Relocation Table
The relocation table is a list of pointers created by the compiler or assembler and stored in the object or executable file. Each entry in the table, or "fixup", is a pointer to an address in the object code that must be changed when the loader relocates the program. Fixups are designed to support relocation of the program as a complete unit. In some cases, each fixup in the table is itself relative to a base address of zero, so the fixups themselves must be changed as the loader moves through the table.
In some architectures a fixup that crosses certain boundaries (such as a segment boundary) or that is not aligned on a word boundary is illegal and flagged as an error by the linker.
Read more about this topic: Relocation (computing)
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