linux support for new target

[Jeff Johnston]

santosh tatoju wrote:
> hi ,
>
>  I want my newlib to support linux os for new target, could you please provide me the necessary  steps to do that
>
>
> thanks inadvance
>
> Santosh
>
>
>       Bollywood news, movie reviews, film trailers and more! Go to http://in.movies.yahoo.com/
>   
Hell Santosh,

There is currently the libc/sys/linux directory which supports 
x86-linux.  In theory, one should be able to modify the machine 
directories there (e.g. libc/sys/linux/machine and 
libc/sys/linux/linuxthreads/machine) and add the various 
platform-specific directories that contain the functionality that is in 
i386.  For example, there are macros that are used for syscalls.  After 
that, there might be some x86-isms that have worked their way into the 
shared header or source files, but you won't know until you start the 
effort and we can work to separate the machine-dependent stuff out.  You 
would then have to update the top-level newlib/configure.host file to 
allow the XXXX-linux target to work.  If this is a totally new platform, 
then you will have to add some more stuff as you would for a normal 
newlib port (e.g. add setjmp/longjmp assembler code).

-- Jeff J.