orphan date July 2009 Shotgun debugging is a process of making relatively undirected changes to software in the hope that a Computer bug bug will be perturbed out of existence. This almost never works except in very simple programs, or when used as an attempt to work around programming language features that one may be using improperly it usually introduces more bugs. These undirected, random changes can, however, cause more symptoms to occur, which assists in locating and therefore fixing problems. Shotgun debugging can occur when working with multi threaded applications. Attempting to debug a race condition by adding debugging code to the application is likely to change the speed of one Thread computer science thread in relation to another and could cause the problem to disappear. Although apparently a solution to the problem, it is a fix by pure chance and anything else that changes the behaviour of the threads could cause it to resurface &mdash for example on a computer with a different Scheduling computing scheduler . Code added to any part of the program could easily revert the effect of the fix . JargonFile Category Threads computing Category Debugging Category Anti patterns comp sci stub ... more details
orphan date May 2008 Debugging patterns describe a generic set of steps to rectify or correct a bug within a software system. It is a solution to a re occurring problem that is related to a particular bug or type of bug in a specific context. Some examples of debugging patterns include Eliminate Noise Bug Pattern Isolate and expose a particular bug by eliminating all other noise in the system. This enables you to concentrate on finding the real issue. Re occurring Bug Pattern Expose a bug via a unit test. Run that unit test as part of a standard build from that moment on. This ensure that the bug will not recur. Time Specific Bug Pattern Expose the bug by writing a continuous test that runs continuously and fails when an expected error occurs. This is useful for transient bugs. A bug pattern is a particular type of pattern. The original concept of a pattern was introduced by the architect Sir Christopher Alexander as a design pattern. See also Design pattern Architectural pattern computer science External links http www.waset.org ijcs v1 v1 3 29.pdf A Pattern Language for Software Debugging PDF http www.ibm.com developerworks library j diag1.html Bug Patterns An Introduction Category Software architecture Category Software design patterns ... more details
A debugging data format is a means of storing information about a compiled computer program for use by high level debugger s. Modern debugging data formats store enough information to allow source level debugging. High level debuggers need information about variables, types, constants, subroutines and so on so they can translate between machine level storage and source language constructs. Such information can also be used by other software tools. The information must be generated by the compiler and stored in the executable file or dynamic library by the linker. Some object file formats include debugging information, but others can use generic debugging data formats such as stabs and DWARF . List of debugging formats stabs COFF Portable Executable PE COFF Relocatable Object Module Format OMF IEEE 695 DWARF See also Debug symbol References cite web url http www.dwarfstd.org Debugging 20using 20DWARF.pdf title Introduction to the DWARF Debugging Format accessdate 2007 06 10 author Michael J. Eager year 2007 month February archiveurl http web.archive.org web 20070613043934 http dwarfstd.org Debugging using DWARF.pdf Bot retrieved archive archivedate 2007 06 13 Concentrates on DWARF, but also discusses debugging formats in general, with an overview of all the major formats Category Computer file formats pt Formato de dados para depura o programming software stub ... more details
url http www.hpcprojects.com news news story.php?news id 1008 title Scalable debugging demonstrated ... url http cacm.acm.org news 96797 ornl allinea prep debugging tool for petascale supercomputers fulltext title ORNL, Allinea Prep Debugging Tool for Petascale Supercomputers date 30 July 2010 journal Communications of the ACM ref . The debugger has logarithmic performance for most collective debugging ... process debuggers. This architecture is unique in interactive debugging and enables operations to be measured in milliseconds at full scale. It features a complete memory debugging tool which can be used ... more details
Infobox VG title Micro Mouse Goes Debugging Deleted image removed Image Micromouse.jpg aspect ratio 4 3 resolution 256x192 developer Steve Hughes publisher MC Lothlorien Ltd designer engine released 1983 genre modes Single player ratings platforms ZX Spectrum 16K, Commodore64 media Compact audio cassette Cassette requirements input Computer keyboard Keyboard , Joystick Micro Mouse Goes Debugging is a computer game for the ZX Spectrum . It was released by MC Lothlorien Ltd in 1983. Gameplay The premise was to control Micro Mouse around a screen which contained lines of BASIC program, some of which is missing. While Micro Mouse is replacing the code, he must avoid bugs which will try to kill you and also pinch part of the code. Micro Mouse s only form of defense was a can of data kill. 1989 video game MC Lothlorien produced another game of the same game in 1989 which was released by Mastertronic . ref http www.worldofspectrum.org infoseekid.cgi?id 0011899 Micro Mouse Goes De Bugging 1989 on World of Spectrum ref It was also released for the Amstrad CPC and the Commodore 64 . ref http www.lemon64.com ?game id 1666 Micro Mouse Goes De Bugging 1989 on Lemon64 ref This has completely different gameplay compared to the original. In this version, you guided Micro Mouse around a circuit board picking up parts and placing them in the correct spot. This version was poorly received by critics. ref http www.worldofspectrum.org showmag.cgi?mag SinclairUser Issue100 Pages SinclairUser10000020.jpg Sinclair User review ref ref http www.worldofspectrum.org showmag.cgi?mag YourSinclair Issue55 Pages YourSinclair5500075.jpg Your Sinclair review ref References Reflist External links WoS game id 0003181 http www.lemon64.com ?game id 1667 Category 1983 video games Category ZX Spectrum games Category ZX Spectrum only games action videogame stub ... more details
For other expansions of DDT , see DDT disambiguation . Dynamic Debugging Technique , or DDT , was the name of several debugger programs originally developed for Digital Equipment Corporation DEC hardware, initially known as DEC Debugging Tape because it was distributed on paper tape . The name is a pun on the insecticide i.e. bug killer DDT . The first version of DDT was developed at MIT for the PDP 1 computer in 1961, but newer versions on newer platforms continued to use the same name. After being ported to other vendor s platforms and changing media, the name was changed to the less DEC centric version. DDT is closely related to Octal Debugging Technique ODT . Both names were used for several different debuggers, but generally debuggers with the ODT name had more limited capabilities than DDT debuggers. As with other DEC tools, early CP M kept the DEC name DDT for its debugger. DDT was later superseded by Symbolic Instruction Debugger SID . In addition to its normal function as a debugger, DDT was also used as a top level shell computing command shell for the Massachusetts Institute of Technology MIT Incompatible Timesharing System ITS operating system on some more recent ITS systems, it is replaced with a PWORD which implements a restricted subset of DDT s functionality. DDT could run and debug up to eight Process computing processes called jobs on ITS at a time, such as several sessions of Text Editor and Corrector TECO , and DDT could be run recursively that is, some or all of those jobs could themselves be DDTs which could then run another eight jobs, and so on . These eight jobs were all given unique names, and the usual name for the original and top most DDT was HACTRN hack tran thus Guy L. Steele s famous filk poem parody of Edgar Allan Poe s The Raven , The HACTRN . See also Comparison of computer shells External links http web.mit.edu afs net project cgw src ddt.68 ddt.cmds DDT Command List for a freeware version written in portable C programming language ... more details
On line Debugging Tool , or ODT , was the name of several debugger programs originally developed for Digital Equipment Corporation DEC hardware. Various operating system s including OS 8 , RT 11 , RSX 11 , and RSTS E implemented ODT as did the firmware console of all of the LSI 11 family processors including the 11 03, 11 23 24, 11 53, PDP 11 73 11 73 , and 11 83 84. The debugger allowed access to memory using octal addresses and data. Within the software system s, the debugger accessed the process s virtual memory . The firmware console implementation accessed physical memory . ODT is a non symbolic debugger and implements similar functionality to Advanced Debugger adb on Unix systems. Console ODT Console ODT ref p192 202 PDP 11 Processor Handbook pdp11 04 24 34a 44 70 , Digital, 1981 ref replaced the lights and switches console of many of the earlier processors. Access to console ODT is obtained either from power up with appropriate power up mode selected , by the execution of a HALT instruction in kernel mode, or by use of the front panel halt switch or button. Commands Console ODT commands are as follows class wikitable Command Effect or a Opens the current memory location or a if specified CR Close currently open location or register LF Close currently open location or register and open next P Proceed, execute next instruction with no imlied reset If the halt switch is down this is allows for single steppinng addr G Load PC with addr , reset and commence execution at address Rn or n Open register n RS or S Open PSW If console ODT encounters a bus timeout it displays ? CR LF Example 1000 xxxxxx 112737 LF 001002 xxxxxx 101 LF 001004 xxxxxx 177566 LF 001006 xxxxxx 137 LF 001010 xxxxxx 1000 CR R7 xxxxxx 1000 CR RS 340 This deposits the program MOVB A , 177566 Move A into console transmit register JMP 1000 Jump back to start The deposit to the PC, sets the PC to the start ... memory See also Dynamic debugging technique Dynamic Debugging Technique XDT Executive Debugging ... more details
Source code annotation is a feature of debugging tools such as GTKWave that allows values from a simulation run to be viewable directly in the source code . This allows for viewing of values at a given point in time rather than longitudinally across many time values. References Unreferenced date June 2008 Compu prog stub Category Debugging Category GTK ... more details
Orphan date February 2009 Refimprove date December 2008 Microsoft Symbol Server is a Windows technology used to obtain symbol debugging information. It is built by using the SymSrv technology that is bundled with the Debugging Tools for Windows package. The SymChk.exe utility can be used to verify symbols and to build a local symbol cache in a convenient, noninvasive way. This utility is included with the Debugging Tools for Windows. Visual Studio 2005, 2008 and 2010 can be set up to use the Microsoft Symbol Server http geekswithblogs.net mskoolaid archive 2005 12 17 63418.aspx . The symbol server technology is built into Debugging Tools for Windows. Category Microsoft software Symbol Server Portal Microsoft microsoft software stub programming software stub ... more details
wiktionary stepped stepping Stepping may refer to Walking , one of the main gaits of locomotion among legged animals Stepping, S nderjylland Computing Stepping level , an aspect of microprocessor version designation Stepping debugging , a method of debugging Dance Step dance , generic term for dance styles where the footwork is the most important part of the dance Stepping African American , a percussive dance in which the participant s entire body is used as an instrument See also Step disambiguation Stepping stone disambiguation Mast Stepping Disambiguation de Stepping it Stepping ... more details
Orphan date February 2009 WiDS toolkit is a Application framework framework that used to build large scaled, distributed system . It was developed by Microsoft in 2005. The most uncommon Function computer science function is log based replay. This function can be used in debugging and profiling . WiDS Checker and D3S are two projects on debugging distributed systems, they are both based on WiDS Toolkit. External links http research.microsoft.com research pubs view.aspx?pubid 1398 WiDS an Integrated Toolkit for Distributed System Development http www.usenix.org events nsdi07 tech full papers liu liu.pdf WiDS Checker Combating Bugs in Distributed Systems http research.microsoft.com research pubs view.aspx?type Publication&id 1811 D3S Debugging Deployed Distributed Systems Category Microsoft software network software stub ... more details
debugging default.mspx WinDbg at microsoft.com WinDbg is a multipurposed debugger for Microsoft ... with the more well known, but less powerful, Visual Studio Debugger . WinDbg can be used for debugging ... as Post mortem debugging . WinDbg also has the ability to automatically load Debug symbol debugging ... to creating a symbol tree for a debugging target environment. If a private symbol server is configured, the symbols can be correlated with the source code for the binary. This eases the burden of debugging problems that have various versions of binaries installed on the debugging target by eliminating ... including service packs . Recent versions of WinDbg have been distributed as part of the free Debugging Tools for Windows suite, which shares a common debugging engine between WinDbg and command line ... commands and allow for help in debugging specific scenarios for example, displaying an MSXML document given an IXMLDOMDocument, or debugging the Common Language Runtime Common Language Runtime CLR . These extensions ... only inside Microsoft, most of them are part of the public Debugging Tools for Windows package. The extension model is documented in the help file included with the Debugging Tools for Windows. Coupling with Virtual Machines WinDbg allows debugging Microsoft Windows kernel running on a VMware or Windows ... for VM debugging to Microsoft Windows Windows kernel. analyze The most commonly used extension is analyze ... the debugging of Microsoft .NET Framework .NET code. Psscor2 and Psscor4 is a superset of SOS ... started with windbg part ii.aspx Part 2 http www.microsoft.com whdc devtools debugging default.mspx Debugging Tools for Windows information and free downloads http windbg.info doc 2 windbg a z.html ... and VirtualBox debugging http msdn.microsoft.com en us library bb190764.aspx SOS Debugging Extension ... more details
orphan date February 2010 BUGSYS was a programming system for pattern recognition and preparing animated film s, for IBM 7094 and System 360 computer s. BUGSYS A Programming System for Picture Processing Not for Debugging , R.A. Ledley et al., CACM 9 2 Feb 1966 . FOLDOC Category Domain specific programming languages compu lang stub DEFAULTSORT Bugsys ... more details
QUIKTRAN is a Fortran like, interactive programming language with debugging facilities. References Sammet 1969, p.226. External links http hopl.murdoch.edu.au showlanguage.prx?exp 461&language QUIKTRAN History of Programming Languages QUIKTRAN FOLDOC Category Fortran programming language family Category Procedural programming languages Category Programming languages created in 1964 compu lang stub ... more details
DynInst is a multi platform runtime code patching library developed at the University of Wisconsin Madison and University of Maryland, College Park . It may be useful in the development of performance measurement tools, debuggers, and simulators. The most recent release is Version 7.0. External links http www.dyninst.org DynInst Homepage Category Debugging Category Profilers programming software stub ru DynInst ... more details
The Remedy debugger was the first embedded system level debugger in the world. It offered many features that users take for granted today in the days when having a source level debugger was a luxury. Some of these features include Multiprocessor operation Heterogeneous Distributed Dynamic thread view of the system Synchronized debugging for multiple threads Trace functions Operating system resource displays Source and assembly level debugging It started as an academic research project originally called Melody for debugging the Harmony Operating System . The results were published in a seminal paper on debugging multiprocessors systems. ref Remedy, A Real Time Multiprocessor System Level Debugger, IEEE Symposium on Real Time Systems, December, 1987 ref The current version of Unison Operating System Unison continues to use both gdb and Remedy Debugger. ref http www.rowebots.com products unison Host Development, Deeply Embedded Development and Multiprocessor Products Bot generated title ref ref An Integrated Real Time Multiprocessor Development Environment, Rowe P.K. Pagurek B. Donenfeld A. Graham D., IEEE MONOTECH 87 Conferences, COMPINT Cat. No. 87CH2518 9 ref ref The Integration Toolkit and the Unison Real Time Operating System, Rowe P.K. Graham D. Donenfeld A. Pagurek B., USENIX Association Winter Conference Highlights 1988, Proceedings starting pg 347, 1988 ref References reflist Primarysources date October 2007 Category Debuggers ... more details
Another technique for debugging programs remotely is to use a remote stub . ref http davis.lbl.gov Manuals GDB gdb 17.html SEC140 Debugging with GDB ref Clarify date February 2010 In this case ... remote serial protocol. The file containing these subroutines is called a debugging stub. See also ... Debugging cite , Morgan Kaufmann, 2005. ISBN 1 55860 866 4 External links http www.gnu.org software ... GDB gdb 17.html Debugging with GDB GNU Category Debuggers Category Debugging Category GNU Project ... more details
Merge Firebug software date April 2012 Unreferenced date March 2012 FlashFirebug is a Firefox extension that helps Flash Video developers Debugging debug SWF files on website s. It requires Firebug software Firebug and relies on it to function. FlashFirebug was developed by O Minds and is licensed under the GPLv3 . References references Category Firefox add ons ... more details
multiple issues advert April 2011 one source April 2011 primarysources April 2011 TotalView is a proprietary debugger for C programming language C C and Fortran code that runs on Unix like Operating System operating systems such as Linux and Mac OS X systems, on several platforms. It allows process control down to the single thread computer science thread , the ability to look at data for a single thread or all threads at the same time, and the ability to synchronize threads through breakpoint s. TotalView integrates memory leak detection and other heap based memory allocation heap memory debugging features. Data analysis features help find anomalies and problems in the target program s data, and the combination of visualization and evaluation points lets the user watch data change as the program executes. TotalView includes the ability to test fixes while debugging. It supports parallel programming including Message Passing Interface MPI , Unified Parallel C UPC and OpenMP . It includes sophisticated memory debugging and analysis, reverse debugging stepping backwards to look at older values of variables and CUDA debugging capabilities. In 2007 Etnus, Inc. changed its name to TotalView Technologies, Inc. In 2009 TotalView Technologies was acquired by Rogue Wave company Rogue Wave Software . External links http www.hpcwire.com hpc 347014.html TotalView runs on 98 of the top 100 supercomputers see www.top500.org 2005 in the world http www.roguewave.com http www.roguewave.com Category Debuggers Category Mac OS X programming tools Category Unix programming tools Category Linux programming tools ru Etnus TotalView fr TotalView ja TotalView ... more details
other Dwarf disambiguation DWARF is a widely used, standardized debugging data format . DWARF was originally designed along with Executable and Linkable Format ELF , although it is independent of object file formats. ref name eager cite web url http www.dwarfstd.org doc Debugging 20using 20DWARF.pdf title Introduction to the DWARF Debugging Format accessdate 2007 06 25 author Michael J. Eager year 2007 month February ref The name is a medieval fantasy complement to ELF that has no official meaning, although the backronym Debugging With Attributed Record Formats was later proposed. ref name eager History The first version of DWARF proved to use excessive amounts of storage, and an incompatible successor, DWARF 2, superseded it and added various encoding schemes to reduce data size. DWARF was not immediately successful for instance, when Sun Microsystems adopted ELF as part of their move to Solaris operating system Solaris , they opted to continue using stabs , in an embedding known as stabs in elf . Linux followed suit, and DWARF 2 did not become the default until the late 1990s. The DWARF Workgroup of the Free Standards Group released DWARF version 3 in January 2006, ref cite press release publisher Free Standards Group title DWARF Version 3 Standard Released date January 4, 2006 accessdate 2007 06 25 url http dwarfstd.org PressRelease.php ref adding among other things support for C namespaces, Fortran Fortran 90 Fortran 90 tt allocatable tt data and additional compiler optimization ... June 16, 2010 accessdate 2010 06 24 ref Structure DWARF uses a data structure called a Debugging ... reading Michael Eager, chair of the DWARF Standards Committee, has written an introduction to debugging formats and DWARF 3, Introduction to the DWARF Debugging Format . ref name eager See also stabs Symbol TABle entrieS debugging format References Reflist External links official http dwarfstd.org ... and writing applications using DWARF2, DWARF3. Category Debugging data formats ja DWARF pt DWARF ... more details
target system is required. This is known as in circuit debugging. Furthermore, most new MCUs ... in circuit debugging and programming requirements, the HC08 Family has the monitor mode and the HCS08 ... more details
DDT is a three letter abbreviation that may refer to Sciences DDT , or dichlorodiphenyltrichloroethane, an insecticide Deflagration to detonation transition , a type of explosion Humanities and art DDT zine , a Dadaist literary magazine DDT band , a rock band from Russia Supernaut Serbian band , formerly known as DDT Denkm ler deutscher Tonkunst , a series of editions of German music Sports DDT professional wrestling , a move in professional wrestling Dramatic Dream Team , a Japanese professional wrestling promotion Technology Allinea Distributed Debugging Tool , a debugger produced by Allinea primarily for debugging parallel programs Dynamic debugging technique , a debugger in computer programming Data driven testing , a testing concern in model based testing http code.google.com a eclipselabs.org p ddt D Development Tools , an Integrated Development Environment IDE for the D programming language D programming language. disambig Category Initialisms be cs DDT rozcestn k fr DDT homonymie it DDT nl DDT ja DDT pl DDT ro DDT dezambiguizare ru fi DDT t smennyssivu ... more details
NetBeans BlueJ Edition is an integrated development environment IDE meant to transition students from the introductory IDE BlueJ to the more professional IDE NetBeans . The first release of the IDE is now available for download. NetBeans BlueJ Edition versus BlueJ class wikitable border 1 BlueJ NetBeans BlueJ Edition Object Bench Integral to BlueJ None Interactivity with adhoc classes Inherent in object bench None Compiling programs Uses selected version of Javac.exe Uses selected version of Javac.exe, but with parameter to use Java 1.4 if using a BlueJ project this is fixed by editing the project s .properties file tt main method tt or tt Main class tt Has no effect on program other than creating JAR files Required to run a program BlueJ view Main window. Allows movement of classes, etc. Shows most class relationships. An optional view, only uses images for a simplified list. No movement, no relationships displayed. Debugging Has debugging console. Is buggy and cumbersome for large projects. Has all traditional debugging views. See also BlueJ NetBeans External links http www.bluej.org netbeans index.html Official website at bluej.org http edu.netbeans.org bluej index.html Official website at netbeans.org Category Integrated development environments compu soft stub ... more details
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