[OSUNIX-dev] Re: Porting open64 to solaris

[Rayson Ho]

On Tue, Jan 27, 2009 at 4:43 PM, "C. Bergström"
<cbergstrom at netsyncro.com> wrote:
> Current patches and status are here
> http://bugs.osunix.org/browse/OSUNIX-44

Chris, that's really good progress... And BTW, I took a very quick
look at the open64-solaris6.diff patch -- is it all that's needed to
get the open64 compiler binary?


> It's not done and I think there's a few sticky points left.. For example the
> building of gnu ld.. and also the gnu as + gcc being needed for 64bit code..

Not sure when exactly GNU as & ld are needed... If you can get Open64
to translate C code into assembly language code, then the port should
be "done" -- as the assemble step and the link step are almost
idential to those of gcc on Solaris.

And gas & ld should "just" work on Solaris, since the AMD64 ELF ABI is
same on Solaris AMD64 and Linux AMD64 (and IIRC, FreeBSD ELF on
AMD64). In fact, a few months ago I did the experiment of generating
object files on Linux and linking them on Solaris.

I googled for gcc solaris m64 amd64, there are some minor gcc build
problems on Solaris, but none of them fatal.

Even more interesting is that someone tried to bootstrap gcc to get a
64-bit gcc binary:

http://gcc.gnu.org/ml/gcc-help/2008-12/msg00196.html


> Anyway.. if anyone wants to take a quick look at the patch, give a quick tip
> or helping hand we'd most appreciate it.

While I have experience with porting compilers, I have never ported
linkers and assemblers. However, I am happy to look at it if we can
break down the Open64 Solaris port into manageable work items :-P

Rayson


>
> Cheers,
>
> ./Christopher
>
>
> OSUNIX - Community based OpenSolaris
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>