Aug 20, 2015 · Glibc is the implementation that most Linuxes use, but there are others. Glibc also contains (as Aftnix states) the glue functions which set up the scene for jumps into the kernel (also known as system calls). So many of glibc's 'functions' don't do the actual work but only delegate to the kernel. To read the source of Glibc, just google for it.

glibc isn't a single .so (dynamic library) file -- there are a bunch, but libc and libm are the most commonly-used two. All of the static and dynamic libraries are stored in /lib. libc is a generic term used to refer to all C standard libraries -- there are several. glibc is the most commonly used one; others include eglibc, uclibc, and dietlibc.

Mar 4, 2020 · GLIBC_ and GLIBCXX_ symbol versions have no intrinsic relationship. GLIBC_ belongs to glibc, and GLIBCXX_ to libstdc++. libstdc++ can be built against many different glibc versions, and this can result in different GLIBC_ version references, but the set of GLIBCXX_ versions is not changed by that.

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Jun 14, 2016 · The best practice is to not install glibc on Alpine Linux. It uses musl libc instead, a lightweight, fast, simple and standards-conform C library (i.e. everything that glibc is not). Instead of installing glibc on Alpine, build and/or package your dependent software packages and libraries for …

Dec 2, 2019 · Updating glibc to a version that is not standard for your distribution is not so easy, since practically everything else on the system will depend on the current version. It's probably much less trouble to upgrade the whole system to 18.04 (which uses glibc 2.27), or to install this software on a separate computer running 18.04.

May 18, 2010 · When I compile something on my Ubuntu Lucid 10.04 PC it gets linked against glibc. Lucid uses 2.11 of glibc. When I run this binary on another PC with an older glibc, the command fails saying there...

The libraries shipped by glibc have a lot of reverse dependencies, and an upgrade would probably trigger a need to rebuild quite a few other packages. So if a later glibc is important for some reason, the best option you have is to upgrade to 20.10 and then 21.04.

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Sep 13, 2015 · GNU libraries (glibc and libstdc++) support a mechanism called symbol versioning. First of all, these libraries export special symbols used by dynamic linker to resolve the appropriate symbol version (CXXABI_* and GLIBCXX_* in libstdc++, GLIBC_* in glibc). A simple script to the tune of: nm -D libc.so.6 | grep " A "