Method and apparatus for dynamically linking subprogram to main

Details Method and apparatus for dynamically linking subprogram to main Method and apparatus for dynamically linking subprogram to main

1989-02-13

1992-12-29

Lee, Thomas C.

Boots, shoes, and leggings

3642625, 3642557, 3642804, 3642629, 364DIG1, G06F 942

Patent

active

051758288

ABSTRACT:
A dynamic linker links a subprogram into an already complete program while the program is running. The linking is performed by initially creating a procedure in the subprogram with a name that matches a present procedure name within the program. The dynamic linker then compares the names to find the present procedure and replaces it with the subprogram procedure. The subprogram may contain one or more procedures that include additional functions. Procedure replacement techniques are described for RAM-and ROW-based systems. Unlike conventional linkers, the linking occurs while the program continues to run, preserving the program's data and state while changing or augmenting its functions.

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Linkers and Loaders, L. Presser and White, J. R. University of Calif., Santa Barbara, Computing Surveys, vol. 4, No. 3, Sep. 1972.

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