Carsten,

All the embarrassings you are talking about just does not exist :)

Current Tizen pkg build is self-hosted, both ARM and IA, both 32bit and
64bit.

Current problem we are talking about is the developers' working distro, not
the Tizen runtime:)

thanks
- jf.ding


On Mon, Sep 23, 2013 at 06:23:37PM +0900, Carsten Haitzler wrote:
> On Mon, 23 Sep 2013 08:28:06 +0300 Leon Anavi <[email protected]> said:
> 
> > Hi Daniel, Carsten, All,
> > 
> > On 2013-09-23 03:46, Daniel Juyung Seo wrote:
> > > On Mon, Sep 23, 2013 at 8:53 AM, Carsten Haitzler
> > >> imagine if all the engineers and executives etc. at bmw drove fords
> > >> because
> > >> "bmw's can't manage to get us to the office without breaking down".
> > > 
> > > Awesome analogy.
> > > 
> > > I am also against dropping 32 bit system support for dev tools.
> > > 
> > > I bet many people I know use 32 bit system yet.
> > > 
> > 
> > The example with the cars is nice but I don't think it's very 
> > appropriate. In my opinion it is fine to drop 32-bit support although I 
> > still keep 32-bit distributions on some of my older computers.
> > 
> > Today nobody uses 16-bit OS for development of Tizen and in long term I 
> > don't expect anybody to be using 32-bit. So dropping 32-bit support is 
> > just a matter of time. Almost all of the CPU for personal computers 
> > produced in the last 5 years are with 64-bit instruction sets. The 
> > majority of developers (including me) that still have 32-bit OS on some 
> > computers actually have a compatible 64-bit hardware and just have to 
> > replace the OS and the dev environment with a 64-bit version.
> 
> 64bit os's come with a major cost in memory footprint for pointers... it's
> quite measurable. and that doesn't change the fact that:
> 
> 1. arm is STILL 32bit and will be for a long time still. if tizen can't be 
> built
> ON an arm platform (which is 32bit) then it can't self-host on arm... which is
> embarrassing.
> 2. reality is that on x86 we likely might support 32bit tizen simply due to 
> the
> memory footprint issues, and there is still x32 which is 32bit address space
> WITH 64bit instructions for max perf and best footprint. if we can't work on
> x32 or ix86 we can't self host. embarrassing.
> 3. you do know that intel mobile chips (for tablets/phones) are not 64bit
> still (i thought baytrail may support 64bit in at least some configs, but
> older ones... no 64bit, and baytrail devices as best i know are still not
> shipping as of today)... :) again - if we can't self host on these...
> embarrassing.
> 
> :)
> 
> > Best regards,
> > Leon
> 
> 
> -- 
> Carsten Haitzler (The Rasterman) <[email protected]>
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