47 lines
2.2 KiB
Text
47 lines
2.2 KiB
Text
Title: Migration to sys-libs/uclibc-ng
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Author: Anthony G. Basile <blueness@gentoo.org>
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Content-Type: text/plain
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Posted: 2016-09-26
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Revision: 1
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News-Item-Format: 1.0
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Display-If-Installed: sys-libs/uclibc
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Display-If-Profile: default/linux/uclibc/amd64
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Display-If-Profile: hardened/linux/uclibc/amd64
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Display-If-Profile: default/linux/uclibc/arm/armv7a
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Display-If-Profile: hardened/linux/uclibc/arm/armv7a
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Display-If-Profile: default/linux/uclibc/mips
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Display-If-Profile: hardened/linux/uclibc/mips
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Display-If-Profile: default/linux/uclibc/mips/mipsel
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Display-If-Profile: hardened/linux/uclibc/mips/mipsel
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Display-If-Profile: default/linux/uclibc/ppc
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Display-If-Profile: hardened/linux/uclibc/ppc
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Display-If-Profile: default/linux/uclibc/x86
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Display-If-Profile: hardened/linux/uclibc/x86
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Upstream development of uClibc has been stalled since July 2015 and
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there hasn't been a proper release since May 2012 [1]. New patches
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addressing important issues have been submitted but these have not been
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reviewed nor have they been committed to the master branch. Also,
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backporting even those patches which have been committed to master is
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now impractical as too many intermediate layers of patches conflict.
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For all intents and purposes, upstream uClibc is dead.
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Fortunately, a fork called uClibc-ng [2] was begun by Waldemar Brodkorb
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in February 2015 and is actively being maintained. Accordingly,
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Gentoo's Hardened uClibc project will be migrating to uClibc-ng as its
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libc provider. Currently stage3 tarballs based on sys-libs/uclibc-ng
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are available for all supported arches at [3] and these will become the
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default after October 5, 2016. Older stage3s based on sys-libs/uclibc
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will be removed.
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Unfortunately, migrating a production system from uclibc to uclibc-ng
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is not straightforward owing to the central role played by libc. A
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migration guide is provided at [4]. This has been tested on live
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systems with success, but the user is cautioned to plan a backup and
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recovery plan should something go wrong.
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Refs.
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[1] https://git.uclibc.org/uClibc/log/
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[2] http://uclibc-ng.org/
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[3] http://distfiles.gentoo.org/experimental/
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[4] https://wiki.gentoo.org/wiki/Project:Hardened_uClibc#Migration_to_uClibc-ng
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