Date: Mon, 09 Oct 2017 16:19:51 -0700 From: John Baldwin <jhb@freebsd.org> To: freebsd-arch@freebsd.org Cc: Warner Losh <imp@bsdimp.com>, Ian Lepore <ian@freebsd.org>, "freebsd-arch@freebsd.org" <arch@freebsd.org>, Dimitry Andric <dim@freebsd.org> Subject: Re: deorbiting /usr/lib/libstand.a, moving to sysboot Message-ID: <1838629.1fOj0Hxk8Q@ralph.baldwin.cx> In-Reply-To: <CANCZdfp3o7ymPY=NxSa2Cs4-wM0PvLq7=2aW8ud8S0EhC3%2B-4g@mail.gmail.com> References: <CANCZdfrvD04cL3A1J3nKZ2uFNNkOrcVnMvobdoyXkRGx8VK8Vg@mail.gmail.com> <1507565759.77958.7.camel@freebsd.org> <CANCZdfp3o7ymPY=NxSa2Cs4-wM0PvLq7=2aW8ud8S0EhC3%2B-4g@mail.gmail.com>
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On Monday, October 09, 2017 10:21:53 AM Warner Losh wrote: > On Mon, Oct 9, 2017 at 10:15 AM, Ian Lepore <ian@freebsd.org> wrote: > > > On Mon, 2017-10-09 at 10:09 -0600, Warner Losh wrote: > > > On Mon, Oct 9, 2017 at 10:04 AM, Ian Lepore <ian@freebsd.org> wrote: > > > > > > > > > > > On Mon, 2017-10-09 at 17:57 +0200, Dimitry Andric wrote: > > > > > > > > > > On 9 Oct 2017, at 07:45, Warner Losh <imp@bsdimp.com> wrote: > > > > > > > > > > > > > > > > > > > > > > > > I'd like to deorbit /usr/lib/stand.a and /usr/include/stand.h. > > These > > > > are > > > > > > > > > > > > > > > > > really parts of the boot loader with an unstable API and shouldn't > > be > > > > > > installed into the system. It's really a private library to the > > boot > > > > loader. > > > > > > > > > > Though I completely agree with this, I am still interested in the > > > > > historical reasons for separating out this library for general > > userland > > > > > consumption. Were there any other parts of world that happened to > > use > > > > > libstand? > > > > > > > > > > -Dimitry > > > > > > > > > There are out-of-tree users of libstand. Perhaps not many, but a > > > > couple times after doing something to libstand I've received emails > > > > from people that thanked me for the enhancement and mentioned some non- > > > > loader(8) use of the lib in passing. (Unfortunately, I can't find any > > > > of those mails now, they were from 2-3 years ago.) > > > > > > > They can email me and I'll help them convert over... :) > > > > > > Warner > > > > Actually, I got distracted, then came back and hit Send too soon. I > > meant to ask "Will the library still be accessible to out of tree > > users?", so that adjusting to the change will amount to fixing some > > build breakage to adjust to a new location? > > > > The proposal is to take it 100% internal and officially not support its use > outside the loader. > > It's open source, so if you really want to use it, you can with some > effort. If there's one or two people, they can adjust. If there's lots, > then I can revisit the proposal. It would help to know who they were and > what, exactly, they used it for. Note that one wrinkle is that libstand pulls in source bits from libc. Historically it's been possible to checkout just sys/ and build sys/boot if you had a matching world because libstand would be installed. This will now require a full world checkout. That's probably not the end of the world (and it is debatable if 'boot' even belongs in sys/ vs being a separate top-level dir in the source tree). In general we try to make sys/ (for the kernel) be self-contained and this would kind of break that, though I think I'd be happy moving boot out of sys/ altogether to restore that convention. -- John Baldwin
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