Mike's Blog - Links For Me In The Cloud

 

How To Use llvm-cov Instrumenting your code for llvm-cov See also: https://llvm.org/docs/CommandGuide/llvm-cov.html - Build the code with code coverage turned on: Compile with the -fprofile-arcs and -ftest-coverage options to add the instrumentation. - Run your program, this creates a default.profraw file: % ./program - Run llvm-profdata to create a default.profdata file: % llvm-profdata merge -sparse default.profraw -o default.profdata - Run llvm-cov show for the module you care about: % llvm-cov show -output-dir=output --format=html -instr-profile=./default.profdata ./program /full/path/to/source/module - Now in the output directory you will find an index.txt file, the coverage numbers are in there. - If you want to get coverage for a directory like player or media, you need to specify the .cpp and .hpp files: % llvm-cov show -use-color=0 -output-dir=output -instr-profile=./default.profdata ./program /full/paht/to/source/module/*.[ch]pp