[yocto] [meta-yocto][PATCH] poky-tiny: Use musl for default system C library

[Khem Raj]

> On Jan 8, 2016, at 1:21 AM, Burton, Ross <ross.burton at intel.com> wrote:
> 
> 
> On 8 January 2016 at 09:09, Burton, Ross <ross.burton at intel.com <mailto:ross.burton at intel.com>> wrote:
> For anyone else reading, I just gave this a test locally, and for context the previous poky-tiny was using a tuned glibc and the rootfs came in at 1.5M.
> 
> Finished my comparison builds:
> 
> musl:
> -rw-r--r-- 1 ross ross  731681 Jan  7 23:46 core-image-minimal-qemux86-20160107234351.rootfs.cpio.gz
> glibc:
> -rw-r--r-- 1 ross ross 1569610 Jan  8 00:01 core-image-minimal-qemux86-20160107235147.rootfs.cpio.gz
> uclibc:
> -rw-r--r-- 1 ross ross  669759 Jan  8 09:14 core-image-minimal-qemux86-20160108090512.rootfs.cpio.gz
> 
> So it's a slightly increase over uclibc, but by default poky-tiny uses glibc so this is a massive win.  In the greater scheme of things musl is trending to be worth the increase over uclibc too.
> 

Thanks Ross for this info. I think it will be interesting to know the sizes of packages contributing to image from buildhistory if you have it lying around.
musl has libpthread/libm etc. all bundled into single .so for simplicity reasons. I would like to get to bottom of the slight increase of musl over uclibc based system



> Ross

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