App Extension のスタックトレース情報からクラッシュを解析/集計する / Analyzing app extension's stack trace

配信アプリで使用している Broadcast Extension 上で発生したクラッシュの詳細について、クラッシュ発生時のスタックトレースを取得して解析し、複数のクラッシュの修正に繋げた話。

Transcript

1. "QQ
   &YUFOTJPO
   ͷελοΫτϨʔε৘ใ͔Β ΫϥογϡΛղੳूܭ͢Δ /BSVLJ
   $IJHJSB !@OBSV@KQO J04%$
   
2. ϛϥςΟϒΞϓϦͷ͝঺հ
3. 
   ࠓճͷ࿩ͷഎܠ
4. & ΞϓϦຊମ #SPBEDBTU
   &YUFOTJPO ϛϥςΟϒͷ
   J04
   ΞϓϦ͸
   #SPBEDBTU
   &YUFOTJPO
   Λར༻ͯ͠഑৴ॲཧΛ͍ͯ͠Δ
5. & ΞϓϦຊମ #SPBEDBTU
   &YUFOTJPO ΞϓϦຊମͱ
   #SPBEDBTU
   &YUFOTJPO
   ͸ผͷϓϩηεͱͯ͠ಈ࡞͍ͯͯ͠ɺ
   
   ྫ͑͹ͲͪΒ͔͕Ϋϥογϡͯ͠΋ɺ΋͏Ұํ͸ಈ͖ଓ͚͍ͯͨΓ͢Δ 💥 ഑৴ͯ͠ΔΑ Ϋϥογϡͨ͠
6. & ΞϓϦຊମ #SPBEDBTU
   &YUFOTJPO Ϋϥογϡ͕ൃੜͨ࣌͠ɺ
   ͦΕͧΕͰߦ͍ͬͯΔॲཧ΋ҟͳ͍ͬͯΔ 💥 💥
7. ΞϓϦຊମ ΞϓϦຊମ͸Ϋϥογϡ৘ใΛ
   'JSFCBTF
   $SBTIMZUJDT
   ʹૹ৴͍ͯͯ͠ɺ
   'JSFCBTF
   ͷίϯιʔϧ্ͰΫϥογϡΛ֬ೝͯ͠ରԠ͍ͯ͠Δ 💥 📝
8. ϩά༻αʔόʔ & #SPBEDBTU
   &YUFOTJPO #SPBEDBTU
   &YUFOTJPO
   ʹ͸
   'JSFCBTF
   $SBTIMZUJDT
   ͸૊Έࠐ·Ε͓ͯΒͣɺ
   ಠࣗʹΫϥογϡ࣌ͷ৘ใΛऔಘ͍ͯ͠Δ 💥 📝 5ISFBEDBMM4UBDL4ZNCPMT
9. ϩά༻αʔόʔ & #SPBEDBTU
   &YUFOTJPO ݩʑɺϩά͸Ϋϥογϡͷൃੜස౓Λ೺Ѳ͢ΔͨΊʹ࢖༻͞Ε͍ͯͯɺ
   औಘ͞Ε͍ͯΔ৘ใΛݟ͚ͨͩͰ͸Ϋϥογϡͷৄࡉ͸෼͔Βͳ͍ 💥 📝 5ISFBEDBMM4UBDL4ZNCPMT
10. ˠ
    #SPBEDBTU
    &YUFOTJPO
    ͷΫϥογϡͷमਖ਼͸
    ΞϓϦຊମͱൺֱͯ͠ɺܦݧʹґΔͱ͜Ζ͕େ͖͔ͬͨ ݩʑɺϩά͸Ϋϥογϡͷൃੜස౓Λ೺Ѳ͢ΔͨΊʹ࢖༻͞Ε͍ͯͯɺ
    औಘ͞Ε͍ͯΔ৘ใΛݟ͚ͨͩͰ͸Ϋϥογϡͷৄࡉ͸෼͔Βͳ͍
11. & ΞϓϦຊମ #SPBEDBTU
    &YUFOTJPO ೥ͷ͸͡ΊɺʮΠϠϗϯ഑৴ʯͱݺ͹Ε͍ͯΔػೳͷվमʹ൐ͬͯ
    #SPBEDBTU
    &YUFOTJPO
    Ͱ৽ͨͳΫϥογϡ͕ൃੜ͢Δ͜ͱ͕ͳΜͱͳ͘෼͔͍ͬͯͨ 💥
12. ˠ
    Ͳ͏͍͏಺༰ͷΫϥογϡ͕ɺ
    Ͳͷ͘Β͍ͷׂ߹Ͱൃੜ͍ͯ͠Δ͔ௐ΂Δखஈ͕ཉ͔ͬͨ͠ ೥ͷ͸͡ΊɺʮΠϠϗϯ഑৴ʯͱݺ͹Ε͍ͯΔػೳͷվमʹ൐ͬͯ
    #SPBEDBTU
    &YUFOTJPO
    Ͱ৽ͨͳΫϥογϡ͕ൃੜ͢Δ͜ͱ͕ͳΜͱͳ͘෼͔͍ͬͯͨ
13. #SPBEDBTU
    &YUFOTJPO
    ʹ΋
    'JSFCBTF
    $SBTIMZUJDT
    Λ૊ΈࠐΉ
    ˠ
    ͦ΋ͦ΋Ͱ͖Δͷ͔஌Βͳ͍
    ΫϥογϡΛௐ΂ͯΔͷʹ৽͍͠໰୊͕ग़ͨΒා͍ Broadcast Extension ͸σϦέʔτͳͷͰۃྗ৮Γͨ͘ͳ͍
14. 9DPEF
    ͷ
    0SHBOJ[FS
    ΛཔΔ
    ˠ
    ಺༰Λཧղ͢Δͷʹܦݧ͕ඞཁͩͬͨ
    ͨͱ͑͹
    4IBSFE
    ʹ
    EP0VUQVU1SPDFTT
    ͱ͍͏ϝιου͸ଘࡏ͠ͳ͍
15. #SPBEDBTU
    &YUFOTJPO
    Ͱϩάͱͯ͠औಘ͍ͯ͠Δ
    ελοΫτϨʔε DBMM4UBDL4ZNCPMT ͷ৘ใΛ׆༻͢Δ
    ˠ
    ͪΐ͏Ͳ
    6OJUZ
    'SBNFXPSL
    ͷΫϥογϡ΋ௐ͍ࠪͯͯ͠
    E4:.
    ·ΘΓΛௐ΂͍ͯͨ͜ͱ΋͋ΓɺͰ͖ͦ͏ͳؾ͕ͨ͠ Mirrativ tech blog - ʲiOSʳUnity Framework ͱΫϥογϡղੳͷऔΓ૊Έ
16. "QQ
    &YUFOTJPO
    ͷελοΫτϨʔε৘ใ͔Β
    ΫϥογϡΛղੳूܭ͢Δ  Ϋϥογϡ࣌ͷελοΫτϨʔεΛऔಘ͢Δ
     E4:.
    ϑΝΠϧΛͱͬͯ͘Δ
     BUPT
    ίϚϯυͰελοΫτϨʔεΛղੳ͢Δ
     ղੳΛࣗಈԽͯ͠ूܭ͢Δ
     ΫϥογϡΛमਖ਼͢Δ ඞཁͳࡐྉΛଗ͑Δ खಈͰղੳ͢Δ ࣗಈͰղੳ͢Δ मਖ਼͢Δ
17. 
    Ϋϥογϡ࣌ͷελοΫτϨʔεΛऔಘ͢Δ
18. 
    Ϋϥογϡݕ஌ͱϋϯυϦϯά class func setup() { // ྫ֎ͷݕ஌ͱ࣮ߦ͢Δؔ਺ͷࢦఆ NSSetUncaughtExceptionHandler(exceptionHandler) // γάφϧͷݕ஌ͱ࣮ߦ͢Δؔ਺ͷࢦఆ for sigcontext in [SIGABRT, SIGILL, SIGSEGV, SIGFPE, SIGBUS, SIGPIPE, SIGTRAP] { signal(sigcontext, signalHandler) } } private static let exceptionHandler: @convention(c) (NSException) -> () = { exeption in handleSignalException(exeption: exeption) } private static let signalHandler: @convention(c) (Int32) -> () = { signal in handleSignalException() } https://stackover fl ow.com/questions/36325140/how-to-catch-a-swift-crash-and-do-some-logging
19. 
    ίʔϧελοΫͷऔಘ let callstack = exception.callStackSymbols.joined(separator: “\n”) // ΋͘͠͸ let callstack = Thread.callStackSymbols.joined(separator: “\n”)
20. 
    ίʔϧελοΫͷऔಘ let callstack = exception.callStackSymbols.joined(separator: “\n”) // ΋͘͠͸ let callstack = Thread.callStackSymbols.joined(separator: “\n”) 0 broadcast-upload 0x000000010502eaf8 broadcast-upload + 223992 1 libsystem_platform.dylib 0x00000001e3b9c29c 987D48D5-3CAA-34D7-9141-C0BD6E2351E8 + 21148 2 broadcast-upload 0x0000000105106224 broadcast-upload + 1106468 3 broadcast-upload 0x0000000105103604 broadcast-upload + 1095172 4 Foundation 0x00000001991eb438 __NSFireTimer + 104 5 CoreFoundation 0x0000000197d911d4 338F58B1-9B75-38A0-B908-E2574AB1D39A + 672212 6 CoreFoundation 0x0000000197d90dd0 338F58B1-9B75-38A0-B908-E2574AB1D39A + 671184 7 CoreFoundation 0x0000000197d90220 338F58B1-9B75-38A0-B908-E2574AB1D39A + 668192 8 CoreFoundation 0x0000000197d89f8c 338F58B1-9B75-38A0-B908-E2574AB1D39A + 642956 … ͜ͷίʔϧελοΫͷ৘ใΛղੳͯ͠ɺϓϩάϥϜͷ࣮ߦߦ਺ͳͲΛಛఆ͍ͨ͠
21. 
    E4:.
    ϑΝΠϧΛͱͬͯ͘Δ
22. 
    "QQ
    4UPSF
    $POOFDU
    ͔Β
    E4:.
    ϑΝΠϧΛͱͬͯ͘Δ ͜ͷ
    E4:.
    ϑΝΠϧ͸ͦΕͧΕ͕֤λʔήοτϥΠϒϥϦʹରԠ͍ͯ͠Δ App Store Connect
23. 
    E4:.
    ϑΝΠϧ͕ͲͷλʔήοτϥΠϒϥϦʹରԠ͍ͯ͠Δ͔ௐ΂Δ Mirrativ tech blog - ʲiOSʳUnity Framework ͱΫϥογϡղੳͷऔΓ૊Έ files=`ls "$1"` for uuid in ${files[@]}; do module=`ls "$1/${uuid}/Contents/Resources/DWARF/"` echo "${uuid:0:8}: ${module}" done fi OE@ETZNTI
24. Mirrativ tech blog - ʲiOSʳUnity Framework ͱΫϥογϡղੳͷऔΓ૊Έ $ ./find_dsym.sh /Users/naruki.chigira/Desktop/appDsyms 2d4dd1c9: widget 310ef0bf: broadcast-upload 6d82e920: WebRTC 7cc5d65f: UnityFramework b11f4f4f: Shared de357eed: mirrativ … ֤
    λʔήοτϥΠϒϥϦ
    ʹରԠ͢Δ
    E4:.
    ͕؆୯ʹ୳ͤΔΑ͏ʹͳͬͨ 
    E4:.
    ϑΝΠϧ͕ͲͷλʔήοτϥΠϒϥϦʹରԠ͍ͯ͠Δ͔ௐ΂Δ
25. 
    BUPT
    ίϚϯυͰελοΫτϨʔεΛղੳ͢Δ
26. 
    BUPT
    ͷجຊతͳ࢖͍ํΛ஌Δ $ man atos atos(1) BSD General Commands Manual atos(1) NAME atos -- convert numeric addresses to symbols of binary images or processes SYNOPSIS atos [-o <binary-image-file>] [-p <pid> | <partial-executable-name>] [-arch architecture] [-l <load-address>] [-s <slide>] [-printHeader] [-fullPath] [-f <address- input-file>] [<address> …] … NBO
    ίϚϯυͰ֬ೝͯ͠ΈΔ atos [-o <binary-image-file>] [-arch architecture] [-l <load-address>] [<address> …] ࠓճͷΫϥογϡղੳͷࡍʹඞཁͳύϥϝʔλ
27. 
    BUPT
    ʹ౉͢ύϥϝʔλ
    
    E4:.
    ϑΝΠϧ atos [-o <binary-image-file>] [-arch architecture] [-l <load-address>] [<address> …] Ϋϥογϡղੳͷࡍʹඞཁͳύϥϝʔλ E4:.
    ϑΝΠϧͷύε த਎ 0 broadcast-upload 0x000000010502eaf8 broadcast-upload + 223992 ./appDsyms/310ef0bf-51fa-3535-8078-3fa06c470774.dSYM/Contents/Resources/DWARF/broadcast-upload
28. 
    BUPT
    ʹ౉͢ύϥϝʔλ
    
    ΞʔΩςΫνϟ atos [-o <binary-image-file>] [-arch architecture] [-l <load-address>] [<address> …] Ϋϥογϡղੳͷࡍʹඞཁͳύϥϝʔλ Ϋϥογϡ͕ൃੜͨ͠୺຤ͷ$16ΞʔΩςΫνϟ BSN
    BSNF
29. ɾΞʔΩςΫνϟΛऔಘ͢ΔͨΊͷ
    4XJGU
    ͷίʔυ IUUQTHJTUHJUIVCDPNOBSVKQOBEEEDBBCFCEFC fi MFEFWJDFTXJGU ɾJ1IPOF 
    ͷΑ͏ͳϞσϧ໊͔ΒΞʔΩςΫνϟΛऔಘ͢ΔͨΊͷ
    TRM
    IUUQTHJTUHJUIVCDPNOBSVKQOGGFCEEDBDEBD fi MFEFWJDFTRM 
    BUPT
    ʹ౉͢ύϥϝʔλ
    
    ΞʔΩςΫνϟ
30. 
    BUPT
    ʹ౉͢ύϥϝʔλ
    
    ελοΫτϨʔεͷΞυϨε atos [-o <binary-image-file>] [-arch architecture] [-l <load-address>] [<address> …] Ϋϥογϡղੳͷࡍʹඞཁͳύϥϝʔλ -l 0x104ff8000 0x10502eaf8
31. atos [-o <binary-image-file>] [-arch architecture] [-l <load-address>] [<address> …] Ϋϥογϡղੳͷࡍʹඞཁͳύϥϝʔλ -l 0x104ff8000 0x10502eaf8 0 broadcast-upload 0x000000010502eaf8 broadcast-upload + 223992 " # https://stackover fl ow.com/questions/11747802/symbolicating-stack-trace-without-crash " "
    
    # 
    BUPT
    ʹ౉͢ύϥϝʔλ
    
    ελοΫτϨʔεͷΞυϨε
32. atos [-o <binary-image-file>] [-arch architecture] [-l <load-address>] [<address> …] Ϋϥογϡղੳͷࡍʹඞཁͳύϥϝʔλ -l 0x104ff8000 0x10502eaf8 0 broadcast-upload 0x000000010502eaf8 broadcast-upload + 223992 " # https://stackover fl ow.com/questions/11747802/symbolicating-stack-trace-without-crash "
    
    # 
    BUPT
    ʹ౉͢ύϥϝʔλ
    
    ελοΫτϨʔεͷΞυϨε "0x" + String(UInt64("10502eaf8", radix: 16)! - UInt64("223992", radix: 10)!, radix: 16)
33. $ atos -o {path_to_dsym} -arch arm64e -l 0x104ff8000 0x10502eaf8 0 broadcast-upload 0x000000010502eaf8 broadcast-upload + 223992 https://stackover fl ow.com/questions/11747802/symbolicating-stack-trace-without-crash 
    ελοΫτϨʔεΛղੳ͢Δ closure #1 in variable initialization expression of static AnalyticsManager.recieveSignal (in broadcast-upload) (AnalyticsManager+Extension.swift:22) 🎉
34. $ atos -o {path_to_dsym} -arch arm64e -l 0x104ff8000 0x105106224 0x105103604 2 broadcast-upload 0x0000000105106224 broadcast-upload + 1106468 3 broadcast-upload 0x0000000105103604 broadcast-upload + 1095172 https://stackover fl ow.com/questions/11747802/symbolicating-stack-trace-without-crash 
    ελοΫτϨʔεΛղੳ͢Δ specialized Stream.on(timer:) (in broadcast-upload) (Stream.swift:164) @objc Stream.on(timer:) (in broadcast-upload) (<compiler-generated>:0) 🎉
35. $ atos -o {path_to_dsym} -arch arm64e -l 0x104ff8000 0x10502eaf8 
    ࣮༻্ͷ՝୊ ɾE4:.
    ϑΝΠϧͷࢦఆ΍ΞυϨεͷܭࢉ͕खؒ
    ɾ࣮ߦʹ͕͔͔࣌ؒΔ
    ɹɾUJNF
    ίϚϯυͰܭଌ͢Δͱ
    
    ()[
    .BD#PPL
    1SP
    Ͱ
    
    <T>
    ˠ
    ख࡞ۀͰ͸ղੳͰ͖ͳ͍͠ɺେྔͷϩάΛղੳ͢Δʹ͸Ωϟογϡ తͳ࢓૊Έ͕ඞཁ
    
36. 
    ղੳΛࣗಈԽͯ͠ूܭ͢Δ
37. 
    ղੳ༻ΞϓϦʹΑΔࣗಈԽʢ݅෼ͷΫϥογϡղੳʣ
38. 
    ूܭ݁Ռͷྫ ൃੜճ਺ ղੳࡁΈͷελοΫτϨʔε ͜͜·Ͱ͘Ε͹֤Ϋϥογϡͷ಺༰ͱӨڹͷେ͖͕͞Ұ໨Ͱ෼͔Δ
39. 
    ΫϥογϡΛमਖ਼͢Δ
40. 
    Ϋϥογϡͷमਖ਼ ৄࡉ͸লུʜ
    ɾ഑৴தʹ
    4JSJ
    Λىಈ͢ΔͱɺԻ੠σʔλͷྲྀΕ͕ෆنଇʹͳΔ
    ɾ഑৴தʹଞͷ௨࿩ΞϓϦͰ௨࿩Λ͢Δͱɺ૝ఆ֎ͷνϟωϧ਺Λ࣋ͬ ͨԻ੠σʔλ͕ྲྀΕͯ͘Δ
    ͳͲ
41. 
    Ϋϥογϡमਖ਼ޙͷΫϥογϡ཰ͷվળ मਖ਼൛ͷϦϦʔε೔ Ϋϥογϡͷൃੜ਺Λ
    ໿ݮΒ͢͜ͱ͕Ͱ͖ͨʂ
42. ·ͱΊ ෭࣍తʹಘΒΕͨ΋ͷ
    ɾΫϥογϡͷৄࡉͱ಺༁͕؆୯ʹ෼͔ΔΑ͏ʹͳͬͨ͜ͱͰɺ
    ɹमਖ਼Λ͢ΔࡍͷϝϦοτ΍Өڹྗͷࣄલͷઆ໌͕͠΍͘͢ͳͬͨ
    ɾܦݧ͕ͳ͍ͱཧղͰ͖ͳ͔ͬͨྖҬͷղ૾౓্͕͕Γɺ
    ɹଐਓੑΛݮΒ͢͜ͱʹܨ͕ͬͨ ɾελοΫτϨʔεͱ
    E4:.
    ͔ΒΫϥογϡͷৄࡉ͕ղੳͰ͖ͯɺ
    ɹΫϥογϡͷղফʹܨ͕ͬͨ
43. ͓·͚ DBMM4UBDL4ZNCPMT
    ͔ΒऔಘͰ͖ΔจࣈྻΛύʔε͢ΔͨΊͷϥΠϒϥϦ IUUQTHJUIVCDPNOBSVKQO$BMM4UBDL4ZNCPMT
44. ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ