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Date: Mon, 14 Mar 2022 13:36:22 -0700
From: enh <enh@...gle.com>
To: musl@...ts.openwall.com
Subject: Re: Summary of open items at 1.2.3 release time
On Tue, Mar 8, 2022 at 2:54 PM Rich Felker <dalias@...c.org> wrote:
> I'm trying to wrap up a way-overdue release, and there are some known
> things I wanted to get done in this cycle that just need to be put
> off:
>
> - mntent fix: At least as I remember the state of things, there's no
> fix patch that's been written and tested that's not making
> additional possibly- (likely-) unwanted behavioral changes.
>
> - pthread_barrier_wait: It seems something is seriously wrong and I
> (or someone else, but this is probably best for me to do) need to
> sit down and work out the sequencing logic and figure out what's
> wrong. The result might entail a redesign and rewrite, so I don't
> think we can hold things up with this. I should probably drop use of
> it in musl (all uses can be replaced by simpler primitives) but I'd
> rather do that after release too.
>
> - ld-musl....path file location logic: There's a patch for this I
> haven't reviewed. It's a low-impact issue so I'll look after
> release.
>
> - ASM source file conversions to inline asm: I'm not sure of the
> status on this; it was in progress but not ready for merge before.
>
> - Some mess in x32 sys/user.h: A bunch of members are 32-bit and some
> (maybe all) need to be 64-bit?
>
> - Some RPATH $ORIGIN failure cases: I need to review this again.
>
> - Request for preadv2/pwritev2: No follow-up getting info on whether
> or how glibc exposes them.
>
from https://man7.org/linux/man-pages/man2/writev.2.html:
preadv2() and pwritev2() first appeared in Linux 4.6. Library
support was added in glibc 2.26.
(we recently added them to bionic too.)
- CMSG_* warning mess: We may want to finally act on this since it
> keeps tripping people up, but I don't want to do a hasty change and
> risk introducing a bug at release time. Let's look at this later.
>
> - NFTW_CHDIR support: This is probably ok but I haven't reviewed it.
> Hope to merge after release.
>
> - nscd querying when the daemon is disabled for some query types: IIRC
> this had really problematic behavior we don't understand well still
> on the nscd side that might mean we're doing things wrong or that
> there's no way to do things right. Needs investigation before any
> action.
>
> - Glob altdirfunc stuff and related changes: I don't remember if the
> UB was all resolved; if so this may be acceptable to merge.
>
> - _SC_NPROCESSORS_CONF: Need to review where this is at.
>
> - Improvements to qsort: These were put off pending qsort_r, which is
> done now, so it may be appropriate to fix up and merge these.
>
> And some things that were open but approved for merge or trivial, that
> I'm fixing now:
>
> - Zeroing canary byte to avoid leaking it via string functions
> - Avoid runtime conversions of floating-point constants
> - __WORDSIZE inconsistency on x32
> - Linux uapi additions
> - nice EACCES/EPERM issue
>
> All in all, the above list turned out to be a lot more extensive than
> I expected, and this really highlights the need for an issue
> tracker...
>
> Please reply to add anything I may have missed. If you have follow-up
> on any of the actual items, though, maybe hold off for a few days
> until I can actually get a release out and have mental space to deal
> with new stuff. :-)
>
> Rich
>
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