Hello,

On 12/11/2012 04:50 PM, Rohit Pathania wrote:
> Hi Peter,
>    No I havn't stripped out anything. I was comparing glibc with another 
> libraries because most of website n blogs, I have seen it is wriiten that 
> glibc is slow, bloated and big in size. So thatz what I was thinking why it 
> is decision to take in Tizen.
> What makes it better than other so it is included in Tizen.
> Why it is better than bionic of Android?

some quick googling will turn up:
http://codingrelic.geekhold.com/2008/11/six-million-dollar-libc.html

Also take a look at the CAVEATS and OVERVIEW file from the bionic
repository.

They have a number of reasons why bionic is smaller and might not be
suited for other systems running a more mainline Linux.

"The Bionic libc routines do not handle C++ exceptions. They neither
throw exceptions themselves, nor will they pass exceptions from a called
function back through to their caller. So for example, if the cmp()
routine passed to qsort() throws an exception the caller of qsort() will
not see it.

Support for C++ exceptions adds significant overhead to function calls,
even just to pass thrown exceptions back to the caller. As Android's
primary programming language is Java, which handles exceptions entirely
within the runtime package, the designers chose to omit the lower level
exception support. C++ code can still use exceptions internally, so long
as they do not cross a libc routine. In practice, it would be difficult
to actually guarantee that exceptions never try to transit a library
routine."

"The pthread implementation appears to be completely new and developed
by Google specifically for Android. It is, quite deliberately, not a
complete implementation of POSIX pthreads. It implements those features
necessary to support threads in the Dalvik JVM, and only selectively
thereafter."

"at the moment, several user-account-related functions like getpwd are
stubbed and return the values corresponding to root. this will be fixed
when we'll be able to have distinct users on the Android filesystem. :-("


Regards,
Daniel Willmann
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