From: Gary Benson <gbenson@redhat.com>
To: gdb-patches@sourceware.org
Subject: [PATCH 0/3 v2] Limit tab-completion result when list is large
Date: Thu, 06 Nov 2014 10:50:00 -0000 [thread overview]
Message-ID: <1415271046-4957-1-git-send-email-gbenson@redhat.com> (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) b <Tab>
On my (pretty fast!) machine the user is left hanging for nearly a
minute while GDB builds a list of the 212405 places the user could
break on. 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 three patches implement this. The default limit is 200
completions, which the user can override with a new set/show option.
Tested on RHEL6.5 x86_64, no regressions.
Is this ok to commit?
Thanks,
Gary
--
http://gbenson.net/
next reply other threads:[~2014-11-06 10:50 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-06 10:50 Gary Benson [this message]
2014-11-06 10:51 ` [PATCH 2/3 v2] Interleave completion list building with symbol table expansion Gary Benson
2014-11-06 10:51 ` [PATCH 3/3 v2] Implement completion limiting Gary Benson
2014-11-06 16:28 ` Eli Zaretskii
2014-11-21 10:46 ` Gary Benson
2014-11-24 6:09 ` Doug Evans
2014-11-06 10:51 ` [PATCH 1/3 v2] Add expansion_notify callback to expand_symtabs_matching Gary Benson
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