On terça-feira, 15 de outubro de 2013 17:35:13, Łukasz Stelmach wrote: > > This is not madness. Before we had dynamic shared libraries we had > > static shared libraries. No runtime linking required, everything is > > done via table lookups. You can't delete interfaces from a static > > shared library, so they make development slightly more difficult. They > > are lots faster. > > a.out? I may be too young to remember.
Yeah, that's pre-ELF. It's also before my day. My first Linux install still had a.out support and libc.so.4, but that was only for compatibility. ELF is a big beast, however. To speed up, I recommend prelinking libraries, executables, using techniques like ELF symbol visibility, protected visibility, -Bsymbolic, etc. See http://www.macieira.org/blog/2012/01/sorry-state-of-dynamic-libraries-on-linux/ http://www.macieira.org/blog/2012/01/update-and-benchmark-on-the-dynamic-library-proposals/ -- Thiago Macieira - thiago.macieira (AT) intel.com Software Architect - Intel Open Source Technology Center
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