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

Transcript

1. LLDB + chisel = ∞ 2014/04/26 yidev౦ژୈೋճ @dealforest Toshihro Morimoto
2. ࣗݾ঺հ http://about.me/dealforest ! ! iOS App / Web Application(perl, ruby) @dealforest Toshihro Morimoto
3. Έͳ͞Μ LLDB ͔ͭͬͯ·͔͢ʁ
4. ͱ͋Δੲ…
5. 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·ͨ͠)
6. ղܾࡦ σόοΨΛ LLDB ͔Β GDB ʹมߋ͢Δ
7. ͱ͍͏͜ͱ͕Γ·͕ͨ͠ Xcode 5.1.1 ͷࡢࠓ Έͳ͞Μ LLDB ࢖ͬͯ·͢ΑͶʁ
8. ͳͥ LLDB(σόοΨ) ʹ ݻࣥ͢Δͷ͔ʁ
9. ϓϩδΣΫτʹґଘͤͣ͠ʹ σόοά͍ͨ͠
10. ؆୯ͳ͓͞Β͍
11. iOS Advent Calendar 2013 6೔໨
12. ͓͞Β͍ͷ಺༰ • object ͷදࣔ/มߋ/ఆٛ/ • Python ͷ࣮ߦ • Inspector ͷΧελϚΠζ • ΧελϜίϚϯυͷ࡞੒ • ઃఆϑΝΠϧ
13. object Λදࣔ (llbd) po [“obejct” or “address”] (lldb) p [“primitive value” or “address”]
14. object ͷ஋Λมߋ (lldb) po self.title = @“hoge”
15. object Λఆٛ (lldb) po NSString *$hoge = @“hoge” (lldb) po $hoge
16. Python ͷ࣮ߦ (lldb) script print 'hoge'
17. Python ͷ࣮ߦ (lldb) script import os (lldb) script print os.getcwd()
18. ΧελϜίϚϯυͷ࡞੒ ΊΜͲ͍͘͞ͷͰ Qiita Λݟ͍ͯͩ͘͞
19. Inspector ͷΧελϚΠζ http://stavash.wordpress.com/2013/01/06/advanced-issues-creating-custom-lldb- object-summaries/
20. Inspector ͷΧελϚΠζ
21. Inspector ͷΧελϚΠζ
22. ઃఆϑΝΠϧ 1. ~/.lldbinit-Xcode • Xcode ͔Βىಈͨ͠ࡍͷઃఆΛهೖ 2. ~/.lldbinit • shell ͔Βىಈͨ͠ࡍͷઃఆΛهೖ
23. ઃఆϑΝΠϧ ~/.lldbinit-Xcode ͕͋Δ৔߹͸ ~/.lldbinit ͕ಡΈࠐ·Εͳ͍ͷͰཁ஫ҙ
24. ઃఆϑΝΠϧ ~/.lldbinit-Xcode ʹ command source ~/.lldbinit Λهೖ͓ͯ͘͜͠ͱͰճආՄೳ
25. ઃఆϑΝΠϧʹ alias Λॻ͘͜ͱ͕Ͱ͖·͢
26. ศརͳ alias Λ঺հ
27. stacktrace Λදࣔ (lldb) st ! command regex st 's/^[[:space:]]*$/po [NSThread callStackSymbols]/'
28. ؀ڥม਺Λදࣔ (lldb) pe ! command regex pe 's/^[[:space:]]*$/po [[NSProcessInfo processInfo] environment]/'
29. NSDate Λ NSString ʹม׵ͯ͠දࣔ (lldb) pd [NSDate] ! command regex pd 's/^(.+)$/po [[NSString alloc] initWithData: %1 encoding:4]/'
30. 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]/'
31. ؆୯ͳ͓͞Β͍͓ΘΓ
32. ຊ୊
33. Xcode 5.1 ͔Β break தʹ QuickLook Ͱදࣔ͞ΕΔΑ͏ʹͳΓ·ͨ͠
35. ͋͘·Ͱίʔυ্ʹ ର৅ͷ Object ͕ͳ͍ͱ ͍͚ͳ͔ͬͨΓԿ͔ͱෆศͰ͢
36. ΋ͬͱࣗ༝ʹௐ΂͍ͨ
37. ίϚϯυΛ؅ཧ͢ΔͷΊΜͲ͍͘͞
38. alias Λ؅ཧ͢ΔͷΊΜͲ͍͘͞
39. ϝϯςφϯε͢Δͷ΋ΊΜͲ͍͘͞
40. ͦΜͳଵଦͳΈͳ͞·ͷ ͨΊʹศརͳ΋ͷ͕͋Γ·͢
41. facebook/chisel https://github.com/facebook/chisel
42. Install $ brew install chisel or $ git clone https://github.com/ facebook/chisel.git
43. Install $ echo “command script import / path/to/fblldb.py” >> ~/.lldbinit
44. chisel - version 1.1.0 • Python Ͱॻ͔Ε͍ͯ·͢ • LLDB ༻ͷ Debug ʹ໾ཱͭίϚϯυू • ࣮ػͰ΋࢖͑Δ • ֤ʑͷ։ൃ؀ڥͰઃఆͯ͠Ε͹͍͍
45. தͰ΋ศརͳίϚϯυΛ঺հ͠·͢
46. border/unborder ࿮ઢΛදࣔ/ඇදࣔ
47. pclass ਌ࢠؔ܎(inherits from)Λදࣔ
48. pvc/pviews/ptv/pcells recursiveDiscription ͷ݁ՌΛ filtering
49. presponder Responder Chain Λදࣔ
50. bmessage ࢦఆͨ͠ selector ʹ breakpoint Λઃఆ
51. visualize ը૾ͱͯ͠ग़ྗ
52. taplog tap ͨ͠ object ͷ description Λදࣔ
53. DEMO
54. ·ͱΊ chisel Λ࢖͏ͱϓϩδΣΫτʹ ࠨӈ͞Εͳ͍σόοΫ؀ڥ͕ खʹ͸͍Γ·͢
55. ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠