我正在编写一个小包装器，以同样的方式学习C和SDL2。
今天我决定推出valgrind进行测试并看到它的实际效果。
嗯，结果非常可怕！它似乎像我的系统上的其他一些dyn libs正在泄漏！ （我们可以清楚地看到SDL2和OpenGL，但GPU驱动程序似乎也处于不良状态）:(在mac os x yosemite上运行）。我也粘贴了我的代码而且我没有看到错误，因为我没有手动在堆上分配内存。 SDL2正在独立完成。
==35991== Memcheck, a memory error detector
==35991== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==35991== Using Valgrind-3.11.0.SVN and LibVEX; rerun with -h for copyright info
==35991== Command: ./QSDL
==35991==
--35991-- ./QSDL:
--35991-- dSYM directory is missing; consider using --dsymutil=yes
==35991== Thread 2:
==35991== Invalid read of size 32
==35991== at 0x102908C1D: _platform_memchr$VARIANT$Haswell (in /usr/lib/system/libsystem_platform.dylib)
==35991== by 0x10291C93A: pthread_setname_np (in /usr/lib/system/libsystem_pthread.dylib)
==35991== by 0x10004272A: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x100042C64: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x100042708: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x10291C2FB: _pthread_body (in /usr/lib/system/libsystem_pthread.dylib)
==35991== by 0x10291C278: _pthread_start (in /usr/lib/system/libsystem_pthread.dylib)
==35991== by 0x10291A4B0: thread_start (in /usr/lib/system/libsystem_pthread.dylib)
==35991== Address 0x109b53a80 is 32 bytes before a block of size 16 in arena "client"
==35991==
==35991== Invalid read of size 32
==35991== at 0x102908C1D: _platform_memchr$VARIANT$Haswell (in /usr/lib/system/libsystem_platform.dylib)
==35991== by 0x10291C980: pthread_setname_np (in /usr/lib/system/libsystem_pthread.dylib)
==35991== by 0x10004272A: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x100042C64: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x100042708: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x10291C2FB: _pthread_body (in /usr/lib/system/libsystem_pthread.dylib)
==35991== by 0x10291C278: _pthread_start (in /usr/lib/system/libsystem_pthread.dylib)
==35991== by 0x10291A4B0: thread_start (in /usr/lib/system/libsystem_pthread.dylib)
==35991== Address 0x109b53a80 is 32 bytes before a block of size 16 in arena "client"
==35991==
--35991-- UNKNOWN __pthread_sigmask is unsupported.
--35991-- UNKNOWN host message [id 412, to mach_host_self(), reply 0x1003]
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x1003]
--35991-- UNKNOWN mach_msg unhandled MACH_SEND_TRAILER option
--35991-- UNKNOWN __pthread_sigmask is unsupported. (repeated 2 times)
--35991-- UNKNOWN mach_msg unhandled MACH_SEND_TRAILER option (repeated 2 times)
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x1803]
--35991-- UNKNOWN mach_msg unhandled MACH_SEND_TRAILER option (repeated 4 times)
--35991-- UNKNOWN mach_msg unhandled MACH_SEND_TRAILER option (repeated 8 times)
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x30f]
==35991== Thread 1:
==35991== Conditional jump or move depends on uninitialised value(s)
==35991== at 0x105207C1D: _LSApplicationCheckIn (in /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/LaunchServices)
==35991== by 0x107E08565: _RegisterApplication (in /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/HIServices.framework/Versions/A/HIServices)
==35991== by 0x107E06C88: GetCurrentProcess (in /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/HIServices.framework/Versions/A/HIServices)
==35991== by 0x100043D99: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x100047A12: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x100079911: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x10004025A: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x100000972: initScreen (in ./QSDL)
==35991== by 0x100000D04: main (in ./QSDL)
==35991==
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x30f] (repeated 2 times)
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x1803] (repeated 2 times)
--35991-- UNKNOWN mach_msg unhandled MACH_SEND_TRAILER option (repeated 16 times)
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x30f] (repeated 4 times)
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x1803] (repeated 4 times)
--35991-- UNKNOWN mach_msg unhandled MACH_SEND_TRAILER option (repeated 32 times)
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x1803] (repeated 8 times)
--35991-- UNKNOWN mach_msg unhandled MACH_SEND_TRAILER option (repeated 64 times)
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x30f] (repeated 8 times)
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x3c0b]
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x3c0b] (repeated 2 times)
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x2e0b]
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x2e0b] (repeated 2 times)
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x2e0b] (repeated 4 times)
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x30f] (repeated 16 times)
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x3c0b] (repeated 4 times)
--35991-- UNKNOWN mach_msg unhandled MACH_SEND_TRAILER option (repeated 128 times)
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x3c0b] (repeated 8 times)
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x2e0b] (repeated 8 times)
--35991-- UNKNOWN task message [id 4816, to mach_task_self(), reply 0x30f]
--35991-- UNKNOWN mach_msg unhandled MACH_SEND_TRAILER option (repeated 256 times)
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x6217]
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x6217] (repeated 2 times)
--35991-- UNKNOWN task message [id 4816, to mach_task_self(), reply 0x6217]
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x621b]
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x621b] (repeated 2 times)
==35991== Invalid write of size 8
==35991== at 0x123400003F8B: IntelStateHeaps::allocateHeap(IntelStateHeaps::HeapInfo&, unsigned int, unsigned int) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400003EA3: IntelStateHeaps::initHeaps(GLDShareGroupRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400003919: GenContext::Initialize(GLDContextRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400002FF9: Gen7Context::Initialize(GLDContextRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x1234000029E7: glrInitializeContext (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x10EF7FE96: gldCreateContext (in /System/Library/PrivateFrameworks/GPUSupport.framework/Versions/A/Libraries/libGPUSupportMercury.dylib)
==35991== by 0x11113581E: gliCreateContextWithShared (in /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLEngine.bundle/GLEngine)
==35991== by 0x100533B32: CGLCreateContext (in /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL)
==35991== by 0x1014C1E1B: -[NSOpenGLContext initWithFormat:shareContext:] (in /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit)
==35991== by 0x100046928: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x100046F77: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x10007EA23: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== Address 0x11314a038 is not stack'd, malloc'd or (recently) free'd
==35991==
==35991== Invalid write of size 8
==35991== at 0x123400003F93: IntelStateHeaps::allocateHeap(IntelStateHeaps::HeapInfo&, unsigned int, unsigned int) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400003EA3: IntelStateHeaps::initHeaps(GLDShareGroupRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400003919: GenContext::Initialize(GLDContextRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400002FF9: Gen7Context::Initialize(GLDContextRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x1234000029E7: glrInitializeContext (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x10EF7FE96: gldCreateContext (in /System/Library/PrivateFrameworks/GPUSupport.framework/Versions/A/Libraries/libGPUSupportMercury.dylib)
==35991== by 0x11113581E: gliCreateContextWithShared (in /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLEngine.bundle/GLEngine)
==35991== by 0x100533B32: CGLCreateContext (in /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL)
==35991== by 0x1014C1E1B: -[NSOpenGLContext initWithFormat:shareContext:] (in /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit)
==35991== by 0x100046928: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x100046F77: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x10007EA23: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== Address 0x11314a030 is not stack'd, malloc'd or (recently) free'd
==35991==
==35991== Invalid write of size 8
==35991== at 0x123400003F9B: IntelStateHeaps::allocateHeap(IntelStateHeaps::HeapInfo&, unsigned int, unsigned int) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400003EA3: IntelStateHeaps::initHeaps(GLDShareGroupRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400003919: GenContext::Initialize(GLDContextRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400002FF9: Gen7Context::Initialize(GLDContextRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x1234000029E7: glrInitializeContext (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x10EF7FE96: gldCreateContext (in /System/Library/PrivateFrameworks/GPUSupport.framework/Versions/A/Libraries/libGPUSupportMercury.dylib)
==35991== by 0x11113581E: gliCreateContextWithShared (in /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLEngine.bundle/GLEngine)
==35991== by 0x100533B32: CGLCreateContext (in /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL)
==35991== by 0x1014C1E1B: -[NSOpenGLContext initWithFormat:shareContext:] (in /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit)
==35991== by 0x100046928: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x100046F77: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x10007EA23: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== Address 0x11314a028 is not stack'd, malloc'd or (recently) free'd
==35991==
==35991== Invalid write of size 8
==35991== at 0x123400003FA3: IntelStateHeaps::allocateHeap(IntelStateHeaps::HeapInfo&, unsigned int, unsigned int) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400003EA3: IntelStateHeaps::initHeaps(GLDShareGroupRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400003919: GenContext::Initialize(GLDContextRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400002FF9: Gen7Context::Initialize(GLDContextRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x1234000029E7: glrInitializeContext (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x10EF7FE96: gldCreateContext (in /System/Library/PrivateFrameworks/GPUSupport.framework/Versions/A/Libraries/libGPUSupportMercury.dylib)
==35991== by 0x11113581E: gliCreateContextWithShared (in /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLEngine.bundle/GLEngine)
==35991== by 0x100533B32: CGLCreateContext (in /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL)
==35991== by 0x1014C1E1B: -[NSOpenGLContext initWithFormat:shareContext:] (in /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit)
==35991== by 0x100046928: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x100046F77: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x10007EA23: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== Address 0x11314a020 is not stack'd, malloc'd or (recently) free'd
==35991==
==35991== Invalid write of size 8
==35991== at 0x123400003FAB: IntelStateHeaps::allocateHeap(IntelStateHeaps::HeapInfo&, unsigned int, unsigned int) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400003EA3: IntelStateHeaps::initHeaps(GLDShareGroupRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400003919: GenContext::Initialize(GLDContextRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400002FF9: Gen7Context::Initialize(GLDContextRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x1234000029E7: glrInitializeContext (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x10EF7FE96: gldCreateContext (in /System/Library/PrivateFrameworks/GPUSupport.framework/Versions/A/Libraries/libGPUSupportMercury.dylib)
==35991== by 0x11113581E: gliCreateContextWithShared (in /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLEngine.bundle/GLEngine)
==35991== by 0x100533B32: CGLCreateContext (in /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL)
==35991== by 0x1014C1E1B: -[NSOpenGLContext initWithFormat:shareContext:] (in /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit)
==35991== by 0x100046928: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x100046F77: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x10007EA23: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== Address 0x11314a018 is not stack'd, malloc'd or (recently) free'd
==35991==
==35991== Invalid write of size 8
==35991== at 0x123400003FB3: IntelStateHeaps::allocateHeap(IntelStateHeaps::HeapInfo&, unsigned int, unsigned int) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400003EA3: IntelStateHeaps::initHeaps(GLDShareGroupRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400003919: GenContext::Initialize(GLDContextRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400002FF9: Gen7Context::Initialize(GLDContextRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x1234000029E7: glrInitializeContext (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x10EF7FE96: gldCreateContext (in /System/Library/PrivateFrameworks/GPUSupport.framework/Versions/A/Libraries/libGPUSupportMercury.dylib)
==35991== by 0x11113581E: gliCreateContextWithShared (in /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLEngine.bundle/GLEngine)
==35991== by 0x100533B32: CGLCreateContext (in /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL)
==35991== by 0x1014C1E1B: -[NSOpenGLContext initWithFormat:shareContext:] (in /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit)
==35991== by 0x100046928: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x100046F77: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x10007EA23: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== Address 0x11314a010 is not stack'd, malloc'd or (recently) free'd
==35991==
==35991== Invalid write of size 8
==35991== at 0x123400003FBB: IntelStateHeaps::allocateHeap(IntelStateHeaps::HeapInfo&, unsigned int, unsigned int) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400003EA3: IntelStateHeaps::initHeaps(GLDShareGroupRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400003919: GenContext::Initialize(GLDContextRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400002FF9: Gen7Context::Initialize(GLDContextRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x1234000029E7: glrInitializeContext (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x10EF7FE96: gldCreateContext (in /System/Library/PrivateFrameworks/GPUSupport.framework/Versions/A/Libraries/libGPUSupportMercury.dylib)
==35991== by 0x11113581E: gliCreateContextWithShared (in /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLEngine.bundle/GLEngine)
==35991== by 0x100533B32: CGLCreateContext (in /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL)
==35991== by 0x1014C1E1B: -[NSOpenGLContext initWithFormat:shareContext:] (in /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit)
==35991== by 0x100046928: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x100046F77: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x10007EA23: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== Address 0x11314a008 is not stack'd, malloc'd or (recently) free'd
==35991==
==35991== Invalid write of size 8
==35991== at 0x123400003FC3: IntelStateHeaps::allocateHeap(IntelStateHeaps::HeapInfo&, unsigned int, unsigned int) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400003EA3: IntelStateHeaps::initHeaps(GLDShareGroupRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400003919: GenContext::Initialize(GLDContextRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x123400002FF9: Gen7Context::Initialize(GLDContextRec*) (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x1234000029E7: glrInitializeContext (in /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver)
==35991== by 0x10EF7FE96: gldCreateContext (in /System/Library/PrivateFrameworks/GPUSupport.framework/Versions/A/Libraries/libGPUSupportMercury.dylib)
==35991== by 0x11113581E: gliCreateContextWithShared (in /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLEngine.bundle/GLEngine)
==35991== by 0x100533B32: CGLCreateContext (in /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL)
==35991== by 0x1014C1E1B: -[NSOpenGLContext initWithFormat:shareContext:] (in /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit)
==35991== by 0x100046928: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x100046F77: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x10007EA23: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== Address 0x11314a000 is not stack'd, malloc'd or (recently) free'd
==35991==
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x1803] (repeated 16 times)
==35991== Conditional jump or move depends on uninitialised value(s)
==35991== at 0x1112162CF: glViewportArrayv_Core (in /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLEngine.bundle/GLEngine)
==35991== by 0x11114AEAD: glViewport_Exec (in /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLEngine.bundle/GLEngine)
==35991== by 0x10009A255: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x10009BE95: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x1000982B2: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x10007F293: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x100000A2A: initScreen (in ./QSDL)
==35991== by 0x100000D04: main (in ./QSDL)
==35991==
==35991== Conditional jump or move depends on uninitialised value(s)
==35991== at 0x1112162CF: glViewportArrayv_Core (in /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLEngine.bundle/GLEngine)
==35991== by 0x11114AEAD: glViewport_Exec (in /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLEngine.bundle/GLEngine)
==35991== by 0x10009A255: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x10007F356: ??? (in /Library/Frameworks/SDL2.framework/Versions/A/SDL2)
==35991== by 0x100000A2A: initScreen (in ./QSDL)
==35991== by 0x100000D04: main (in ./QSDL)
==35991==
--35991-- UNKNOWN host message [id 222, to mach_host_self(), reply 0x621b] (repeated 4 times)
==35991==
==35991== HEAP SUMMARY:
==35991== in use at exit: 4,963,922 bytes in 13,493 blocks
==35991== total heap usage: 86,557 allocs, 73,064 frees, 180,996,329 bytes allocated
==35991==
==35991== LEAK SUMMARY:
==35991== definitely lost: 123,533 bytes in 363 blocks
==35991== indirectly lost: 575,572 bytes in 3,074 blocks
==35991== possibly lost: 1,619,730 bytes in 2,120 blocks
==35991== still reachable: 2,645,087 bytes in 7,936 blocks
==35991== suppressed: 0 bytes in 0 blocks
==35991== Rerun with --leak-check=full to see details of leaked memory
==35991==
==35991== For counts of detected and suppressed errors, rerun with: -v
==35991== Use --track-origins=yes to see where uninitialised values come from
==35991== ERROR SUMMARY: 29 errors from 13 contexts (suppressed: 131 from 23)
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <SDL2/SDL.h>
//Globals
SDL_Window* window = NULL;
SDL_Renderer* renderer = NULL;
int initScreen(unsigned int w, unsigned int h, const char * title) {
if (w < 1 || h < 1) {
printf("ERROR: width / height are invalid\n");
return -1;
}
//SDL_INIT_EVERYTHING flag to init all SDL components
if (SDL_Init(SDL_INIT_EVERYTHING) < 0) {
printf("ERROR: Unable to init SDL: %s\n", SDL_GetError());
SDL_Quit();
return -1;
}
//Init window
window = SDL_CreateWindow(title, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, w, h, SDL_WINDOW_SHOWN);
if (window == NULL) {
printf("ERROR: Unable to create window: %s\n", SDL_GetError());
SDL_DestroyWindow(window);
SDL_Quit();
return -1;
}
//Init renderer to take advantage of GPU
renderer = SDL_CreateRenderer(window, -1, 0);
if (renderer == NULL) {
printf("ERROR: Unable to create renderer: %s\n", SDL_GetError());
SDL_DestroyRenderer(renderer);
SDL_Quit();
return -1;
}
return 0;
}
SDL_Texture* loadTexture(const char * fpath) {
SDL_Texture* texture = NULL;
SDL_Surface* surface = NULL;
if (strlen(fpath) == 0) {
printf("ERROR: No path given\n");
}
else {
surface = SDL_LoadBMP(fpath);
if (surface == NULL) {
printf("ERROR: %s\n", SDL_GetError());
}
else {
texture = SDL_CreateTextureFromSurface(renderer, surface);
if (texture == NULL) {
printf("ERROR: %s\n", SDL_GetError());
SDL_DestroyTexture(texture);
}
SDL_FreeSurface(surface);
}
}
return texture;
}
void drawTexture(SDL_Texture * texture) {
if (texture == NULL) {
printf("ERROR: Can't draw an undefined texture\n");
}
SDL_RenderCopy(renderer, texture, NULL, NULL);
}
void clear() {
SDL_RenderClear(renderer);
}
void update() {
SDL_RenderPresent(renderer);
}
//Texture processing helper
void genXOR(unsigned int w, unsigned int h) {
for(unsigned int x = 0; x < w; x++) {
for(unsigned int y = 0; y < h; y++) {
Uint8 c = x ^ y;
SDL_SetRenderDrawColor(renderer, c, c, c, 255);
SDL_Rect rect = {x, y, w, h};
SDL_RenderFillRect(renderer, &rect);
}
}
}
int main() {
initScreen(640, 480, "Main");
// clear();
// genXOR(640, 480);
// update();
SDL_Delay(3000);
renderer = NULL;
window = NULL;
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(window);
SDL_QuitSubSystem(SDL_INIT_EVERYTHING);
SDL_Quit();
return EXIT_SUCCESS;
}
我的问题是：你有过这样的经历吗？我现在可以做些什么来解决这些泄漏问题，因为我所有的＆＃34;拥有＆＃34;代码是关于堆栈的自动分配。