What is Procedure linkage table (PLT)?
A table of small stubs used to call shared-library functions. With lazy binding, the dynamic linker resolves the address on the first call and writes it into the GOT.
Procedure linkage table (PLT) in the explanations
The program calls external functions through small PLT stubs.
When dynamic linking uses lazy binding through the PLT (pro…With dynamic linking, the call is pointed at a PLT stub, and the dynamic linker places the real library function's address in the GOT at run time.
Disassembling an object file shows that an instruction call…A shared library's exported symbols might be overridden by a same-named definition in another module, so even internal calls must go through the PLT or GOT.
When building a shared library, what is the advantage of ex…
Questions that mention Procedure linkage table (PLT) (3)
- When dynamic linking uses lazy binding through the PLT (procedure linkage table), which statement is correct?
- Disassembling an object file shows that an instruction calling the external function printf has a placeholder target such as 0. When is the correct value filled in?
- When building a shared library, what is the advantage of exporting only the public functions and giving internal functions "hidden" symbol visibility?
Related terms
Dynamic linker Dynamic linking Object file Relocation Linker Shared library Application binary interface (ABI) Address space layout randomization (ASLR) BSS section Entry point