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system call
(redirected from System calls)

    Also found in: Wikipedia 0.04 sec.
(operating system, programming)system call - The mechanism used by an application program to request service from the operating system. System calls often use a special machine code instruction which causes the processor to change mode (e.g. to "supervisor mode" or "protected mode"). This allows the OS to perform restricted actions such as accessing hardware devices or the memory management unit.
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Linux kernal programming is at the heart of a title which reveals the basics of Unix system calls and C--but users needn't be hardcore programmers to find useful topics such as driver debugging, memory management, and driver models.
O'Reilly & Associates by Donovan, Diane / MBR Bookwatch
System Calls Most system calls or kernel OS virtualization access operations have shares a single kernel additional overhead; hardware for the host system emulation commands and and all VEs.
Hardware or OS virtualization software for servers? Server ... by Safigan, Carla / Computer Technology Review
This process is made easiest with other open standards-based or POSIX-conformant OSes such as LynuxWorks' LynxOS real-time operating system (RTOS) and LynxOS-178 safety-critical RTOS, since the host OS would need to intercept Linux system calls in order for a port to be possible.
LynuxWorks introduces first User-Mode Linux software for Apple ... by EDP Weekly's IT Monitor
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