mtr_gcov.pl

# -*- cperl -*-
# Copyright (c) 2004, 2025, Oracle and/or its affiliates.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License, version 2.0,
# as published by the Free Software Foundation.
#
# This program is designed to work with certain software (including
# but not limited to OpenSSL) that is licensed under separate terms,
# as designated in a particular file or component or in included license
# documentation.  The authors of MySQL hereby grant you an additional
# permission to link the program and your derivative works with the
# separately licensed software that they have either included with
# the program or referenced in the documentation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License, version 2.0, for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA

# This is a library file used by the Perl version of mysql-test-run,
# and is part of the translation of the Bourne shell script with the
# same name.

use strict;

sub gcov_prepare ($) {
  my ($dir) = @_;
  print "Purging gcov information from '$dir'...\n";

  system("find $dir -name \*.gcov -o -name \*.da" .
         " -o -name \*.gcda | grep -v 'README.gcov\$' | xargs rm");
}

# Collect gcov statistics.
#
# Arguments:
#   $dir       basedir, normally build directory
#   $gcov      gcov utility program [path] name
#   $gcov_msg  message file name
#   $gcov_err  error file name
sub gcov_collect ($$$) {
  my ($dir, $gcov, $gcov_msg, $gcov_err) = @_;

  # Get current directory to return to later.
  my $start_dir = cwd();

  print "Collecting source coverage info using '$gcov'...\n";
  -f "$dir/$gcov_msg" and unlink("$dir/$gcov_msg");
  -f "$dir/$gcov_err" and unlink("$dir/$gcov_err");

  my @dirs = `find "$dir" -type d -print | sort`;

  foreach my $d (@dirs) {
    chomp($d);
    chdir($d) or next;

    my @flist = glob("*.*.gcno");
    print("Collecting in '$d'...\n") if @flist;
    foreach my $f (@flist) {
      system("$gcov $f 2>>$dir/$gcov_err >>$dir/$gcov_msg");
    }

    chdir($start_dir);
  }

  print "gcov info in $dir/$gcov_msg, errors in $dir/$gcov_err\n";
}

1;