michael@0: #!/usr/bin/perl
michael@0: # This Source Code Form is subject to the terms of the Mozilla Public
michael@0: # License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0: # file, You can obtain one at http://mozilla.org/MPL/2.0/.
michael@0: 
michael@0: 
michael@0: # split-profile.pl Documentation:
michael@0: # 
michael@0: # This script uses jprof's includes (-i) and excludes (-e) options to
michael@0: # split profiles into segments.  It takes as input a single text file,
michael@0: # and from that text file creates a series of jprof profiles in the
michael@0: # directory in which it is run.  It expects the application binaries
michael@0: # with which the profile was made, including jprof, and the jprof
michael@0: # profile data, to be in a directory called "bin" that is a subdirectory
michael@0: # of the current directory, and it will output the profiles into the
michael@0: # current directory.
michael@0: #
michael@0: # The input file format looks like the following:
michael@0: #
michael@0: #   poll g_main_poll
michael@0: #   GetRuleCascade CSSRuleProcessor::GetRuleCascade(nsPresContext *, nsIAtom *)
michael@0: #   RuleProcessorData RuleProcessorData::RuleProcessorData(nsPresContext *, nsIContent *, nsRuleWalker *, nsCompatibility *)
michael@0: #
michael@0: # From this input file, the script will construct a profile called
michael@0: # 00.html that contains the whole profile, a profile called 01-poll.html
michael@0: # that includes only stacks with g_main_poll, a profile called
michael@0: # 02-GetRuleCascade.html that includes only stacks that have
michael@0: # GetRuleCascade and do not have g_main_poll, a profile called
michael@0: # 03-RuleProcessorData.html that includes only stacks that have the
michael@0: # RuleProcessorData constructor and do not have GetRuleCascade or
michael@0: # g_main_poll, and a profile called 04.html that includes only stacks
michael@0: # that do not have any of the three functions in them.
michael@0: #
michael@0: # This means that all of the segments of the profile, except 00.html,
michael@0: # are mutually exclusive.  Thus clever ordering of the functions in the
michael@0: # input file can lead to a logical splitting of the profile into
michael@0: # segments.
michael@0: 
michael@0: 
michael@0: use strict;
michael@0: 
michael@0: my @names;
michael@0: my @sigs;
michael@0: 
michael@0: sub read_info($) {
michael@0:     my ($fname) = @_;
michael@0: 
michael@0:     open(INFO, "<$fname");
michael@0:     my $i = 0;
michael@0:     while (<INFO>) {
michael@0:         chop;
michael@0:         my $line = $_;
michael@0:         my $idx = index($line, " ");
michael@0:         my $name = substr($line, 0, $idx);
michael@0:         my $sig = substr($line, $idx+1);
michael@0: 
michael@0:         $names[$i] = $name;
michael@0:         $sigs[$i] = $sig;
michael@0:         ++$i;
michael@0:     }
michael@0: }
michael@0: 
michael@0: sub run_profile($$) {
michael@0:     my ($options, $outfile) = @_;
michael@0: 
michael@0:     print  "./jprof$options mozilla-bin jprof-log > ../$outfile.html\n";
michael@0:     system "./jprof$options mozilla-bin jprof-log > ../$outfile.html";
michael@0: }
michael@0: 
michael@0: sub run_profiles() {
michael@0:     run_profile("", "00");
michael@0: 
michael@0:     for (my $i = 0; $i <= $#names + 1; ++$i) {
michael@0:         my $options = "";
michael@0:         for (my $j = 0; $j < $i; ++$j) {
michael@0:             $options .= " -e\"$sigs[$j]\"";
michael@0:         }
michael@0:         if ($i <= $#names) {
michael@0:             $options .= " -i\"$sigs[$i]\"";
michael@0:         }
michael@0:         my $num;
michael@0:         my $n = $i + 1;
michael@0:         if ($n < 10) {
michael@0:             $num = "0$n";
michael@0:         } else {
michael@0:             $num = "$n";
michael@0:         }
michael@0:         if ($i <= $#names) {
michael@0:             run_profile($options, "$num-$names[$i]");
michael@0:         } else {
michael@0:             run_profile($options, "$num");
michael@0:         }
michael@0:     }
michael@0: }
michael@0: 
michael@0: ($#ARGV == 0) || die "Usage: split-profile.pl <info-file>\n";
michael@0: 
michael@0: read_info($ARGV[0]);
michael@0: chdir "bin" || die "Can't change directory to bin.";
michael@0: run_profiles();