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pkgmgmt: Add the definition of "library name" as a footnote

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Xi Ruoyao 2025-03-12 20:55:50 +08:00
parent e2789b4c66
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chapter08/pkgmgt.xml
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@ -69,10 +69,25 @@
</listitem>
<listitem> <para>If a package containing a shared library is updated, and
if the name of the library changes, then any packages dynamically
if the name of the library<footnote><para>The name of a shared library is
the string coded in the <constant>DT_SONAME</constant> entry of its
ELF dynamic section. You can get it with the
<command>readelf -d <replaceable>&lt;library file&gt;</replaceable>
| grep SONAME</command> command. In most cases it's suffixed with
<literal>.so.<replaceable>&lt;a version
number&gt;</replaceable></literal>, but there are some cases where
it contains multiple numbers for versioning (like
<filename>libbz2.so.1.0</filename>), contains the version number
before the <filename class='extension'>.so</filename> suffix (like
<filename>libbfd-&binutils-version;</filename>), or does not contain
any version number at all (for example
<filename>libmemusage.so</filename>).
Generally there is no correlation between the package version and the
version number(s) in the library name.</para></footnote>
changes, then any packages dynamically
linked to the library must be recompiled, to link against the
newer library. (Note that there is no correlation between the package
version and the name of the library.) For example, consider a package
newer library.
For example, consider a package
foo-1.2.3 that installs a shared library with the name <filename
class='libraryfile'>libfoo.so.1</filename>. Suppose you upgrade the package to
a newer version foo-1.2.4 that installs a shared library with the name