Using the GNU Compiler Collection
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Using the GNU Compiler Collection (GCC)
Using the GNU Compiler Collection (GCC) Using the GNU Compiler Collection by Richard M. Stallman and the GCC Developer Community Last updated 23 May 2004 for GCC 3.4.6 For GCC Version 3.4.6 Published by: GNU Press Website: www.gnupress.org a division of the General: [email protected] Free Software Foundation Orders: [email protected] 59 Temple Place Suite 330 Tel 617-542-5942 Boston, MA 02111-1307 USA Fax 617-542-2652 Last printed October 2003 for GCC 3.3.1. Printed copies are available for $45 each. Copyright c 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with the Invariant Sections being \GNU General Public License" and \Funding Free Software", the Front-Cover texts being (a) (see below), and with the Back-Cover Texts being (b) (see below). A copy of the license is included in the section entitled \GNU Free Documentation License". (a) The FSF's Front-Cover Text is: A GNU Manual (b) The FSF's Back-Cover Text is: You have freedom to copy and modify this GNU Manual, like GNU software. Copies published by the Free Software Foundation raise funds for GNU development. i Short Contents Introduction ...................................... 1 1 Programming Languages Supported by GCC ............ 3 2 Language Standards Supported by GCC ............... 5 3 GCC Command Options ......................... -
Extending the UHC LLVM Backend: Adding Support for Accurate Garbage Collection
Extending the UHC LLVM backend: Adding support for accurate garbage collection Paul van der Ende MSc Thesis October 18, 2010 INF/SCR-09-59 Daily Supervisors: Center for Software Technology dr. A. Dijkstra Dept. of Information and Computing Sciences drs. J.D. Fokker Utrecht University Utrecht, the Netherlands Second Supervisor: prof. dr. S.D. Swierstra Abstract The Utrecht Haskell Compiler has an LLVM backend for whole program analyse mode. This backend pre- viously used the Boehm-Weiser library for heap allocation and conservative garbage collection. Recently an accurate garbage collector for the UHC compiler has been developed. We wanted this new garbage collection library to work with the LLVM backend. But since this new collector is accurate, it needs cooperation with the LLVM backend. Functionality needs to be added to find the set of root references and traversing all live references. To find the root set, the bytecode interpreter backend currently uses static stack maps. This is where the problem arises. The LLVM compiler is known to do various aggressive transformations. These optimizations might change the stack layout described by the static stack map. So to avoid this problem we wanted to use the shadow-stack provided by the LLVM framework. This is a dynamic structure maintained on the stack to safely find the garbage collection roots. We expect that the shadow-stack approach comes with a runtime overhead for maintaining this information dynamically on the stack. So we did measure the impact of this method. We also measured the performance improvement of the new garbage collection method used and compare it with the other UHC backends. -
The GNU Configure and Build System
The GNU configure and build system Ian Lance Taylor Copyright c 1998 Cygnus Solutions Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the con- ditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Permission is granted to copy and distribute translations of this manual into another lan- guage, under the above conditions for modified versions, except that this permission notice may be stated in a translation approved by the Free Software Foundation. i Table of Contents 1 Introduction ............................... 1 1.1 Goals................................................... 1 1.2 Tools ................................................... 1 1.3 History ................................................. 1 1.4 Building ................................................ 2 2 Getting Started............................ 3 2.1 Write configure.in ....................................... 4 2.2 Write Makefile.am ....................................... 6 2.3 Write acconfig.h......................................... 7 2.4 Generate files ........................................... 8 2.5 Example................................................ 8 2.5.1 First Try....................................... 9 2.5.2 Second Try.................................... 10 2.5.3 Third -
Improving Memory Management Security for C and C++
Improving memory management security for C and C++ Yves Younan, Wouter Joosen, Frank Piessens, Hans Van den Eynden DistriNet, Katholieke Universiteit Leuven, Belgium Abstract Memory managers are an important part of any modern language: they are used to dynamically allocate memory for use in the program. Many managers exist and depending on the operating system and language. However, two major types of managers can be identified: manual memory allocators and garbage collectors. In the case of manual memory allocators, the programmer must manually release memory back to the system when it is no longer needed. Problems can occur when a programmer forgets to release it (memory leaks), releases it twice or keeps using freed memory. These problems are solved in garbage collectors. However, both manual memory allocators and garbage collectors store management information for the memory they manage. Often, this management information is stored where a buffer overflow could allow an attacker to overwrite this information, providing a reliable way to achieve code execution when exploiting these vulnerabilities. In this paper we describe several vulnerabilities for C and C++ and how these could be exploited by modifying the management information of a representative manual memory allocator and a garbage collector. Afterwards, we present an approach that, when applied to memory managers, will protect against these attack vectors. We implemented our approach by modifying an existing widely used memory allocator. Benchmarks show that this implementation has a negligible, sometimes even beneficial, impact on performance. 1 Introduction Security has become an important concern for all computer users. Worms and hackers are a part of every day internet life. -
Comparative Studies of Programming Languages; Course Lecture Notes
Comparative Studies of Programming Languages, COMP6411 Lecture Notes, Revision 1.9 Joey Paquet Serguei A. Mokhov (Eds.) August 5, 2010 arXiv:1007.2123v6 [cs.PL] 4 Aug 2010 2 Preface Lecture notes for the Comparative Studies of Programming Languages course, COMP6411, taught at the Department of Computer Science and Software Engineering, Faculty of Engineering and Computer Science, Concordia University, Montreal, QC, Canada. These notes include a compiled book of primarily related articles from the Wikipedia, the Free Encyclopedia [24], as well as Comparative Programming Languages book [7] and other resources, including our own. The original notes were compiled by Dr. Paquet [14] 3 4 Contents 1 Brief History and Genealogy of Programming Languages 7 1.1 Introduction . 7 1.1.1 Subreferences . 7 1.2 History . 7 1.2.1 Pre-computer era . 7 1.2.2 Subreferences . 8 1.2.3 Early computer era . 8 1.2.4 Subreferences . 8 1.2.5 Modern/Structured programming languages . 9 1.3 References . 19 2 Programming Paradigms 21 2.1 Introduction . 21 2.2 History . 21 2.2.1 Low-level: binary, assembly . 21 2.2.2 Procedural programming . 22 2.2.3 Object-oriented programming . 23 2.2.4 Declarative programming . 27 3 Program Evaluation 33 3.1 Program analysis and translation phases . 33 3.1.1 Front end . 33 3.1.2 Back end . 34 3.2 Compilation vs. interpretation . 34 3.2.1 Compilation . 34 3.2.2 Interpretation . 36 3.2.3 Subreferences . 37 3.3 Type System . 38 3.3.1 Type checking . 38 3.4 Memory management . -
Release 0.11 Todd Gamblin
Spack Documentation Release 0.11 Todd Gamblin Feb 07, 2018 Basics 1 Feature Overview 3 1.1 Simple package installation.......................................3 1.2 Custom versions & configurations....................................3 1.3 Customize dependencies.........................................4 1.4 Non-destructive installs.........................................4 1.5 Packages can peacefully coexist.....................................4 1.6 Creating packages is easy........................................4 2 Getting Started 7 2.1 Prerequisites...............................................7 2.2 Installation................................................7 2.3 Compiler configuration..........................................9 2.4 Vendor-Specific Compiler Configuration................................ 13 2.5 System Packages............................................. 16 2.6 Utilities Configuration.......................................... 18 2.7 GPG Signing............................................... 20 2.8 Spack on Cray.............................................. 21 3 Basic Usage 25 3.1 Listing available packages........................................ 25 3.2 Installing and uninstalling........................................ 42 3.3 Seeing installed packages........................................ 44 3.4 Specs & dependencies.......................................... 46 3.5 Virtual dependencies........................................... 50 3.6 Extensions & Python support...................................... 53 3.7 Filesystem requirements........................................ -
Gnu Libiberty September 2001 for GCC 3
gnu libiberty September 2001 for GCC 3 Phil Edwards et al. Copyright c 2001 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the section entitled “GNU Free Documentation License”. i Table of Contents 1 Using ............................................ 1 2 Overview ........................................ 2 2.1 Supplemental Functions ........................................ 2 2.2 Replacement Functions ......................................... 2 2.2.1 Memory Allocation ........................................ 2 2.2.2 Exit Handlers ............................................. 2 2.2.3 Error Reporting ........................................... 2 2.3 Extensions ..................................................... 3 3 Obstacks......................................... 4 3.1 Creating Obstacks.............................................. 4 3.2 Preparing for Using Obstacks................................... 4 3.3 Allocation in an Obstack ....................................... 5 3.4 Freeing Objects in an Obstack.................................. 6 3.5 Obstack Functions and Macros ................................. 7 3.6 Growing Objects ............................................... 8 3.7 Extra Fast Growing Objects ................................... -
Diploma Thesis
Faculty of Computer Science Chair for Real Time Systems Diploma Thesis Porting DotGNU to Embedded Linux Author: Alexander Stein Supervisor: Jun.-Prof. Dr.-Ing. Robert Baumgartl Dipl.-Ing. Ronald Sieber Date of Submission: May 15, 2008 Alexander Stein Porting DotGNU to Embedded Linux Diploma Thesis, Chemnitz University of Technology, 2008 Abstract Programming PLC systems is limited by the provided libraries. In contrary, hardware-near programming needs bigger eorts in e. g. initializing the hardware. This work oers a foundation to combine advantages of both development sides. Therefore, Portable.NET from the DotGNU project has been used, which is an im- plementation of CLI, better known as .NET. The target system is the PLCcore- 5484 microcontroller board, developed by SYS TEC electronic GmbH. Built upon the porting, two variants to use interrupt routines withing the Portabe.NET runtime environment have been analyzed. Finally, the reaction times to occuring interrupt events have been examined and compared. Die Programmierung für SPS-Systeme ist durch die gegebenen Bibliotheken beschränkt, während hardwarenahe Programmierung einen gröÿeren Aufwand durch z.B. Initialisierungen hat. Diese Arbeit bietet eine Grundlage, um die Vorteile bei- der Entwicklungsseiten zu kombinieren. Dafür wurde Portable.NET des DotGNU- Projekts, eine Implementierung des CLI, bekannter unter dem Namen .NET, be- nutzt. Das Zielsystem ist das PLCcore-5484 Mikrocontrollerboard der SYS TEC electronic GmbH. Aufbauend auf der Portierung wurden zwei Varianten zur Ein- bindung von Interrupt-Routinen in die Portable.NET Laufzeitumgebung untersucht. Abschlieÿend wurden die Reaktionszeiten zu eintretenden Interrupts analysiert und verglichen. Acknowledgements I would like to thank some persons who had inuence and supported me in my work. -
Kafl: Hardware-Assisted Feedback Fuzzing for OS Kernels
kAFL: Hardware-Assisted Feedback Fuzzing for OS Kernels Sergej Schumilo1, Cornelius Aschermann1, Robert Gawlik1, Sebastian Schinzel2, Thorsten Holz1 1Ruhr-Universität Bochum, 2Münster University of Applied Sciences Motivation IJG jpeg libjpeg-turbo libpng libtiff mozjpeg PHP Mozilla Firefox Internet Explorer PCRE sqlite OpenSSL LibreOffice poppler freetype GnuTLS GnuPG PuTTY ntpd nginx bash tcpdump JavaScriptCore pdfium ffmpeg libmatroska libarchive ImageMagick BIND QEMU lcms Adobe Flash Oracle BerkeleyDB Android libstagefright iOS ImageIO FLAC audio library libsndfile less lesspipe strings file dpkg rcs systemd-resolved libyaml Info-Zip unzip libtasn1OpenBSD pfctl NetBSD bpf man mandocIDA Pro clamav libxml2glibc clang llvmnasm ctags mutt procmail fontconfig pdksh Qt wavpack OpenSSH redis lua-cmsgpack taglib privoxy perl libxmp radare2 SleuthKit fwknop X.Org exifprobe jhead capnproto Xerces-C metacam djvulibre exiv Linux btrfs Knot DNS curl wpa_supplicant Apple Safari libde265 dnsmasq libbpg lame libwmf uudecode MuPDF imlib2 libraw libbson libsass yara W3C tidy- html5 VLC FreeBSD syscons John the Ripper screen tmux mosh UPX indent openjpeg MMIX OpenMPT rxvt dhcpcd Mozilla NSS Nettle mbed TLS Linux netlink Linux ext4 Linux xfs botan expat Adobe Reader libav libical OpenBSD kernel collectd libidn MatrixSSL jasperMaraDNS w3m Xen OpenH232 irssi cmark OpenCV Malheur gstreamer Tor gdk-pixbuf audiofilezstd lz4 stb cJSON libpcre MySQL gnulib openexr libmad ettercap lrzip freetds Asterisk ytnefraptor mpg123 exempi libgmime pev v8 sed awk make -
Licensing Information User Manual Oracle® ILOM Firmware
Licensing Information User Manual ® Oracle ILOM Firmware Release 4.0.x Last Updated: December 2019 Part No: E81116-07 December 2019 Licensing Information User Manual Oracle ILOM Firmware Release 4.0.x Part No: E81116-07 Copyright © 2018, 2019, 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, then 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 any operating 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. -
Using and Porting the GNU Compiler Collection
Using and Porting the GNU Compiler Collection Richard M. Stallman Last updated 14 June 2001 for gcc-3.0 Copyright c 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. For GCC Version 3.0 Published by the Free Software Foundation 59 Temple Place - Suite 330 Boston, MA 02111-1307, USA Last printed April, 1998. Printed copies are available for $50 each. ISBN 1-882114-37-X Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation; with the Invariant Sections being “GNU General Public License”, the Front-Cover texts being (a) (see below), and with the Back-Cover Texts being (b) (see below). A copy of the license is included in the section entitled “GNU Free Documentation License”. (a) The FSF’s Front-Cover Text is: A GNU Manual (b) The FSF’s Back-Cover Text is: You have freedom to copy and modify this GNU Manual, like GNU software. Copies published by the Free Software Foundation raise funds for GNU development. Short Contents Introduction......................................... 1 1 Compile C, C++, Objective C, Fortran, Java ............... 3 2 Language Standards Supported by GCC .................. 5 3 GCC Command Options ............................. 7 4 Installing GNU CC ............................... 111 5 Extensions to the C Language Family .................. 121 6 Extensions to the C++ Language ...................... 165 7 GNU Objective-C runtime features .................... 175 8 gcov: a Test Coverage Program ...................... 181 9 Known Causes of Trouble with GCC ................... 187 10 Reporting Bugs................................. -
Using the GNU Compiler Collection
Using the GNU Compiler Collection Richard M. Stallman Last updated 20 April 2002 for GCC 3.2.3 Copyright c 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. For GCC Version 3.2.3 Published by the Free Software Foundation 59 Temple Place—Suite 330 Boston, MA 02111-1307, USA Last printed April, 1998. Printed copies are available for $50 each. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation; with the Invariant Sections being “GNU General Public License”, the Front-Cover texts being (a) (see below), and with the Back-Cover Texts being (b) (see below). A copy of the license is included in the section entitled “GNU Free Documentation License”. (a) The FSF’s Front-Cover Text is: A GNU Manual (b) The FSF’s Back-Cover Text is: You have freedom to copy and modify this GNU Manual, like GNU software. Copies published by the Free Software Foundation raise funds for GNU development. i Short Contents Introduction ...................................... 1 1 Compile C, C++, Objective-C, Ada, Fortran, or Java ....... 3 2 Language Standards Supported by GCC ............... 5 3 GCC Command Options .......................... 7 4 C Implementation-defined behavior ................. 153 5 Extensions to the C Language Family ................ 157 6 Extensions to the C++ Language ................... 255 7 GNU Objective-C runtime features.................. 267 8 Binary Compatibility ........................... 273 9 gcov—a Test Coverage Program ................... 277 10 Known Causes of Trouble with GCC ...............