku.voipio@linaro.org> |
|---|---|
| Date | 2015-12-01 15:10 +0100 |
| Subject | [PATCH v3] uselib: default depending if libc5 was used |
| Message-ID | <qATN0-2eD-5@gated-at.bofh.it> |
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> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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| From | Josh Triplett <josh@joshtriplett.org> |
|---|---|
| Date | 2015-12-01 17:30 +0100 |
| Message-ID | <qAVYv-3yp-31@gated-at.bofh.it> |
| In reply to | #1280892 |
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 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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| From | Geert Uytterhoeven <geert@linux-m68k.org> |
|---|---|
| Date | 2015-12-01 17:30 +0100 |
| Message-ID | <qAVYv-3yp-35@gated-at.bofh.it> |
| In reply to | #1280892 |
On Tue, Dec 1, 2015 at 3:08 PM, Riku Voipio <riku.voipio@linaro.org> 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>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
--
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