#!/usr/bin/perl
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# Copyright (C) 2018 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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use strict;
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use Getopt::Long;
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use Pod::Usage;
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=pod
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=head1 DESCRIPTION
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This script parses API violations from C<adb logcat>. Output is in CSV format
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with columns C<package>, C<symbol>, C<list>.
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The package name is mapped from a PID, parsed from the same log. To ensure you
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get all packages names, you should process the logcat from device boot time.
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=head1 SYNOPSIS
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adb logcat | perl find_api_violations.pl > violations.csv
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cat bugreport.txt | perl find_api_violations.pl --bugreport > violations.csv
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=head1 OPTIONS
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=over
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=item --[no]lightgrey
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(Don't) show light grey list accesses (default true)
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=item --[no]darkgrey
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(Don't) show dark grey list accesses (default true)
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=item --[no]black
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(Don't) show black list accesses (default true)
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=item --bugreport|-b
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Process a bugreport, rather than raw logcat
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=item --short|-s
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Output API signatures only, don't include CSV header/package names/list name.
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=item --help
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=back
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=cut
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my $lightgrey = 1;
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my $darkgrey = 1;
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my $black = 1;
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my $bugreport = 0;
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my $short = 0;
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my $help = 0;
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GetOptions("lightgrey!" => \$lightgrey,
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"darkgrey!" => \$darkgrey,
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"black!" => \$black,
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"bugreport|b" => \$bugreport,
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"short|s" => \$short,
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"help" => \$help)
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or pod2usage(q(-verbose) => 1);
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pod2usage(q(-verbose) => 2) if ($help);
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my $in;
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if ($bugreport) {
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my $found_main = 0;
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while (my $line = <>) {
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chomp $line;
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if ($line =~ m/^------ SYSTEM LOG /) {
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$found_main = 1;
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last;
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}
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}
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if (!$found_main) {
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die "Couldn't find main log in bugreport\n";
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}
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}
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my $procmap = {};
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print "package,symbol,list\n" unless $short;
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while (my $line = <>) {
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chomp $line;
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last if $bugreport and $line =~ m/^------ \d+\.\d+s was the duration of 'SYSTEM LOG' ------/;
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next if $line =~ m/^--------- beginning of/;
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unless ($line =~ m/^\d{2}-\d{2} \d{2}:\d{2}:\d{2}.\d{3}\s+(?:\w+\s+)?(\d+)\s+(\d+)\s+([VWIDE])\s+(.*?): (.*)$/) {
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die "Cannot match line: $line\n";
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next;
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}
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my ($pid, $tid, $class, $tag, $msg) = ($1, $2, $3, $4, $5);
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if ($tag eq "ActivityManager" && $msg =~ m/^Start proc (\d+):(.*?) for /) {
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my ($new_pid, $proc_name) = ($1, $2);
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my $package;
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if ($proc_name =~ m/^(.*?)(:.*?)?\/(.*)$/) {
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$package = $1;
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} else {
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$package = $proc_name;
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}
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$procmap->{$new_pid} = $package;
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}
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if ($msg =~ m/Accessing hidden (\w+) (L.*?) \((.*list), (.*?)\)/) {
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my ($member_type, $symbol, $list, $access_type) = ($1, $2, $3, $4);
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my $package = $procmap->{$pid} || "unknown($pid)";
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if (($list =~ m/light/ && $lightgrey)
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|| ($list =~ m/dark/ && $darkgrey)
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|| ($list =~ m/black/ && $black)) {
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if ($short) {
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print "$symbol\n";
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} else {
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print "$package,$symbol,$list\n"
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}
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}
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}
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}
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