LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Greg KH <gregkh@linuxfoundation.org>
To: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Cc: Ignat Korchagin <ignat@cloudflare.com>,
	Ivan Babrou <ivan@cloudflare.com>,
	Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Josh Poimboeuf <jpoimboe@redhat.com>,
	Ingo Molnar <mingo@redhat.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
	kernel-team <kernel-team@cloudflare.com>
Subject: Re: Linux 4.19 and GCC 9
Date: Mon, 10 Jun 2019 16:48:58 +0200	[thread overview]
Message-ID: <20190610144858.GA1481@kroah.com> (raw)
In-Reply-To: <CANiq72kxyKV1z+dGmMtuq=gUWOYS=Y0EsNFqLKoFXWx6+n=J1g@mail.gmail.com>

On Mon, Jun 10, 2019 at 04:42:27PM +0200, Miguel Ojeda wrote:
> On Mon, Jun 10, 2019 at 4:21 PM Greg KH <gregkh@linuxfoundation.org> wrote:
> >
> > > I also checked that 4.19.49 compiles fine with GCC 9, although with a
> > > lot of warnings, mostly from objtool, like "warning: objtool:
> > > sock_register()+0xd: sibling call from callable instruction with
> > > modified stack frame". But it's a start.
> 
> I think Josh Poimboeuf added support for a few related things in GCC 8
> (e.g. 13810435b9a7 ("objtool: Support GCC 8's cold subfunctions")).

That commit is already in all stable releases, so does there need to be
a gcc 9 specific one?

> > I'll look into these after the next round of kernels are released.  I
> > guess I'll go find a distro that has gcc9 on it to actually test
> > things...
> 
> I typically compile a bare-bones GCC for those things, it is quite quick.

Pointers to how to do that is appreciated.  It's been years since I had
to build gcc "from scratch".

thanks,

greg k-h

  reply	other threads:[~2019-06-10 14:49 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CABWYdi06NUOWRLingNuybgZZsTZPjhmsOx-9oCGK94qZGYbzcw@mail.gmail.com>
     [not found] ` <CANiq72kvpiC-i53AXM-YsCUvWroHQemmqxsXjnB330ZEeHahUg@mail.gmail.com>
     [not found]   ` <CABWYdi1zhTTaN-GSgH0DnPfz7p=SRw0wts5QVYYVtfvoiS0qnQ@mail.gmail.com>
2019-05-16 21:20     ` Miguel Ojeda
2019-05-16 21:24       ` Ivan Babrou
2019-05-17  2:03       ` Josh Poimboeuf
2019-05-17  3:14         ` Ivan Babrou
2019-05-17  5:09           ` Greg KH
2019-05-17  7:38             ` Peter Zijlstra
2019-05-17  8:35               ` Miguel Ojeda
2019-05-17  8:51                 ` Greg KH
2019-05-17  9:01                   ` Miguel Ojeda
2019-05-17  9:23                     ` Greg KH
2019-05-17  9:27                       ` Miguel Ojeda
2019-05-17  9:42                         ` Greg KH
2019-05-17 11:52                           ` Greg KH
2019-05-17  9:48                     ` Greg KH
2019-05-17 15:22                     ` Arnaldo Carvalho de Melo
2019-05-17 17:23                       ` Ivan Babrou
2019-05-17 17:37                         ` Arnaldo Carvalho de Melo
2019-06-10  7:21                           ` Ivan Babrou
2019-06-10  7:45                             ` Greg KH
2019-06-10  9:32                               ` Ignat Korchagin
2019-06-10 14:21                                 ` Greg KH
2019-06-10 14:42                                   ` Miguel Ojeda
2019-06-10 14:48                                     ` Greg KH [this message]
2019-06-10 15:01                                       ` Ignat Korchagin
2019-06-10 15:04                                       ` Miguel Ojeda
2019-06-10 15:14                             ` Arnaldo Carvalho de Melo
2019-06-10 15:25                               ` Greg KH
2019-06-10 19:14                                 ` Arnaldo Carvalho de Melo
2019-06-24 10:42                                   ` Ignat Korchagin
2019-06-25  7:50                                     ` Greg KH
2019-06-25  8:08                                       ` Greg KH

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=20190610144858.GA1481@kroah.com \
    --to=gregkh@linuxfoundation.org \
    --cc=alexander.shishkin@linux.intel.com \
    --cc=arnaldo.melo@gmail.com \
    --cc=ignat@cloudflare.com \
    --cc=ivan@cloudflare.com \
    --cc=jolsa@redhat.com \
    --cc=jpoimboe@redhat.com \
    --cc=kernel-team@cloudflare.com \
    --cc=linux-kbuild@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=miguel.ojeda.sandonis@gmail.com \
    --cc=mingo@redhat.com \
    --cc=namhyung@kernel.org \
    --cc=peterz@infradead.org \
    --subject='Re: Linux 4.19 and GCC 9' \
    /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

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).