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2014/10/15 ¤U¤È 10:09:31
iphone Programming Glossary: gdbiPhone development: pointer being freed was not allocated http://stackoverflow.com/questions/1424210/iphone-development-pointer-being-freed-was-not-allocated being freed was not allocated set a breakpoint in malloc_error_break to debug so i did a bit of tracing and got gdb shell malloc_history 1257 0x21a8000 ALLOC 0x2196a00 0x21a89ff size 73728 thread_a0610500 start main UIApplicationMain GSEventRun..
http://stackoverflow.com/questions/2496554/easiest-way-to-support-multiple-orientations-how-do-i-load-a-custom-nib-when-th NSLog @ Landscape detected self initWithNibName @ myViewControllerLandscape bundle nil But I can see in gdb that this isn't executed when the app is started with the device in landscape. The NSLog message doesn't fire. Why is this..
Program received signal: ???? Data Formatters temporarily unavailable http://stackoverflow.com/questions/2813454/program-received-signal-0-data-formatters-temporarily-unavailable will re try after a 'continue'. Unknown error loading shared library Developer usr lib libXcodeDebuggerSupport.dylib gdb Does anyone know why this would pop up Google isn't helping me here... Thanks iphone xcode ipad share improve this question..
How to dump data stored in objective-c object (NSArray or NSDictionary) http://stackoverflow.com/questions/289241/how-to-dump-data-stored-in-objective-c-object-nsarray-or-nsdictionary for Objective C It would be very convenient in a few cases to be able to dump everything like that instead of using gdb to inspect each variable. iphone objective c gdb dump share improve this question In Cocoa there is no dump like PHP's.. a few cases to be able to dump everything like that instead of using gdb to inspect each variable. iphone objective c gdb dump share improve this question In Cocoa there is no dump like PHP's print_r or python's repr since there is no textual.. defined in NSObject for the purpose of printing a description not a dump of an object. If you invoke po myObj in gdb you get myObj debugDescription often the same as description but not always . Classes like NSArray and NSDictionary and..
Xcode/GDB: How to get information about an exception that was just thrown? http://stackoverflow.com/questions/3327828/xcode-gdb-how-to-get-information-about-an-exception-that-was-just-thrown I want to get some more information about the exception object. Where do I find it iphone objective c xcode debugging gdb share improve this question The exception object is passed in as the first argument to objc_exception_throw . The syntax.. the pointer to the object is in register r0 . To print it or send messages to it use the following simple syntax gdb po r0 gdb po r0 name gdb po r0 reason On the iPhone Simulator all function arguments are passed on the stack so the syntax.. pointer to the object is in register r0 . To print it or send messages to it use the following simple syntax gdb po r0 gdb po r0 name gdb po r0 reason On the iPhone Simulator all function arguments are passed on the stack so the syntax is considerably..
iOS CVImageBuffer distorted from AVCaptureSessionDataOutput with AVCaptureSessionPresetPhoto http://stackoverflow.com/questions/6540710/ios-cvimagebuffer-distorted-from-avcapturesessiondataoutput-with-avcapturesessio this question This was a doozy. As Lio Ben Kereth pointed out the padding is 48 as you can see from the debugger gdb po pixelBuffer CVPixelBuffer 0x2934d0 width 852 height 640 bytesPerRow 3456 pixelFormat BGRA # 3456 852 4 48 OpenGL can..
thread 1 program received signal SIGABRT http://stackoverflow.com/questions/8085556/thread-1-program-received-signal-sigabrt 0x30ffe4f5 0x30ffd343 0x30f804dd 0x30f803a5 0x33baefed 0x32ff2743 0x25b5 0x2574 terminate called throwing an exception gdb That is what the output box tells me. iphone ios4 memory error handling compiler errors share improve this question ..
Crash when using gesture recognizers in StoryBoard http://stackoverflow.com/questions/9035826/crash-when-using-gesture-recognizers-in-storyboard for most classes . On the simulator you can ask the debugger to print the object's debugDescription like this gdb frame 0 #0 0x013bcbff in NSObject doesNotRecognizeSelector gdb po int ebp 2 this is my test string On the device you do.. to print the object's debugDescription like this gdb frame 0 #0 0x013bcbff in NSObject doesNotRecognizeSelector gdb po int ebp 2 this is my test string On the device you do this gdb frame 0 #0 0x344bca22 in NSObject doesNotRecognizeSelector.. 0 #0 0x013bcbff in NSObject doesNotRecognizeSelector gdb po int ebp 2 this is my test string On the device you do this gdb frame 0 #0 0x344bca22 in NSObject doesNotRecognizeSelector gdb po r0 this is my test string Update Based on your steps to..
http://stackoverflow.com/questions/9707883/gdb-vs-lldb-debuggers version from 4.2 to 4.3 started getting warning to upgrade my debugger from GDB to LLDB. iphone xcode cocoa touch gdb lldb share improve this question LLDB is part of the LLVM suite of tools that Apple is moving to including Clang. There..
http://stackoverflow.com/questions/983657/iphone-device-debugging Also I'm unsure if it's better to leave this question unanswered or pick the most helpful answer... iphone debugging gdb breakpoints share improve this question Yes just use a device build. You have to get certificates and provision it...
Xcode/GDB: How to get information about an exception that was just thrown? http://stackoverflow.com/questions/3327828/xcode-gdb-how-to-get-information-about-an-exception-that-was-just-thrown GDB How to get information about an exception that was just thrown OK so imagine that my breakpoint in objc_exception_throw..
Jailbroken iPhone 3G with iOS 4.2.1 can't be debugged with XCode http://stackoverflow.com/questions/4432886/jailbroken-iphone-3g-with-ios-4-2-1-cant-be-debugged-with-xcode will re try after a 'continue'. Can't find dlopen function so it is not possible to load shared libraries. message in GDB. When I start debug without enabled breakpoints application starts without problems. I tried to do steps decribed there..
Building with LLVM and any optimization causes app to crash on startup http://stackoverflow.com/questions/5490432/building-with-llvm-and-any-optimization-causes-app-to-crash-on-startup device simulator is ok . I can't seem to debug the crash as it does not happen when i build in xcode and attach via GDB LLDB. Also the crash only happens when i build the app on the command line with xcodebuild building via the XCode IDE doesn't..
iPhone Dev: Xcode debugger does not stop on breakpoints http://stackoverflow.com/questions/601265/iphone-dev-xcode-debugger-does-not-stop-on-breakpoints gdb 6.3.50 20050815 Apple version gdb 962 Sat Jul 26 08 14 40 UTC 2008 Copyright 2004 Free Software Foundation Inc. GDB is free software covered by the GNU General Public License and you are welcome to change it and or distribute copies of.. copies of it under certain conditions. Type show copying to see the conditions. There is absolutely no warranty for GDB. Type show warranty for details. This GDB was configured as i386 apple darwin .warning Unable to read symbols for System.. Type show copying to see the conditions. There is absolutely no warranty for GDB. Type show warranty for details. This GDB was configured as i386 apple darwin .warning Unable to read symbols for System Library Frameworks UIKit.framework UIKit..
How do i resolve EXC_BAD_ACCESS errors encountered in iphone development http://stackoverflow.com/questions/607222/how-do-i-resolve-exc-bad-access-errors-encountered-in-iphone-development things with it later. Writing the file works fine but when i try to read it back i get an EXC_BAD_ACCESS error in GDB that i have no idea how to resolve. Here is what my code basically looks like UIImage downloadImageToFile NSURL url NSURL..
Random EXC_BAD_ACCESS in a place that it cannot happen http://stackoverflow.com/questions/6359111/random-exc-bad-access-in-a-place-that-it-cannot-happen forKey key ` LevelEditorScene is a class setObject forKey is a method I implemented not the one from NSObject In GDB gdb print object LevelEditorScene sharedLevelEditor LevelEditorScene 06C3FF40 Tag 1 Means LevelEditorScene sharedLevelEditor..
Debugging exception thrown in Objective C and XCode http://stackoverflow.com/questions/711650/debugging-exception-thrown-in-objective-c-and-xcode with a dot and put this in it fb NSException raise fb objc_exception_throw fb malloc_error_break That'll initialize GDB with three default breakpoints when they occur GDB will halt your application and show you the stack trace. This is very.. fb objc_exception_throw fb malloc_error_break That'll initialize GDB with three default breakpoints when they occur GDB will halt your application and show you the stack trace. This is very well integrated with Xcode so you'll be able to nicely.. until you fix them. When things do get past the compiler's nose you should be able to find the problem easily with GDB breaking at a convenient spot. You should also look into NSZombie . These are environment variables that are very handy..
Extracting rgb from UIColor [duplicate] http://stackoverflow.com/questions/816828/extracting-rgb-from-uicolor work. const CGFloat toCol CGColorGetComponents UIColor greenColor CGColor The array is empty from looking at it with GDB. Any hints iphone core graphics uicolor cgcolor share improve this question The code sample you provided should work...
UINavigationController and autorotation http://stackoverflow.com/questions/970482/uinavigationcontroller-and-autorotation it is actually defined. This is a huge hack and I'd like a real solution. In search of a real solution I attached GDB to the Photos application MobileSlideshow.app and discovered that it too uses UIDevice setOrientation . Being an internal..
http://stackoverflow.com/questions/9707883/gdb-vs-lldb-debuggers Vs LLDB debuggers What is the difference between GDB LLDB debuggers I recently upgraded my Xcode version from 4.2 to 4.3.. Vs LLDB debuggers What is the difference between GDB LLDB debuggers I recently upgraded my Xcode version from 4.2 to 4.3 started getting warning to upgrade my debugger from.. debuggers I recently upgraded my Xcode version from 4.2 to 4.3 started getting warning to upgrade my debugger from GDB to LLDB. iphone xcode cocoa touch gdb lldb share improve this question LLDB is part of the LLVM suite of tools that..
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