Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
LLDB + chisel = ∞
Search
Toshihiro Morimoto
April 26, 2014
Technology
11
3.7k
LLDB + chisel = ∞
yidev東京第二回の発表内容です。
デモ動画 =>
https://www.youtube.com/watch?v=5NdfK33pEH8
Toshihiro Morimoto
April 26, 2014
Tweet
Share
More Decks by Toshihiro Morimoto
See All by Toshihiro Morimoto
Xcode8 で開発はどうかわったのか
dealforest
10
6.2k
魅せるデバッグ技術
dealforest
4
1.5k
LLDB の世界からみた Swift
dealforest
4
5.2k
Xcode で快適なデバッグライフを追い求める
dealforest
29
23k
Intrducing debug in WWDC2016
dealforest
3
770
swift build と Xcode での Build の違い
dealforest
3
2k
RIP Xcode Plugin 🙏
dealforest
0
4.8k
Introducing Xcode Editor Extension
dealforest
2
4.6k
Introducing Anglerfish
dealforest
2
3.4k
Other Decks in Technology
See All in Technology
GitHub Copilot の概要
tomokusaba
1
150
AI導入の理想と現実~コストと浸透〜
oprstchn
0
170
マーケットプレイス版Oracle WebCenter Content For OCI
oracle4engineer
PRO
3
940
生成AI活用の組織格差を解消する 〜ビジネス職のCursor導入が開発効率に与えた好循環〜 / Closing the Organizational Gap in AI Adoption
upamune
6
4.8k
20250625 Snowflake Summit 2025活用事例 レポート / Nowcast Snowflake Summit 2025 Case Study Report
kkuv
1
390
B2C&B2B&社内向けサービスを抱える開発組織におけるサービス価値を最大化するイニシアチブ管理
belongadmin
1
4.5k
無意味な開発生産性の議論から抜け出すための予兆検知とお金とAI
i35_267
2
8.9k
Core Audio tapを使ったリアルタイム音声処理のお話
yuta0306
0
170
CursorによるPMO業務の代替 / Automating PMO Tasks with Cursor
motoyoshi_kakaku
2
870
生成AI時代の開発組織・技術・プロセス 〜 ログラスの挑戦と考察 〜
itohiro73
1
400
2025-07-06 QGIS初級ハンズオン「はじめてのQGIS」
kou_kita
0
120
あなたの声を届けよう! 女性エンジニア登壇の意義とアウトプット実践ガイド #wttjp / Call for Your Voice
kondoyuko
4
530
Featured
See All Featured
Put a Button on it: Removing Barriers to Going Fast.
kastner
60
3.9k
Into the Great Unknown - MozCon
thekraken
39
1.9k
Why You Should Never Use an ORM
jnunemaker
PRO
58
9.4k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
32
2.4k
Become a Pro
speakerdeck
PRO
28
5.4k
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
danielanewman
229
22k
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
smashingmag
252
21k
Sharpening the Axe: The Primacy of Toolmaking
bcantrill
44
2.4k
Six Lessons from altMBA
skipperchong
28
3.9k
Docker and Python
trallard
44
3.5k
Facilitating Awesome Meetings
lara
54
6.4k
Speed Design
sergeychernyshev
32
1k
Transcript
LLDB + chisel = ∞ 2014/04/26 yidev౦ژୈೋճ @dealforest Toshihro Morimoto
ࣗݾհ http://about.me/dealforest ! ! iOS App / Web Application(perl, ruby)
@dealforest Toshihro Morimoto
Έͳ͞Μ LLDB ͔ͭͬͯ·͔͢ʁ
ͱ͋Δੲ…
LLDB ͕σϑΥϧτͷ Debugger ͱͳΓ·͕ͨ͠ OS X 10.8.4 Ͱ Xcode ͔ΒΞϓϦέʔγϣϯΛ
iOS Simulator Ͱ࣮ߦͨ͠ͱ͖ʹ SIGABRT Ͱ ΞϓϦ͕ىಈͤͣʹ crash ͢Δ (※Xcode 4.6.3 Ͱमਖ਼͞Ε·ͨ͠)
ղܾࡦ σόοΨΛ LLDB ͔Β GDB ʹมߋ͢Δ
ͱ͍͏͜ͱ͕Γ·͕ͨ͠ Xcode 5.1.1 ͷࡢࠓ Έͳ͞Μ LLDB ͬͯ·͢ΑͶʁ
ͳͥ LLDB(σόοΨ) ʹ ݻࣥ͢Δͷ͔ʁ
ϓϩδΣΫτʹґଘͤͣ͠ʹ σόοά͍ͨ͠
؆୯ͳ͓͞Β͍
iOS Advent Calendar 2013 6
͓͞Β͍ͷ༰ • object ͷදࣔ/มߋ/ఆٛ/ • Python ͷ࣮ߦ • Inspector ͷΧελϚΠζ
• ΧελϜίϚϯυͷ࡞ • ઃఆϑΝΠϧ
object Λදࣔ (llbd) po [“obejct” or “address”] (lldb) p [“primitive
value” or “address”]
object ͷΛมߋ (lldb) po self.title = @“hoge”
object Λఆٛ (lldb) po NSString *$hoge = @“hoge” (lldb) po
$hoge
Python ͷ࣮ߦ (lldb) script print 'hoge'
Python ͷ࣮ߦ (lldb) script import os (lldb) script print os.getcwd()
ΧελϜίϚϯυͷ࡞ ΊΜͲ͍͘͞ͷͰ Qiita Λݟ͍ͯͩ͘͞
Inspector ͷΧελϚΠζ http://stavash.wordpress.com/2013/01/06/advanced-issues-creating-custom-lldb- object-summaries/
Inspector ͷΧελϚΠζ
Inspector ͷΧελϚΠζ
ઃఆϑΝΠϧ 1. ~/.lldbinit-Xcode • Xcode ͔Βىಈͨ͠ࡍͷઃఆΛهೖ 2. ~/.lldbinit • shell
͔Βىಈͨ͠ࡍͷઃఆΛهೖ
ઃఆϑΝΠϧ ~/.lldbinit-Xcode ͕͋Δ߹ ~/.lldbinit ͕ಡΈࠐ·Εͳ͍ͷͰཁҙ
ઃఆϑΝΠϧ ~/.lldbinit-Xcode ʹ command source ~/.lldbinit Λهೖ͓ͯ͘͜͠ͱͰճආՄೳ
ઃఆϑΝΠϧʹ alias Λॻ͘͜ͱ͕Ͱ͖·͢
ศརͳ alias Λհ
stacktrace Λදࣔ (lldb) st ! command regex st 's/^[[:space:]]*$/po [NSThread
callStackSymbols]/'
ڥมΛදࣔ (lldb) pe ! command regex pe 's/^[[:space:]]*$/po [[NSProcessInfo processInfo]
environment]/'
NSDate Λ NSString ʹมͯ͠දࣔ (lldb) pd [NSDate] ! command regex
pd 's/^(.+)$/po [[NSString alloc] initWithData: %1 encoding:4]/'
CALayer ͷ Animation ͷมߋ (lldb) pa 0.4 # slow (lldb)
pa 1 # normal ! command regex pa 's/^(.+)$/p [(CALayer *)[[[[UIApplication sharedApplication] windows] objectAtIndex: 0] layer] setSpeed:%1]/'
؆୯ͳ͓͞Β͍͓ΘΓ
ຊ
Xcode 5.1 ͔Β break தʹ QuickLook Ͱදࣔ͞ΕΔΑ͏ʹͳΓ·ͨ͠
None
͋͘·Ͱίʔυ্ʹ ରͷ Object ͕ͳ͍ͱ ͍͚ͳ͔ͬͨΓԿ͔ͱෆศͰ͢
ͬͱࣗ༝ʹௐ͍ͨ
ίϚϯυΛཧ͢ΔͷΊΜͲ͍͘͞
alias Λཧ͢ΔͷΊΜͲ͍͘͞
ϝϯςφϯε͢ΔͷΊΜͲ͍͘͞
ͦΜͳଵଦͳΈͳ͞·ͷ ͨΊʹศརͳͷ͕͋Γ·͢
facebook/chisel https://github.com/facebook/chisel
Install $ brew install chisel or $ git clone https://github.com/
facebook/chisel.git
Install $ echo “command script import / path/to/fblldb.py” >> ~/.lldbinit
chisel - version 1.1.0 • Python Ͱॻ͔Ε͍ͯ·͢ • LLDB ༻ͷ
Debug ʹཱͭίϚϯυू • ࣮ػͰ͑Δ • ֤ʑͷ։ൃڥͰઃఆͯ͠Ε͍͍
தͰศརͳίϚϯυΛհ͠·͢
border/unborder ઢΛදࣔ/ඇදࣔ
pclass ࢠؔ(inherits from)Λදࣔ
pvc/pviews/ptv/pcells recursiveDiscription ͷ݁ՌΛ filtering
presponder Responder Chain Λදࣔ
bmessage ࢦఆͨ͠ selector ʹ breakpoint Λઃఆ
visualize ը૾ͱͯ͠ग़ྗ
taplog tap ͨ͠ object ͷ description Λදࣔ
DEMO
·ͱΊ chisel Λ͏ͱϓϩδΣΫτʹ ࠨӈ͞Εͳ͍σόοΫڥ͕ खʹ͍Γ·͢
͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠