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[root@ gwan]# file gwan
gwan: ELF 32-bit LSB executable, Intel 80386, version 1 (GNU/Linux), statically linked, stripped
[root@ gwan]# ldd gwan
not a dynamic executable
[root@ gwan]# du -csh gwan
208K gwan
208K total
How does gwan do the magic?
As a web server, it needs to do socket programing and many other heavy jobs, which all require linking with libc, but that seems not the case with gwan. How is that possible?
As it says in the
fileoutput, it’s statically linked — i.e., it has all the relevant code pulled out of the libraries and included in the executable. It’s “hard-coded”.