77:
1093:(2010 Ultimate edition, 2012 Ultimate, 2013 Ultimate, and 2015 Enterprise edition) offers IntelliTrace reverse debugging for C#, Visual Basic .NET, and some other languages, but not C++. Reverse debuggers also exist for C, C++, Java, Python, Perl, and other languages. Some are open source; some are proprietary commercial software. Some reverse debuggers slow down the target by orders of magnitude, but the best reverse debuggers cause a slowdown of 2× or less. Reverse debugging is very useful for certain types of problems, but is still not commonly used yet.
1380:
1077:, also known as "software flight recording" or "program execution recording", captures application state changes and stores them to disk as each instruction in a program executes. The recording can then be replayed over and over, and interactively debugged to diagnose and resolve defects. Record and replay debugging is very useful for remote debugging and for resolving intermittent, non-deterministic, and other hard-to-reproduce defects.
234:
139:
36:
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936:(ISS), a technique that allows great power in its ability to halt when specific conditions are encountered, but which will typically be somewhat slower than executing the code directly on the appropriate (or the same) processor. Some debuggers offer two modes of operation, full or partial simulation, to limit this impact.
926:
other programs (the "target" program). The main use of a debugger is to run the target program under controlled conditions that permit the programmer to track its execution and monitor changes in computer resources that may indicate malfunctioning code. Typical debugging facilities include the
927:
ability to run or halt the target program at specific points, display the contents of memory, CPU registers or storage devices (such as disk drives), and modify memory or register contents in order to enter selected test data that might be a cause of faulty program execution.
1011:, and tracking the values of variables. Some debuggers have the ability to modify the program state while it is running. It may also be possible to continue execution at a different location in the program to bypass a crash or logical error.
1038:
are shown. Early microcomputers with disk-based storage often benefitted from the ability to diagnose and recover corrupted directory or registry data records, to "undelete" files marked as deleted, or to crack file password protection.
990:
Typically, debuggers offer a query processor, a symbol resolver, an expression interpreter, and a debug support interface at its top level. Debuggers also offer more sophisticated functions such as running a program
1172:
makes it easier to write debugger software that runs on the same CPU as the software being debugged; such a CPU can execute the inner loops of the program under test at full speed, and still remain under debugger
1179:
allows an external hardware debugger to reprogram a system under test (for example, adding or removing instruction breakpoints). Many systems with such ISP support also have other hardware debug support.
1089:", also known as "historical debugging" or "backwards debugging". These debuggers make it possible to step a program's execution backwards in time. Various debuggers include this feature.
1496:
O'Callahan, Robert; Jones, Chris; Froyd, Nathan; Huey, Kyle; Noll, Albert; Partush, Nimrod (2017). "Engineering Record And Replay For
Deployability Extended Technical Report".
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are programs specifically designed to be cracked or debugged. These programs allow those with debuggers to practice their debugging ability without getting into legal trouble.
1113:
Some debuggers operate on a single specific language while others can handle multiple languages transparently. For example, if the main target program is written in
882:
1244:. Some GUI debugger front-ends are designed to be compatible with a variety of CLI-only debuggers, while others are targeted at one specific debugger.
1240:(GUI) easier and more productive. This is the reason for visual front-ends, that allow users to monitor and control subservient CLI-only debuggers via
836:
982:(unless it also has online access to the original source code and can display the appropriate section of code from the assembly or compilation).
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958:. When the program "traps" or reaches a preset condition, the debugger typically shows the location in the original code if it is a
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1558:
Sanjeev Kumar
Aggarwal; M. Sarath Kumar (2003). "Debuggers for Programming Languages". In Y.N. Srikant; Priti Shankar (eds.).
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or invalid data. For example, the program might have tried to use an instruction not available on the current version of the
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Debugging is often used to illegally crack or pirate software, which is usually illegal even when done non-maliciously.
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Some of the most capable and popular debuggers implement only a simple command line interface (CLI)—often to maximize
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also allow users to interact with the program, changing the history if desired, and watch how the program responds.
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The same functionality which makes a debugger useful for correcting bugs allows it to be used as a
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debugger API used in a range of IDEs: Eclipse IDE (Java), Nodeclipse (JavaScript)
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and minimize resource consumption. Developers typically consider debugging via a
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Most modern microprocessors have at least one of these features in their
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The
Compiler Design Handbook: Optimizations and Machine Code Generation
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How
Debuggers Work: Algorithms, Data Structures, and Architecture
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943:" occurs when the program cannot normally continue because of a
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The code to be examined might alternatively be running on an
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Hardware support for single-stepping a program, such as the
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Some debuggers also incorporate memory protection to avoid
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are popular extensions to debugger engines that provide
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Computer program used to test and debug other programs
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access to hardware debug interfaces such as those on
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258:. Unsourced material may be challenged and removed.
1582:
1101:In addition to the features of reverse debuggers,
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1633:
1621:OpenRCE: Various Debugger Resources and Plug-ins
1170:Popek and Goldberg virtualization requirements
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165:introducing citations to additional sources
1042:Most mainstream debugging engines, such as
64:Learn how and when to remove these messages
883:
869:
1501:
1085:Some debuggers include a feature called "
336:Learn how and when to remove this message
318:Learn how and when to remove this message
121:Learn how and when to remove this message
1096:
894:
155:Relevant discussion may be found on the
84:This article includes a list of general
1519:"Why is reverse debugging rarely used?"
14:
1634:
1410:List of tools for static code analysis
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1108:
951:or attempted to access unavailable or
837:Electrical and electronics engineering
1543:Aggarwal and Kumar 2003, pp. 299-301.
1141:. This may be extremely important in
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1128:
1080:
256:adding citations to reliable sources
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1182:Hardware support for code and data
968:integrated development environments
24:
1168:An instruction set that meets the
90:it lacks sufficient corresponding
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763:Standards and bodies of knowledge
45:This article has multiple issues.
1486:Aggarwal and Kumar, pp. 307-312.
1477:Aggarwal and Kumar 2003, p. 301.
1378:
1307:Microsoft Visual Studio Debugger
1270:Some widely used debuggers are:
232:
148:relies largely or entirely on a
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34:
1277:, formerly known as Allinea DDT
855:Outline of software development
243:needs additional citations for
53:or discuss these issues on the
1581:Jonathan B. Rosenberg (1996).
1537:
1517:Philip Claßen; Undo Software.
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1149:Hardware support for debugging
1066:, and visualization features.
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1:
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1616:Debugging Tools for Windows
1468:Aggarwal and Kumar, p. 302.
1386:Computer programming portal
1371:
1346:Dynamic debugging technique
1075:Record and replay debugging
1070:Record and replay debugging
985:
10:
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1550:
1523:Programmers Stack Exchange
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1248:Ethical or legal debugging
1157:to make debugging easier:
618:Software quality assurance
1024:digital rights management
978:it shows the line in the
976:machine-language debugger
933:instruction set simulator
1628:MSDN, Visual Studio 2015
1242:graphical user interface
1238:graphical user interface
1200:processors or using the
1050:, provide console-based
1036:instruction path lengths
603:Configuration management
1562:. Boca Raton, Florida:
1395:Comparison of debuggers
1091:Microsoft Visual Studio
1052:command line interfaces
966:, commonly now seen in
827:Artificial intelligence
105:more precise citations.
1652:Utility software types
1352:On-line Debugging Tool
1143:transaction processing
903:
751:Infrastructure as code
597:Supporting disciplines
1591:John Wiley & Sons
1525:. Stack Exchange, Inc
1440:Rubber duck debugging
1430:Time travel debugging
1177:In-system programming
1103:time travel debugging
1097:Time Travel debugging
960:source-level debugger
898:
608:Deployment management
1566:. pp. 295–327.
1032:performance analyzer
428:Paradigms and models
357:Software development
252:improve this article
161:improve this article
1361:debuggers include:
1341:debuggers include:
1228:Debugger front-ends
1109:Language dependency
1056:Debugger front-ends
351:Part of a series on
1298:- the GNU debugger
1135:storage violations
972:low-level debugger
904:
746:Release automation
623:Project management
1573:978-0-8493-1240-3
1266:List of debuggers
1260:List of debuggers
1129:Memory protection
1119:assembly language
1087:reverse debugging
1081:Reverse debugging
1064:program animation
1016:software cracking
1001:program animation
964:symbolic debugger
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