x86_64-linux-gnu-gcov-tool (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609 Copyright (C) 2014-2015 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Usage: x86_64-linux-gnu-gcov-tool [OPTION]... SUB_COMMAND [OPTION]... Offline tool to handle gcda counts -h, --help Print this help, then exit -v, --version Print version number, then exit merge [options] <dir1> <dir2> Merge coverage file contents -v, --verbose Verbose mode -o, --output <dir> Output directory -w, --weight <w1,w2> Set weights (float point values) rewrite [options] <dir> Rewrite coverage file contents -v, --verbose Verbose mode -o, --output <dir> Output directory -s, --scale <float or simple-frac> Scale the profile counters -n, --normalize <long long> Normalize the profile overlap [options] <dir1> <dir2> Compute the overlap of two profiles -v, --verbose Verbose mode -h, --hotonly Only print info for hot objects/functions -f, --function Print function level info -F, --fullname Print full filename -o, --object Print object level info -t <float>, --hot_threshold <float> Set the threshold for hotness For bug reporting instructions, please see: <file:///usr/share/doc/gcc-5/README.Bugs>.