DYNAMIC INSTRUMENTATION

DYNAMIC INSTRUMENTATION

Techniques for dynamic instrumentation are provided. A method for instrumentation preparation may include obtaining address data of an original instruction in an original instruction stream, obtaining kernel mode data comprising a kernel breakpoint handler, obtaining user mode data comprising a user...

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Hauptverfasser: SONI MANEESH, SINGH BALBIR
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator SONI MANEESH
SINGH BALBIR
description Techniques for dynamic instrumentation are provided. A method for instrumentation preparation may include obtaining address data of an original instruction in an original instruction stream, obtaining kernel mode data comprising a kernel breakpoint handler, obtaining user mode data comprising a user breakpoint handler, allocating a page of a process address space, creating a trampoline, associating the trampoline with a breakpoint instruction, and replacing the original instruction with the breakpoint instruction. A method for instrumentation may include detecting the breakpoint instruction, calling the kernel breakpoint handler, modifying an instruction pointer via the kernel breakpoint handler such that the instruction pointer points to the trampoline, and executing the trampoline. The system for instrumentation may include a breakpoint setup module and a breakpoint execution module for respectively setting up and completing instrumentation involving the trampoline.
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title DYNAMIC INSTRUMENTATION
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