snippetbashTip
gcov — Code coverage analysis and profiling tool that discovers untested parts of a program. Also displays
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commandanalysisandgcovclicodeprofilingcoverage
linux
Problem
How to use the
gcov command: Code coverage analysis and profiling tool that discovers untested parts of a program. Also displays a copy of source code annotated with execution frequencies of code segments. More information: <https://gcc.gnu.org/onlinedocs/gcc/Invoking-Gcov.html>.Solution
gcov — Code coverage analysis and profiling tool that discovers untested parts of a program. Also displays a copy of source code annotated with execution frequencies of code segments. More information: <https://gcc.gnu.org/onlinedocs/gcc/Invoking-Gcov.html>.Generate a coverage report named
file.cpp.gcov:gcov {{path/to/file.cpp}}Write individual execution counts for every basic block:
gcov {{[-a|--all-blocks]}} {{path/to/file.cpp}}Write branch frequencies to the output file and print summary information to
stdout as a percentage:gcov {{[-b|--branch-probabilities]}} {{path/to/file.cpp}}Write branch frequencies as the number of branches taken, rather than the percentage:
gcov {{[-c|--branch-counts]}} {{path/to/file.cpp}}Do not create a
gcov output file:gcov {{[-n|--no-output]}} {{path/to/file.cpp}}Write file level as well as function level summaries:
gcov {{[-f|--function-summaries]}} {{path/to/file.cpp}}Code Snippets
Generate a coverage report named `file.cpp.gcov`
gcov {{path/to/file.cpp}}Write individual execution counts for every basic block
gcov {{[-a|--all-blocks]}} {{path/to/file.cpp}}Write branch frequencies to the output file and print summary information to `stdout` as a percentage
gcov {{[-b|--branch-probabilities]}} {{path/to/file.cpp}}Write branch frequencies as the number of branches taken, rather than the percentage
gcov {{[-c|--branch-counts]}} {{path/to/file.cpp}}Do not create a `gcov` output file
gcov {{[-n|--no-output]}} {{path/to/file.cpp}}Context
tldr-pages: linux/gcov
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