gcov
E59599
gcov is a test coverage analysis tool used with GCC to measure and report how much of a program’s source code is executed during runtime.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T477813 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: gcov Context triple: [GNU Compiler Collection, includesTool, gcov]
-
A.
GNU Compiler Collection
The GNU Compiler Collection (GCC) is a widely used, free and open-source compiler system that supports numerous programming languages and platforms, forming a core component of the GNU toolchain and much of the open-source software ecosystem.
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B.
GNU Debugger
GNU Debugger (GDB) is a widely used free and open-source debugging tool for programs written in languages like C, C++, and Fortran, allowing developers to inspect and control program execution.
-
C.
GLC
GLC is the National Rail station code for Glasgow Central, a major railway terminus in Glasgow, Scotland.
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D.
GML
GML (Geography Markup Language) is an XML-based standard developed by the Open Geospatial Consortium for modeling, transporting, and storing geographic information and spatial features.
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E.
GOC
GOC is the standardised set of spelling and writing rules used for modern Scottish Gaelic.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: gcov Target entity description: gcov is a test coverage analysis tool used with GCC to measure and report how much of a program’s source code is executed during runtime.
-
A.
GNU Compiler Collection
The GNU Compiler Collection (GCC) is a widely used, free and open-source compiler system that supports numerous programming languages and platforms, forming a core component of the GNU toolchain and much of the open-source software ecosystem.
-
B.
GNU Debugger
GNU Debugger (GDB) is a widely used free and open-source debugging tool for programs written in languages like C, C++, and Fortran, allowing developers to inspect and control program execution.
-
C.
GLC
GLC is the National Rail station code for Glasgow Central, a major railway terminus in Glasgow, Scotland.
-
D.
GML
GML (Geography Markup Language) is an XML-based standard developed by the Open Geospatial Consortium for modeling, transporting, and storing geographic information and spatial features.
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E.
GOC
GOC is the standardised set of spelling and writing rules used for modern Scottish Gaelic.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
code coverage analysis tool
ⓘ
command-line program ⓘ free software ⓘ software testing tool ⓘ |
| category |
software development tools
ⓘ
software testing ⓘ |
| developedBy | GNU Project ⓘ |
| distribution | bundled with GCC toolchain ⓘ |
| documentation | GNU GCC manual ⓘ |
| executionModel | analyzes data collected at runtime ⓘ |
| granularity |
per-branch coverage
ⓘ
per-source-line coverage ⓘ |
| inputFormat |
GCC-generated .gcda files
ⓘ
GCC-generated .gcno files ⓘ |
| invokedBy | gcov command ⓘ |
| license | GNU General Public License ⓘ |
| measures |
branch coverage
ⓘ
line coverage ⓘ |
| outputFormat |
annotated source files
ⓘ
branch coverage information ⓘ line-by-line execution counts ⓘ |
| partOf | GNU Compiler Collection ⓘ |
| platform |
Linux
ⓘ
Unix-like systems ⓘ Windows ⓘ |
| primaryFunction |
assist in test coverage analysis
ⓘ
measure code coverage ⓘ report executed source lines ⓘ |
| relatedTool |
gcovr
ⓘ
linked to:
gcov
lcov ⓘ |
| requires |
-fprofile-arcs
ⓘ
-ftest-coverage ⓘ compilation with GCC coverage options ⓘ |
| shortName | gcov ⓘ |
| supports |
per-file coverage statistics
ⓘ
per-function coverage statistics ⓘ summary coverage statistics ⓘ |
| supportsLanguage |
C
ⓘ
C++ ⓘ |
| typicalUsage | run program to generate coverage data then run gcov to analyze ⓘ |
| usedFor |
identifying untested code paths
ⓘ
improving test suites ⓘ regression testing support ⓘ |
| usedWith |
GCC
ⓘ
linked to:
GNU Compiler Collection
|
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: gcov Description of subject: gcov is a test coverage analysis tool used with GCC to measure and report how much of a program’s source code is executed during runtime.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: gcov