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Recommended way to handle callbacks that return Swift.Result #26

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SomeRandomGuyOnTheInternet opened this issue Jul 14, 2020 · 1 comment
Closed

Recommended way to handle callbacks that return Swift.Result #26

SomeRandomGuyOnTheInternet opened this issue Jul 14, 2020 · 1 comment

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@SomeRandomGuyOnTheInternet
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I'm not sure if this is where I should bring this up but it'll do for now, I guess. Anyway, is there a recommended way to handle callbacks that return enums like Swift.Result?
@belozierov
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@SomeRandomGuyOnTheInternet Hi, could you clarify with an example what you mean so I know exactly what case you're about.

@ladeiko ladeiko mentioned this issue Oct 4, 2020
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ladeiko added a commit to ladeiko/SwiftCoroutine that referenced this issue Aug 5, 2022
@ladeiko
SwiftCoroutineDemo(39856,0x11266e600) malloc: enabling scribbling to …
f36ac1b 
…detect mods to free blocks

SwiftCoroutineDemo(39856,0x11266e600) malloc: nano zone abandoned due to inability to preallocate reserved vm space.
DispatchQueue::scheduleTask() <OS_dispatch_queue_main: com.apple.main-thread>
SharedCoroutineDispatcher::getFreeQueue(SwiftCoroutine.SharedCoroutineDispatcher)
CoroutineContext::init(stackSize=196608, guardPage=true, SwiftCoroutine.CoroutineContext) returnEnv = 0x000060f0000042d0 stack = 0x000000010effb000
SharedCoroutineQueue::start(SwiftCoroutine.SharedCoroutineQueue)
CoroutineContext::start(SwiftCoroutine.CoroutineContext) enter
CoroutineContext::stackTop(SwiftCoroutine.CoroutineContext) 0x000000010f02b000
CoroutineContext::start(Optional(0x00006060000b8400)) block enter
==39856==WARNING: ASan is ignoring requested __asan_handle_no_return: stack type: default top: 0x7ff7b7045000; bottom 0x00010f028000; size: 0x7ff6a801d000 (140697357373440)
False positive error reports may follow
For details see google/sanitizers#189
CoroutineContext::start(SwiftCoroutine.CoroutineContext) leave
DispatchQueue::scheduleTask() <OS_dispatch_queue_main: com.apple.main-thread>
SharedCoroutineDispatcher::getFreeQueue(SwiftCoroutine.SharedCoroutineDispatcher)
SharedCoroutineQueue::start(SwiftCoroutine.SharedCoroutineQueue)
CoroutineContext::stackTop(SwiftCoroutine.CoroutineContext) 0x000000010f02b000
=================================================================
==39856==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x00010f029ec1 at pc 0x00010949d77d bp 0x7ff7b7040e90 sp 0x7ff7b7040650
READ of size 4416 at 0x00010f029ec1 thread T0
    #0 0x10949d77c in wrap_memcpy+0x16c (libclang_rt.asan_iossim_dynamic.dylib:x86_64+0x1977c)
    belozierov#1 0x109ef7f83 in SharedCoroutine.saveStack() SharedCoroutine.swift:79
    belozierov#2 0x109eff514 in SharedCoroutineQueue.start(dispatcher:scheduler:task:) SharedCoroutineQueue.swift:39
    belozierov#3 0x109efc229 in closure belozierov#1 in SharedCoroutineDispatcher.execute(on:task:) SharedCoroutineDispatcher.swift:27
    belozierov#4 0x109ee7ed9 in OS_dispatch_queue.scheduleTask(_:) CoroutineScheduler+DispatchQueue.swift:16
    belozierov#5 0x109ee88ad in protocol witness for CoroutineScheduler.scheduleTask(_:) in conformance OS_dispatch_queue <compiler-generated>
    belozierov#6 0x109efbf48 in SharedCoroutineDispatcher.execute(on:task:) SharedCoroutineDispatcher.swift:26
    belozierov#7 0x109ee3616 in CoroutineScheduler._startCoroutine(_:) CoroutineScheduler.swift:51
    belozierov#8 0x109ee3c78 in CoroutineScheduler.startCoroutine(in:task:) CoroutineScheduler.swift:69
    belozierov#9 0x108ebe2ed in AppDelegate.test() AppDelegate.swift:43
    belozierov#10 0x108ebdd77 in AppDelegate.application(_:didFinishLaunchingWithOptions:) AppDelegate.swift:18
    belozierov#11 0x108ebe4b7 in @objc AppDelegate.application(_:didFinishLaunchingWithOptions:) <compiler-generated>
    belozierov#12 0x7fff2509a592 in -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:]+0xd5 (UIKitCore:x86_64+0xcd7592)
    belozierov#13 0x7fff2509c283 in -[UIApplication _callInitializationDelegatesWithActions:forCanvas:payload:fromOriginatingProcess:]+0x101f (UIKitCore:x86_64+0xcd9283)
    belozierov#14 0x7fff250a1c23 in -[UIApplication _runWithMainScene:transitionContext:completion:]+0x4a5 (UIKitCore:x86_64+0xcdec23)
    belozierov#15 0x7fff246124a2 in -[_UISceneLifecycleMultiplexer completeApplicationLaunchWithFBSScene:transitionContext:]+0xb2 (UIKitCore:x86_64+0x24f4a2)
    belozierov#16 0x7fff2509e2ac in -[UIApplication _compellApplicationLaunchToCompleteUnconditionally]+0x3a (UIKitCore:x86_64+0xcdb2ac)
    belozierov#17 0x7fff2509e64b in -[UIApplication _run]+0x391 (UIKitCore:x86_64+0xcdb64b)
    belozierov#18 0x7fff250a32b4 in UIApplicationMain+0x64 (UIKitCore:x86_64+0xce02b4)
    belozierov#19 0x7fff59d55cc1 in UIApplicationMain(_:_:_:_:)+0x61 (libswiftUIKit.dylib:x86_64+0x21cc1)
    belozierov#20 0x108ebf357 in static UIApplicationDelegate.main() <compiler-generated>
    belozierov#21 0x108ebf2a0 in static AppDelegate.$main() AppDelegate.swift:11
    belozierov#22 0x108ebfc77 in main <compiler-generated>
    belozierov#23 0x1090f8f20 in start_sim+0x9 (dyld_sim:x86_64+0x1f20)
    belozierov#24 0x1125f352d  (<unknown module>)

0x00010f029ec1 is located 192193 bytes inside of 200704-byte region [0x00010effb000,0x00010f02c000)
allocated by thread T0 here:
    #0 0x1094c7bb3 in wrap_posix_memalign+0xb3 (libclang_rt.asan_iossim_dynamic.dylib:x86_64+0x43bb3)
    belozierov#1 0x7fff30c9e62c in swift_slowAlloc+0x4c (libswiftCore.dylib:x86_64+0x30762c)
    belozierov#2 0x109ede243 in CoroutineContext.init(stackSize:guardPage:) CoroutineContext.swift:32
    belozierov#3 0x109eddc1f in CoroutineContext.__allocating_init(stackSize:guardPage:) CoroutineContext.swift
    belozierov#4 0x109efe985 in SharedCoroutineQueue.init(stackSize:) SharedCoroutineQueue.swift:28
    belozierov#5 0x109efe5c3 in SharedCoroutineQueue.__allocating_init(stackSize:) SharedCoroutineQueue.swift
    belozierov#6 0x109efcb3d in SharedCoroutineDispatcher.getFreeQueue() SharedCoroutineDispatcher.swift:38
    belozierov#7 0x109efc20d in closure belozierov#1 in SharedCoroutineDispatcher.execute(on:task:) SharedCoroutineDispatcher.swift:27
    belozierov#8 0x109ee7ed9 in OS_dispatch_queue.scheduleTask(_:) CoroutineScheduler+DispatchQueue.swift:16
    belozierov#9 0x109ee88ad in protocol witness for CoroutineScheduler.scheduleTask(_:) in conformance OS_dispatch_queue <compiler-generated>
    belozierov#10 0x109efbf48 in SharedCoroutineDispatcher.execute(on:task:) SharedCoroutineDispatcher.swift:26
    belozierov#11 0x109ee3616 in CoroutineScheduler._startCoroutine(_:) CoroutineScheduler.swift:51
    belozierov#12 0x109ee3c78 in CoroutineScheduler.startCoroutine(in:task:) CoroutineScheduler.swift:69
    belozierov#13 0x108ebe2ed in AppDelegate.test() AppDelegate.swift:43
    belozierov#14 0x108ebdd77 in AppDelegate.application(_:didFinishLaunchingWithOptions:) AppDelegate.swift:18
    belozierov#15 0x108ebe4b7 in @objc AppDelegate.application(_:didFinishLaunchingWithOptions:) <compiler-generated>
    belozierov#16 0x7fff2509a592 in -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:]+0xd5 (UIKitCore:x86_64+0xcd7592)
    belozierov#17 0x7fff2509c283 in -[UIApplication _callInitializationDelegatesWithActions:forCanvas:payload:fromOriginatingProcess:]+0x101f (UIKitCore:x86_64+0xcd9283)
    belozierov#18 0x7fff250a1c23 in -[UIApplication _runWithMainScene:transitionContext:completion:]+0x4a5 (UIKitCore:x86_64+0xcdec23)
    belozierov#19 0x7fff246124a2 in -[_UISceneLifecycleMultiplexer completeApplicationLaunchWithFBSScene:transitionContext:]+0xb2 (UIKitCore:x86_64+0x24f4a2)
    belozierov#20 0x7fff2509e2ac in -[UIApplication _compellApplicationLaunchToCompleteUnconditionally]+0x3a (UIKitCore:x86_64+0xcdb2ac)
    belozierov#21 0x7fff2509e64b in -[UIApplication _run]+0x391 (UIKitCore:x86_64+0xcdb64b)
    belozierov#22 0x7fff250a32b4 in UIApplicationMain+0x64 (UIKitCore:x86_64+0xce02b4)
    belozierov#23 0x7fff59d55cc1 in UIApplicationMain(_:_:_:_:)+0x61 (libswiftUIKit.dylib:x86_64+0x21cc1)
    belozierov#24 0x108ebf357 in static UIApplicationDelegate.main() <compiler-generated>
    belozierov#25 0x108ebf2a0 in static AppDelegate.$main() AppDelegate.swift:11
    belozierov#26 0x108ebfc77 in main <compiler-generated>
    belozierov#27 0x1090f8f20 in start_sim+0x9 (dyld_sim:x86_64+0x1f20)
    belozierov#28 0x1125f352d  (<unknown module>)

SUMMARY: AddressSanitizer: stack-buffer-overflow (libclang_rt.asan_iossim_dynamic.dylib:x86_64+0x1977c) in wrap_memcpy+0x16c
Shadow bytes around the buggy address:
  0x0001344ad380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0001344ad390: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0001344ad3a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0001344ad3b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0001344ad3c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0001344ad3d0: 00 00 00 00 f1 f1 f1 f1[01]f3 f3 f3 00 00 00 00
  0x0001344ad3e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0001344ad3f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0001344ad400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0001344ad410: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0001344ad420: 00 00 00 00 00 00 00 00 00 00 00 00 ca ca ca ca
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
==39856==ABORTING
AddressSanitizer report breakpoint hit. Use 'thread info -s' to get extended information about the report.
(lldb)
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@belozierov @SomeRandomGuyOnTheInternet