From: Gary Benson <gbenson@redhat.com>
To: gdb-patches@sourceware.org
Subject: [PATCH 0/2] Limit tab-completion result when list is large
Date: Wed, 12 Feb 2014 11:55:00 -0000 [thread overview]
Message-ID: <20140212115548.GA2866@blade.nx> (raw)
Hi all,
When debugging large programs, pressing the Tab key at the wrong
time causes GDB to lock up while it builds a completion list. As
an example, with LibreOffice:
$ gdb /usr/lib64/libreoffice/program/soffice.bin
(gdb) start
(gdb) p <Tab>
On my (pretty fast!) machine the user is left hanging for over a
minute while GDB builds a list of the 217667 things the user could
print. This is PR cli/11920.
PR cli/15548 proposes to abort building the completion list if it
grows too large, the theory being that nobody is going to scroll
through thousands of screens of completions to find the one they
want. These two patches implement this. The default limit is 1000
completions, which the user can override with a new set/show var.
Tested on RHEL6.5 x86_64, no regressions.
Thanks,
Gary
--
http://gbenson.net/
next reply other threads:[~2014-02-12 11:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-12 11:55 Gary Benson [this message]
2014-02-12 11:56 ` [PATCH 1/2] Add expansion_notify callback to expand_symtabs_matching Gary Benson
2014-02-12 20:10 ` Tom Tromey
2014-02-12 11:58 ` [PATCH 2/2] Implement completion limiting Gary Benson
2014-02-12 16:27 ` Eli Zaretskii
2014-02-12 16:41 ` Pedro Alves
2014-02-12 20:53 ` Gary Benson
2014-02-12 21:41 ` Pedro Alves
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