CS252: Systems Programming
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CADET: Computer Assisted Discovery Extraction and Translation
CADET: Computer Assisted Discovery Extraction and Translation Benjamin Van Durme, Tom Lippincott, Kevin Duh, Deana Burchfield, Adam Poliak, Cash Costello, Tim Finin, Scott Miller, James Mayfield Philipp Koehn, Craig Harman, Dawn Lawrie, Chandler May, Max Thomas Annabelle Carrell, Julianne Chaloux, Tongfei Chen, Alex Comerford Mark Dredze, Benjamin Glass, Shudong Hao, Patrick Martin, Pushpendre Rastogi Rashmi Sankepally, Travis Wolfe, Ying-Ying Tran, Ted Zhang Human Language Technology Center of Excellence, Johns Hopkins University Abstract Computer Assisted Discovery Extraction and Translation (CADET) is a workbench for helping knowledge workers find, la- bel, and translate documents of interest. It combines a multitude of analytics together with a flexible environment for customiz- Figure 1: CADET concept ing the workflow for different users. This open-source framework allows for easy development of new research prototypes using a micro-service architecture based atop Docker and Apache Thrift.1 1 Introduction CADET is an integrated workbench for helping knowledge workers discover, extract, and translate Figure 2: Discovery user interface useful information. The user interface (Figure1) is based on a domain expert starting with a large information in structured form. To do so, she ex- collection of data, wishing to discover the subset ports the search results to our Extraction interface, that is most salient to their goals, and exporting where she can provide annotations to help train an the results to tools for either extraction of specific information extraction system. The Extraction in- information of interest or interactive translation. terface allows the user to label any text span using For example, imagine a humanitarian aid any schema, and also incorporates active learning worker with a large collection of social media to complement the discovery process in selecting messages obtained in the aftermath of a natural data to annotate. -
Powerview Command Reference
PowerView Command Reference TRACE32 Online Help TRACE32 Directory TRACE32 Index TRACE32 Documents ...................................................................................................................... PowerView User Interface ............................................................................................................ PowerView Command Reference .............................................................................................1 History ...................................................................................................................................... 12 ABORT ...................................................................................................................................... 13 ABORT Abort driver program 13 AREA ........................................................................................................................................ 14 AREA Message windows 14 AREA.CLEAR Clear area 15 AREA.CLOSE Close output file 15 AREA.Create Create or modify message area 16 AREA.Delete Delete message area 17 AREA.List Display a detailed list off all message areas 18 AREA.OPEN Open output file 20 AREA.PIPE Redirect area to stdout 21 AREA.RESet Reset areas 21 AREA.SAVE Save AREA window contents to file 21 AREA.Select Select area 22 AREA.STDERR Redirect area to stderr 23 AREA.STDOUT Redirect area to stdout 23 AREA.view Display message area in AREA window 24 AutoSTOre .............................................................................................................................. -
Lab Intro to Console Commands
New Lab Intro to KDE Terminal Konsole After completing this lab activity the student will be able to; Access the KDE Terminal Konsole and enter basic commands. Enter commands using a typical command line interface (CLI). Explain the use of the following commands, ls, ls –al, dir, mkdir, whoami, Explain the directory structure of a typical user. This lab activity will introduce you to one of the many command line interfaces available in Linux/UNIX operating systems and a few of the most basic commands. The command line interface you will be using for this lab activity is the console called the Konsole and is also referred to as Terminal. Note: As you notice, in the KDE system many features are written with the capital letter “K” in place of the first letter or the utility to reflect the fact it was modified for the KDE system. The original UNIX system did not use a graphical user interface GUI but rather was a command line interface (CLI) similar to the command prompt in Windows operating systems. The command line interface is referred to as a shell. Even today the command line interface (the shell) is used to issue commands on a Linux server to minimize system resources. For example, there is no need to start the GUI on the server to add a new user to an existing system. Starting the GUI will reduce the system performance because it requires RAM to run the GUI. A GUI will affect the overall performance of the server when it is supporting many users (clients). -
Coleman-Coding-Freedom.Pdf
Coding Freedom !" Coding Freedom THE ETHICS AND AESTHETICS OF HACKING !" E. GABRIELLA COLEMAN PRINCETON UNIVERSITY PRESS PRINCETON AND OXFORD Copyright © 2013 by Princeton University Press Creative Commons Attribution- NonCommercial- NoDerivs CC BY- NC- ND Requests for permission to modify material from this work should be sent to Permissions, Princeton University Press Published by Princeton University Press, 41 William Street, Princeton, New Jersey 08540 In the United Kingdom: Princeton University Press, 6 Oxford Street, Woodstock, Oxfordshire OX20 1TW press.princeton.edu All Rights Reserved At the time of writing of this book, the references to Internet Web sites (URLs) were accurate. Neither the author nor Princeton University Press is responsible for URLs that may have expired or changed since the manuscript was prepared. Library of Congress Cataloging-in-Publication Data Coleman, E. Gabriella, 1973– Coding freedom : the ethics and aesthetics of hacking / E. Gabriella Coleman. p. cm. Includes bibliographical references and index. ISBN 978-0-691-14460-3 (hbk. : alk. paper)—ISBN 978-0-691-14461-0 (pbk. : alk. paper) 1. Computer hackers. 2. Computer programmers. 3. Computer programming—Moral and ethical aspects. 4. Computer programming—Social aspects. 5. Intellectual freedom. I. Title. HD8039.D37C65 2012 174’.90051--dc23 2012031422 British Library Cataloging- in- Publication Data is available This book has been composed in Sabon Printed on acid- free paper. ∞ Printed in the United States of America 1 3 5 7 9 10 8 6 4 2 This book is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE !" We must be free not because we claim freedom, but because we practice it. -
Man Pages Section 2 System Calls
man pages section 2: System Calls Part No: E29032 October 2012 Copyright © 1993, 2012, Oracle and/or its affiliates. All rights reserved. This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in any form, or by any means. Reverse engineering, disassembly, or decompilation of this software, unless required by law for interoperability, is prohibited. The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing. If this is software or related documentation that is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. Government, the following notice is applicable: U.S. GOVERNMENT END USERS. Oracle programs, including any operating system, integrated software, any programs installed on the hardware, and/or documentation, delivered to U.S. Government end users are "commercial computer software" pursuant to the applicable Federal Acquisition Regulation and agency-specific supplemental regulations. As such, use, duplication, disclosure, modification, and adaptation of the programs, including anyoperating system, integrated software, any programs installed on the hardware, and/or documentation, shall be subject to license terms and license restrictions applicable to the programs. No other rights are granted to the U.S. Government. This software or hardware is developed for general use in a variety of information management applications. -
Memory Management
Memory Management Memory Management 1/53 Learning Objectives Memory Management I Understand the role and function of the memory manager I Understand the operation of dynamic memory allocation algorithms used in language runtime such as malloc I Understand the operation of kernel-level memeory allocators such as the buddy system 2/53 Memory Management: Overview Memory Management I Primary role of memory manager: I Allocates primary memory to processes I Maps process address space to primary memory I Minimizes access time using cost effective memory configuration I Memory management approaches range from primitive bare-machine approach to sophisticated paging and segmentation strategies for implementing virtual memory. 3/53 Relocating Executables Memory Management I Compile, Link, and Load phases. I Source program, relocatable object modules, absolute program. I Dynamic address relocation using relocation registers. I Memory protection using limit registers. (violating the limit generates an hardware interrupt, often called segment violation, that results in a fatal execution error.) 4/53 Building the address space Memory Management Shared primary Libraries Source memory Code Process Addresss Space Compiler Loader Relocatable Static Object Library Code Code Absolute Program (executable) Linker secondary memory 5/53 Process Address Space model Memory Management 0x00000000 Text Program Binary Unitialized Data Global/Static variables Initialized Data Heap Dynamically allocated variables Local variables, function/method arguments Stack Return values 0xFFFFFFFF 6/53 Dynamic Memory Allocation in Processes Memory Management I Using malloc in C or new in C/C++/Java and other languages causes memory to be dynamically allocated. Does malloc or new call the Operating system to get more memory? I The system creates heap and stack segment for processes at the time of creation. -
Memory Management Arkaprava Basu
Indian Institute of Science (IISc), Bangalore, India Memory Management Arkaprava Basu Dept. of Computer Science and Automation Indian Institute of Science www.csa.iisc.ac.in/~arkapravab/ www.csa.iisc.ac.in Indian Institute of Science (IISc), Bangalore, India Memory is virtual ! ▪ Application software sees virtual address ‣ int * p = malloc(64); Virtual address ‣ Load, store instructions carries virtual addresses 2/19/2019 2 Indian Institute of Science (IISc), Bangalore, India Memory is virtual ! ▪ Application software sees virtual address ‣ int * p = malloc(64); Virtual address ‣ Load, store instructions carries virtual addresses ▪ Hardware uses (real) physical address ‣ e.g., to find data, lookup caches etc. ▪ When an application executes (a.k.a process) virtual addresses are translated to physical addresses, at runtime 2/19/2019 2 Indian Institute of Science (IISc), Bangalore, India Bird’s view of virtual memory Physical Memory (e.g., DRAM) 2/19/2019 Picture credit: Nima Honarmand, Stony Brook university 3 Indian Institute of Science (IISc), Bangalore, India Bird’s view of virtual memory Process 1 Physical Memory (e.g., DRAM) 2/19/2019 Picture credit: Nima Honarmand, Stony Brook university 3 Indian Institute of Science (IISc), Bangalore, India Bird’s view of virtual memory Process 1 // Program expects (*x) // to always be at // address 0x1000 int *x = 0x1000; Physical Memory (e.g., DRAM) 2/19/2019 Picture credit: Nima Honarmand, Stony Brook university 3 Indian Institute of Science (IISc), Bangalore, India Bird’s view of virtual memory -
ATLAS Operational Monitoring Data Archival and Visualization
EPJ Web of Conferences 245, 01020 (2020) https://doi.org/10.1051/epjconf/202024501020 CHEP 2019 ATLAS Operational Monitoring Data Archival and Visualiza- tion Igor Soloviev1;∗, Giuseppe Avolio2, Andrei Kazymov3, and Matei Vasile4 1University of California, Irvine, CA 92697-4575, US 2European Laboratory for Particle Physics, CERN, Geneva 23, CH-1211, Switzerland 3Joint Institute for Nuclear Research, JINR, Dubna, Russian Federation 4Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest, Romania Abstract. The Information Service (IS) is an integral part of the Trigger and Data Acquisition (TDAQ) system of the ATLAS experiment at the Large Hadron Collider (LHC) at CERN. The IS allows online publication of opera- tional monitoring data, and it is used by all sub-systems and sub-detectors of the experiment to constantly monitor their hardware and software components including more than 25000 applications running on more than 3000 comput- ers. The Persistent Back-End for the ATLAS Information System (PBEAST) service stores all raw operational monitoring data for the lifetime of the ex- periment and provides programming and graphical interfaces to access them including Grafana dashboards and notebooks based on the CERN SWAN plat- form. During the ATLAS data taking sessions (for the full LHC Run 2 period) PBEAST acquired data at an average information update rate of 200 kHz and stored 20 TB of highly compacted and compressed data per year. This paper reports how over six years PBEAST became an essential piece of the experi- ment operations including details of the challenging requirements, the failures and successes of the various attempted implementations, the new types of mon- itoring data and the results of the time-series database technology evaluations for the improvements towards LHC Run 3. -
UEFI Shell Specification
UEFI Shell Specification January 26, 2016 Revision 2.2 The material contained herein is not a license, either expressly or impliedly, to any intellectual property owned or controlled by any of the authors or developers of this material or to any contribution thereto. The material contained herein is provided on an "AS IS" basis and, to the maximum extent permitted by applicable law, this information is provided AS IS AND WITH ALL FAULTS, and the authors and developers of this material hereby disclaim all other warranties and conditions, either express, implied or statutory, including, but not limited to, any (if any) implied warranties, duties or conditions of merchantability, of fitness for a particular purpose, of accuracy or completeness of responses, of results, of workmanlike effort, of lack of viruses and of lack of negligence, all with regard to this material and any contribution thereto. Designers must not rely on the absence or characteristics of any features or instructions marked "reserved" or "undefined." The Unified EFI Forum, Inc. reserves any features or instructions so marked for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them. ALSO, THERE IS NO WARRANTY OR CONDITION OF TITLE, QUIET ENJOYMENT, QUIET POSSESSION, CORRESPONDENCE TO DESCRIPTION OR NON-INFRINGEMENT WITH REGARD TO THE SPECIFICATION AND ANY CONTRIBUTION THERETO. IN NO EVENT WILL ANY AUTHOR OR DEVELOPER OF THIS MATERIAL OR ANY CONTRIBUTION THERETO BE LIABLE TO ANY OTHER PARTY FOR THE COST OF PROCURING SUBSTITUTE GOODS OR SERVICES, LOST PROFITS, LOSS OF USE, LOSS OF DATA, OR ANY INCIDENTAL, CONSEQUENTIAL, DIRECT, INDIRECT, OR SPECIAL DAMAGES WHETHER UNDER CONTRACT, TORT, WARRANTY, OR OTHERWISE, ARISING IN ANY WAY OUT OF THIS OR ANY OTHER AGREEMENT RELATING TO THIS DOCUMENT, WHETHER OR NOT SUCH PARTY HAD ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. -
Linux Networking 101
The Gorilla ® Guide to… Linux Networking 101 Inside this Guide: • Discover how Linux continues its march toward world domination • Learn basic Linux administration tips • See how easy it can be to build your entire network on a Linux foundation • Find out how Cumulus Linux is your ticket to networking freedom David M. Davis ActualTech Media Helping You Navigate The Technology Jungle! In Partnership With www.actualtechmedia.com The Gorilla Guide To… Linux Networking 101 Author David M. Davis, ActualTech Media Editors Hilary Kirchner, Dream Write Creative, LLC Christina Guthrie, Guthrie Writing & Editorial, LLC Madison Emery, Cumulus Networks Layout and Design Scott D. Lowe, ActualTech Media Copyright © 2017 by ActualTech Media. All rights reserved. No portion of this book may be reproduced or used in any manner without the express written permission of the publisher except for the use of brief quotations. The information provided within this eBook is for general informational purposes only. While we try to keep the information up- to-date and correct, there are no representations or warranties, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the information, products, services, or related graphics contained in this book for any purpose. Any use of this information is at your own risk. ActualTech Media Okatie Village Ste 103-157 Bluffton, SC 29909 www.actualtechmedia.com Entering the Jungle Introduction: Six Reasons You Need to Learn Linux ....................................................... 7 1. Linux is the future ........................................................................ 9 2. Linux is on everything .................................................................. 9 3. Linux is adaptable ....................................................................... 10 4. Linux has a strong community and ecosystem ........................... 10 5. -
How to Change the ADNP/9200 Factory-Set IP Address for LAN2
DIL/NetPC ADNP/9200 – microHOWTO How to change the ADNP/9200 Factory-Set IP Address for LAN2 The IP address for the ADNP/9200 LAN2 Ethernet interface is based on a U-Boot environment variable. The factory-set value for this default IP address is 192.168.1.126. Please see also: mHTA9200-05.pdf: How to change the U-Boot IP Addresses for the LAN1 Ethernet Interface and mHTA9200-04.pdf: How to change the ADNP/9200 Factory-Set IP Address for LAN1 (ipaddree usage). • 1. Step: Set the ADNP/9200 RCM jumper for RCM enable. Then power-up your ADNP/9200 and interrupt the U-Boot auto boot process. Change to the U-Boot command line interface. Then enter the U-Boot command printenv. U-Boot> printenv bootargs=console=ttyS0,115200 root=/dev/ram bootdelay=3 baudrate=115200 ethaddr=02:80:ad:20:57:23 ethaddr2=02:80:ad:20:57:24 bootfile="img-dnp9200" netmask=255.255.255.0 ipaddr=192.168.0.126 ipaddr2=192.168.1.126 bootcmd=bootm 0x10040000 serverip=192.168.0.1 stdin=serial stdout=serial stderr=serial Environment size: 300/4092 bytes U-Boot> • 2. Step: The U-Boot command setenv <name> allows you to change the value for an environ- ment variable. The command saveenv stores the new value in the ADNP/9200 flash memory. U-Boot> setenv ipaddr2 192.168.3.126 U-Boot> saveenv Saving Environment to Flash... Un-Protected 1 sectors Erasing Flash... done Erased 1 sectors Writing to Flash... done Protected 1 sectors U-Boot> • 3. -
Freebsd Command Reference
FreeBSD command reference Command structure Each line you type at the Unix shell consists of a command optionally followed by some arguments , e.g. ls -l /etc/passwd | | | cmd arg1 arg2 Almost all commands are just programs in the filesystem, e.g. "ls" is actually /bin/ls. A few are built- in to the shell. All commands and filenames are case-sensitive. Unless told otherwise, the command will run in the "foreground" - that is, you won't be returned to the shell prompt until it has finished. You can press Ctrl + C to terminate it. Colour code command [args...] Command which shows information command [args...] Command which modifies your current session or system settings, but changes will be lost when you exit your shell or reboot command [args...] Command which permanently affects the state of your system Getting out of trouble ^C (Ctrl-C) Terminate the current command ^U (Ctrl-U) Clear to start of line reset Reset terminal settings. If in xterm, try Ctrl+Middle mouse button stty sane and select "Do Full Reset" exit Exit from the shell logout ESC :q! ENTER Quit from vi without saving Finding documentation man cmd Show manual page for command "cmd". If a page with the same man 5 cmd name exists in multiple sections, you can give the section number, man -a cmd or -a to show pages from all sections. man -k str Search for string"str" in the manual index man hier Description of directory structure cd /usr/share/doc; ls Browse system documentation and examples. Note especially cd /usr/share/examples; ls /usr/share/doc/en/books/handbook/index.html cd /usr/local/share/doc; ls Browse package documentation and examples cd /usr/local/share/examples On the web: www.freebsd.org Includes handbook, searchable mailing list archives System status Alt-F1 ..