From: Alexander Smundak <asmundak@google.com>
To: Tom Tromey <tromey@redhat.com>
Cc: Eli Zaretskii <eliz@gnu.org>, gdb-patches <gdb-patches@sourceware.org>
Subject: Re: [PATCH] Add Frame.read_register to Python API
Date: Wed, 18 Jun 2014 17:18:00 -0000 [thread overview]
Message-ID: <CAHQ51u59HNGwF3VDGWoffRA5PmN5hReVo+-r_sx1ALfnQXCgvQ@mail.gmail.com> (raw)
In-Reply-To: <CAHQ51u71A-sBCW_em68nHsFTXmHZCsYudKYtZm8MfC=rTGGAOg@mail.gmail.com>
Ping.
On Wed, Jun 11, 2014 at 4:52 PM, Alexander Smundak <asmundak@google.com> wrote:
>> Alexander> def __init__(self, fobj):
>> Alexander> super(InlinedFrameDecorator, self).__init__(fobj)
>> Alexander> + self.fobj = fobj
>>
>> Alexander> def function(self):
>> Alexander> - frame = fobj.inferior_frame()
>> Alexander> + frame = self.fobj.inferior_frame()
>> Alexander> name = str(frame.name())
>>
>> I think this is a nice fix but it seems unrelated to the patch at hand.
>>
>> Alexander> @defun Frame.find_sal ()
>> Alexander> -Return the frame's symtab and line object.
>> Alexander> +Return the frame's @code{gdb.Symtab_and_line} object.
>>
>> Likewise.
>
> Should I mail these two as a single patch or as two separate patches?
>
>> Alexander> + FRAPY_REQUIRE_VALID (self, frame);
>> Alexander> + if (!PyArg_ParseTuple (args, "i", ®num))
>> Alexander> + {
>> Alexander> + const char *regnum_str;
>> Alexander> + PyErr_Clear(); /* Clear PyArg_ParseTuple failure above. */
>> Alexander> + if (PyArg_ParseTuple (args, "s", ®num_str))
>> Alexander> + {
>> Alexander> + regnum = user_reg_map_name_to_regnum (get_frame_arch (frame),
>> Alexander> + regnum_str,
>> Alexander> + strlen (regnum_str));
>> Alexander> + }
>> Alexander> + }
>>
>> I tend to think this would be clearer if the arguments were only parsed
>> once and then explicit type checks were applied to the resulting object.
>
> Did that, and then started doubting whether it is really necessary to read
> a register by its (very arch-specific) number. The new version supports
> reading the register by the name. Another change is that it now throws
> an exception if the name is wrong.
>
>> Alexander> +# On x86-64, PC is register 16.
>> Alexander> +gdb_test "python print ('result = %s' % ((f0.architecture().name() != 'i386:x86-64') or f0.read_register('pc') == f0.read_register(16)))" \
>> Alexander> + "True" \
>> Alexander> + "test Frame.read_register(regnum)"
>>
>> A test that is arch-specific needs to be conditionalized somehow.
> IMHO it's borderline arch-specific -- it is runnable on any platform,
> although it will not be testing much on any but x86-64. There hasn't
> been any arch-specific tests for Python so far, so I am not sure what to do.
>
> Here's the new version (style violations have been addressed, too):
>
> The ability to read registers is needed to use Frame Filter API to
> display the frames created by JIT compilers.
>
> gdb/Changelog
> 2014-06-11 Sasha Smundak <asmundak@google.com>
>
> * python/py-frame.c (frapy_read_register): New function.
>
> 2014-06-11 Sasha Smundak <asmundak@google.com>
>
> * python.texi (Frames in Python): Add read_register description.
>
> 2014-06-11 Sasha Smundak <asmundak@google.com>
>
> * gdb.python/py-frame.exp: Test Frame.read_register.
next prev parent reply other threads:[~2014-06-18 17:18 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-09 19:15 Alexander Smundak
2014-06-09 19:26 ` Eli Zaretskii
2014-06-09 21:16 ` Alexander Smundak
2014-06-11 19:11 ` Tom Tromey
2014-06-11 23:52 ` Alexander Smundak
2014-06-18 17:18 ` Alexander Smundak [this message]
2014-06-18 17:33 ` Eli Zaretskii
2014-06-23 22:46 ` Alexander Smundak
2014-06-30 16:22 ` Alexander Smundak
2014-07-07 20:59 ` Alexander Smundak
2014-07-14 16:24 ` Alexander Smundak
2014-07-24 17:45 ` Doug Evans
2014-07-31 18:53 ` Doug Evans
2014-07-31 20:05 ` Tom Tromey
2014-08-21 18:44 ` Doug Evans
2014-08-26 20:31 ` Alexander Smundak
2014-08-29 13:39 ` Doug Evans
2014-08-29 23:32 ` Sasha Smundak
2014-08-29 23:36 ` Doug Evans
2014-09-03 23:46 ` Doug Evans
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=CAHQ51u59HNGwF3VDGWoffRA5PmN5hReVo+-r_sx1ALfnQXCgvQ@mail.gmail.com \
--to=asmundak@google.com \
--cc=eliz@gnu.org \
--cc=gdb-patches@sourceware.org \
--cc=tromey@redhat.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).