From: Jonathan Wakely <jwakely@redhat.com>
To: Alexandre Oliva <oliva@adacore.com>
Cc: gcc Patches <gcc-patches@gcc.gnu.org>,
"libstdc++" <libstdc++@gcc.gnu.org>
Subject: Re: [PATCH] libstdc++-v3: check for openat
Date: Fri, 24 Jun 2022 12:03:31 +0100 [thread overview]
Message-ID: <CACb0b4nyjqwUTDrtzHH3N7J9H+sj8UFwCvcY4eMhNx_Qy=v-Rw@mail.gmail.com> (raw)
In-Reply-To: <or4k0b326o.fsf@lxoliva.fsfla.org>
On Thu, 23 Jun 2022 at 15:05, Alexandre Oliva <oliva@adacore.com> wrote:
>
> On Jun 23, 2022, Jonathan Wakely <jwakely@redhat.com> wrote:
>
> > On Thu, 23 Jun 2022 at 12:08, Alexandre Oliva <oliva@adacore.com> wrote:
> >>
> >> On Jun 22, 2022, Jonathan Wakely <jwakely@redhat.com> wrote:
> >>
> >> > There are other interactions between AT_CDCWD and ::openat not covered
> >> > by this patch. I this this also needs to check HAVE_OPENAT:
> >>
> >> Here's an updated version, tested with this additional change.
>
> > Did this improve your test results for directory iterators?
>
> 'fraid the bad results I posted earlier today had this patch in. I
Ah, but this patch only added the HAVE_OPENAT check to
src/filesystem/dir.cc not the similar code in src/c++17/fs_dir.cc
So it only affected std::experimental::filesystem and I would expect
the std::filesystem directory iterator tests to fail still.
Nevermind, I'm going to make a change that resolves it anyway.
> can't tell whether it improved anything because I didn't save earlier
> results to compare.
>
> > In the unlikely even that the target has ::unlinkat but not ::openat
>
> c++config.h on the target says:
>
> /* #undef _GLIBCXX_HAVE_UNLINKAT */
>
> Thanks for the concern,
>
> --
> Alexandre Oliva, happy hacker https://FSFLA.org/blogs/lxo/
> Free Software Activist GNU Toolchain Engineer
> Disinformation flourishes because many people care deeply about injustice
> but very few check the facts. Ask me about <https://stallmansupport.org>
>
next prev parent reply other threads:[~2022-06-24 11:03 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-22 6:41 Alexandre Oliva
2022-06-22 10:36 ` Jonathan Wakely
2022-06-23 4:41 ` Alexandre Oliva
2022-06-23 9:29 ` Jonathan Wakely
2022-06-23 11:08 ` Alexandre Oliva
2022-06-23 11:37 ` Jonathan Wakely
2022-06-23 14:05 ` Alexandre Oliva
2022-06-23 17:47 ` Jonathan Wakely
2022-06-27 12:00 ` Alexandre Oliva
2022-06-27 13:05 ` Alexandre Oliva
2022-06-27 13:32 ` Jonathan Wakely
2022-06-27 14:00 ` Jonathan Wakely
2022-06-27 15:56 ` Jonathan Wakely
2022-06-27 22:03 ` Alexandre Oliva
2022-06-28 8:36 ` Jonathan Wakely
2022-06-28 12:04 ` Alexandre Oliva
2022-06-28 13:12 ` Jonathan Wakely
2022-06-24 11:03 ` Jonathan Wakely [this message]
2022-06-27 9:49 ` Alexandre Oliva
2022-06-27 9:52 ` Jonathan Wakely
2022-06-24 2:34 ` Alexandre Oliva
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