From: "Maciej W. Rozycki" <macro@imgtec.com>
To: Pedro Alves <palves@redhat.com>
Cc: Alan Hayward <Alan.Hayward@arm.com>, Yao Qi <qiyaoltc@gmail.com>,
"gdb-patches@sourceware.org" <gdb-patches@sourceware.org>,
nd <nd@arm.com>
Subject: Re: [PATCH 3/11] Add MIPS_MAX_REGISTER_SIZE (4/4)
Date: Fri, 09 Jun 2017 11:48:00 -0000 [thread overview]
Message-ID: <alpine.DEB.2.00.1706091241470.21750@tp.orcam.me.uk> (raw)
In-Reply-To: <ebebb23e-e61b-5eff-b666-f2632e554322@redhat.com>
On Fri, 9 Jun 2017, Pedro Alves wrote:
> > I’ve avoided using variable-length arrays because it has the potential to
> > break the stack.
> > However, here we know that we aren’t going to get a value >8, so maybe in
> > this case a VLA would be ok?
> >
> > Anyone else have an opinion here?
>
> VLAs are not standard C++, unfortunately. Do we know whether all compilers
> we care about support them? It doesn't seem worth it to me to rely
> on compiler extensions when we know we're always going to see a size <=8.
Hmm, `alloca' then? It used to be used here actually, up till commit
d9d9c31f3130 ("MAX_REGISTER_RAW_SIZE -> MAX_REGISTER_SIZE"),
<https://sourceware.org/ml/gdb-patches/2003-05/msg00127.html>.
Maciej
next prev parent reply other threads:[~2017-06-09 11:48 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-04 10:12 [PATCH 3/11] Add MIPS_MAX_REGISTER_SIZE Alan Hayward
2017-04-04 17:19 ` John Baldwin
2017-04-05 10:27 ` Alan Hayward
2017-04-11 15:37 ` Yao Qi
2017-05-05 8:03 ` [PATCH 3/11] Add MIPS_MAX_REGISTER_SIZE (1/4) Alan Hayward
2017-05-05 21:44 ` Yao Qi
2017-05-05 8:04 ` [PATCH 3/11] Add MIPS_MAX_REGISTER_SIZE (3/4) Alan Hayward
2017-05-05 21:54 ` Yao Qi
2017-05-05 8:04 ` [PATCH 3/11] Add MIPS_MAX_REGISTER_SIZE (2/4) Alan Hayward
2017-05-05 19:51 ` John Baldwin
2017-05-12 8:53 ` Yao Qi
2017-05-16 11:16 ` Alan Hayward
2017-05-22 12:07 ` Yao Qi
2017-05-22 16:05 ` Alan Hayward
2017-05-22 17:15 ` Pedro Alves
2017-05-23 17:49 ` Alan Hayward
2017-05-23 18:30 ` Pedro Alves
2017-05-24 9:08 ` Alan Hayward
2017-05-24 9:20 ` Pedro Alves
2017-05-24 10:20 ` Alan Hayward
2017-05-24 11:07 ` Pedro Alves
2017-05-24 19:45 ` Alan Hayward
2017-05-25 10:46 ` Pedro Alves
2017-05-25 11:43 ` Yao Qi
2017-05-25 11:48 ` Pedro Alves
2017-05-26 8:54 ` Alan Hayward
2017-05-26 10:26 ` Pedro Alves
2017-05-26 15:30 ` Alan Hayward
2017-05-26 15:49 ` Pedro Alves
2017-05-26 16:18 ` Alan Hayward
2017-05-26 16:00 ` John Baldwin
2017-05-24 9:29 ` Pedro Alves
2017-05-05 8:04 ` [PATCH 3/11] Add MIPS_MAX_REGISTER_SIZE (4/4) Alan Hayward
2017-06-07 8:31 ` Alan Hayward
2017-06-08 20:27 ` Maciej W. Rozycki
2017-06-09 10:31 ` Alan Hayward
2017-06-09 11:03 ` Pedro Alves
2017-06-09 11:48 ` Maciej W. Rozycki [this message]
2017-06-09 12:05 ` Pedro Alves
2017-06-09 13:23 ` Maciej W. Rozycki
2017-06-09 14:29 ` Pedro Alves
2017-06-12 9:09 ` Alan Hayward
2017-06-12 18:11 ` Pedro Alves
2017-06-12 14:29 ` Maciej W. Rozycki
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=alpine.DEB.2.00.1706091241470.21750@tp.orcam.me.uk \
--to=macro@imgtec.com \
--cc=Alan.Hayward@arm.com \
--cc=gdb-patches@sourceware.org \
--cc=nd@arm.com \
--cc=palves@redhat.com \
--cc=qiyaoltc@gmail.com \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
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 read-only IMAP folder(s) and NNTP newsgroup(s).