Abstract not found

Relocation adjusts machine instructions to account for changes in the locations of the instructions themselves or of external symbols to which they refer. Standard linkers implement a finite set of relocation transformations, suitable for a single architecture. These transformations are enumerated, named, and engraved in a machine-dependent object-file format, and linkers must recognize them by name. These names and their associated transformations are an unnecessary source of machine-dependence. The New Jersey Machine-Code Toolkit is an application generator. It helps programmers create applications that manipulate machine code, including linkers. Guided by a short instruction-set specification, the toolkit generates the bit-manipulating code. Instructions are described by constructors, which denote functions mapping lists of operands to instructions' binary representations. Any operand can be designated as "relocatable," meaning that the operand's value need not be known at the time ...