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 Modifying a Dynamic Library

"Sometimes, you might want to determine what is happening in a shared library without modifying the library (have you tried to build glibc lately?). Other times, you might want to override only a few functions within a library and get them to do something else--force a process to a specific CPU, prevent a specific USB message from being sent and so on. All of these tasks are possible if you use the LD_PRELOAD environment variable and a small shim program placed between the application and the library."

 (Submitted by Noel Wed Nov 3, 2004 )


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