Date: Wed, 4 Sep 2024 16:43:31 -0700 From: Jacques Fourie <jacques.fourie@gmail.com> To: Konstantin Belousov <kostikbel@gmail.com> Cc: Cy Schubert <Cy.Schubert@cschubert.com>, Jan Knepper <jan@digitaldaemon.com>, Mark Delany <x9k@charlie.emu.st>, freebsd-hackers@freebsd.org Subject: Re: Rust: kernel vs user-space Message-ID: <CALX0vxCq0hVocahyoe_wk7NG2nF55T2ue7enUR33sPZHtKnqUw@mail.gmail.com> In-Reply-To: <Ztjh773c6Rwo6BTQ@kib.kiev.ua> References: <0.2.0-final-1725440949.866-0xb4bb20@qmda.emu.st> <78BC157F-6E30-49C4-931D-9EB539BD0322@digitaldaemon.com> <20240904221522.63E0366@slippy.cwsent.com> <Ztjh773c6Rwo6BTQ@kib.kiev.ua>
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[-- Attachment #1 --] On Wed, Sep 4, 2024 at 3:41 PM Konstantin Belousov <kostikbel@gmail.com> wrote: > On Wed, Sep 04, 2024 at 03:15:22PM -0700, Cy Schubert wrote: > > In message <78BC157F-6E30-49C4-931D-9EB539BD0322@digitaldaemon.com>, > Jan > > Kneppe > > r writes: > > > D > > > > > > www.dlang.org > > > > The problem with D is data structure definitions need to also be > mirrored > > (duplicated) in D. For example, when 64-bit inodes were implemented D > > failed to build and generate any code. The reason for this was > > ufs/ufs/inode.h now defined 64-bit inodes while the D representation as > > provided by the D language were still 32-bit. I had opened an issue with > > upstream regarding this. To this day they still haven't figured out how > to > > implement 64-bit inodes on newer FreeBSD systems while maintaining > 32-bit > > inode backward compatibility on older FreeBSD systems (as FreeBSD > > implemented this using ifunc). > > Rust is same. It still uses pre-ino64 bindings for both stdlib and libc. > Looking at the Rust libc bindings I see the following: https://github.com/rust-lang/libc/blob/72c40004a3568849055c0bab5c92c9975b4eb132/src/unix/bsd/freebsdlike/freebsd/freebsd11/mod.rs#L8 https://github.com/rust-lang/libc/blob/72c40004a3568849055c0bab5c92c9975b4eb132/src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs#L5 Seems to have changed to 64 bit for FreeBSD 12 and up? [-- Attachment #2 --] <div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Sep 4, 2024 at 3:41 PM Konstantin Belousov <<a href="mailto:kostikbel@gmail.com">kostikbel@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">On Wed, Sep 04, 2024 at 03:15:22PM -0700, Cy Schubert wrote:<br> > In message <<a href="mailto:78BC157F-6E30-49C4-931D-9EB539BD0322@digitaldaemon.com" target="_blank">78BC157F-6E30-49C4-931D-9EB539BD0322@digitaldaemon.com</a>>, Jan <br> > Kneppe<br> > r writes:<br> > > D<br> > ><br> > > <a href="http://www.dlang.org" rel="noreferrer" target="_blank">www.dlang.org</a><br> > <br> > The problem with D is data structure definitions need to also be mirrored <br> > (duplicated) in D. For example, when 64-bit inodes were implemented D <br> > failed to build and generate any code. The reason for this was <br> > ufs/ufs/inode.h now defined 64-bit inodes while the D representation as <br> > provided by the D language were still 32-bit. I had opened an issue with <br> > upstream regarding this. To this day they still haven't figured out how to <br> > implement 64-bit inodes on newer FreeBSD systems while maintaining 32-bit <br> > inode backward compatibility on older FreeBSD systems (as FreeBSD <br> > implemented this using ifunc).<br> <br> Rust is same. It still uses pre-ino64 bindings for both stdlib and libc.<br></blockquote><div><br></div><div>Looking at the Rust libc bindings I see the following:</div><div><a href="https://github.com/rust-lang/libc/blob/72c40004a3568849055c0bab5c92c9975b4eb132/src/unix/bsd/freebsdlike/freebsd/freebsd11/mod.rs#L8">https://github.com/rust-lang/libc/blob/72c40004a3568849055c0bab5c92c9975b4eb132/src/unix/bsd/freebsdlike/freebsd/freebsd11/mod.rs#L8</a></div><div><a href="https://github.com/rust-lang/libc/blob/72c40004a3568849055c0bab5c92c9975b4eb132/src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs#L5">https://github.com/rust-lang/libc/blob/72c40004a3568849055c0bab5c92c9975b4eb132/src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs#L5</a></div><div><br></div><div>Seems to have changed to 64 bit for FreeBSD 12 and up? <br></div></div></div>
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