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];
// 现在就可以上报信息到服务器
}
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];
// 现在就可以上报信息到服务器
}
@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