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From: Tom Tromey <tom@tromey.com>
To: Yao Qi <qiyaoltc@gmail.com>
Cc: Simon Marchi <simon.marchi@polymtl.ca>,
	 Tom Tromey <tom@tromey.com>,
	 gdb-patches@sourceware.org
Subject: Re: [RFA 4/8] Make strip_bg_char return a unique_xmalloc_ptr
Date: Wed, 18 Oct 2017 03:32:00 -0000	[thread overview]
Message-ID: <87o9p5rv0h.fsf@tromey.com> (raw)
In-Reply-To: <867evuvxug.fsf@gmail.com> (Yao Qi's message of "Tue, 17 Oct 2017	12:05:11 +0100")

>>>>> "Yao" == Yao Qi <qiyaoltc@gmail.com> writes:

Yao> Yes, that is one approach I though of, but it needs changing code.  I am
Yao> looking at running gdb testsuite with valgrind, but there are too many
Yao> warnings on leak, so it is not that useful to find new leaks.

That sounds pretty bad.
A valgrind or ASAN buildbot would be good...

Yao> The patch is the good direction to go, so I don't want to block it.
Yao> Meanwhile, I am still looking at memory leaks reported by valgrind.

I don't know if the cleanup checker still works, but that would be one
route.  I don't believe there are all that many dangling cleanups any
more, but I do agree that it's hard to know.

It's maybe worth pointing out that, at least in the past (I didn't look
recently), commands were always run with a cleanup installed, and this
cleanup was run after the command returned.  So, before the cleanup
checker work, it was normal to see dangling cleanups in command
implementations.  If this still exists then I think it would reduce the
risk of changing strip_bg_char.

Tom

  reply	other threads:[~2017-10-18  3:32 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-13 21:00 [RFA 0/8] Constify many commands Tom Tromey
2017-10-13 21:00 ` [RFA 2/8] Constify add_com_suppress_notification Tom Tromey
2017-10-16  9:03   ` Yao Qi
2017-10-16 15:55     ` Tom Tromey
2017-10-13 21:00 ` [RFA 8/8] Constify add_com Tom Tromey
2017-10-16  9:59   ` Yao Qi
2017-10-13 21:00 ` [RFA 6/8] Remove cleanup from backtrace_command Tom Tromey
2017-10-16  9:46   ` Yao Qi
2017-10-13 21:00 ` [RFA 1/8] Constify add_abbrev_prefix_cmd Tom Tromey
2017-10-16  9:02   ` Yao Qi
2017-10-16 15:54     ` Tom Tromey
2017-10-16 20:23       ` Yao Qi
2017-10-13 21:00 ` [RFA 7/8] Add truncate_repeat_arguments function Tom Tromey
2017-10-14  4:49   ` Tom Tromey
2017-10-16  3:07     ` Tom Tromey
2017-10-16  9:53       ` Yao Qi
2017-10-18  3:48         ` Tom Tromey
2017-11-06 16:38           ` Tom Tromey
2017-11-07 14:35           ` Pedro Alves
2017-10-13 21:00 ` [RFA 5/8] Constify add_path and friends Tom Tromey
2017-10-16  9:35   ` Yao Qi
2017-10-13 21:00 ` [RFA 4/8] Make strip_bg_char return a unique_xmalloc_ptr Tom Tromey
2017-10-16  9:33   ` Yao Qi
2017-10-16 18:37     ` Simon Marchi
2017-10-17 11:05       ` Yao Qi
2017-10-18  3:32         ` Tom Tromey [this message]
2017-10-18  9:37     ` Pedro Alves
2017-11-06 16:33       ` Tom Tromey
2017-10-13 21:00 ` [RFA 3/8] Make set_cmd_cfunc private Tom Tromey
2017-10-16  9:20   ` Yao Qi

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