IOS Crash捕获

IOS Crash ,就两种情况：一种是异常，另一种是中断［信号量］。

#include <libkern/OSAtomic.h>

#include <execinfo.h>

// 系统信号截获处理方法

void signalHandler(int signal);

// 异常截获处理方法

void exceptionHandler(NSException *exception);

const int32_t _uncaughtExceptionMaximum = 10;

void signalHandler(int signal)

{

volatile int32_t _uncaughtExceptionCount
= 0;

int32_t exceptionCount = OSAtomicIncrement32(&_uncaughtExceptionCount);

if (exceptionCount > _uncaughtExceptionMaximum) // 如果太多不用处理

{

return;

}

// 获取信息

NSMutableDictionary *userInfo =

[NSMutableDictionary dictionaryWithObject:[NSNumber numberWithInt:signal] forKey:UncaughtExceptionHandlerSignalKey];

NSArray *callStack = [ExceptionHandler backtrace];

[userInfo setObject:callStack forKey:SingalExceptionHandlerAddressesKey];

// 现在就可以保存信息到本地［］

}

void exceptionHandler(NSException *exception)

{

volatile int32_t _uncaughtExceptionCount
= 0;

int32_t exceptionCount = OSAtomicIncrement32(&_uncaughtExceptionCount);

if (exceptionCount > _uncaughtExceptionMaximum) // 如果太多不用处理

{

return;

}

NSArray *callStack = [ExceptionHandler backtrace];

NSMutableDictionary *userInfo =[NSMutableDictionary dictionaryWithDictionary:[exception userInfo]];

[userInfo setObject:callStack forKey:ExceptionHandlerAddressesKey];

// 现在就可以保存信息到本地［］

}

@implementation ExceptionHandler

//获取调用堆栈

+ (NSArray *)backtrace

{

void* callstack[128];

int frames = backtrace(callstack, 128);

char **strs = backtrace_symbols(callstack,frames);

NSMutableArray *backtrace = [NSMutableArray arrayWithCapacity:frames];

for (int i=0;i<frames;i++)

{

[backtrace addObject:[NSString stringWithUTF8String:strs[i]]];

}

free(strs);

return backtrace;

}

// 注册崩溃拦截

-(void)installExceptionHandler

{

NSSetUncaughtExceptionHandler(&exceptionHandler);

signal(SIGHUP, signalHandler);

signal(SIGINT, signalHandler);

signal(SIGQUIT, signalHandler);

signal(SIGABRT, signalHandler);

signal(SIGILL, signalHandler);

signal(SIGSEGV, signalHandler);

signal(SIGFPE, signalHandler);

signal(SIGBUS, signalHandler);

signal(SIGPIPE, signalHandler);

}

@end