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Add exception and signal handling for iOS
First half of #161
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| // | ||
| // DetoxCrashHandler.m | ||
| // Detox | ||
| // | ||
| // Created by Leo Natan (Wix) on 12/5/17. | ||
| // Copyright © 2017 Wix. All rights reserved. | ||
| // | ||
|
|
||
| #include <fishhook.h> | ||
| @import Darwin; | ||
| @import Foundation; | ||
| #import "DetoxManager.h" | ||
| #import <Detox/Detox-Swift.h> | ||
|
|
||
| static void __DTXHandleCrash(NSException* exception, NSNumber* signal) | ||
| { | ||
| NSNumber* threadNumber = [[NSThread currentThread] valueForKeyPath:@"private.seqNum"]; | ||
| NSString* queueName = @""; | ||
| #pragma clang diagnostic push | ||
| #pragma clang diagnostic ignored "-Wdeprecated-declarations" | ||
| dispatch_queue_t currentQueue = dispatch_get_current_queue(); | ||
| #pragma clang diagnostic pop | ||
| if(currentQueue) | ||
| { | ||
| queueName = [NSString stringWithUTF8String:dispatch_queue_get_label(currentQueue)]; | ||
| } | ||
|
|
||
| NSMutableDictionary* report = [@{@"threadNumber": threadNumber, @"queueName": queueName} mutableCopy]; | ||
| if(exception) | ||
| { | ||
| report[@"exceptionDetails"] = exception.debugDescription; | ||
| } | ||
|
|
||
| if(signal) | ||
| { | ||
| report[@"exceptionDetails"] = [NSString stringWithFormat:@"Signal %@ was raised\n%@", signal, [NSThread callStackSymbols]]; | ||
| } | ||
|
|
||
| [DetoxManager.sharedManager notifyOnCrashWithDetails:report]; | ||
|
|
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| [NSThread sleepForTimeInterval:5]; | ||
| } | ||
|
|
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| static void (*__orig_NSSetUncaughtExceptionHandler)(NSUncaughtExceptionHandler * _Nullable); | ||
| static void __dtx_NSSetUncaughtExceptionHandler(NSUncaughtExceptionHandler * _Nullable handler) | ||
| {} | ||
|
|
||
| static void __DTXUncaughtExceptionHandler(NSException* exception) | ||
| { | ||
| __DTXHandleCrash(exception, nil); | ||
| } | ||
|
|
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| static NSSet<NSNumber*>* __supportedSignals; | ||
|
|
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| static int (*__orig_sigaction)(int, const struct sigaction * __restrict, struct sigaction * __restrict); | ||
| static int __dtx_sigaction(int signal, const struct sigaction * __restrict newaction, struct sigaction * __restrict oldaction) | ||
| { | ||
| if([__supportedSignals containsObject:@(signal)] == NO) | ||
| { | ||
| return __orig_sigaction(signal, newaction, oldaction); | ||
| } | ||
|
|
||
| return 0; | ||
| } | ||
|
|
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| static void __DTXHandleSignal(int signal) | ||
| { | ||
| __DTXHandleCrash(nil, @(signal)); | ||
|
|
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| exit(1); | ||
| } | ||
|
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| __attribute__((constructor)) | ||
| static void __DTXInstallCrashHandlers() | ||
| { | ||
| __orig_NSSetUncaughtExceptionHandler = dlsym(RTLD_DEFAULT, "NSSetUncaughtExceptionHandler"); | ||
|
|
||
| { | ||
| struct rebinding rebindings[] = { | ||
| {"NSSetUncaughtExceptionHandler", __dtx_NSSetUncaughtExceptionHandler, NULL} | ||
| }; | ||
|
|
||
| rebind_symbols(rebindings, 1); | ||
| } | ||
|
|
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| __orig_NSSetUncaughtExceptionHandler(__DTXUncaughtExceptionHandler); | ||
|
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| __supportedSignals = [NSSet setWithArray:@[@(SIGQUIT), @(SIGILL), @(SIGTRAP), @(SIGABRT), @(SIGFPE), @(SIGBUS), @(SIGSEGV), @(SIGSYS)]]; | ||
|
|
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| __orig_sigaction = dlsym(RTLD_DEFAULT, "sigaction"); | ||
|
|
||
| { | ||
| struct rebinding rebindings[] = { | ||
| {"sigaction", __dtx_sigaction, NULL} | ||
| }; | ||
|
|
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| rebind_symbols(rebindings, 1); | ||
| } | ||
|
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| struct sigaction signalAction; | ||
| memset(&signalAction, 0, sizeof(signalAction)); | ||
| sigemptyset(&signalAction.sa_mask); | ||
| signalAction.sa_handler = &__DTXHandleSignal; | ||
|
|
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| [__supportedSignals enumerateObjectsUsingBlock:^(NSNumber * _Nonnull obj, BOOL * _Nonnull stop) { | ||
| int signum = obj.intValue; | ||
|
|
||
| __orig_sigaction(signum, &signalAction, NULL); | ||
| }]; | ||
| } |
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