blob: b413ce40a58ba71abff26f49057d7205b7f240e2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
Title: Upgrade to =sys-libs/uclibc-ng-1.0.22
Author: Anthony G. Basile <blueness@gentoo.org>
Content-Type: text/plain
Posted: 2017-02-10
Revision: 1
News-Item-Format: 1.0
Display-If-Installed: sys-libs/uclibc-ng
Display-If-Profile: default/linux/uclibc/amd64
Display-If-Profile: hardened/linux/uclibc/amd64
Display-If-Profile: default/linux/uclibc/arm/armv7a
Display-If-Profile: hardened/linux/uclibc/arm/armv7a
Display-If-Profile: default/linux/uclibc/mips
Display-If-Profile: hardened/linux/uclibc/mips
Display-If-Profile: default/linux/uclibc/mips/mipsel
Display-If-Profile: hardened/linux/uclibc/mips/mipsel
Display-If-Profile: default/linux/uclibc/ppc
Display-If-Profile: hardened/linux/uclibc/ppc
Display-If-Profile: default/linux/uclibc/x86
Display-If-Profile: hardened/linux/uclibc/x86
There have been two major changes in uclibc-ng which need special
attention when upgrading. Version 1.0.19 restructured the breakout
libraries, libcrypt.so.0, libdl.so.0, and friends. The functions in
those libraries are now included in libuClibc-0.1.0.19.so. Version
1.0.21 and above removed libc support for obstack, expecting packages to
use their bundled GNU lib code. Both changes require special upgrade
procedures which we outline below:
0. Because of changes in the library structure in previous versions,
make sure you are working with 1.0.19 and rebuild world using
emerge -e @world
This will make sure all the executables link directly against libc.so.0
(as reported by `readelf -d`) rather than via symlinks like libdl.so.0
-> libc.so.0. Then upgrade from 1.0.19 to 1.0.20 without symlink-compat:
USE="-symlink-compat" emerge =sys-libs/uclibc-ng-1.0.20
1. Get rid of the obstack.h header since it's used by configure scripts
to look for function prototypes and macros.
mv /usr/include/obstack.h ~
2. We also need to force the use of any bundled gnu lib code. We can do
this by removing the definition of _GNU_OBSTACK_INTERFACE_VERSION from
gnu-version.h
cp /usr/include/gnu-versions.h ~
sed -i -e '/#define _GNU_OBSTACK/d' /usr/include/gnu-versions.h
3. We need to tell stdio.h that __UCLIBC_HAS_OBSTACK__ is false. We do
this via the uClibc_config.h file.
cp /usr/include/bits/uClibc_config.h ~
sed -i -e '/__UCLIBC_HAS_OBSTACK__/ s/1/0/' \
/usr/include/bits/uClibc_config.h
4. To be safe, you may want to back up your entire /lib directory so
you can fall back should something go wrong:
cp -a /lib /lib.bak
5. Now when we rebuild @world, all packages will use their bundled
obstack code rather than depending on libc to provide it.
ac_cv_func_obstack_vprintf=no emerge --keep-going --exclude \
sys-libs/uclibc-ng -e @world
6. Finally update uclibc-ng to the latest
emerge =sys-libs/uclibc-ng-1.0.22
7. For good measure, rebuild the entire system
emerge —e @world
|
