windows下使用VS 方法一 在主函数最上端加上，否则无法显示行号
1 2 #define _CRTDBG_MAP_ALLOC #include <crtdbg.h>
然后，在主函数最后一句return 0;前面加上_CrtDumpMemoryLeaks();，注意在debug下运行程序 ，就会出现在那一行多少字节的错误。
例如：
1 2 3 4 Detected memory leaks! Dumping objects -> e:\darknet_yolo_windows_qt\darknet_vs_exportdll\src\runexe\network.c(37) : {150} normal block at 0x0000027FAD65DF60, 264 bytes long. Data: < R > 00 00 52 15 0B 00 00 00 10 00 00 00 01 00 00 00
这时，在主函数开头加上一句_CrtSetBreakAlloc(150);，即可在内存泄露的语句停下，其实是与双击上面那句话找到的位置相同。
方法二 安装vld ，然后在主函数所在的源程序加上
即可查看泄露了多少内存
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 WARNING: Visual Leak Detector detected memory leaks! - Leak Hash: 0x1FFF84A9, Count: 1, Total 264 bytes Call Stack (TID 11092): ucrtbased.dll!calloc_dbg() e:\darknet_yolo_windows_qt\darknet_vs_exportdll\src\runexe\network.c (37): darknet_exe.exe!load_network_custom() + 0x2A bytes e:\darknet_yolo_windows_qt\darknet_vs_exportdll\src\runexe\network.c (49): darknet_exe.exe!load_network() e:\darknet_yolo_windows_qt\darknet_vs_exportdll\src\runexe\my_detect.c (70): darknet_exe.exe!my_load_weight() + 0x16 bytes e:\darknet_yolo_windows_qt\darknet_vs_exportdll\src\runexe\main.c (27): darknet_exe.exe!main() + 0x13 bytes f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl (75): darknet_exe.exe!invoke_main() f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl (264): darknet_exe.exe!__scrt_common_main_seh() + 0x5 bytes f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl (309): darknet_exe.exe!__scrt_common_main() f:\dd\vctools\crt\vcstartup\src\startup\exe_main.cpp (17): darknet_exe.exe!mainCRTStartup() KERNEL32.DLL!BaseThreadInitThunk() + 0x14 bytes ntdll.dll!RtlUserThreadStart() + 0x21 bytes Data: 00 00 52 15 0B 00 00 00 10 00 00 00 01 00 00 00 ..R..... ........ D0 06 EA 83 47 02 00 00 00 00 00 00 01 00 00 00 ....G... ........ 66 66 66 3F 6F 12 03 3A 80 C4 EB 83 47 02 00 00 fff?o..: ....G... 85 52 00 00 00 00 00 00 E0 8F 08 B9 47 02 00 00 .R...... ....G... 04 00 00 00 6F 12 83 3A 00 00 00 00 00 00 00 00 ....o..: ........ 00 00 80 40 01 00 00 00 00 00 00 00 08 9D 00 00 ...@.... ........ B0 A1 E9 83 47 02 00 00 20 A0 E9 83 47 02 00 00 ....G... ....G... 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ........ ........ 00 00 00 00 00 00 00 00 00 EC 07 00 A0 01 00 00 ........ ........ A0 01 00 00 03 00 00 00 40 03 00 00 A0 01 00 00 ........ @....... 01 00 00 00 00 00 00 00 00 00 80 3F 00 00 C0 3F ........ ...?...? 00 00 C0 3F CD CC CC 3D 00 00 00 00 00 00 00 00 ...?...= ........ 00 00 00 00 00 00 00 00 00 00 54 19 0B 00 00 00 ........ ..T..... B0 9C E9 83 47 02 00 00 00 9D E9 83 47 02 00 00 ....G... ....G... 50 9D E9 83 47 02 00 00 A0 9D E9 83 47 02 00 00 P...G... ....G... E0 9E E9 83 47 02 00 00 30 9F E9 83 47 02 00 00 ....G... 0...G... Visual Leak Detector detected 1 memory leak (316 bytes). Largest number used: 275309586 bytes. Total allocations: 318639983 bytes. Visual Leak Detector is now exiting.
若你默认安装的话，该方法所读取的配置文件在C:\Program Files (x86)\Visual Leak Detector\vld.ini，可以修改该配置文件中的ReportTo = debugger为ReportTo = both，即可同时保存信息到文本中与debugger总。
同时使用方法一和方法二 打印出来的结果如下：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 Detected memory leaks! Dumping objects -> e:\darknet_yolo_windows_qt\darknet_vs_exportdll\src\runexe\network.c(37) : {150} normal block at 0x0000024783E909A0, 264 bytes long. Data: < R > 00 00 52 15 0B 00 00 00 10 00 00 00 01 00 00 00 Object dump complete. 线程 0x29f4 已退出，返回值为 0 (0x0)。 线程 0x3970 已退出，返回值为 0 (0x0)。 线程 0xac4 已退出，返回值为 0 (0x0)。 线程 0x30fc 已退出，返回值为 0 (0x0)。 线程 0x3f50 已退出，返回值为 0 (0x0)。 线程 0x3ab4 已退出，返回值为 0 (0x0)。 线程 0x2a40 已退出，返回值为 0 (0x0)。 WARNING: Visual Leak Detector detected memory leaks! - Leak Hash: 0x1FFF84A9, Count: 1, Total 264 bytes Call Stack (TID 11092): ucrtbased.dll!calloc_dbg() e:\darknet_yolo_windows_qt\darknet_vs_exportdll\src\runexe\network.c (37): darknet_exe.exe!load_network_custom() + 0x2A bytes e:\darknet_yolo_windows_qt\darknet_vs_exportdll\src\runexe\network.c (49): darknet_exe.exe!load_network() e:\darknet_yolo_windows_qt\darknet_vs_exportdll\src\runexe\my_detect.c (70): darknet_exe.exe!my_load_weight() + 0x16 bytes e:\darknet_yolo_windows_qt\darknet_vs_exportdll\src\runexe\main.c (27): darknet_exe.exe!main() + 0x13 bytes f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl (75): darknet_exe.exe!invoke_main() f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl (264): darknet_exe.exe!__scrt_common_main_seh() + 0x5 bytes f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl (309): darknet_exe.exe!__scrt_common_main() f:\dd\vctools\crt\vcstartup\src\startup\exe_main.cpp (17): darknet_exe.exe!mainCRTStartup() KERNEL32.DLL!BaseThreadInitThunk() + 0x14 bytes ntdll.dll!RtlUserThreadStart() + 0x21 bytes Data: 00 00 52 15 0B 00 00 00 10 00 00 00 01 00 00 00 ..R..... ........ D0 06 EA 83 47 02 00 00 00 00 00 00 01 00 00 00 ....G... ........ 66 66 66 3F 6F 12 03 3A 80 C4 EB 83 47 02 00 00 fff?o..: ....G... 85 52 00 00 00 00 00 00 E0 8F 08 B9 47 02 00 00 .R...... ....G... 04 00 00 00 6F 12 83 3A 00 00 00 00 00 00 00 00 ....o..: ........ 00 00 80 40 01 00 00 00 00 00 00 00 08 9D 00 00 ...@.... ........ B0 A1 E9 83 47 02 00 00 20 A0 E9 83 47 02 00 00 ....G... ....G... 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ........ ........ 00 00 00 00 00 00 00 00 00 EC 07 00 A0 01 00 00 ........ ........ A0 01 00 00 03 00 00 00 40 03 00 00 A0 01 00 00 ........ @....... 01 00 00 00 00 00 00 00 00 00 80 3F 00 00 C0 3F ........ ...?...? 00 00 C0 3F CD CC CC 3D 00 00 00 00 00 00 00 00 ...?...= ........ 00 00 00 00 00 00 00 00 00 00 54 19 0B 00 00 00 ........ ..T..... B0 9C E9 83 47 02 00 00 00 9D E9 83 47 02 00 00 ....G... ....G... 50 9D E9 83 47 02 00 00 A0 9D E9 83 47 02 00 00 P...G... ....G... E0 9E E9 83 47 02 00 00 30 9F E9 83 47 02 00 00 ....G... 0...G... Visual Leak Detector detected 1 memory leak (316 bytes). Largest number used: 275309586 bytes. Total allocations: 318639983 bytes. Visual Leak Detector is now exiting.
Linux下 在要检查函数文件前面加上
接着在main函数内部加上下面两句话,则最终信息会保留在mtrace.out文件中
1 2 setenv("MALLOC_TRACE", "mtrace.out", 1); mtrace();
总的文件实例如下:
编译加上-g参数
