JIT status

[FX]

Hi David, hi GCC team,

What is the current status of JIT in GCC ? It does not currently work on macOS, 
with a bug in libgccjit.so linkage. We can work around it with a hack of the 
Make-lang.in 
(https://raw.githubusercontent.com/Homebrew/formula-patches/e9e0ee09389a54cc4c8fe1c24ebca3cd765ed0ba/gcc/6.1.0-jit.patch)
 but it seems to me that a proper solution would be use --version-script only 
conditional, with a check for symver support, and check whether -soname or 
-install_name should be passed to create the shared library.

Homebrew (https://brew.sh) has been patching JIT support since GCC 6, and I’m 
considering simply dropping support for it when GCC 8 comes. Is there a chance 
I can this issue being fixed, or should I simply drop it?

Cheers,
FX

Re: JIT status

[Rainer Orth]

Hi FX,

> What is the current status of JIT in GCC ? It does not currently work on
> macOS, with a bug in libgccjit.so linkage. We can work around it with a
> hack of the Make-lang.in
> (https://raw.githubusercontent.com/Homebrew/formula-patches/e9e0ee09389a54cc4c8fe1c24ebca3cd765ed0ba/gcc/6.1.0-jit.patch)
> but it seems to me that a proper solution would be use --version-script
> only conditional, with a check for symver support, and check whether
> -soname or -install_name should be passed to create the shared library.

agreed ;-)  I've had similar problems on Solaris, see PR jit/84288 for
the details and an initial patch.

Rainer

-- 
-
Rainer Orth, Center for Biotechnology, Bielefeld University

Re: Google Summer of Code 2018: Call for mentors and ideas

[Martin Jambor]

Hi,

I am happy to announce that we were selected as a Google Summer of Code
2018 mentor organization.

At this point I am being asked to "invite mentors," so I will soon
invite all the people who have expressed interest in the January email
thread (or on IRC).

If anybody has an additional idea for a GSoC project, please share it
with us here and perhaps also add it to the Wiki page.

If anybody else thinks of being a mentor this year, please write me an
email, the sooner the better.  I suspect that a google account is
mandatory, though.

Any other ideas/comments/suggestions are also welcome.

Martin

Re: JIT status

[David Malcolm]

On Tue, 2018-02-13 at 11:56 +0100, FX wrote:
> Hi David, hi GCC team,
> 
> What is the current status of JIT in GCC ? It does not currently work
> on macOS, with a bug in libgccjit.so linkage. We can work around it
> with a hack of the Make-lang.in (https://raw.githubusercontent.com/Ho
> mebrew/formula-
> patches/e9e0ee09389a54cc4c8fe1c24ebca3cd765ed0ba/gcc/6.1.0-jit.patch)
> but it seems to me that a proper solution would be use --version-
> script only conditional, with a check for symver support, and check
> whether -soname or -install_name should be passed to create the
> shared library.
> 
> Homebrew (https://brew.sh) has been patching JIT support since GCC 6,
> and I’m considering simply dropping support for it when GCC 8 comes.
> Is there a chance I can this issue being fixed, or should I simply
> drop it?

I'd like to fix it, but I don't have access to a MacOS box.

Is there a machine I can SSH into in the GCC compile farm, or similar
public resource?

Re: JIT status

[FX]

> I'd like to fix it, but I don't have access to a MacOS box.
> 
> Is there a machine I can SSH into in the GCC compile farm, or similar
> public resource?

I’m happy to help, I can test stuff, etc. I can also provide (for limited 
amount of time) remote access to my own box, if you want. Let me know off-list 
what you need.

FX