From: Joel Brobecker <brobecker@adacore.com>
To: Stan Shebs <shebs@codesourcery.com>
Cc: "gdb-patches@sourceware.org" <gdb-patches@sourceware.org>,
David Taylor <dtaylor@emc.com>
Subject: Re: two agent expression nits (one line each)
Date: Sun, 23 Nov 2014 03:27:00 -0000 [thread overview]
Message-ID: <20141123032717.GA5774@adacore.com> (raw)
In-Reply-To: <14583.1410458050@usendtaylorx2l>
Hi Stan
Would you mind looking into this? David's comments seem reasonable,
but it would be nice to confirm that what we currently do is what
we had meant to do :-).
Thanks!
On Thu, Sep 11, 2014 at 01:54:10PM -0400, David Taylor wrote:
> In gdb/doc/agentexpr.texi you''ll find the text:
>
> @item @code{setv} (0x2d) @var{n}: @result{} @var{v}
> Set trace state variable number @var{n} to the value found on the top
> of the stack. The stack is unchanged, so that the value is readily
> available if the assignment is part of a larger expression. The
> handling of @var{n} is as described for @code{getv}.
>
> The @item line and the following text do no agree with one another. I'm
> guessing that the text is correct, in which case this line:
>
> @item @code{setv} (0x2d) @var{n}: @result{} @var{v}
>
> should be changed to this:
>
> @item @code{setv} (0x2d) @var{n}: @var{v} @result{} @var{v}
>
> Additionally, in gdb/common/ax.def we find the line:
>
> DEFOP (setv, 2, 0, 0, 1, 0x2d)
>
> >From the comment earlier in the file:
>
> Each line is of the form:
>
> DEFOP (name, size, data_size, consumed, produced, opcode)
> [...]
> CONSUMED is the number of stack elements consumed.
> PRODUCED is the number of stack elements produced.
>
> which is saying that nothing is consumed and one item is produced. Both
> should be 0 or both should be 1. Setting them both to 1 seems better
> since if nothing is on the stack an error will occur. So, it should be
> changed to:
>
> DEFOP (setv, 2, 0, 1, 1, 0x2d)
>
> David
--
Joel
next prev parent reply other threads:[~2014-11-23 3:27 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-11 17:54 David Taylor
2014-11-23 3:27 ` Joel Brobecker [this message]
2014-12-02 20:45 ` Stan Shebs
2014-12-13 13:44 ` Joel Brobecker
2014-12-15 15:41 ` David Taylor
2014-12-20 17:19 ` Joel Brobecker
2015-02-03 21:58 ` David Taylor
2015-02-11 7:49 ` Joel Brobecker
2015-02-11 17:28 ` Stan Shebs
2015-02-13 19:21 ` David Taylor
2015-02-20 3:05 ` pushed (master+branch): " Joel Brobecker
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=20141123032717.GA5774@adacore.com \
--to=brobecker@adacore.com \
--cc=dtaylor@emc.com \
--cc=gdb-patches@sourceware.org \
--cc=shebs@codesourcery.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).