File: gen_events.pl

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#!/usr/bin/perl

use strict;
use warnings;

my $arch;
my $key;
my $optkey = "";
my $eventId;
my $eventname;
my $limit;
my $umask;
my $cmask;
my $cfg;
my $opts = "";
my $defoptkey = "";
my $defopts = "";
my $num_events=0;
my @events = ();

if (! $ARGV[0] ){
    die "ERROR: Usage: perl ./$0 perfmon_<ARCH>_events.txt perfmon_<ARCH>_events.h\n\n";
}

my $IN_filename  = $ARGV[0];
my $OUT_filename = $ARGV[1];

if ($IN_filename =~ /perfmon_([A-Za-z0-9]+)_events\.txt/){
    $arch = $1;
} else {
    die "The input filename must follow the scheme perfmon_<ARCH>_events.txt\n";
}

open INFILE,"<$IN_filename";

while (<INFILE>) {

    if (/^#/) {
        # Skip comment
    }elsif (/(EVENT_[A-Z0-9_]*)[ ]+(0x[A-F0-9]+)[ ]+([A-Z0-9|]+)/) {
        $eventname = $1;
        $eventId = $2;
        $limit = $3;
        $opts = "EVENT_OPTION_NONE_MASK";
    } elsif (/UMASK_([A-Z0-9_]*)[ ]*(0x[A-F0-9]+)[ ]*(0x[A-F0-9]+)[ ]*(0x[A-F0-9]+)/) {
        $key   = $1;
        $umask = $2;
        $cfg   = $3;
        $cmask = $4;
        my $defaultopts = "{";
        my $nropts = 0;
        if ($key ne $optkey or $optkey eq "")
        {
            $opts = "EVENT_OPTION_NONE_MASK";
        }
        if ($key =~ m/$defoptkey[A-Z0-9_]*/)
        {
            my @optlist = split(",", $defopts);
            foreach my $opt (@optlist)
            {
                my @tmplist = split("=", $opt);
                $defaultopts = $defaultopts."{".$tmplist[0].",".$tmplist[1]."},";
                $nropts++;
            }
        }
        if (length($defaultopts) > 1)
        {
            substr($defaultopts,length($defaultopts)-1,1) = '}';
        }
        else
        {
            $defaultopts = $defaultopts."}";
        }
        push(@events,{name=>$key,
                limit=>$limit,
                eventId=>$eventId,
                cfg=>$cfg,
                cmask=>$cmask,
                mask=>$umask,
                nropts=>$nropts,
                opts=>$opts,
                defopts=>$defaultopts});
        $num_events++;
    } elsif (/UMASK_([A-Z0-9_]*)[ ]*(0x[A-F0-9]+)/) {
        $key = $1;
        $umask = $2;
        my $defaultopts = "{";
        my $nropts = 0;
        if ($key ne $optkey or $optkey eq "")
        {
            $opts = "EVENT_OPTION_NONE_MASK"
        }
        if ($key =~ m/$defoptkey[A-Z0-9_]*/)
        {
            my @optlist = split(",", $defopts);
            foreach my $opt (@optlist)
            {
                my @tmplist = split("=", $opt);
                $defaultopts = $defaultopts."{".$tmplist[0].",".$tmplist[1]."},";
                $nropts++;
            }
        }
        if (length($defaultopts) > 1)
        {
            substr($defaultopts,length($defaultopts)-1,1) = '}';
        }
        else
        {
            $defaultopts = $defaultopts."}";
        }
        push(@events,{name=>$key,
                limit=>$limit,
                eventId=>$eventId,
                cfg=>0x00,
                cmask=>0x00,
                mask=>$umask,
                nropts=>$nropts,
                opts=>$opts,
                defopts=>$defaultopts});
        $num_events++;
    }
    elsif (/DEFAULT_OPTIONS_([A-Z0-9_]*)[ ]*([xA-Z0-9_=,]*)/) {
        $defoptkey = $1;
        $defopts = $2;
    } elsif (/OPTIONS_([A-Z0-9_]*)[ ]*([A-Z0-9_\|]+)/) {
        $optkey = $1;
        $opts = $2;
    }
}
close INFILE;

my $ucArch = uc($arch);
my $delim;
$delim = "";


open OUTFILE,">$OUT_filename";
print OUTFILE "/* DONT TOUCH: GENERATED FILE! */\n\n";
print OUTFILE "#define NUM_ARCH_EVENTS_$ucArch $num_events\n\n";
print OUTFILE "static PerfmonEvent  ".$arch."_arch_events[NUM_ARCH_EVENTS_$ucArch] = {\n";

foreach my $event (@events) {
    print OUTFILE <<END;
$delim {\"$event->{name}\", \"$event->{limit}\", $event->{eventId},$event->{mask},$event->{cfg},$event->{cmask},$event->{nropts},$event->{opts},$event->{defopts}}
END
    $delim = ',';
}

print  OUTFILE "};\n";
close OUTFILE;