Difference between revisions of "Valgrind"
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|Short description=Memory debugger | |Short description=Memory debugger | ||
|Full description=Valgrind finds memory-management problems by checking all reads and writes of memory are checked, and intercepting all calls to malloc/new/free/delete. As a result, Valgrind can detect problems like the use of uninitialised memory, reading/writing memory after it has been free'd, reading/writing off the end of malloc'd blocks, reading/writing inappropriate areas on the stack, memory leaks, and passing of uninitialised and/or unaddressible memory to system calls. Valgrind tracks each byte of memory with nine status bits: one tracks addressibility, and the other eight validity. As a result, it can detect the use of single uninitialised bits, and does not report spurious errors on bitfield operations. Valgrind debugs almost any dynamically-linked ELF x86 executable without modification or recompilation. | |Full description=Valgrind finds memory-management problems by checking all reads and writes of memory are checked, and intercepting all calls to malloc/new/free/delete. As a result, Valgrind can detect problems like the use of uninitialised memory, reading/writing memory after it has been free'd, reading/writing off the end of malloc'd blocks, reading/writing inappropriate areas on the stack, memory leaks, and passing of uninitialised and/or unaddressible memory to system calls. Valgrind tracks each byte of memory with nine status bits: one tracks addressibility, and the other eight validity. As a result, it can detect the use of single uninitialised bits, and does not report spurious errors on bitfield operations. Valgrind debugs almost any dynamically-linked ELF x86 executable without modification or recompilation. | ||
| + | |Homepage URL=http://valgrind.org/ | ||
|User level=none | |User level=none | ||
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|Computer languages=C | |Computer languages=C | ||
|Documentation note=User manual available in HTML format from http://valgrind.org/docs/manual/manual.html | |Documentation note=User manual available in HTML format from http://valgrind.org/docs/manual/manual.html | ||
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|Related projects=Electric_Fence,MemCheck_Deluxe,halloc,Memtest86,KCachegrind | |Related projects=Electric_Fence,MemCheck_Deluxe,halloc,Memtest86,KCachegrind | ||
|Keywords=development,programming,debugging,memory,valgrind,malloc | |Keywords=development,programming,debugging,memory,valgrind,malloc | ||
| − | | | + | |Version identifier=3.12.0 |
| − | |Last review by= | + | |Version date=2016/10/20 |
| − | |Last review date= | + | |Version status=stable |
| + | |Version download=http://valgrind.org/downloads/valgrind-3.12.0.tar.bz2 | ||
| + | |Version comment=3.12.0 stable released 2016-10-20 | ||
| + | |Last review by=Alejandroindependiente | ||
| + | |Last review date=2017/01/08 | ||
|Submitted by=Database conversion | |Submitted by=Database conversion | ||
|Submitted date=2011-04-01 | |Submitted date=2011-04-01 | ||
| − | | | + | |Status= |
| − | | | + | |Is GNU=No |
| − | | | + | |License verified date=2002-07-03 |
| − | | | + | }} |
| + | {{Project license | ||
| + | |License=GPLv2 | ||
| + | |License verified by=Janet Casey | ||
|License verified date=2002-07-03 | |License verified date=2002-07-03 | ||
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}} | }} | ||
{{Person | {{Person | ||
| + | |Real name=Julian Seward | ||
|Role=Maintainer | |Role=Maintainer | ||
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|Email=jseward@acm.org | |Email=jseward@acm.org | ||
|Resource URL= | |Resource URL= | ||
}} | }} | ||
{{Person | {{Person | ||
| + | |Real name=Daniel Berlin | ||
|Role=Contributor | |Role=Contributor | ||
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|Resource URL= | |Resource URL= | ||
}} | }} | ||
{{Person | {{Person | ||
| + | |Real name=Dirk Mueller | ||
|Role=Contributor | |Role=Contributor | ||
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|Resource URL= | |Resource URL= | ||
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{{Person | {{Person | ||
| + | |Real name=Michael Matz | ||
|Role=Contributor | |Role=Contributor | ||
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|Resource URL= | |Resource URL= | ||
}} | }} | ||
{{Person | {{Person | ||
| + | |Real name=Nicholas Nethercote | ||
|Role=Contributor | |Role=Contributor | ||
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|Email=njn25@cam.ac.uk | |Email=njn25@cam.ac.uk | ||
|Resource URL= | |Resource URL= | ||
}} | }} | ||
{{Person | {{Person | ||
| + | |Real name=Simon Hausmann | ||
|Role=Contributor | |Role=Contributor | ||
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|Resource URL= | |Resource URL= | ||
}} | }} | ||
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|Software-development=debugging | |Software-development=debugging | ||
|Use=software-development | |Use=software-development | ||
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}} | }} | ||
{{Software prerequisite | {{Software prerequisite | ||
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|Prerequisite description=gdb | |Prerequisite description=gdb | ||
}} | }} | ||
| + | {{Featured}} | ||
Revision as of 19:36, 7 January 2017
Valgrind
http://valgrind.org/
Memory debugger
Valgrind finds memory-management problems by checking all reads and writes of memory are checked, and intercepting all calls to malloc/new/free/delete. As a result, Valgrind can detect problems like the use of uninitialised memory, reading/writing memory after it has been free'd, reading/writing off the end of malloc'd blocks, reading/writing inappropriate areas on the stack, memory leaks, and passing of uninitialised and/or unaddressible memory to system calls. Valgrind tracks each byte of memory with nine status bits: one tracks addressibility, and the other eight validity. As a result, it can detect the use of single uninitialised bits, and does not report spurious errors on bitfield operations. Valgrind debugs almost any dynamically-linked ELF x86 executable without modification or recompilation.
Licensing
License
Verified by
Verified on
Notes
Leaders and contributors
| Contact(s) | Role |
|---|---|
| Nicholas Nethercote | Contributor |
| Julian Seward | Maintainer |
| Michael Matz | Contributor |
| Daniel Berlin | Contributor |
| Dirk Mueller | Contributor |
| Simon Hausmann | Contributor |
Resources and communication
| Audience | Resource type | URI |
|---|---|---|
| Debian (Ref) | https://tracker.debian.org/pkg/valgrind | |
| Developer | Mailing List Info/Archive | http://lists.sourceforge.net/mailman/listinfo/valgrind-developers |
| Bug Tracking | mailto:jseward@acm.org | |
| Support | Mailing List Info/Archive | http://lists.sourceforge.net/mailman/listinfo/valgrind-users |
| Help | Mailing List Info/Archive | http://lists.sourceforge.net/mailman/listinfo/valgrind-announce |
Software prerequisites
| Kind | Description |
|---|---|
| Weak prerequisite | gdb |
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.
The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.