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lazy binding

Finding a library function's address only the first time it is called, instead of when the program starts.

Lazy binding defers resolution of a PLT entry until its first call: the GOT entry starts by pointing at a resolver, which looks up the symbol, rewrites the GOT entry and jumps to the target; modern hardened builds (-z now, full RELRO) bind every entry at load time instead.

See also

procedure linkage table RELRO global offset table warm-up run
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