[升级] prelink 更新至 0.3.2

KDE · 发表于 2004-10-3 12:04:47

用于加快大型程序启动。这是最新版本。安装后请运行：
prelink -afmR
请耐心等待，非常费时间。会有一些报错，目前未发现不良影响，但仍建议慎重使用。如果有重要库文件升级，或者安装大量软件包，请重新运行此命令。

http://www.magiclinux.org/people/kde/magic/rpms/midi.software/prelink-0.3.2-1mgc.i686.rpm

http://www.magiclinux.org/people/kde/magic/srpms/prelink-0.3.2-1mgc.src.rpm

KDE · 发表于 2004-10-3 13:21:20

[root@localhost ~]# prelink -a
prelink: /usr/bin/fbtv: Could not parse `/usr/bin/fbtv: error while loading shared libraries: liblirc_client.so.0: cannot open shared objectfile: No such file or directory'
prelink: /usr/bin/motv: Could not parse `/usr/bin/motv: error while loading shared libraries: liblirc_client.so.0: cannot open shared objectfile: No such file or directory'
prelink: /usr/bin/xawtv: Could not parse `/usr/bin/xawtv: error while loading shared libraries: liblirc_client.so.0: cannot open shared object file: No such file or directory'
prelink: /usr/lib/libdivxdecore.so.0: Not enough room to add .dynamic entry
prelink: /usr/bin/r++: Cannot prelink against non-PIC shared library /usr/lib/kde3/libkdevcppsupport.so
prelink: /usr/bin/kwave.kss: Cannot prelink against non-PIC shared library /usr/lib/libGL.so.1
prelink: /usr/bin/kpovmodeler: Cannot prelink against non-PIC shared library /usr/lib/libGL.so.1
prelink: /usr/bin/keuphoria.kss: Cannot prelink against non-PIC shared library /usr/lib/libGL.so.1
prelink: /usr/lib/libdivxencore.so.0: Not enough room to add .dynamic entry
prelink: /usr/X11R6/bin/glxinfo: Cannot prelink against non-PIC shared library /usr/lib/libGL.so.1
prelink: /usr/bin/ksolarwinds.kss: Cannot prelink against non-PIC shared library /usr/lib/libGL.so.1
prelink: /usr/bin/kfountain.kss: Cannot prelink against non-PIC shared library /usr/lib/libGL.so.1
prelink: /usr/bin/kflux.kss: Cannot prelink against non-PIC shared library /usr/lib/libGL.so.1
prelink: /usr/bin/kgravity.kss: Cannot prelink against non-PIC shared library /usr/lib/libGL.so.1
prelink: /usr/bin/pia: Cannot prelink against non-PIC shared library /usr/lib/libGL.so.1
prelink: /usr/bin/kspace.kss: Cannot prelink against non-PIC shared library /usr/lib/libGL.so.1

大家看看台湾翻译的 gentoo 手册关于 prelink 的部分。
http://www.gentoo.org.tw/doc/prelink-howto.xml
分析：
1. magic beta3 有些文件的确缺，否则就不会有那么多毁损的依赖关系。
2. 如果不支持编译参数－fPIC 的库不能 prelink。
但这些没有大碍。

KDE · 发表于 2004-10-3 14:13:23

一些说明(来自 man gcc)：

   -fpic
         Generate position-independent code (PIC) suitable for use in a
         shared library, if supported for the target machine.  Such code
         accesses all constant addresses through a global offset table
         (GOT).  The dynamic loader resolves the GOT entries when the pro-
         gram starts (the dynamic loader is not part of GCC; it is part of
         the operating system).  If the GOT size for the linked executable
         exceeds a machine-specific maximum size, you get an error message
         from the linker indicating that -fpic does not work; in that case,
         recompile with -fPIC instead.  (These maximums are 16k on the m88k,
         8k on the SPARC, and 32k on the m68k and RS/6000.  The 386 has no
         such limit.)

         Position-independent code requires special support, and therefore
         works only on certain machines.  For the 386, GCC supports PIC for
         System V but not for the Sun 386i.  Code generated for the IBM
         RS/6000 is always position-independent.

   -fPIC
         If supported for the target machine, emit position-independent
         code, suitable for dynamic linking and avoiding any limit on the
         size of the global offset table.  This option makes a difference on
         the m68k, m88k, and the SPARC.

         Position-independent code requires special support, and therefore
         works only on certain machines.

   -fpie
   -fPIE
         These options are similar to -fpic and -fPIC, but generated posi-
         tion independent code can be only linked into executables.  Usually
         these options are used when -pie GCC option will be used during
         linking.

BOoRFGOnZ · 发表于 2005-2-20 08:42:43

ftp://ftp.univie.ac.at/systems/linux/fedora/updates/3/i386/prelink-0.3.3-0.fc3.i386.rpm

BOoRFGOnZ · 发表于 2005-2-20 08:43:40

http://www.gentoo.org/doc/en/prelink-howto.xml

BOoRFGOnZ · 发表于 2005-2-20 08:45:16

我补充补充

KDE · 发表于 2005-2-20 13:50:07

早就升级到 0.3.3 了。不要向我们提供 rpm，我们不能使用非本地编译版本，若有好的 src.rpm 可以推荐。

BOoRFGOnZ · 发表于 2005-2-20 19:00:03

一番好意结果..

KDE · 发表于 2005-2-22 21:26:53

谢谢你。

不过使用其他发行版的 rpm 会引入依赖问题，而且可能有其他隐含风险，比如 rpm 内嵌的脚本可能修改系统配置。

BOoRFGOnZ · 发表于 2005-2-23 06:52:26

这么严重阿

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