llvm-cov - emit coverage information — LLVM 3.3 documentation

# llvm-cov - emit coverage information

## SYNOPSIS

llvm-cov [-gcno=filename] [-gcda=filename] [dump]

## DESCRIPTION

The experimental llvm-cov tool reads in description file generated by compiler and coverage data file generated by instrumented program. This program assumes that the description and data file uses same format as gcov files.

## OPTIONS

`-gcno``=filename`

  This option selects input description file generated by compiler while instrumenting program.

`-gcda``=filename`

  This option selects coverage data file generated by instrumented compiler.

`-dump```

  This options enables output dump that is suitable for a developer to help debug llvm-cov itself.

## EXIT STATUS

llvm-cov returns 1 if it cannot read input files. Otherwise, it exits with zero.