[Buildroot] [git commit] package/polkit: bump to version 0.116

Thomas Petazzoni thomas.petazzoni at bootlin.com
Mon Feb 10 08:33:39 UTC 2020

Hello Carlos,

On Sun, 9 Feb 2020 21:00:31 -0300
Carlos Santos <unixmania at gmail.com> wrote:

> > Signed-off-by: Adam Duskett <Aduskett at gmail.com>
> > Signed-off-by: Thomas Petazzoni <thomas.petazzoni at bootlin.com>  
> Argh, the mozjs (spidermonkey) dependency increases the size of the
> target system by 45 MiB!

Yes, the mozjs dependency is unfortunate, and trust me, we would very
much have liked polkit to use a different JS engine, or no JS at all.
We have been postponing this polkit bump for years due to this. But
this is upstream polkit's decision, and at some point, we have no
choice but to follow what they did.

If you look at the polkit archive, many years ago there was a patch
series posted to use the ducktape JS engine instead of mozjs. It would
be very nice to revive this work and hopefully bring it upstream.
Indeed, ducktape is 2 orders of magnitude smaller than mozjs I believe.

> $ file build/buildroot-fs/ext2/target/usr/{bin/js60,lib/libmozjs-60.so}
> build/buildroot-fs/ext2/target/usr/bin/js60:           ELF 64-bit LSB
> executable, x86-64, version 1 (GNU/Linux), dynamically linked,
> interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 4.14.0,
> BuildID[sha1]=93295e8e66ae075577bc76110d7a81fc3f9b6359, stripped
> build/buildroot-fs/ext2/target/usr/lib/libmozjs-60.so: ELF 64-bit LSB
> shared object, x86-64, version 1 (GNU/Linux), dynamically linked,
> BuildID[sha1]=2cda65c78b09727e5ee4ac481f8847ca07953cc9, stripped
> $ du -hc build/buildroot-fs/ext2/target/usr/{bin/js60,lib/libmozjs-60.so}
> 23M    build/buildroot-fs/ext2/target/usr/bin/js60

Is this binary dynamically linked against libmozjs, or statically
linked against it? The fact that it has the same size as libmozjs makes
me think it might be statically linked against it.

> 23M    build/buildroot-fs/ext2/target/usr/lib/libmozjs-60.so

Best regards,

Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering

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