Linux Systems Programming I
... develop and code several (six-ten) programs of intermediate difficulty and length in the C++ language, including programs broken into several files; 3. adhere to style and documentation standards in writing programs; 4. use system debuggers to step into and over code, set breakpoints and watch varia ...
... develop and code several (six-ten) programs of intermediate difficulty and length in the C++ language, including programs broken into several files; 3. adhere to style and documentation standards in writing programs; 4. use system debuggers to step into and over code, set breakpoints and watch varia ...
UNIX Operating System Names
... personal computers and servers, usually in the form of Linux distributions, and on various embedded devices such as routers, wireless access points, PBXes, set-top boxes, FTA receivers, smart TVs, PVRs and NAS appliances. The Android operating system for tablet computers, smartphones and smartwatche ...
... personal computers and servers, usually in the form of Linux distributions, and on various embedded devices such as routers, wireless access points, PBXes, set-top boxes, FTA receivers, smart TVs, PVRs and NAS appliances. The Android operating system for tablet computers, smartphones and smartwatche ...
Peter Sirokman
... Since L4Linux is a “complete” operating system, it is representative of microkernel operating systems ...
... Since L4Linux is a “complete” operating system, it is representative of microkernel operating systems ...
Introduction to Linux
... 8-Setup Linux for scientific purpose start with Linux (tutorial session) ...
... 8-Setup Linux for scientific purpose start with Linux (tutorial session) ...
CSS307-System Programming
... Linux is developed by a loose confederation of developers from all over the world, collaborating over the Internet, with Linus Torvalds at the head. Technical skill and a desire to contribute are the only qualifications for participating. The Linux community is a far reaching ecosystem of developers ...
... Linux is developed by a loose confederation of developers from all over the world, collaborating over the Internet, with Linus Torvalds at the head. Technical skill and a desire to contribute are the only qualifications for participating. The Linux community is a far reaching ecosystem of developers ...
Bhargavi Konduru`s presentation on Constructing Secure Operating
... personal data file services in order to isolate personal data files from any illegal access. Network services are isolated in another protection domain since a network subsystem is the most likely an entry point for a system to be compromised. Local device servers implement the drivers of device ...
... personal data file services in order to isolate personal data files from any illegal access. Network services are isolated in another protection domain since a network subsystem is the most likely an entry point for a system to be compromised. Local device servers implement the drivers of device ...
lecture4
... back to whatever was running before, and do the rest of the processing later (like moving the data into a buffer where its recipient process can find it and restarting the process). The activities that the kernel needs to perform in response to an interrupt are thus divided into two parts: a top h ...
... back to whatever was running before, and do the rest of the processing later (like moving the data into a buffer where its recipient process can find it and restarting the process). The activities that the kernel needs to perform in response to an interrupt are thus divided into two parts: a top h ...
Intro and using Linux Commands
... Text – commands are used to navigate the Linux system and write shell scripts. Access text mode in the Linux OS via a shell ...
... Text – commands are used to navigate the Linux system and write shell scripts. Access text mode in the Linux OS via a shell ...
OS-DS-Arch
... that is necessary for its particular role in the system architecture. For example, system software needs of PDA and dedicated server are different and loading redundant modules wastes memory resources. Allow the software (and the computer) implementing any particular service to be changed independen ...
... that is necessary for its particular role in the system architecture. For example, system software needs of PDA and dedicated server are different and loading redundant modules wastes memory resources. Allow the software (and the computer) implementing any particular service to be changed independen ...
Background: Operating Systems
... How do processes and kernel communicate? How do processes and kernel wait for events (e.g., disk and network I/O)? ...
... How do processes and kernel communicate? How do processes and kernel wait for events (e.g., disk and network I/O)? ...
Monolithic, Mikrokernel and Exokernel
... abstractions than the typical Unix primitives. In addition to the new mechanisms, providing an API compatible with Unix or another conventional operating system was a sine qua non; hence implementing Unix on top of the new systems was a natural consequence. Therefore, the microkernel idea became wid ...
... abstractions than the typical Unix primitives. In addition to the new mechanisms, providing an API compatible with Unix or another conventional operating system was a sine qua non; hence implementing Unix on top of the new systems was a natural consequence. Therefore, the microkernel idea became wid ...
Booting and Shutting Down UNIX Flavored Operating Systems
... – halt: Performs essential duties required to bring the system down, waits for the filesystem writes to complete then halts the kernel. – reboot: Executes identically to halt with the excepting that it causes to system to restart from scratch rather than halting the kernel. – kill init: This is not ...
... – halt: Performs essential duties required to bring the system down, waits for the filesystem writes to complete then halts the kernel. – reboot: Executes identically to halt with the excepting that it causes to system to restart from scratch rather than halting the kernel. – kill init: This is not ...
Steps of porting (cont
... Here talks only ‘kernel’, the deepest of an operating system A kernel needs to provide root services for other parts in system Kernel also have to manage hardware and allocate system resources Sometimes a kernel can be explained as ‘supervisor of OS’ or ‘core’ ...
... Here talks only ‘kernel’, the deepest of an operating system A kernel needs to provide root services for other parts in system Kernel also have to manage hardware and allocate system resources Sometimes a kernel can be explained as ‘supervisor of OS’ or ‘core’ ...
Operating System Architecture and Distributed Systems
... that is necessary for its particular role in the system architecture. For example, system software needs of PDA and dedicated server are different and loading redundant modules wastes memory resources. Allow the software (and the computer) implementing any particular service to be changed independen ...
... that is necessary for its particular role in the system architecture. For example, system software needs of PDA and dedicated server are different and loading redundant modules wastes memory resources. Allow the software (and the computer) implementing any particular service to be changed independen ...
Chap-2-Architecture
... functions to manage system resources such as memory, disk storage, and peripherals System calls are defined in a run-time library that provides a mapping of the system call interface to the kernel routine(s) that perform the system functions The shell also provides functionality equivalent to many o ...
... functions to manage system resources such as memory, disk storage, and peripherals System calls are defined in a run-time library that provides a mapping of the system call interface to the kernel routine(s) that perform the system functions The shell also provides functionality equivalent to many o ...
Kernel designs explained
... actual ‘microkernel’) takes care of the communication between the servers running in userspace; this is called ‘inter-process communication (IPC)’3. These servers provide functionality such as sound, display, disk access, networking, and so on. This scheme adds a lot of complexity to the overall sys ...
... actual ‘microkernel’) takes care of the communication between the servers running in userspace; this is called ‘inter-process communication (IPC)’3. These servers provide functionality such as sound, display, disk access, networking, and so on. This scheme adds a lot of complexity to the overall sys ...
Scale and Performance in the Denali Isolation Kernel
... While the Delani Isolation Kernel looks like a standard VMM: ...
... While the Delani Isolation Kernel looks like a standard VMM: ...
Course Introduction - Department of Computer Science
... Hopefully this course: – Isn’t too hard (or too easy) – Builds upon basic OS understanding – Works for people with basic to advanced knowledge of Linux ...
... Hopefully this course: – Isn’t too hard (or too easy) – Builds upon basic OS understanding – Works for people with basic to advanced knowledge of Linux ...
COS 318: Operating Systems OS Structures and System Calls Prof. Margaret Martonosi
... What should go in system calls? What should go in library calls? ...
... What should go in system calls? What should go in library calls? ...
The Contiki Operating System
... are kept separate in ROM. Program Code loaded at runtime. Program code can be loaded from ROM or RAM Allows for “Over the Air Programming” for networks of sensors ...
... are kept separate in ROM. Program Code loaded at runtime. Program code can be loaded from ROM or RAM Allows for “Over the Air Programming” for networks of sensors ...
COS 318: Operating Systems OS Structures and System Calls Andy Bavier
... Change the voltage and frequency of processor Halt a processor Reset a processor ...
... Change the voltage and frequency of processor Halt a processor Reset a processor ...
ARM Based Customizing an Operating System for the Single Board
... processor mode (called the user mode), with a limited set of interfaces available and with limited access to system data. The monolithic operating system structure with separate user and kernel processor mode is shown in Figure – 2 When a user-mode program calls a system service, the processor traps ...
... processor mode (called the user mode), with a limited set of interfaces available and with limited access to system data. The monolithic operating system structure with separate user and kernel processor mode is shown in Figure – 2 When a user-mode program calls a system service, the processor traps ...
Course Introduction - Washington University in St. Louis
... Avoids modifying the kernel on machines others may need to use ...
... Avoids modifying the kernel on machines others may need to use ...
slides
... Memory Protection Trickiness Consider a hypothetical system call, zeroFill, which fills a user buffer with zeroes: zeroFill(char* buffer, int bufferSize); ...
... Memory Protection Trickiness Consider a hypothetical system call, zeroFill, which fills a user buffer with zeroes: zeroFill(char* buffer, int bufferSize); ...
Linux kernel
The Linux kernel is a Unix-like computer operating system kernel. It is widely used world-wide; the Linux operating system is based on it and deployed on both traditional computer systems such as personal computers and servers, usually in the form of Linux distributions, and on various embedded devices such as routers and NAS appliances. The Android operating system for tablet computers, smartphones and smartwatches is also based atop the Linux kernel.The Linux kernel was initially conceived and created in 1991 by Finnish computer science student Linus Torvalds, for his personal computer and with no cross-platform intentions, but has since expanded to support a huge array of computer architectures, many more than other operating systems or kernels. Linux rapidly attracted developers and users who adapted code from other free software projects for use with the new operating system. The Linux kernel has received contributions from nearly 12,000 programmers from more than 1,200 companies, including some of the largest software and hardware vendors.The Linux kernel API, the application programming interface (API) through which user programs interact with the kernel, is meant to be very stable and to not break userspace programs (some programs, such as those with GUIs, rely on other APIs as well). As part of the kernel's functionality, device drivers control the hardware; ""mainlined"" device drivers are also meant to be very stable. However, the interface between the kernel and loadable kernel modules (LKMs), unlike in many other kernels and operating systems, is not meant to be very stable by design.The Linux kernel, developed by contributors worldwide, is a prominent example of free and open source software. Day-to-day development discussions take place on the Linux kernel mailing list (LKML). The Linux kernel is released under the GNU General Public License version 2 (GPLv2), with some firmware images released under various non-free licenses.