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シンボリケート
クラッシュログを人間が読めるようになるまで
俺コン 2018 Summer
Day.1
※クラッシュログを使ったデバッグ手法については話しません！
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About Me
• ひろん（一宮 浩教）
• Twitter:
@hironytic
• GitHub:
https://github.com/hironytic
• 株式会社MetaMoJi
徳島在住エンジニア
͍͚ͬͳʔ͍τʔΫτʔΫࢲɺͻΖΜɻࠓiOSDCͷLTʹԠืͨ͠ͷ✨Ͱ
iOSDCڝٕLTΦʔσΟΤϯε͍ͬͺ͍͍Δ͔Βۓுͯ͠͠ΌΕͳ͍Αʔ͋ɺͦ
͏ͩAVSpeechSynthesizerͪΌΜͱPDF Kit͘ΜʹཔΊɺΘΓʹൃදͯ͘͠ΕΔΜ
͡Όͳ͍ʁࢲ͋ͬͨ·͍͍ʔ…ͬͯຊʹ࠾͞ΕͨΒͲ͏͠Α͏࣍ճʮશ෦iOSʹ
͠ΌΒͤͪΌ͑ʂʯָ͓͠Έʹ
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アジェンダ
• クラッシュログとシンボリケート
• シンボリケート失敗例とその原因の究明
• クラッシュログのねつ造
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第１部
出会い編
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パン ＋ 衝突 ＝ 恋に落ちる
(クラッシュ)
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身近なクラッシュ
• 自社プロダクトを通常利用していたら落ちた
• 同僚／友人からのクラッシュ報告
• お客様からのクラッシュ報告
クラッシュログが見たいですよね
デバイス内に残っています
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Demo
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デバイス内のクラッシュログ
• 「設定」アプリ
プライバシー → 解析 → 解析データ
→ <アプリ名-日付-時刻.ips>
※ iOS 11の場合。OSのバージョンによって微妙に場所が異なる
※ メモリ不足でクラッシュしたときは
JetsamEvent-日付-時刻.ipsが出力されるが、これはまた別
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iTunesで同期
• iTunesで「母艦」と同期すれば
/Users/<Ϣʔβʔ໊>/Library/Logs/
CrashReporter/MobileDevice/<໊>/
<ΞϓϦ໊࣌ࠁ.crash>
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読めない
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 DramaticCrash 0x0000000100c8d708 0x100c88000 + 22280
1 DramaticCrash 0x0000000100c8d668 0x100c88000 + 22120
2 DramaticCrash 0x0000000100c8c2bc 0x100c88000 + 17084
3 UIKit 0x000000018ddb30cc 0x18dc9f000 + 1130700
4 UIKit 0x000000018ddb2d84 0x18dc9f000 + 1129860
5 UIKit 0x000000018ddb1aa0 0x18dc9f000 + 1125024
6 UIKit 0x000000018ddad5ec 0x18dc9f000 + 1107436
7 UIKit 0x000000018dcea6f4 0x18dc9f000 + 308980
8 QuartzCore 0x000000018825fe54 0x18813d000 + 1191508
9 QuartzCore 0x0000000188263fe4 0x18813d000 + 1208292
10 QuartzCore 0x00000001881d06c8 0x18813d000 + 603848
11 QuartzCore 0x00000001881f81b0 0x18813d000 + 766384
12 QuartzCore 0x0000000188148d38 0x18813d000 + 48440
13 IOKit 0x000000018433f48c 0x18433a000 + 21644
14 CoreFoundation 0x0000000184064b20 0x183f91000 + 867104
15 CoreFoundation 0x000000018407fae8 0x183f91000 + 977640
16 CoreFoundation 0x000000018407f230 0x183f91000 + 975408
17 CoreFoundation 0x000000018407cc80 0x183f91000 + 965760
18 CoreFoundation 0x0000000183f9cda8 0x183f91000 + 48552
19 GraphicsServices 0x0000000185f82020 0x185f77000 + 45088
20 UIKit 0x000000018dfbc758 0x18dc9f000 + 3266392
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✨ symbolicatecrash ✨
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symbolicatecrash
• Xcodeに含まれているツール
• クラッシュログを「シンボリケート」して、人間
が読めるかたちにしてくれる
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使い方
ターミナルを開いて
$ export DEVELOPER_DIR=/Applications/Xcode.app/Contents/
Developer
$ /Applications/Xcode.app/Contents/SharedFrameworks/
DVTFoundation.framework/Versions/A/Resources/symbolicatecrash
Ϋϥογϡϩά.ips >ग़ྗઌϑΝΠϧ
DEVELOPER_DIR環境変数が必要
symbolicatecrashを実行
結果は標準出力に出るので、
リダイレクト（必要に応じて）
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Demo
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気持ちが通じた
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 DramaticCrash 0x0000000100c8d708 specialized ViewController.tableView(_:cellForRowAt:) +
1 DramaticCrash 0x0000000100c8d668 specialized ViewController.tableView(_:cellForRowAt:) +
2 DramaticCrash 0x0000000100c8c2bc @objc ViewController.tableView(_:cellForRowAt:) + 17084
3 UIKit 0x000000018ddb30cc -[UITableView _createPreparedCellForGlobalRow:withIndex
4 UIKit 0x000000018ddb2d84 -[UITableView _createPreparedCellForGlobalRow:willDispl
5 UIKit 0x000000018ddb1aa0 -[UITableView _updateVisibleCellsNow:isRecursive:] + 22
6 UIKit 0x000000018ddad5ec -[UITableView layoutSubviews] + 140
7 UIKit 0x000000018dcea6f4 -[UIView+ 308980 (CALayerDelegate) layoutSublayersOfLay
8 QuartzCore 0x000000018825fe54 -[CALayer layoutSublayers] + 184
9 QuartzCore 0x0000000188263fe4 CA::Layer::layout_if_needed+ 1208292 (CA::Transaction*)
10 QuartzCore 0x00000001881d06c8 CA::Context::commit_transaction+ 603848 (CA::Transactio
11 QuartzCore 0x00000001881f81b0 CA::Transaction::commit+ 766384 () + 580
12 QuartzCore 0x0000000188148d38 CA::Display::DisplayLink::dispatch_items+ 48440 (unsign
13 IOKit 0x000000018433f48c IODispatchCalloutFromCFMessage + 492
14 CoreFoundation 0x0000000184064b20 __CFMachPortPerform + 188
15 CoreFoundation 0x000000018407fae8 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTIO
16 CoreFoundation 0x000000018407f230 __CFRunLoopDoSource1 + 440
17 CoreFoundation 0x000000018407cc80 __CFRunLoopRun + 2456
18 CoreFoundation 0x0000000183f9cda8 CFRunLoopRunSpecific + 552
19 GraphicsServices 0x0000000185f82020 GSEventRunModal + 100
20 UIKit 0x000000018dfbc758 UIApplicationMain + 236
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第１部 まとめ
• クラッシュログはデバイスに残っている
• 設定アプリ、iTunes同期で取り出せる
• symbolicatecrashで人間が読めるかたちにできる
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第２部
すれ違い編
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シンボリケート失敗
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 DramaticCrash 0x0000000100c8d708 0x100c88000 + 22280
1 DramaticCrash 0x0000000100c8d668 0x100c88000 + 22120
2 DramaticCrash 0x0000000100c8c2bc 0x100c88000 + 17084
3 UIKit 0x000000018ddb30cc -[UITableView _createPreparedCellForGlobalRow:withIndex
4 UIKit 0x000000018ddb2d84 -[UITableView _createPreparedCellForGlobalRow:willDispl
5 UIKit 0x000000018ddb1aa0 -[UITableView _updateVisibleCellsNow:isRecursive:] + 22
6 UIKit 0x000000018ddad5ec -[UITableView layoutSubviews] + 140
7 UIKit 0x000000018dcea6f4 -[UIView+ 308980 (CALayerDelegate) layoutSublayersOfLay
8 QuartzCore 0x000000018825fe54 -[CALayer layoutSublayers] + 184
9 QuartzCore 0x0000000188263fe4 CA::Layer::layout_if_needed+ 1208292 (CA::Transaction*)
10 QuartzCore 0x00000001881d06c8 CA::Context::commit_transaction+ 603848 (CA::Transactio
11 QuartzCore 0x00000001881f81b0 CA::Transaction::commit+ 766384 () + 580
12 QuartzCore 0x0000000188148d38 CA::Display::DisplayLink::dispatch_items+ 48440 (unsign
13 IOKit 0x000000018433f48c IODispatchCalloutFromCFMessage + 492
14 CoreFoundation 0x0000000184064b20 __CFMachPortPerform + 188
15 CoreFoundation 0x000000018407fae8 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTIO
16 CoreFoundation 0x000000018407f230 __CFRunLoopDoSource1 + 440
17 CoreFoundation 0x000000018407cc80 __CFRunLoopRun + 2456
アプリ部分がシンボリケートできていない
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シンボリケート失敗
OSのフレームワーク部分がシンボリケートできていない
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 DramaticCrash 0x0000000100c8d708 specialized ViewController.tableView(_:cellForRowAt:) +
1 DramaticCrash 0x0000000100c8d668 specialized ViewController.tableView(_:cellForRowAt:) +
2 DramaticCrash 0x0000000100c8c2bc @objc ViewController.tableView(_:cellForRowAt:) + 17084
3 UIKit 0x000000018ddb30cc 0x18dc9f000 + 1130700
4 UIKit 0x000000018ddb2d84 0x18dc9f000 + 1129860
5 UIKit 0x000000018ddb1aa0 0x18dc9f000 + 1125024
6 UIKit 0x000000018ddad5ec 0x18dc9f000 + 1107436
7 UIKit 0x000000018dcea6f4 0x18dc9f000 + 308980
8 QuartzCore 0x000000018825fe54 0x18813d000 + 1191508
9 QuartzCore 0x0000000188263fe4 0x18813d000 + 1208292
10 QuartzCore 0x00000001881d06c8 0x18813d000 + 603848
11 QuartzCore 0x00000001881f81b0 0x18813d000 + 766384
12 QuartzCore 0x0000000188148d38 0x18813d000 + 48440
13 IOKit 0x000000018433f48c 0x18433a000 + 21644
14 CoreFoundation 0x0000000184064b20 0x183f91000 + 867104
15 CoreFoundation 0x000000018407fae8 0x183f91000 + 977640
16 CoreFoundation 0x000000018407f230 0x183f91000 + 975408
17 CoreFoundation 0x000000018407cc80 0x183f91000 + 965760
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なぜこんなことが
起きるのか？
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symbolicatecrashを見てみよう
• symbolicatecrashは
Perlのスクリプト
• 何をやっているのかわかる
• しかし、約1500行もある
• Perlが苦手（個人的事情）
#!/usr/bin/perl -w
#
# This script parses a crashdump file and attempts to resolve addresses into function names.
#
# It finds symbol-rich binaries by:
# a) searching in Spotlight to find .dSYM files by UUID, then finding the executable from there.
# That finds the symbols for binaries that a developer has built with "DWARF with dSYM File".
# b) searching in various SDK directories.
#
# Copyright (c) 2008-2015 Apple Inc. All Rights Reserved.
#
#
use strict;
use warnings;
use Getopt::Long;
use Cwd qw(realpath);
use List::MoreUtils qw(uniq);
use File::Basename qw(basename);
use File::Glob ':glob';
use Env qw(DEVELOPER_DIR);
use Config;
no warnings "portable";
require bigint;
if($Config{ivsize} < 8) {
bigint->import(qw(hex));
}
#############################
# Forward definitons
sub usage();
#############################
# read and parse command line
my $opt_help = 0;
my $opt_verbose = 0;
my $opt_output = "-";
my @opt_dsyms = ();
my $opt_spotlight = 1;
Getopt::Long::Configure ("bundling");
GetOptions ("help|h" => \$opt_help,
"verbose|v" => \$opt_verbose,
"output|o=s" => \$opt_output,
"dsym|d=s" => \@opt_dsyms,
"spotlight!" => \$opt_spotlight)
or die("Error in command line arguments\n");
usage() if $opt_help;
#############################
# have this thing to de-HTMLize Leopard-era plists
my %entity2char = (
# Some normal chars that have special meaning in SGML context
amp => '&', # ampersand
'gt' => '>', # greater than
'lt' => '<', # less than
quot => '"', # double quote
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#############################
# run the script
symbolicate_log(@ARGV);
exit 0;
#############################
sub symbolicate_log {
my ($file,@extra_search_paths) = @_;
print STDERR "Symbolicating $file ...\n" if ( $opt_verbose && defi
print STDERR "Symbolicating stdin ...\n" if ( $opt_verbose && ! de
my $log_ref = slurp_file($file);
メインの処理は
symbolicate_log
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symbolicate_logの
最後の方で呼んでいるのが
symbolize_frames
next;
}
# run atos
symbolize_frames($images,$bt,$is_spindump_report);
if(keys %$bt) {
# run our fancy regex
$process_section = replace_symbolized_frames($process_secti
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next;
}
# run atos
symbolize_frames($images,$bt,$is_spindump_report);
if(keys %$bt) {
# run our fancy regex
$process_section = replace_symbolized_frames($process_secti
symbolicate_logの
最後の方で呼んでいるのが
symbolize_frames
# run atos
sub symbolize_frames {
my ($images,$bt,$is_spindump_report) = @_;
# create mapping of framework => address => bt frame (adjust for sli
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# run atos
sub symbolize_frames {
my ($images,$bt,$is_spindump_report) = @_;
# create mapping of framework => address => bt frame (adjust for sli
# run atos with the addresses and binary files we just gathered
my $arch = $arch_map{$symbol};
my $base = $base_map{$symbol};
my $lib = $image_map{$symbol};
my $cmd = "'$atos' -arch $arch -l $base -o '$escapedSymbol' @{[ keys %
print STDERR "Running $cmd\n" if $opt_verbose;
open my($ph),$cmd or die $!;
my @symbolled_frames = map { chomp; $_ } <$ph>;
close $ph or die $!;
別のプログラムを
呼び出している
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atos
atos -arch architecture -l load-address -o binary-image address ...
arm64 0x100c88000 /………/DramaticCrash
0x0000000100c8d708 0x0000000100c8d668 0x0000000100c8c2bc
アドレスをシンボルに変換するコマンド
specialized ViewController.tableView(_:cellForRowAt:) (in DramaticCrash) (ViewController.swift:0)
specialized ViewController.tableView(_:cellForRowAt:) (in DramaticCrash) (ViewController.swift:0)
@objc ViewController.tableView(_:cellForRowAt:) (in DramaticCrash) (ViewController.swift:61)
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atos
• symbolicatecrashは内部でatosを使ってシンボリケート
を実行している
• atosの実行にはアドレス以外に3つのパラメータが必要
- architecture
- load-address
- binary-image
• シンボリケートできないのはこれらのパラメータが揃わ
ないとき
友情
努力
勝利
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パラメータはどこから？
# run atos with the addresses and binary files we just gathered
my $arch = $arch_map{$symbol};
my $base = $base_map{$symbol};
my $lib = $image_map{$symbol};
my $cmd = "'$atos' -arch $arch -l $base -o '$escapedSymbol' @{[ keys %
print STDERR "Running $cmd\n" if $opt_verbose;
open my($ph),$cmd or die $!;
my @symbolled_frames = map { chomp; $_ } <$ph>;
close $ph or die $!;
# run atos
sub symbolize_frames {
my ($images,$bt,$is_spindump_report) = @_;
# create mapping of framework => address => bt frame (adjust for sli
{
"Foundation": {
"path": …,
"uuid": …,
"symbol": …,
"arch": …,
"plus": …,
"nextID": …,
"base": …,
"bundlename": …,
"extent": …
},
"libSystem_kernel.dylib": {
"path": …,
"uuid": …,
"symbol": …,
…
},
…
}
→ architecture
→ load-address
→ binary-image
モジュール
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next;
}
# run atos
symbolize_frames($images,$bt,$is_spindump_report);
if(keys %$bt) {
# run our fancy regex
$process_section = replace_symbolized_frames($process_section,$bt
# read the binary images
my ($images,$first_bundle) = parse_images($process_section, $report_
if ( $opt_verbose ) {
imagesはどこから？
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next;
}
# run atos
symbolize_frames($images,$bt,$is_spindump_report);
if(keys %$bt) {
# run our fancy regex
$process_section = replace_symbolized_frames($process_section,$bt
# read the binary images
my ($images,$first_bundle) = parse_images($process_section, $report_
if ( $opt_verbose ) {
sub parse_images {
my ($log_ref, $report_version, $is_spindump_report) = @_;
my $section = parse_section($log_ref,'Binary Images Description',mu
if (!defined($section)) {
$section = parse_section($log_ref,'\\s*Binary\\s*Images',multil
}
if (!defined($section)) {
'bundlename' => \$4, 'uuid' => \$5, 'path' => \$6);
}
elsif($report_version == 104 || $report_version == 105) { # Kirkwood
# 0x182155000 - 0x1824c6fff CoreFoundation arm64 /Sys
$pat = '
^\s* (\w+) \s* \- \s* (\w+) \s* (?# the range base and extent [1,2] )
(\+)? (?# the application may have a + in front of the name
(.+) (?# bundle name [4] )
\s+ ('.$architectures.') \s+ (?# the image arch [5] )
\([[:xdigit:]]{32})?\>? (?# possible UUID [6] )
\s* (\/.*)\s*$ (?# first fwdslash to end we hope is path [7] )
';
%captures = ( 'base' => \$1, 'extent' => \$2, 'plus' => \$3,
'bundlename' => \$4, 'arch' => \$5, 'uuid' => \$6,
'path' => \$7);
}
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parse_image
Binary Images:
0x100c88000 - 0x100c8ffff DramaticCrash arm64 /var/containers/Bund
0x100ca0000 - 0x100ca7fff libswiftCoreFoundation.dylib arm64 /var/
0x100cb4000 - 0x100cc7fff libswiftCoreGraphics.dylib arm64 <8c36e2e2550431e9bfba2d7b3c1b929b> /var/co
0x100ce8000 - 0x100ceffff libswiftCoreImage.dylib arm64 <0a1f05c0b97e3a2d964194e42172b5f6> /var/conta
0x100cfc000 - 0x100d07fff libswiftDarwin.dylib arm64 /var/containe
0x100d1c000 - 0x100d37fff libswiftDispatch.dylib arm64 /var/contai
0x100d6c000 - 0x100d73fff libswiftMetal.dylib arm64 <53726a84151636daa5627acbd8725367> /var/container
0x100d80000 - 0x100d87fff libswiftObjectiveC.dylib arm64 <062bd1c402933010b791eb1a4d4dc93b> /var/cont
0x100d98000 - 0x100d9ffff libswiftQuartzCore.dylib arm64 <5df1cca7da493ae6bc61aaf18034779e> /var/cont
0x100dac000 - 0x100dbbfff libswiftUIKit.dylib arm64 <412b48c607fb3096a8f42fa3c159b67a> /var/container
0x100dd4000 - 0x100ddbfff libswiftos.dylib arm64 /var/containers/B
0x100f24000 - 0x100f5ffff dyld arm64 /usr/lib/dyld
0x100fb8000 - 0x1012c3fff libswiftCore.dylib arm64 <4fe543830b383378b946c669dd45fdd0> /var/containers
0x10159c000 - 0x1016f7fff libswiftFoundation.dylib arm64 /var/cont
0x18320a000 - 0x18320bfff libSystem.B.dylib arm64 <0f3f5f4ea60d3d4d84af311421f67108> /usr/lib/libSyst
0x18320c000 - 0x183264fff libc++.1.dylib arm64 /usr/lib/libc++.1.d
クラッシュログの最後にあるこの部分の
情報を取ってきている
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parse_image
Binary Images:
0x100c88000 - 0x100c8ffff DramaticCrash arm64 /var/containers/Bund
0x100ca0000 - 0x100ca7fff libswiftCoreFoundation.dylib arm64 /var/
0x100cb4000 - 0x100cc7fff libswiftCoreGraphics.dylib arm64 <8c36e2e2550431e9bfba2d7b3c1b929b> /var/co
0x100ce8000 - 0x100ceffff libswiftCoreImage.dylib arm64 <0a1f05c0b97e3a2d964194e42172b5f6> /var/conta
0x100cfc000 - 0x100d07fff libswiftDarwin.dylib arm64 /var/containe
0x100d1c000 - 0x100d37fff libswiftDispatch.dylib arm64 /var/contai
0x100d6c000 - 0x100d73fff libswiftMetal.dylib arm64 <53726a84151636daa5627acbd8725367> /var/container
クラッシュログの最後にあるこの部分の
情報を取ってきている
勝利
symbol
→ binary-image
？
uuid
base
→ load-address
友情
arch
→ architecture
努力
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next;
}
# run atos
symbolize_frames($images,$bt,$is_spindump_report);
if(keys %$bt) {
# run our fancy regex
$process_section = replace_symbolized_frames($process_section,$bt
# read the binary images
my ($images,$first_bundle) = parse_images($process_section, $report_v
if ( $opt_verbose ) {
symbolはどこから？
}
@extra_search_paths = (@extra_search_paths, getSymbolDirPaths($model, $
fetch_symbolled_binaries($images,$build,$first_bundle,@extra_search_pat
# If we didn't get *any* symbolled binaries, just print out the origina
my $imageCount = keys(%$images);
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}
@extra_search_paths = (@extra_search_paths, getSymbolDirPaths($model, $
fetch_symbolled_binaries($images,$build,$first_bundle,@extra_search_pat
# If we didn't get *any* symbolled binaries, just print out the origina
my $imageCount = keys(%$images);
symbolへの道
$symbol = $$lib{symbol};
if ($symbol) {
print STDERR "-- [$$lib{uuid}] found in cache\n" if $op
} else {
($symbol, $arch) = getSymbolPathAndArchFor($$lib{path},
@{$uuid_cache{$$lib{uuid}}} = ($symbol, $arch);
if ( $symbol ) {
$$lib{symbol} = $symbol;
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}
@extra_search_paths = (@extra_search_paths, getSymbolDirPaths($model, $
fetch_symbolled_binaries($images,$build,$first_bundle,@extra_search_pat
# If we didn't get *any* symbolled binaries, just print out the origina
my $imageCount = keys(%$images);
$symbol = $$lib{symbol};
if ($symbol) {
print STDERR "-- [$$lib{uuid}] found in cache\n" if $op
} else {
($symbol, $arch) = getSymbolPathAndArchFor($$lib{path},
@{$uuid_cache{$$lib{uuid}}} = ($symbol, $arch);
if ( $symbol ) {
$$lib{symbol} = $symbol;
sub getSymbolPathAndArchFor {
my ($path,$build,$uuid,@extra_search_paths) = @_;
# derive a few more parameters...
my $bin = ($path =~ /^.*?([^\/]+)$/)[0]; # basename
# Look in any of the manually-passed dSYMs
if( @opt_dsyms ) {
print STDERR "-- [$uuid] CHECK (manual)\n" if $opt_verbose;
my ($out_path, $arch) = getSymbolPathAndArchFor_manualDSYM($uuid
if(defined($out_path) && length($out_path) && defined($arch) &&
４つの処理を順に呼び出して、uuidに
一致するシンボル情報ファイルを探している
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# Look in any of the manually-passed dSYMs
if( @opt_dsyms ) {
print STDERR "-- [$uuid] CHECK (manual)\n" if $opt_verbose;
my ($out_path, $arch) = getSymbolPathAndArchFor_manualDSYM($uuid
if(defined($out_path) && length($out_path) && defined($arch) &&
print STDERR "-- [$uuid] MATCH (manual): $out_path ($arch)\n
return ($out_path, $arch);
}
print STDERR "-- [$uuid] NO MATCH (manual)\n\n" if $opt_verbose
}
① getSymbolPathAndArchFor_manualDSYM
Slide 37
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# Look for a UUID match in the cache directory
my $uuidsPath = "/Volumes/Build/UUIDToSymbolMap";
if ( -d $uuidsPath ) {
print STDERR "-- [$uuid] CHECK (uuid cache)\n" if $opt_verbose;
my $out_path = getSymbolPathFor_uuid($uuid, $uuidsPath);
if(defined($out_path) && length($out_path)) {
my $arch = archForUUID($out_path, $uuid);
if (defined($arch) && length($arch)) {
print STDERR "-- [$uuid] MATCH (uuid cache): $out_path (
return ($out_path, $arch);
② getSymbolPathFor_uuid
Slide 38
Slide 38 text
# Look in the search paths (e.g. the device support directories)
print STDERR "-- [$uuid] CHECK (device support)\n" if $opt_verbose;
for my $func ( \&getSymbolPathAndArchFor_searchpaths, ) {
my ($out_path, $arch) = &$func($bin,$path,$build,$uuid,@extra_se
if ( defined($out_path) && length($out_path) && defined($arch) &
print STDERR "-- [$uuid] MATCH (device support): $out_path (
return ($out_path, $arch);
}
}
print STDERR "-- [$uuid] NO MATCH (device support)\n\n" if $opt_ver
③ getSymbolPathAndArchFor_searchpaths
Slide 39
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# Ask spotlight
if( $opt_spotlight ) {
print STDERR "-- [$uuid] CHECK (spotlight)\n" if $opt_verbose;
my ($out_path, $arch) = getSymbolPathAndArchFor_dsymUuid($uuid);
if(defined($out_path) && length($out_path) && defined($arch) &&
print STDERR "-- [$uuid] MATCH (spotlight): $out_path ($arch
return ($out_path, $arch);
}
print STDERR "-- [$uuid] NO MATCH (spotlight)\n\n" if $opt_verb
}
④ getSymbolPathAndArchFor_dsymUuid
Slide 40
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① getSymbolPathAndArchFor_manualDSYM
• --dsymオプションで指定したdSYMファイルから
uuidが一致するものを探す
DramaticCrash.dSYM/Contents/Resources/DWARF/DramaticCrash
symbolicatecrash --dsym path/to/DramaticCrash.dSYM
Slide 41
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dSYMファイル
• デバッグシンボルを含んでいるファイル
（実体はフォルダ）
• ビルドするたびに作られる
※Build Settingsの「Debug Information Format」
が「DWARF with dSYM File」になっていること
• アーカイブしたら.xcarchiveファイルの中にも入っ
ている
Slide 42
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② getSymbolPathFor_uuid
• /Volumes/Build/UUIDToSymbolMapの中から
uuidが一致するものを探す
• 詳細不明
Slide 43
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③ getSymbolPathAndArchFor_searchpaths
• search pathの中からuuidが一致するものを探す
• 特に、iOS DeviceSupportフォルダの中
~/Library/Developer/Xcode/
iOS DeviceSupport/OSͷόʔδϣϯ/Symbols
Slide 44
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iOS DeviceSupport
• OSに含まれるモジュールのデバッグシンボルが
入っている
• デバイスを接続して、Xcodeを起動したときに
コピーされる（まだコピーされていなければ）
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④ getSymbolPathAndArchFor_dsymUuid
• Spotlightでuuidが一致するdSYMファイルを探す
mdfind "com_apple_xcode_dsym_uuids == uuid"
※ fcbd7e2d04523c2a835698b0bf29e71f ͡Όͳ͍
FCBD7E2D-0452-3C2A-8356-98B0BF29E71F
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getSymbolPathAndArchFor
--dsym
詳細不明
iOS DeviceSupport
Spotlight
①
②
③
④
Slide 47
Slide 47 text
getSymbolPathAndArchFor
--dsym
詳細不明
iOS DeviceSupport
Spotlight
①
②
③
④
Thread 0 name: Dispatch queue: com.apple.main-
Thread 0 Crashed:
0 DramaticCrash 0x00000001
1 DramaticCrash 0x00000001
2 DramaticCrash 0x00000001
3 UIKit 0x00000001
4 UIKit 0x00000001
5 UIKit 0x00000001
6 UIKit 0x00000001
7 UIKit 0x00000001
8 QuartzCore 0x00000001
9 QuartzCore 0x00000001
10 QuartzCore 0x00000001
11 QuartzCore 0x00000001
12 QuartzCore 0x00000001
13 IOKit 0x00000001
14 CoreFoundation 0x00000001
15 CoreFoundation 0x00000001
16 CoreFoundation 0x00000001
17 CoreFoundation 0x00000001
18 CoreFoundation 0x00000001
19 GraphicsServices 0x00000001
20 UIKit 0x00000001
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getSymbolPathAndArchFor
--dsym
詳細不明
iOS DeviceSupport
Spotlight
①
②
③
④
Thread 0 name: Dispatch queue: com.apple.main-
Thread 0 Crashed:
0 DramaticCrash 0x00000001
1 DramaticCrash 0x00000001
2 DramaticCrash 0x00000001
3 UIKit 0x00000001
4 UIKit 0x00000001
5 UIKit 0x00000001
6 UIKit 0x00000001
7 UIKit 0x00000001
8 QuartzCore 0x00000001
9 QuartzCore 0x00000001
10 QuartzCore 0x00000001
11 QuartzCore 0x00000001
12 QuartzCore 0x00000001
13 IOKit 0x00000001
14 CoreFoundation 0x00000001
15 CoreFoundation 0x00000001
16 CoreFoundation 0x00000001
17 CoreFoundation 0x00000001
18 CoreFoundation 0x00000001
19 GraphicsServices 0x00000001
20 UIKit 0x00000001
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シンボリケート失敗の原因
• SpotlightでdSYMファイルが見つからない
- マシンに対応するdSYMファイルが存在しない
- Spotlightのインデックスが作成されていない？
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 DramaticCrash 0x0000000100c8d708 0x100c88000 + 22280
1 DramaticCrash 0x0000000100c8d668 0x100c88000 + 22120
2 DramaticCrash 0x0000000100c8c2bc 0x100c88000 + 17084
3 UIKit 0x000000018ddb30cc -[UITableView _createPreparedCellForGlobalRow:withIndex
4 UIKit 0x000000018ddb2d84 -[UITableView _createPreparedCellForGlobalRow:willDispl
5 UIKit 0x000000018ddb1aa0 -[UITableView _updateVisibleCellsNow:isRecursive:] + 22
6 UIKit 0x000000018ddad5ec -[UITableView layoutSubviews] + 140
アプリ部分がシンボリケートできていない
--dsymオプションで指定してみたら？
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シンボリケート失敗の原因
• OSのシンボルがマシンにコピーされていない
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 DramaticCrash 0x0000000100c8d708 specialized ViewController.tableView(_:cellForRowAt:) +
1 DramaticCrash 0x0000000100c8d668 specialized ViewController.tableView(_:cellForRowAt:) +
2 DramaticCrash 0x0000000100c8c2bc @objc ViewController.tableView(_:cellForRowAt:) + 17084
3 UIKit 0x000000018ddb30cc 0x18dc9f000 + 1130700
4 UIKit 0x000000018ddb2d84 0x18dc9f000 + 1129860
5 UIKit 0x000000018ddb1aa0 0x18dc9f000 + 1125024
6 UIKit 0x000000018ddad5ec 0x18dc9f000 + 1107436
OSのフレームワーク部分がシンボリケートできていない
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第２部 まとめ
• symbolicatecrashは内部でatosを呼び出す
• atosの実行にデバッグシンボルのファイルが必要
- dSYMファイル
- iOS DeviceSupport
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第３部
距離を置きましょう編
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Thread.callStackSymbols
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Thread.callStackSymbols
open class var callStackSymbols: [String] { get }
カレントスレッドのコールスタックを入れた配列
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うまく読めないときがある
for line in Thread.callStackSymbols {
print(line)
}
0 DramaticCrash 0x0000000100eae544 _T013DramaticCrash22reportCallStackSymbolsyyF + 1320
1 DramaticCrash 0x0000000100eb267c _T013DramaticCrash14ViewControllerC8doReportyyF + 20
2 DramaticCrash 0x0000000100eb2584 _T013DramaticCrash14ViewControllerC8onReportyypF + 52
3 DramaticCrash 0x0000000100eb2650 _T013DramaticCrash14ViewControllerC8onReportyypFTo + 84
4 UIKit 0x000000018d68d64c + 96
5 UIKit 0x000000018df67478 + 156
6 UIKit 0x000000018df673a8 + 172
7 UIKit 0x000000018d68d64c + 96
8 UIKit 0x000000018d7ae870 + 80
9 UIKit 0x000000018d693700 + 440
10 UIKit 0x000000018d7c91a8 + 572
11 UIKit 0x000000018d7109e0 + 2428
12 UIKit 0x000000018d705890 + 3160
13 UIKit 0x000000018d7041d0 + 340
？
？
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symbolicatecrashで
シンボリケートできれば？
Slide 57
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Binary Images
• この部分が必要であることを、すでに
我々は知っている！
Binary Images:
0x100c88000 - 0x100c8ffff DramaticCrash arm64 /var/containers/Bund
0x100ca0000 - 0x100ca7fff libswiftCoreFoundation.dylib arm64 /var/
0x100cb4000 - 0x100cc7fff libswiftCoreGraphics.dylib arm64 <8c36e2e2550431e9bfba2d7b3c1b929b> /var/co
0x100ce8000 - 0x100ceffff libswiftCoreImage.dylib arm64 <0a1f05c0b97e3a2d964194e42172b5f6> /var/conta
0x100cfc000 - 0x100d07fff libswiftDarwin.dylib arm64 /var/containe
0x100d1c000 - 0x100d37fff libswiftDispatch.dylib arm64 /var/contai
0x100d6c000 - 0x100d73fff libswiftMetal.dylib arm64 <53726a84151636daa5627acbd8725367> /var/container
0x100d80000 - 0x100d87fff libswiftObjectiveC.dylib arm64 <062bd1c402933010b791eb1a4d4dc93b> /var/cont
0x100d98000 - 0x100d9ffff libswiftQuartzCore.dylib arm64 <5df1cca7da493ae6bc61aaf18034779e> /var/cont
0x100dac000 - 0x100dbbfff libswiftUIKit.dylib arm64 <412b48c607fb3096a8f42fa3c159b67a> /var/container
0x100dd4000 - 0x100ddbfff libswiftos.dylib arm64 /var/containers/B
0x100f24000 - 0x100f5ffff dyld arm64 /usr/lib/dyld
0x100fb8000 - 0x1012c3fff libswiftCore.dylib arm64 <4fe543830b383378b946c669dd45fdd0> /var/containers
0x10159c000 - 0x1016f7fff libswiftFoundation.dylib arm64 /var/cont
0x18320a000 - 0x18320bfff libSystem.B.dylib arm64 <0f3f5f4ea60d3d4d84af311421f67108> /usr/lib/libSyst
0x18320c000 - 0x183264fff libc++.1.dylib arm64 /usr/lib/libc++.1.d
ところが
Slide 58
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StackOverflowで見つけた
https://stackoverflow.com/questions/30212188/how-can-i-get-load-address-of-an-ios-app
Slide 59
Slide 59 text
Swiftのリポジトリで見つけた
https://github.com/apple/swift/blob/cc7f207ceca0b42d25a76bd3ecfa0ad6c96baace/stdlib/private/
SwiftReflectionTest/SwiftReflectionTest.swift#L141-L154
/// Get the TEXT segment location and size for a loaded image.
///
/// - Parameter i: The index of the loaded image as reported by Dyld.
/// - Returns: The image name, address, and size.
internal func getAddressInfoForImage(atIndex i: UInt32) ->
(name: String, address: UnsafeMutablePointer?, size: UInt) {
debugLog("BEGIN \(#function)"); defer { debugLog("END \(#function)") }
let header = unsafeBitCast(_dyld_get_image_header(i),
to: UnsafePointer.self)
let name = String(validatingUTF8: _dyld_get_image_name(i)!)!
var size: UInt = 0
let address = getsegmentdata(header, "__TEXT", &size)
return (name, address, size)
}
__TEXTセグメント
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この時点で得られたもの
• address
• size
• name
Binary Images:
0x100c88000 - 0x100c8ffff DramaticCrash arm64 /var/containers/Bund
0x100ca0000 - 0x100ca7fff libswiftCoreFoundation.dylib arm64 /var/
0x100cb4000 - 0x100cc7fff libswiftCoreGraphics.dylib arm64 <8c36e2e2550431e9bfba2d7b3c1b929b> /var/co
0x100ce8000 - 0x100ceffff libswiftCoreImage.dylib arm64 <0a1f05c0b97e3a2d964194e42172b5f6> /var/conta
0x100cfc000 - 0x100d07fff libswiftDarwin.dylib arm64 /var/containe
0x100d1c000 - 0x100d37fff libswiftDispatch.dylib arm64 /var/contai
0x100d6c000 - 0x100d73fff libswiftMetal.dylib arm64 <53726a84151636daa5627acbd8725367> /var/container
0x100d80000 - 0x100d87fff libswiftObjectiveC.dylib arm64 <062bd1c402933010b791eb1a4d4dc93b> /var/cont
0x100d98000 - 0x100d9ffff libswiftQuartzCore.dylib arm64 <5df1cca7da493ae6bc61aaf18034779e> /var/cont
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まだ足りないもの
• architecture
• UUID
Binary Images:
0x100c88000 - 0x100c8ffff DramaticCrash arm64 /var/containers/Bund
0x100ca0000 - 0x100ca7fff libswiftCoreFoundation.dylib arm64 /var/
0x100cb4000 - 0x100cc7fff libswiftCoreGraphics.dylib arm64 <8c36e2e2550431e9bfba2d7b3c1b929b> /var/co
0x100ce8000 - 0x100ceffff libswiftCoreImage.dylib arm64 <0a1f05c0b97e3a2d964194e42172b5f6> /var/conta
0x100cfc000 - 0x100d07fff libswiftDarwin.dylib arm64 /var/containe
0x100d1c000 - 0x100d37fff libswiftDispatch.dylib arm64 /var/contai
0x100d6c000 - 0x100d73fff libswiftMetal.dylib arm64 <53726a84151636daa5627acbd8725367> /var/container
0x100d80000 - 0x100d87fff libswiftObjectiveC.dylib arm64 <062bd1c402933010b791eb1a4d4dc93b> /var/cont
0x100d98000 - 0x100d9ffff libswiftQuartzCore.dylib arm64 <5df1cca7da493ae6bc61aaf18034779e> /var/cont
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architecture
_dyld_get_image_headerが指すもの
（64ビットの場合） ※32ビットも同様
public struct mach_header_64 {
public var magic: UInt32 /* mach magic number identifier */
public var cputype: cpu_type_t /* cpu specifier */
public var cpusubtype: cpu_subtype_t /* machine specifier */
public var filetype: UInt32 /* type of file */
public var ncmds: UInt32 /* number of load commands */
public var sizeofcmds: UInt32 /* the size of all the load commands */
public var flags: UInt32 /* flags */
public var reserved: UInt32 /* reserved */
public init()
public init(magic: UInt32, cputype: cpu_type_t, cpusubtype: cpu_subtype_t,
filetype: UInt32, ncmds: UInt32, sizeofcmds: UInt32, flags: UInt32, reserved: UInt32)
}
Slide 63
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architecture
private func makeArchString(header: UnsafePointer) -> String {
switch (header.pointee.cputype, header.pointee.cpusubtype) {
case (CPU_TYPE_I386, _):
return "i386"
case (CPU_TYPE_X86_64, _):
return "x86_64"
case (CPU_TYPE_ARM64, _):
return "arm64"
case (CPU_TYPE_ARM, CPU_SUBTYPE_ARM_V7):
return "armv7"
case (CPU_TYPE_ARM, CPU_SUBTYPE_ARM_V7S):
return "armv7s"
default:
return "unknown"
}
}
#if arch(x86_64) || arch(arm64)
private typealias MachHeader = mach_header_64
#else
private typealias MachHeader = mach_header
#endif
Slide 64
Slide 64 text
あとは
UUID
Slide 65
Slide 65 text
load_command N
MachHeader
load_command 1
load_command 2
:
public struct mach_header_64 {
public var magic: UInt32 /* mach magic number identifier */
public var cputype: cpu_type_t /* cpu specifier */
public var cpusubtype: cpu_subtype_t /* machine specifier */
public var filetype: UInt32 /* type of file */
public var ncmds: UInt32 /* number of load commands */
public var sizeofcmds: UInt32 /* the size of all the load commands */
public var flags: UInt32 /* flags */
public var reserved: UInt32 /* reserved */
public init()
public init(magic: UInt32, cputype: cpu_type_t, cpusubtype: cpu_subtype_t, filetype: UInt32,
ncmds: UInt32, sizeofcmds: UInt32, flags: UInt32, reserved: UInt32)
}
_dyld_get_image_header
N = header.ncmds
Slide 66
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load_command N
cmd
cmdsize
public struct load_command {
public var cmd: UInt32 /* type of load command */
public var cmdsize: UInt32 /* total size of command in bytes */
public init()
public init(cmd: UInt32, cmdsize: UInt32)
}
cmdに
応じたデータ
cmdsize
Slide 67
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load_command N
cmdsize
public struct load_command {
public var cmd: UInt32 /* type of load command */
public var cmdsize: UInt32 /* total size of command in bytes */
public init()
public init(cmd: UInt32, cmdsize: UInt32)
}
cmdsize
UUIDの場合は…
cmd = LC_UUID
データとしてUUIDが16バイト
LC_UUID
59 61 6b 88
aa 1b 37 07
a5 0b e4 a5
d0 98 c2 ae
Slide 68
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UUIDを探す
private func searchUUID(header: UnsafePointer) -> String {
var ptr = UnsafeRawPointer(header).advanced(by: MemoryLayout.size)
for _ in 0 ..< header.pointee.ncmds {
let loadCommand = ptr.bindMemory(to: load_command.self, capacity: 1)
if loadCommand.pointee.cmd == LC_UUID {
let uuidPointer = ptr
.advanced(by: MemoryLayout.size)
.bindMemory(to: UInt8.self, capacity: 16)
return String(format: "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
uuidPointer[0], uuidPointer[1], uuidPointer[2], uuidPointer[3],
uuidPointer[4], uuidPointer[5], uuidPointer[6], uuidPointer[7],
uuidPointer[8], uuidPointer[9], uuidPointer[10], uuidPointer[11],
uuidPointer[12], uuidPointer[13], uuidPointer[14], uuidPointer[15])
}
ptr = ptr.advanced(by: Int(loadCommand.pointee.cmdsize))
}
return ""
}
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UUIDを探す
private func searchUUID(header: UnsafePointer) -> String {
var ptr = UnsafeRawPointer(header).advanced(by: MemoryLayout.size)
for _ in 0 ..< header.pointee.ncmds {
let loadCommand = ptr.bindMemory(to: load_command.self, capacity: 1)
if loadCommand.pointee.cmd == LC_UUID {
let uuidPointer = ptr
.advanced(by: MemoryLayout.size)
.bindMemory(to: UInt8.self, capacity: 16)
return String(format: "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
uuidPointer[0], uuidPointer[1], uuidPointer[2], uuidPointer[3],
uuidPointer[4], uuidPointer[5], uuidPointer[6], uuidPointer[7],
uuidPointer[8], uuidPointer[9], uuidPointer[10], uuidPointer[11],
uuidPointer[12], uuidPointer[13], uuidPointer[14], uuidPointer[15])
}
ptr = ptr.advanced(by: Int(loadCommand.pointee.cmdsize))
}
return ""
}
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UUIDを探す
private func searchUUID(header: UnsafePointer) -> String {
var ptr = UnsafeRawPointer(header).advanced(by: MemoryLayout.size)
for _ in 0 ..< header.pointee.ncmds {
let loadCommand = ptr.bindMemory(to: load_command.self, capacity: 1)
if loadCommand.pointee.cmd == LC_UUID {
let uuidPointer = ptr
.advanced(by: MemoryLayout.size)
.bindMemory(to: UInt8.self, capacity: 16)
return String(format: "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
uuidPointer[0], uuidPointer[1], uuidPointer[2], uuidPointer[3],
uuidPointer[4], uuidPointer[5], uuidPointer[6], uuidPointer[7],
uuidPointer[8], uuidPointer[9], uuidPointer[10], uuidPointer[11],
uuidPointer[12], uuidPointer[13], uuidPointer[14], uuidPointer[15])
}
ptr = ptr.advanced(by: Int(loadCommand.pointee.cmdsize))
}
return ""
}
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すべての情報が揃った
Slide 72
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と思ったら、
そうでもなかった
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他に必要だったもの
Hardware Model: iPod7,1
OS Version: iPhone OS Version 11.4.1 (Build 15G77)
Report Version: 104
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他に必要だったもの
Hardware Model: iPod7,1
OS Version: iPhone OS Version 11.4.1 (Build 15G77)
Report Version: 104
private func modelName() -> String {
var systemInfo = utsname()
uname(&systemInfo)
return withUnsafePointer(to: &systemInfo.machine) {
$0.withMemoryRebound(to: CChar.self, capacity: 256) {
String(utf8String: $0) ?? ""
}
}
}
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他に必要だったもの
Hardware Model: iPod7,1
OS Version: iPhone OS Version 11.4.1 (Build 15G77)
Report Version: 104
private func osVersion() -> String {
// "Version 11.4.1 (Build 15G77)" operatingSystemVersionString
// ͜Μͳײ͡ͷจࣈྻΛฦ͢
// "11.4.1 (15G77" ·ͨ "11.4.1 (Build 15G77" ͱ͍ͬͨܗࣜΛ
// ؚΜͰ͍ΕOK (→ see parse_OSVersion in symbolicatecrash)
let versionString = ProcessInfo().operatingSystemVersionString
return "iPhone OS \(versionString)"
}
Slide 76
Slide 76 text
他に必要だったもの
Hardware Model: iPod7,1
OS Version: iPhone OS Version 11.4.1 (Build 15G77)
Report Version: 104
104 固定
Slide 77
Slide 77 text
さらに必要だったこと
0 DramaticCrash 0x0000000100eae544 _T013DramaticCrash22reportCallStackSymbolsyyF + 1320
1 DramaticCrash 0x0000000100eb267c _T013DramaticCrash14ViewControllerC8doReportyyF + 20
2 DramaticCrash 0x0000000100eb2584 _T013DramaticCrash14ViewControllerC8onReportyypF + 52
3 DramaticCrash 0x0000000100eb2650 _T013DramaticCrash14ViewControllerC8onReportyypFTo + 84
4 UIKit 0x000000018d68d64c + 96
5 UIKit 0x000000018df67478 + 156
6 UIKit 0x000000018df673a8 + 172
7 UIKit 0x000000018d68d64c + 96
8 UIKit 0x000000018d7ae870 + 80
9 UIKit 0x000000018d693700 + 440
10 UIKit 0x000000018d7c91a8 + 572
11 UIKit 0x000000018d7109e0 + 2428
12 UIKit 0x000000018d705890 + 3160
13 UIKit 0x000000018d7041d0 + 340
Slide 78
Slide 78 text
さらに必要だったこと
Thread 0:
0 DramaticCrash 0x0000000100eae544 _T013DramaticCrash22reportCallStackSymbolsyyF + 1320
1 DramaticCrash 0x0000000100eb267c _T013DramaticCrash14ViewControllerC8doReportyyF + 20
2 DramaticCrash 0x0000000100eb2584 _T013DramaticCrash14ViewControllerC8onReportyypF + 52
3 DramaticCrash 0x0000000100eb2650 _T013DramaticCrash14ViewControllerC8onReportyypFTo + 84
4 UIKit 0x000000018d68d64c + 96
5 UIKit 0x000000018df67478 + 156
6 UIKit 0x000000018df673a8 + 172
7 UIKit 0x000000018d68d64c + 96
8 UIKit 0x000000018d7ae870 + 80
9 UIKit 0x000000018d693700 + 440
10 UIKit 0x000000018d7c91a8 + 572
11 UIKit 0x000000018d7109e0 + 2428
12 UIKit 0x000000018d705890 + 3160
13 UIKit 0x000000018d7041d0 + 340
スレッド番号
たぶん、なんでもいいが、後でわかりやすいように、
メインスレッドなら 0
それ以外のスレッドなら 9999
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Hardware Model: iPod7,1
OS Version: iPhone OS Version 11.4.1 (Build 15G77)
Report Version: 104
Thread 0:
0 DramaticCrash 0x0000000100722544 _T013DramaticCrash22reportCallStackSymbolsyyF + 1320
1 DramaticCrash 0x000000010072667c _T013DramaticCrash14ViewControllerC8doReportyyF + 20
2 DramaticCrash 0x0000000100726584 _T013DramaticCrash14ViewControllerC8onReportyypF + 52
3 DramaticCrash 0x0000000100726650 _T013DramaticCrash14ViewControllerC8onReportyypFTo + 84
4 UIKit 0x000000018d68d64c + 96
5 UIKit 0x000000018df67478 + 156
6 UIKit 0x000000018df673a8 + 172
7 UIKit 0x000000018d68d64c + 96
8 UIKit 0x000000018d7ae870 + 80
9 UIKit 0x000000018d693700 + 440
10 UIKit 0x000000018d7c91a8 + 572
11 UIKit 0x000000018d7109e0 + 2428
12 UIKit 0x000000018d705890 + 3160
13 UIKit 0x000000018d7041d0 + 340
14 UIKit 0x000000018dee5d1c + 2340
15 UIKit 0x000000018dee82c8 + 4744
16 UIKit 0x000000018dee1368 + 152
17 CoreFoundation 0x00000001838c7404 + 24
18 CoreFoundation 0x00000001838c6c2c + 276
19 CoreFoundation 0x00000001838c479c + 1204
20 CoreFoundation 0x00000001837e4da8 CFRunLoopRunSpecific + 552
21 GraphicsServices 0x00000001857ca020 GSEventRunModal + 100
22 UIKit 0x000000018d804758 UIApplicationMain + 236
23 DramaticCrash 0x0000000100728d74 main + 76
24 libdyld.dylib 0x0000000183275fc0 + 4
Binary Images:
0x10071c000 - 0x10072bfff DramaticCrash arm64 <59616b88aa1b3707a50be4a5d098c2ae> /var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/DramaticCrash
0x100758000 - 0x100763fff libBacktraceRecording.dylib arm64 /Developer/usr/lib/libBacktraceRecording.dylib
0x100788000 - 0x1007cbfff libMainThreadChecker.dylib arm64 <3e93edaa83073bea8226aef09b0d193e> /Developer/usr/lib/libMainThreadChecker.dylib
0x100998000 - 0x1009cffff libViewDebuggerSupport.dylib arm64 <389f14338b5f39de885d5febe2d97ca0> /Developer/Library/PrivateFrameworks/DTDDISupport.framework/libViewDebuggerSupport.dylib
0x184251000 - 0x184549fff Foundation arm64 <2eacef3cb1e5323eac1a2e0d743c81a5> /System/Library/Frameworks/Foundation.framework/Foundation
0x182ad0000 - 0x18318bfff libobjc.A.dylib arm64 /usr/lib/libobjc.A.dylib
0x182a52000 - 0x182a53fff libSystem.B.dylib arm64 <0f3f5f4ea60d3d4d84af311421f67108> /usr/lib/libSystem.B.dylib
0x18d4e7000 - 0x18e565fff UIKit arm64 /System/Library/Frameworks/UIKit.framework/UIKit
0x100ab0000 - 0x100dbbfff libswiftCore.dylib arm64 <4fe543830b383378b946c669dd45fdd0> /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Frameworks
0x100744000 - 0x10074bfff libswiftCoreFoundation.dylib arm64 /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/
0x101094000 - 0x1010a7fff libswiftCoreGraphics.dylib arm64 <8c36e2e2550431e9bfba2d7b3c1b929b> /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Fr
0x100770000 - 0x100777fff libswiftCoreImage.dylib arm64 <0a1f05c0b97e3a2d964194e42172b5f6> /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Frame
0x1009f8000 - 0x100a03fff libswiftDarwin.dylib arm64 /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Framewor
0x1010c8000 - 0x1010e3fff libswiftDispatch.dylib arm64 /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Framew
0x101118000 - 0x101273fff libswiftFoundation.dylib arm64 /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Fram
0x1013d4000 - 0x1013dbfff libswiftMetal.dylib arm64 <53726a84151636daa5627acbd8725367> /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Framework
0x1013e8000 - 0x1013effff libswiftObjectiveC.dylib arm64 <062bd1c402933010b791eb1a4d4dc93b> /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Fram
0x101400000 - 0x101407fff libswiftQuartzCore.dylib arm64 <5df1cca7da493ae6bc61aaf18034779e> /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Fram
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Hardware Model: iPod7,1
OS Version: iPhone OS Version 11.4.1 (Build 15G77)
Report Version: 104
Thread 0:
0 DramaticCrash 0x0000000100722544 _T013DramaticCrash22reportCallStackSymbolsyyF + 1320
1 DramaticCrash 0x000000010072667c _T013DramaticCrash14ViewControllerC8doReportyyF + 20
2 DramaticCrash 0x0000000100726584 _T013DramaticCrash14ViewControllerC8onReportyypF + 52
3 DramaticCrash 0x0000000100726650 _T013DramaticCrash14ViewControllerC8onReportyypFTo + 84
4 UIKit 0x000000018d68d64c + 96
5 UIKit 0x000000018df67478 + 156
6 UIKit 0x000000018df673a8 + 172
7 UIKit 0x000000018d68d64c + 96
8 UIKit 0x000000018d7ae870 + 80
9 UIKit 0x000000018d693700 + 440
10 UIKit 0x000000018d7c91a8 + 572
11 UIKit 0x000000018d7109e0 + 2428
12 UIKit 0x000000018d705890 + 3160
13 UIKit 0x000000018d7041d0 + 340
14 UIKit 0x000000018dee5d1c + 2340
15 UIKit 0x000000018dee82c8 + 4744
16 UIKit 0x000000018dee1368 + 152
17 CoreFoundation 0x00000001838c7404 + 24
18 CoreFoundation 0x00000001838c6c2c + 276
19 CoreFoundation 0x00000001838c479c + 1204
20 CoreFoundation 0x00000001837e4da8 CFRunLoopRunSpecific + 552
21 GraphicsServices 0x00000001857ca020 GSEventRunModal + 100
22 UIKit 0x000000018d804758 UIApplicationMain + 236
23 DramaticCrash 0x0000000100728d74 main + 76
24 libdyld.dylib 0x0000000183275fc0 + 4
Binary Images:
0x10071c000 - 0x10072bfff DramaticCrash arm64 <59616b88aa1b3707a50be4a5d098c2ae> /var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/DramaticCrash
0x100758000 - 0x100763fff libBacktraceRecording.dylib arm64 /Developer/usr/lib/libBacktraceRecording.dylib
0x100788000 - 0x1007cbfff libMainThreadChecker.dylib arm64 <3e93edaa83073bea8226aef09b0d193e> /Developer/usr/lib/libMainThreadChecker.dylib
0x100998000 - 0x1009cffff libViewDebuggerSupport.dylib arm64 <389f14338b5f39de885d5febe2d97ca0> /Developer/Library/PrivateFrameworks/DTDDISupport.framework/libViewDebuggerSupport.dylib
0x184251000 - 0x184549fff Foundation arm64 <2eacef3cb1e5323eac1a2e0d743c81a5> /System/Library/Frameworks/Foundation.framework/Foundation
0x182ad0000 - 0x18318bfff libobjc.A.dylib arm64 /usr/lib/libobjc.A.dylib
0x182a52000 - 0x182a53fff libSystem.B.dylib arm64 <0f3f5f4ea60d3d4d84af311421f67108> /usr/lib/libSystem.B.dylib
0x18d4e7000 - 0x18e565fff UIKit arm64 /System/Library/Frameworks/UIKit.framework/UIKit
0x100ab0000 - 0x100dbbfff libswiftCore.dylib arm64 <4fe543830b383378b946c669dd45fdd0> /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Frameworks
0x100744000 - 0x10074bfff libswiftCoreFoundation.dylib arm64 /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/
0x101094000 - 0x1010a7fff libswiftCoreGraphics.dylib arm64 <8c36e2e2550431e9bfba2d7b3c1b929b> /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Fr
0x100770000 - 0x100777fff libswiftCoreImage.dylib arm64 <0a1f05c0b97e3a2d964194e42172b5f6> /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Frame
0x1009f8000 - 0x100a03fff libswiftDarwin.dylib arm64 /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Framewor
0x1010c8000 - 0x1010e3fff libswiftDispatch.dylib arm64 /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Framew
0x101118000 - 0x101273fff libswiftFoundation.dylib arm64 /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Fram
0x1013d4000 - 0x1013dbfff libswiftMetal.dylib arm64 <53726a84151636daa5627acbd8725367> /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Framework
0x1013e8000 - 0x1013effff libswiftObjectiveC.dylib arm64 <062bd1c402933010b791eb1a4d4dc93b> /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Fram
0x101400000 - 0x101407fff libswiftQuartzCore.dylib arm64 <5df1cca7da493ae6bc61aaf18034779e> /private/var/containers/Bundle/Application/326D8604-3276-4A65-91AD-5642411B0944/DramaticCrash.app/Fram
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シンボリケート済み扱いされている
0x0000000100722544 _T013DramaticCrash22reportCallStackSymbolsyyF + 1320
シンボル
0x0000000100722544 0x10072201c + 1320
0x0000000100722544 - 1320
無理やりアドレスになおしてやる
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Hardware Model: iPod7,1
OS Version: iPhone OS Version 11.4.1 (Build 15G77)
Report Version: 104
Thread 0:
0 DramaticCrash 0x00000001011c80cc 0x1011c7ba4 + 1320
1 DramaticCrash 0x00000001011cdef4 0x1011cdee0 + 20
2 DramaticCrash 0x00000001011cddfc 0x1011cddc8 + 52
3 DramaticCrash 0x00000001011cdec8 0x1011cde74 + 84
4 UIKit 0x000000018d68d64c 0x18d68d5ec + 96
5 UIKit 0x000000018df67478 0x18df673dc + 156
6 UIKit 0x000000018df673a8 0x18df672fc + 172
7 UIKit 0x000000018d68d64c 0x18d68d5ec + 96
8 UIKit 0x000000018d7ae870 0x18d7ae820 + 80
9 UIKit 0x000000018d693700 0x18d693548 + 440
10 UIKit 0x000000018d7c91a8 0x18d7c8f6c + 572
11 UIKit 0x000000018d7109e0 0x18d710064 + 2428
12 UIKit 0x000000018d705890 0x18d704c38 + 3160
13 UIKit 0x000000018d7041d0 0x18d70407c + 340
14 UIKit 0x000000018dee5d1c 0x18dee53f8 + 2340
15 UIKit 0x000000018dee82c8 0x18dee7040 + 4744
16 UIKit 0x000000018dee1368 0x18dee12d0 + 152
17 CoreFoundation 0x00000001838c7404 0x1838c73ec + 24
18 CoreFoundation 0x00000001838c6c2c 0x1838c6b18 + 276
19 CoreFoundation 0x00000001838c479c 0x1838c42e8 + 1204
20 CoreFoundation 0x00000001837e4da8 0x1837e4b80 + 552
21 GraphicsServices 0x00000001857ca020 0x1857c9fbc + 100
22 UIKit 0x000000018d804758 0x18d80466c + 236
23 DramaticCrash 0x00000001011d05d4 0x1011d0588 + 76
24 libdyld.dylib 0x0000000183275fc0 0x183275fbc + 4
Binary Images:
0x1011c0000 - 0x1011d3fff DramaticCrash arm64 <2a979b7168af3e589fe51fc03dd461b0> /var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/DramaticCrash
0x1011f0000 - 0x1011fbfff libBacktraceRecording.dylib arm64 /Developer/usr/lib/libBacktraceRecording.dylib
0x101318000 - 0x10135bfff libMainThreadChecker.dylib arm64 <3e93edaa83073bea8226aef09b0d193e> /Developer/usr/lib/libMainThreadChecker.dylib
0x101208000 - 0x10123ffff libViewDebuggerSupport.dylib arm64 <389f14338b5f39de885d5febe2d97ca0> /Developer/Library/PrivateFrameworks/DTDDISupport.framework/libViewDebuggerSupport.dylib
0x184251000 - 0x184549fff Foundation arm64 <2eacef3cb1e5323eac1a2e0d743c81a5> /System/Library/Frameworks/Foundation.framework/Foundation
0x182ad0000 - 0x18318bfff libobjc.A.dylib arm64 /usr/lib/libobjc.A.dylib
0x182a52000 - 0x182a53fff libSystem.B.dylib arm64 <0f3f5f4ea60d3d4d84af311421f67108> /usr/lib/libSystem.B.dylib
0x18d4e7000 - 0x18e565fff UIKit arm64 /System/Library/Frameworks/UIKit.framework/UIKit
0x101528000 - 0x101833fff libswiftCore.dylib arm64 <4fe543830b383378b946c669dd45fdd0> /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Frameworks
0x101268000 - 0x10126ffff libswiftCoreFoundation.dylib arm64 /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/
0x101b0c000 - 0x101b1ffff libswiftCoreGraphics.dylib arm64 <8c36e2e2550431e9bfba2d7b3c1b929b> /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Fr
0x101b40000 - 0x101b47fff libswiftCoreImage.dylib arm64 <0a1f05c0b97e3a2d964194e42172b5f6> /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Frame
0x101b54000 - 0x101b5ffff libswiftDarwin.dylib arm64 /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Framewor
0x101b74000 - 0x101b8ffff libswiftDispatch.dylib arm64 /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Framew
0x101bc4000 - 0x101d1ffff libswiftFoundation.dylib arm64 /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Fram
0x101e80000 - 0x101e87fff libswiftMetal.dylib arm64 <53726a84151636daa5627acbd8725367> /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Framework
0x101e94000 - 0x101e9bfff libswiftObjectiveC.dylib arm64 <062bd1c402933010b791eb1a4d4dc93b> /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Fram
0x101eac000 - 0x101eb3fff libswiftQuartzCore.dylib arm64 <5df1cca7da493ae6bc61aaf18034779e> /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Fram
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Hardware Model: iPod7,1
OS Version: iPhone OS Version 11.4.1 (Build 15G77)
Report Version: 104
Thread 0:
0 DramaticCrash 0x00000001011c80cc reportCallStackSymbols() + 1320 (CallStackReporter.swift:47)
1 DramaticCrash 0x00000001011cdef4 ViewController.doReport() + 20 (ViewController.swift:73)
2 DramaticCrash 0x00000001011cddfc ViewController.onReport(_:) + 52 (ViewController.swift:69)
3 DramaticCrash 0x00000001011cdec8 @objc ViewController.onReport(_:) + 84 (ViewController.swift:0)
4 UIKit 0x000000018d68d64c -[UIApplication sendAction:to:from:forEvent:] + 96
5 UIKit 0x000000018df67478 __45-[_UIButtonBarTargetAction _invoke:forEvent:]_block_invoke + 156
6 UIKit 0x000000018df673a8 -[_UIButtonBarTargetAction _invoke:forEvent:] + 172
7 UIKit 0x000000018d68d64c -[UIApplication sendAction:to:from:forEvent:] + 96
8 UIKit 0x000000018d7ae870 -[UIControl sendAction:to:forEvent:] + 80
9 UIKit 0x000000018d693700 -[UIControl _sendActionsForEvents:withEvent:] + 440
10 UIKit 0x000000018d7c91a8 -[UIControl touchesEnded:withEvent:] + 572
11 UIKit 0x000000018d7109e0 -[UIWindow _sendTouchesForEvent:] + 2428
12 UIKit 0x000000018d705890 -[UIWindow sendEvent:] + 3160
13 UIKit 0x000000018d7041d0 -[UIApplication sendEvent:] + 340
14 UIKit 0x000000018dee5d1c __dispatchPreprocessedEventFromEventQueue + 2340
15 UIKit 0x000000018dee82c8 __handleEventQueueInternal + 4744
16 UIKit 0x000000018dee1368 __handleHIDEventFetcherDrain + 152
17 CoreFoundation 0x00000001838c7404 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24
18 CoreFoundation 0x00000001838c6c2c __CFRunLoopDoSources0 + 276
19 CoreFoundation 0x00000001838c479c __CFRunLoopRun + 1204
20 CoreFoundation 0x00000001837e4da8 CFRunLoopRunSpecific + 552
21 GraphicsServices 0x00000001857ca020 GSEventRunModal + 100
22 UIKit 0x000000018d804758 UIApplicationMain + 236
23 DramaticCrash 0x00000001011d05d4 main + 76 (AppDelegate.swift:29)
24 libdyld.dylib 0x0000000183275fc0 start + 4
Binary Images:
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0x1011f0000 - 0x1011fbfff libBacktraceRecording.dylib arm64 /Developer/usr/lib/libBacktraceRecording.dylib
0x101318000 - 0x10135bfff libMainThreadChecker.dylib arm64 <3e93edaa83073bea8226aef09b0d193e> /Developer/usr/lib/libMainThreadChecker.dylib
0x101208000 - 0x10123ffff libViewDebuggerSupport.dylib arm64 <389f14338b5f39de885d5febe2d97ca0> /Developer/Library/PrivateFrameworks/DTDDISupport.framework/libViewDebuggerSupport.dylib
0x184251000 - 0x184549fff Foundation arm64 <2eacef3cb1e5323eac1a2e0d743c81a5> /System/Library/Frameworks/Foundation.framework/Foundation
0x182ad0000 - 0x18318bfff libobjc.A.dylib arm64 /usr/lib/libobjc.A.dylib
0x182a52000 - 0x182a53fff libSystem.B.dylib arm64 <0f3f5f4ea60d3d4d84af311421f67108> /usr/lib/libSystem.B.dylib
0x18d4e7000 - 0x18e565fff UIKit arm64 /System/Library/Frameworks/UIKit.framework/UIKit
0x101528000 - 0x101833fff libswiftCore.dylib arm64 <4fe543830b383378b946c669dd45fdd0> /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Frameworks
0x101268000 - 0x10126ffff libswiftCoreFoundation.dylib arm64 /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/
0x101b0c000 - 0x101b1ffff libswiftCoreGraphics.dylib arm64 <8c36e2e2550431e9bfba2d7b3c1b929b> /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Fr
0x101b40000 - 0x101b47fff libswiftCoreImage.dylib arm64 <0a1f05c0b97e3a2d964194e42172b5f6> /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Frame
0x101b54000 - 0x101b5ffff libswiftDarwin.dylib arm64 /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Framewor
0x101b74000 - 0x101b8ffff libswiftDispatch.dylib arm64 /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Framew
0x101bc4000 - 0x101d1ffff libswiftFoundation.dylib arm64 /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Fram
0x101e80000 - 0x101e87fff libswiftMetal.dylib arm64 <53726a84151636daa5627acbd8725367> /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Framework
0x101e94000 - 0x101e9bfff libswiftObjectiveC.dylib arm64 <062bd1c402933010b791eb1a4d4dc93b> /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Fram
0x101eac000 - 0x101eb3fff libswiftQuartzCore.dylib arm64 <5df1cca7da493ae6bc61aaf18034779e> /private/var/containers/Bundle/Application/4F9950A3-9297-4E93-8ECD-E58B81E9C615/DramaticCrash.app/Fram
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第３部 まとめ
• _dyld系のC関数も使って、なんとかクラッシュロ
グっぽいものを作ることは可能！
• 実用に耐えうるかどうかは？
https://gist.github.com/hironytic/c053ea12a0a05d22d54640b2e9e69efa
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今日のおはなし
• クラッシュログはデバイスに残っている
• symbolicatecrashでシンボリケートできる。
• シンボリケートに失敗するときはdSYMファイルやOS
のデバッグシンボルが揃っているか確認
• クラッシュしなくてもコールスタックをログに書き
出して後でシンボリケートできる…かもしれない