我刚刚在 Windows 8 上安装了 Visual Leak Detector (2.3)。我用什么都不做的空白 CRT 程序(在 Visual Studio 2012 中)对其进行了测试。
#include <vld.h>
int main(int argc, char** argv)
{
return 0;
}
当我运行它时,VLD 报告了 vc++ crt 模块中的奇怪泄漏:
Visual Leak Detector Version 2.3 installed.
WARNING: Visual Leak Detector detected memory leaks!
---------- Block 31 at 0x0000000052C07530: 70 bytes ----------
Call Stack:
f:\dd\vctools\crt_bld\self_64_amd64\crt\src\stdenvp.c (127): my_application.exe!_setenvp + 0x27 bytes
f:\dd\vctools\crt_bld\self_64_amd64\crt\src\crt0.c (223): my_application.exe!__tmainCRTStartup + 0x5 bytes
f:\dd\vctools\crt_bld\self_64_amd64\crt\src\crt0.c (164): my_application.exe!mainCRTStartup
0x00000000FAF8167E (File and line number not available): KERNEL32.DLL!BaseThreadInitThunk + 0x1A bytes
0x00000000FD8CC3F1 (File and line number not available): ntdll.dll!RtlUserThreadStart + 0x21 bytes
Data:
20 B5 C0 52 50 00 00 00 50 92 C0 52 50 00 00 00 ...RP... P..RP...
20 91 DD E1 F6 07 00 00 7E 00 00 00 02 00 00 00 ........ ~.......
12 00 00 00 00 00 00 00 1F 00 00 00 FD FD FD FD ........ ........
50 52 4F 43 45 53 53 4F 52 5F 4C 45 56 45 4C 3D PROCESSO R_LEVEL=
36 00 FD FD FD FD 6....... ........
---------- Block 40 at 0x0000000052C075D0: 72 bytes ----------
Call Stack:
f:\dd\vctools\crt_bld\self_64_amd64\crt\src\stdenvp.c (127): my_application.exe!_setenvp + 0x27 bytes
f:\dd\vctools\crt_bld\self_64_amd64\crt\src\crt0.c (223): my_application.exe!__tmainCRTStartup + 0x5 bytes
f:\dd\vctools\crt_bld\self_64_amd64\crt\src\crt0.c (164): my_application.exe!mainCRTStartup
0x00000000FAF8167E (File and line number not available): KERNEL32.DLL!BaseThreadInitThunk + 0x1A bytes
0x00000000FD8CC3F1 (File and line number not available): ntdll.dll!RtlUserThreadStart + 0x21 bytes
Data:
F0 94 C0 52 50 00 00 00 20 76 C0 52 50 00 00 00 ...RP... .v.RP...
20 91 DD E1 F6 07 00 00 7E 00 00 00 02 00 00 00 ........ ~.......
14 00 00 00 00 00 00 00 28 00 00 00 FD FD FD FD ........ (.......
53 45 53 53 49 4F 4E 4E 41 4D 45 3D 43 6F 6E 73 SESSIONN AME=Cons
6F 6C 65 00 FD FD FD FD ole..... ........
---------- Block 41 at 0x0000000052C07620: 67 bytes ----------
Call Stack:
f:\dd\vctools\crt_bld\self_64_amd64\crt\src\stdenvp.c (127): my_application.exe!_setenvp + 0x27 bytes
f:\dd\vctools\crt_bld\self_64_amd64\crt\src\crt0.c (223): my_application.exe!__tmainCRTStartup + 0x5 bytes
f:\dd\vctools\crt_bld\self_64_amd64\crt\src\crt0.c (164): my_application.exe!mainCRTStartup
0x00000000FAF8167E (File and line number not available): KERNEL32.DLL!BaseThreadInitThunk + 0x1A bytes
0x00000000FD8CC3F1 (File and line number not available): ntdll.dll!RtlUserThreadStart + 0x21 bytes
Data:
D0 75 C0 52 50 00 00 00 D0 96 C0 52 50 00 00 00 .u.RP... ...RP...
20 91 DD E1 F6 07 00 00 7E 00 00 00 02 00 00 00 ........ ~.......
0F 00 00 00 00 00 00 00 29 00 00 00 FD FD FD FD ........ ).......
53 79 73 74 65 6D 44 72 69 76 65 3D 43 3A 00 FD SystemDr ive=C:..
FD FD FD ........ ........
---------- Block 43 at 0x0000000052C07670: 65 bytes ----------
Call Stack:
f:\dd\vctools\crt_bld\self_64_amd64\crt\src\stdenvp.c (127): my_application.exe!_setenvp + 0x27 bytes
f:\dd\vctools\crt_bld\self_64_amd64\crt\src\crt0.c (223): my_application.exe!__tmainCRTStartup + 0x5 bytes
f:\dd\vctools\crt_bld\self_64_amd64\crt\src\crt0.c (164): my_application.exe!mainCRTStartup
0x00000000FAF8167E (File and line number not available): KERNEL32.DLL!BaseThreadInitThunk + 0x1A bytes
0x00000000FD8CC3F1 (File and line number not available): ntdll.dll!RtlUserThreadStart + 0x21 bytes
Data:
D0 96 C0 52 50 00 00 00 C0 76 C0 52 50 00 00 00 ...RP... .v.RP...
20 91 DD E1 F6 07 00 00 7E 00 00 00 02 00 00 00 ........ ~.......
0D 00 00 00 00 00 00 00 2B 00 00 00 FD FD FD FD ........ +.......
54 45 4D 50 3D 46 3A 5C 54 45 4D 50 00 FD FD FD TEMP=F:\ TEMP....
FD ........ ........
Visual Leak Detector detected 48 memory leaks (6044 bytes).
Largest number used: 15094 bytes.
Total allocations: 25276 bytes.
Visual Leak Detector is now exiting.
网上没有太多关于此的详细信息,但是在这个msdn 论坛中,有一条评论说:
这并不是真正的“泄漏”,而是“准备执行环境”。它为期望它的程序制作进程环境的可写副本,并且它们将在进程退出时被释放。您可以放心地忽略该报告。
但是,我想阻止这些行出现在报告中(如果它们真的不是泄漏)
有没有人遇到过这种情况并且知道如何解决?