[英]Debug EXC_BAD_ACCESS on device on Xcode 6
當我在iPhone上而不是模擬器上運行時,我遇到了這個可怕的錯誤。 我已經嘗試過運行用於僵屍,分配和突然終止的工具,但后者將無法在設備上運行。 這些工具突出強調了所有與眾不同的地方。 也許我用錯了它們,但看起來很簡單。
基本上,當我向應用程序中添加了第二組數據數組時,會出現此錯誤,並且在模擬器上,它使用約70MB,而沒有第二組數據時,則使用20至40MB。 確實看起來我的內存不足(iPhone 4s),但是從我閱讀的內容來看,這不太可能。 從分配工具來看,最后發生的事情是VM分配,但我不知道它是否成功。 樂器什么也沒說。
是否有人可以使用Xcode 6跟蹤此類問題並在設備上運行? (我的應用程序正在使用ARC。)我應該知道調試器控制台命令嗎?
謝謝
PS:我還啟用了Xcode中的僵屍對象,但是也沒有有關該錯誤的線索。
這是要求我發布的代碼:
//***************************************************/
// Process the constellation lines catalog for OpenGL
//***************************************************/
// Must create a set of polygon objects to be drawn separately
// Each with a vertex and index buffer
NSMutableString *constellationName = [[NSMutableString alloc] init];
NSMutableArray *constellationsTemp = [[NSMutableArray alloc] init];
// Do a points and lines scatter plot of the catalog data
int totalVertices = 0;
for (i=0; i<constellationLinesCatalogData.count;) {
constellationName = [[constellationLinesCatalogData objectAtIndex:i] objectAtIndex:CON_INDEX];
NSMutableArray *constellation = [[NSMutableArray alloc] init];
while ((i<constellationLinesCatalogData.count) && [[[constellationLinesCatalogData objectAtIndex:i] objectAtIndex:CON_INDEX] isEqualToString:constellationName]) {
NSMutableArray *constellationVerticesArray = [[NSMutableArray alloc] init];
NSMutableArray *constellationIndicesArray = [[NSMutableArray alloc] init];
while (![[[constellationLinesCatalogData objectAtIndex:i] objectAtIndex:STAR_INDEX] isEqualToString:@""]) {
cos_ra = cosf(GLKMathDegreesToRadians(
15*(
[[[constellationLinesCatalogData objectAtIndex:i] objectAtIndex:RA_INDEX] floatValue]
)
));
sin_ra = sinf(GLKMathDegreesToRadians(
15*(
[[[constellationLinesCatalogData objectAtIndex:i] objectAtIndex:RA_INDEX] floatValue]
)
));
cos_dec = cosf(GLKMathDegreesToRadians(
[[[constellationLinesCatalogData objectAtIndex:i] objectAtIndex:DE_INDEX] floatValue]
));
sin_dec = sinf(GLKMathDegreesToRadians(
[[[constellationLinesCatalogData objectAtIndex:i] objectAtIndex:DE_INDEX] floatValue]
));
NSArray *Position = [[NSArray alloc] initWithObjects:
[NSNumber numberWithFloat:cos_dec*cos_ra], // X
[NSNumber numberWithFloat:cos_dec*sin_ra], // Y
[NSNumber numberWithFloat:sin_dec], // Z
[NSNumber numberWithFloat:1.0],
nil];
NSArray *Color = [[NSArray alloc] initWithObjects:
[NSNumber numberWithFloat:0.5],
[NSNumber numberWithFloat:0.5],
[NSNumber numberWithFloat:0.5],
[NSNumber numberWithFloat:1.0],
nil];
NSArray *TexCoord0 = [[NSArray alloc] initWithObjects:
[NSNumber numberWithFloat:1.0],
[NSNumber numberWithFloat:1.0],
nil];
NSArray *TexCoord1 = [[NSArray alloc] initWithObjects:
[NSNumber numberWithFloat:1.0],
[NSNumber numberWithFloat:1.0],
nil];
NSArray *Pointsize = [[NSArray alloc] initWithObjects:
[NSNumber numberWithFloat:DEFAULT_POINT_SIZE],
nil];
NSArray *constellationVertex = [[NSArray alloc] initWithObjects:
Position,
Color,
TexCoord0,
TexCoord1,
Pointsize,
nil];
[constellationVerticesArray addObject:constellationVertex];
[constellationIndicesArray addObject:[[NSNumber alloc] initWithUnsignedInteger:totalVertices]];
totalVertices++;
i++;
}
NSArray *figure = [[NSArray alloc] initWithObjects:
[[constellationLinesCatalogData objectAtIndex:i] objectAtIndex:CON_INDEX],
constellationVerticesArray,
constellationIndicesArray,
nil];
[constellation addObject:figure];
i++;
}
[constellationsTemp addObject:constellation];
}
NSArray *constellations = [[NSArray alloc] initWithArray:constellationsTemp copyItems:YES];
NSLog(@"constellations.count = %lu", (unsigned long)constellations.count);
NSLog(@"totalVertices = %d", totalVertices);
// Setup constellation buffers
Vertex constellationVertices[totalVertices];
GLuint constellationIndices[totalVertices*2];
好吧,這個問題仍然存在。 除了EXC_BAD_ACCESS代碼1,沒有其他信息可以跟蹤它。堆棧跟蹤只是將設置方法顯示為最后一次調用。 我以為問題出在我的視圖控制器中,但是經過大量的試驗和錯誤,它認為它必須是這樣,但是也許存在一個我看不到的細微問題。 這是我的視圖控制器代碼,該代碼調用立即崩潰的設置方法-您可能只需要查看最后的OpenGL安裝程序即可:
#import "GBStarFieldViewController.h"
#import "GBStarFieldView.h"
#define MOTION_UPDATE_INTERVAL (1/30) // seconds
@interface GBStarFieldViewController ()
@end
@implementation GBStarFieldViewController {
int i;
CLLocationManager *locationManager;
CMMotionManager *motionManager;
GBStarFieldView *starFieldView;
}
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
NSLog(@"GBStarFieldViewController viewDidLoad invoked");
/****************************/
// Register for notifications
/****************************/
NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
[center addObserver:self
selector:@selector(tapDetected:)
name:@"TapDetected"
object:nil];
[center addObserver:self
selector:@selector(pinchDetected:)
name:@"PinchDetected"
object:nil];
[center addObserver:self
selector:@selector(oneTouchPanDetected:)
name:@"OneTouchPanDetected"
object:nil];
[center addObserver:self
selector:@selector(twoTouchPanDetected:)
name:@"TwoTouchPanDetected"
object:nil];
/****************************************************/
// Setup location manager
/****************************************************/
if ([CLLocationManager locationServicesEnabled] && [CLLocationManager headingAvailable]) {
locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
locationManager.headingFilter = kCLHeadingFilterNone;
locationManager.distanceFilter = kCLHeadingFilterNone;
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[locationManager startUpdatingLocation];
[locationManager startUpdatingHeading];
if ([locationManager respondsToSelector:@selector(requestAlwaysAuthorization)]) {
[locationManager requestAlwaysAuthorization];
}
} else {
NSLog(@"Error: Failed to get heading services");
}
/****************************************************/
// Setup motion manager
/****************************************************/
if ([CMMotionManager availableAttitudeReferenceFrames] & CMAttitudeReferenceFrameXTrueNorthZVertical) {
motionManager = [[CMMotionManager alloc] init];
[motionManager startDeviceMotionUpdatesUsingReferenceFrame:CMAttitudeReferenceFrameXTrueNorthZVertical];
motionManager.deviceMotionUpdateInterval = MOTION_UPDATE_INTERVAL;
} else {
NSLog(@"Error: Failed to get reference frame");
}
/*******************/
// Initialize OpenGL
/*******************/
// Create an OpenGL ES context and assign it to the view loaded from storyboard
starFieldView = (GBStarFieldView *)self.view;
starFieldView.context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];
[starFieldView setup];
}
選擇視圖菜單,導航器,斷點導航器(⌘7)。
然后單擊斷點導航器列左下方的+,然后選擇“添加異常斷點”。 按住Control鍵單擊(或右鍵單擊)結果斷點,然后將其更改為在所有Objective-C異常時都中斷。
然后,作為最后一步,再次右鍵單擊該斷點,然后選擇“將斷點移至>用戶”。 這使所有項目的斷點變為全局。
添加異常斷點后,Xcode更有可能在錯誤的源代碼行上中斷。 這不是完美的方法,但是它確實使您更有可能看到實際的行,而不是main.m中的行,這沒有用。
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