where to locate glibc in the file system
 

where to locate glibc in the file system
and other libraries like gtk c ones of course i couldn't find them in /lib

> where to locate glibc in the file system

They mostly are in /lib (32-bit systems) cq /lib64 (64, of course), but they are named libc-<version>.so (i.e. libc-2.28.so) with a sysbolic LINK libc.so.6 pointing TO it.
Other libraries are either in /lib[64] or /usr/lib[64] and have a likewise versioned filename, libgtk mostly is in /usr/lib[64]

have found it
btw i want to ask are that true? because afaik static libraries can be embeded within a program
http://i.imgur.com/9HEsOvx.png

Most distro's do not supply the static libraries, especially of glibc, anymore, but _if_ yours does: they are named the same, but with a .a (instead of .so, shared object) extension.
So /lib[64]/lib-2.28.a would be the static version of the glibc library.

Do not confuse it with the .la file, which is linking information, not a library at all.