From: "Richard W.M. Jones" <rjones@redhat.com>
To: Paul Steckler <Paul.Steckler@nicta.com.au>
Cc: "caml-list@yquem.inria.fr" <caml-list@yquem.inria.fr>
Subject: Re: Multi-threaded programs using MinGW x-compiler
Date: Mon, 24 May 2010 11:03:44 +0100 [thread overview]
Message-ID: <20100524100344.GA3351@amd.home.annexia.org> (raw)
In-Reply-To: <2EB36A07AAE8C44BBB1986425E7A22D00FF060AD0D@atp-mbx1.in.nicta.com.au>
On Mon, May 24, 2010 at 11:39:07AM +1000, Paul Steckler wrote:
> At least with the Fedora distribution of that compiler, there's a
> libthreadsnat.a, but it's missing some symbols. The source for that
> library assumes the availability of pthreads and Unix-style signals
> on the target. There is a pthreads library for MingGW, but there
> isn't a complete emulation of signals on Windows. So I think
> another approach is needed.
Likely what's happening here is the configure script that we run
(under Fedora of course) is detecting pthreads. We go through various
hoops to modify the output of the configure script to suite Windows
defaults, since the upstream configure script knows nothing about
cross-compilation. However we probably didn't adjust the threading
model, because I tend to avoid threads, and in any case this cross-
compiler was more of a technology demonstration than something you'd
necessarily want to use regularly.
The real solution is to get the changes we've already made upstream,
and get the upstream configure script to understand cross-compilation
properly (especially that sizeof(int) on the host != sizeof(int) on
the target).
This is a lot of work, and I don't have the time now, what with the
RHEL 6 crunch happening.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
libguestfs lets you edit virtual machines. Supports shell scripting,
bindings from many languages. http://et.redhat.com/~rjones/libguestfs/
See what it can do: http://et.redhat.com/~rjones/libguestfs/recipes.html
next prev parent reply other threads:[~2010-05-24 10:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-24 1:39 Paul Steckler
2010-05-24 10:03 ` Richard W.M. Jones [this message]
2010-05-24 12:22 ` [Caml-list] " Török Edwin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20100524100344.GA3351@amd.home.annexia.org \
--to=rjones@redhat.com \
--cc=Paul.Steckler@nicta.com.au \
--cc=caml-list@yquem.inria.fr \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).