IOS下捕获异常并生成异常堆栈日志

最新推荐文章于 2022-07-01 09:06:26 发布

原创最新推荐文章于 2022-07-01 09:06:26 发布 · 1.6k 阅读

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#ios #catch crash stack #unix #异常

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本文介绍了一种在iOS应用中实现全面的Crash日志收集和记录的方法。通过使用NSSetUncaughtExceptionHandler和信号处理机制，可以捕捉并记录应用运行过程中发生的各种异常情况，最后将这些信息写入到CrashReport.txt文件中。

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在appDidFinishLaunching函数中添加：

NSSetUncaughtExceptionHandler(&UncaughtExceptionHandler);
[self addSigaction];

添加函数：

void UncaughtExceptionHandler(NSException *exception)
{
    NSArray *storeFilePath = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *doucumentsDirectiory = [storeFilePath objectAtIndex:0];
    
    //crashReport path
    NSString *carshReportPath = [doucumentsDirectiory stringByAppendingPathComponent:@"CrashReport.txt"];
    NSArray *callStack = [exception callStackSymbols];  //exception callStack
    NSString *name = [exception name];                  //exception name
    NSString *reason = [exception reason];              //exception reason
    NSString *strUrl = [NSString stringWithFormat:@"Exception Name:\n%@\nException Reason:\n%@\nCallStackSymbols:\n%@",name,reason,[callStack componentsJoinedByString:@"\n"]];
    //write
    if([strUrl rangeOfString:@"[ZIosEnv performSelector:]"].location == NSNotFound)
    {
        [strUrl writeToFile:carshReportPath atomically:YES encoding:NSUTF8StringEncoding error:nil];
    }
}

- (void)addSigaction
{
    //对于用NSSetUncaughtExceptionHandler不能捕获的异常利用unix标准的signal机制处理
    struct sigaction mySigAction;
    mySigAction.sa_sigaction = stacktrace;
    mySigAction.sa_flags = SA_SIGINFO;
    
    sigemptyset(&mySigAction.sa_mask);
    sigaction(SIGQUIT, &mySigAction, NULL);
    sigaction(SIGILL , &mySigAction, NULL);
    sigaction(SIGTRAP, &mySigAction, NULL);
    sigaction(SIGABRT, &mySigAction, NULL);
    sigaction(SIGEMT , &mySigAction, NULL);
    sigaction(SIGFPE , &mySigAction, NULL);
    sigaction(SIGBUS , &mySigAction, NULL);
    sigaction(SIGSEGV, &mySigAction, NULL);
    sigaction(SIGSYS , &mySigAction, NULL);
    sigaction(SIGPIPE, &mySigAction, NULL);
    sigaction(SIGALRM, &mySigAction, NULL);
    sigaction(SIGXCPU, &mySigAction, NULL);
    sigaction(SIGXFSZ, &mySigAction, NULL);
}