Date: Wed, 16 Aug 2017 17:38:47 +0000
From: bugzilla-noreply@freebsd.org
To: freebsd-bugs@FreeBSD.org
Subject: [Bug 194823] "bsdgrep -E { /dev/null" core dumps
Message-ID: <bug-194823-8-BKuMYBV1jQ@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-194823-8@https.bugs.freebsd.org/bugzilla/>
References: <bug-194823-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D194823 --- Comment #8 from commit-hook@freebsd.org --- A commit references this bug: Author: kevans Date: Wed Aug 16 17:38:38 UTC 2017 New revision: 322582 URL: https://svnweb.freebsd.org/changeset/base/322582 Log: MFC r317254: bsdgrep: add BSD_GREP_FASTMATCH knob for built-in fastmatch Bugs have been found in the fastmatch implementation as used in bsdgrep. Some have been fixed (r316495) while fixes for others are in review (D10098). In comparison with the fastmatch implementation, Kyle Evans found that: - regex(3)'s performance with literal expressions offers a speed improvement over fastmatch - regex(3)'s performance, both with simple BREs and EREs, seems to be comparable The regex implementation was imported in r226035, and the commit message reports: This is a temporary solution until the whole regex library is not replaced so that BSD grep development can continue and the backported code gets some review and testing. This change only improves scalability slightly, there is no big performance boost yet but several minor bugs have been found and fixed. Introduce a WITH_/WITHOUT_BSD_GREP_FASTMATCH knob to support testing of both approaches. Regenerate src.conf(5) as per the original commit PR: 175314, 194823 Approved by: emaste (mentor, blanket MFC) Changes: _U stable/11/ stable/11/share/man/man5/src.conf.5 stable/11/share/mk/src.opts.mk stable/11/tools/build/options/WITHOUT_BSD_GREP_FASTMATCH stable/11/usr.bin/grep/Makefile stable/11/usr.bin/grep/grep.c stable/11/usr.bin/grep/grep.h stable/11/usr.bin/grep/util.c --=20 You are receiving this mail because: You are the assignee for the bug.=
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