iphone - Cocos2dx iOS App 崩溃

Question

所以我在这个极其奇怪和烦人的问题上被困了几天。所以我有一个应用程序发布到 ios 应用程序商店，我最近回去并为应用程序添加了一些额外的功能。我没有触及应用程序的核心，只是添加了一些东西，例如 twitter、facebook、应用内购买和 google admob(基于完整版的免费版本)。所以这就是事情变得奇怪的地方。我测试了我的更新，我制作了一个临时发布版本并在我的 iphone 3gs、4s、ipad 2 上进行了测试——完全没有问题。我提交给苹果他们批准了更新并发布了。我更新了应用程序并尝试运行它，但在启动画面后 boom 立即崩溃(同样这里没有任何更改)。我的项目使用 cocos2dx 框架(版本 cocos2d-2.0-x-2.0.4 @ 2012 年 11 月 2 日)，我使用 cocosbuilder (2.1)。我查看了日志，这似乎是 CCBReader::readFloat() 函数内部的未对齐问题。我发现这里有一个修复:https://github.com/DarraghCoy/cocos2d-x/commit/34b31fd754778f815fcac108089e3fe015e2e2b9 .

所以我继续修改我的默认案例: float CCBReader::readFloat() { 无符号字符类型 = this->readByte();

        switch (type) {
            case kCCBFloat0:
                return 0;    
            case kCCBFloat1:
                return 1;
            case kCCBFloatMinus1:
                return -1;
            case kCCBFloat05:
                return 0.5f;
            case kCCBFloatInteger:
                return (float)this->readInt(true);
            default:
                {
                    /* using a memcpy since the compiler isn't
                     * doing the float ptr math correctly on device.
                     * TODO still applies in C++ ? */
                    float * pF = (float*)(this->mBytes + this->mCurrentByte);
                    float f = 0;

                    memcpy( &f, pF, sizeof(float));
                    this->mCurrentByte += 4;

                    return f;
                }
        }
    }

对此:

    float CCBReader::readFloat() {
        unsigned char type = this->readByte();

        switch (type) {
            case kCCBFloat0:
                return 0;    
            case kCCBFloat1:
                return 1;
            case kCCBFloatMinus1:
                return -1;
            case kCCBFloat05:
                return 0.5f;
            case kCCBFloatInteger:
                return (float)this->readInt(true);
            default:
                {
                    /* using a memcpy since the compiler isn't
                     * doing the float ptr math correctly on device.
                     * TODO still applies in C++ ? */
                    float * pF = (float*)(this->mBytes + this->mCurrentByte);
                    float f = 0;

                    memcpy((void*) &f, (const void*) pF, sizeof(float));

                    this->mCurrentByte += sizeof(float);


                    return f;
                }
        }
    }        

再次在设备上测试发布版本没有问题。我将此修复程序提交给苹果并要求加快审查，以便该应用程序能够运行而不是崩溃，并且它在 1 天内获得了苹果的批准并被运出。我更新到新版本发布并再次崩溃。

这是崩溃日志的副本:

Incident Identifier: DCFEA2A4-9707-4FF7-A4B7-26CF61B4A73F
CrashReporter Key:   b91e2f134184158618753244f837ff2ac5114f0d
Hardware Model:      iPhone4,1
Process:         GAMEAPP [848]
Path:            /var/mobile/Applications/F860F02C-3D16-4995-A19F-CE036200209F/GAMEAPP.app/GAMEAPP
Identifier:      GAMEAPP
Version:         ??? (???)
Code Type:       ARM (Native)
Parent Process:  launchd [1]

Date/Time:       2013-03-01 19:42:44.987 -0500
OS Version:      iOS 6.1.2 (10B146)
Report Version:  104

Exception Type:  EXC_BAD_ACCESS (SIGBUS)
Exception Codes: EXC_ARM_DA_ALIGN at 0x1f0807c9
Crashed Thread:  0

Thread 0 name:  Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0   GAMEAPP                     0x000f971c cocos2d::extension::CCBReader::readFloat() (CCBReader.cpp:422)
1   GAMEAPP                     0x000f9e52 cocos2d::extension::CCBReader::readKeyframe(int) (CCBReader.cpp:648)
2   GAMEAPP                     0x000f99ae cocos2d::extension::CCBReader::readNodeGraph(cocos2d::CCNode*) (CCBReader.cpp:509)
3   GAMEAPP                     0x000f9c20 cocos2d::extension::CCBReader::readNodeGraph(cocos2d::CCNode*) (CCBReader.cpp:586)
4   GAMEAPP                     0x000f9342 cocos2d::extension::CCBReader::readFileWithCleanUp(bool) (CCBReader.cpp:689)
5   GAMEAPP                     0x000f92ec cocos2d::extension::CCBReader::readNodeGraphFromData(cocos2d::extension::CCData*, cocos2d::CCObject*, cocos2d::CCSize const&, cocos2d::extension::CCBAnimationManager**) (CCBReader.cpp:230)
6   GAMEAPP                     0x000f91aa cocos2d::extension::CCBReader::readNodeGraphFromFile(char const*, cocos2d::CCObject*, cocos2d::CCSize const&, cocos2d::extension::CCBAnimationManager**) (CCBReader.cpp:213)
7   GAMEAPP                     0x000f90a4 cocos2d::extension::CCBReader::readNodeGraphFromFile(char const*, cocos2d::CCObject*) (CCBReader.cpp:192)
8   GAMEAPP                     0x00119b50 IntroScene::init() (IntroScene.cpp:55)
9   GAMEAPP                     0x00119ca8 IntroScene::create() (IntroScene.h:19)
10  GAMEAPP                     0x00119a7c IntroScene::scene() (IntroScene.cpp:22)
11  GAMEAPP                     0x00110290 AppDelegate::applicationDidFinishLaunching() (AppDelegate.cpp:144)
12  GAMEAPP                     0x000dab94 cocos2d::CCApplication::run() (CCApplication.mm:50)
13  GAMEAPP                     0x000b6610 -[AppController application:didFinishLaunchingWithOptions:] (AppController.mm:76)
14  UIKit                           0x36522ad4 -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 248
15  UIKit                           0x3652265e -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1186
16  UIKit                           0x3651a846 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 694
17  UIKit                           0x364c2c34 -[UIApplication handleEvent:withNewEvent:] + 1000
18  UIKit                           0x364c26c8 -[UIApplication sendEvent:] + 68
19  UIKit                           0x364c2116 _UIApplicationHandleEvent + 6150
20  GraphicsServices                0x381d85a0 _PurpleEventCallback + 588
21  GraphicsServices                0x381d81ce PurpleEventCallback + 30
22  CoreFoundation                  0x3468f170 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 32
23  CoreFoundation                  0x3468f112 __CFRunLoopDoSource1 + 134
24  CoreFoundation                  0x3468df94 __CFRunLoopRun + 1380
25  CoreFoundation                  0x34600eb8 CFRunLoopRunSpecific + 352
26  CoreFoundation                  0x34600d44 CFRunLoopRunInMode + 100
27  UIKit                           0x36519480 -[UIApplication _run] + 664
28  UIKit                           0x365162fc UIApplicationMain + 1116
29  GAMEAPP                     0x000b6c22 main (main.m:14)
30  GAMEAPP                     0x000b6344 start + 36

Thread 1:
0   libsystem_kernel.dylib          0x3c8d5d98 __workq_kernreturn + 8
1   libsystem_c.dylib               0x3c823cf6 _pthread_workq_return + 14
2   libsystem_c.dylib               0x3c823a12 _pthread_wqthread + 362
3   libsystem_c.dylib               0x3c8238a0 start_wqthread + 4

Thread 2 name:  Dispatch queue: com.apple.libdispatch-manager
Thread 2:
0   libsystem_kernel.dylib          0x3c8c5648 kevent64 + 24
1   libdispatch.dylib               0x3c7f5974 _dispatch_mgr_invoke + 792
2   libdispatch.dylib               0x3c7f5654 _dispatch_mgr_thread$VARIANT$mp + 32

Thread 3:
0   libsystem_kernel.dylib          0x3c8d5d98 __workq_kernreturn + 8
1   libsystem_c.dylib               0x3c823cf6 _pthread_workq_return + 14
2   libsystem_c.dylib               0x3c823a12 _pthread_wqthread + 362
3   libsystem_c.dylib               0x3c8238a0 start_wqthread + 4

Thread 4 name:  WebThread
Thread 4:
0   libsystem_kernel.dylib          0x3c8c4eb4 mach_msg_trap + 20
1   libsystem_kernel.dylib          0x3c8c5048 mach_msg + 36
2   CoreFoundation                  0x3468f040 __CFRunLoopServiceMachPort + 124
3   CoreFoundation                  0x3468dd9e __CFRunLoopRun + 878
4   CoreFoundation                  0x34600eb8 CFRunLoopRunSpecific + 352
5   CoreFoundation                  0x34600d44 CFRunLoopRunInMode + 100
6   WebCore                         0x3a60a500 RunWebThread(void*) + 440
7   libsystem_c.dylib               0x3c82e30e _pthread_start + 306
8   libsystem_c.dylib               0x3c82e1d4 thread_start + 4

Thread 5 name:  AURemoteIO::IOThread
Thread 5:
0   libsystem_kernel.dylib          0x3c8c4eb4 mach_msg_trap + 20
1   libsystem_kernel.dylib          0x3c8c5048 mach_msg + 36
2   AudioToolbox                    0x3418391c AURemoteIO::IOThread::Run() + 104
3   AudioToolbox                    0x34185c84 AURemoteIO::IOThread::Entry(void*) + 4
4   AudioToolbox                    0x340c3882 CAPThread::Entry(CAPThread*) + 294
5   libsystem_c.dylib               0x3c82e30e _pthread_start + 306
6   libsystem_c.dylib               0x3c82e1d4 thread_start + 4

Thread 0 crashed with ARM Thread State (32-bit):
    r0: 0x1ed49740    r1: 0x1f0807c9      r2: 0x000001cd      r3: 0x000001c8
    r4: 0x00000004    r5: 0x1ed49740      r6: 0x42480000      r7: 0x2fd4af48
    r8: 0xffffffff    r9: 0x000001c9     r10: 0x1ed49740     r11: 0x1ed4a8a0
    ip: 0x000001c7    sp: 0x2fd4af48      lr: 0x000f9e57      pc: 0x000f971c
  cpsr: 0x00000030

Binary Images:

我确实修改了其他链接器标志以包括 -lsqlite3.0 和 -ObjC(最初它只是 -lxml2 和 -lz)。我的发布构建优化是 -Os(最快，最小)。

还有其他人有这个问题吗？我不知道如何调试它，因为我无法重现。最后，为什么苹果批准了该应用程序，但它在启动画面后立即崩溃了？如果我能猜到应用程序何时运行，它可能会在应用程序批准后进入“App Store 处理”阶段时损坏(不确定)。

谢谢!

Answer 1

根据您最后的陈述，我的第一 react 是 Apple 声称已解决的“应用程序更新错误”尚未完全解决。在更新期间添加的 DRM 补丁，以某种方式在启动时立即崩溃更新的应用程序。 http://www.tuaw.com/2013/03/01/bug-in-latest-evernote-for-ios-update-causes-the-app-to-crash/ https://discussions.apple.com/thread/3389977?start=0&tstart=0 http://www.pcworld.com/article/258827/updated_apps_crashing_heres_what_you_need_to_know.html

已经有很多与应用程序更新崩溃错误相关的类似问题。有一些最佳实践或变通方法，Apple 没有专门记录以避免更新错误。一定要检查一下。如果不是特定于您的应用程序，其中之一可能会为您锻炼。

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