Static libraries in C language

  • Get the object files (.o) from all our sources (.c). For this they are compiled with cc -c source.c -o source.o. The -c option tells the compiler not to create an executable, but just an object file. Here I put the cc compiler, because it is the one I used for the example, but you can use GCC, or the g ++ (for C ++) or one of Fortran, Pascal, etc.
  • Create the library (.a). To do this, the ar command is used with the following parameters: ar -rv libname.a source1.o source2.o … The -r option tells the ar command that it has to insert (or replace if they are already inside) the files object in the library. The -v option is “verbose”, so it displays information while you’re doing things. Next, we put all the object files that we want. ar is actually a much more generic command than all this and can be used to pack any type of file (not just object files). It also has options to see what files are inside, delete some of them, replace them, etc.
https://slideplayer.com/slide/3996185/13/images/8/Static+Linking+and+Loading.jpg

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Paola Andrea Garcia Altamirano

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