continuosly calling the function from winelib failing - stack overflow
Hi I am able to successfully convert the windows dll into .so file and I am able to call the functions exported by dll from the winelib application. But if I call those functions from winelib application continuously for 1000 times , in a loop, then wine is crashing with the following error err:seh:setup_exception stack overflow 28 bytes in thread 0025 Then I tried calling the stub function itself in the loop (commented the code in stub function such that , it wont call the dll function ) Still I am getting the same error. Can any one faced this problem ? Can any one help on the same Thank you Regards aJAY
Ananth M wrote:
Hi I am able to successfully convert the windows dll into .so file and I am able to call the functions exported by dll from the winelib application. But if I call those functions from winelib application continuously for 1000 times , in a loop, then wine is crashing with the following error
err:seh:setup_exception stack overflow 28 bytes in thread 0025
Then I tried calling the stub function itself in the loop (commented the code in stub function such that , it wont call the dll function )
Still I am getting the same error.
Can any one faced this problem ?
Can any one help on the same
It seems that there is a mismatch between the stub's and the caller's idea of the stack usage. This mismatch accumulates over the loop until the stack overflows (or underflows). From your symptoms, the prime suspect would be a stdcall/cdecl mismatch, but more information is needed. Could you please post the declaration and the definition of your stub, and an example of how the caller is calling such function? Alex Villacís Lasso
Thank you for the responce I tried the following, Please let me know , if more details are required - Case 1: - Stub function is declared in XXXXX_dll.h as long __stdcall STUB_Add(long, long); -Stub function is defined in XXXXX_main.c as long __stdcall STUB_Add(long x, long y) { printf ("stub function is called \n"); return 0; } In one Application , I used LoadLibrary("XXXXX.dll.so") - to load the dll GetProcAddress("") - to get the function pointer and if I call the function continuously in a loop of for 1000 times, first 2 calls are success 3rd call is crashed In another application , I used dlopen() - to load the dll dlsym - to get the function pointer and if I call the function continuously in a loop of for 1000 times, then the I got a crash after 40 - 50 times - Case 2: - Stub function is declared in XXXXX_dll.h as long STUB_Add(long, long); -Stub function is defined in XXXXX_main.c as long STUB_Add(long x, long y) { printf ("stub function is called \n"); return 0; } The first Application (that uses LoadLibrary(), GetProcAddress ...) is executed without any crash. The Second application (that uses the dlopen, dlsym() ..) is giving the same results as in case 1. (i.e crashing after 40-50 times) On 12/23/05, Alex Villacís Lasso <a_villacis(a)palosanto.com> wrote:
Ananth M wrote:
Hi I am able to successfully convert the windows dll into .so file and I am able to call the functions exported by dll from the winelib application. But if I call those functions from winelib application continuously for 1000 times , in a loop, then wine is crashing with the following error
err:seh:setup_exception stack overflow 28 bytes in thread 0025
Then I tried calling the stub function itself in the loop (commented the code in stub function such that , it wont call the dll function )
Still I am getting the same error.
Can any one faced this problem ?
Can any one help on the same
It seems that there is a mismatch between the stub's and the caller's idea of the stack usage. This mismatch accumulates over the loop until the stack overflows (or underflows). From your symptoms, the prime suspect would be a stdcall/cdecl mismatch, but more information is needed. Could you please post the declaration and the definition of your stub, and an example of how the caller is calling such function?
Alex Villacís Lasso
Ananth M <mekaananth(a)gmail.com> wrote:
- Stub function is declared in XXXXX_dll.h as long __stdcall STUB_Add(long, long); -Stub function is defined in XXXXX_main.c as long __stdcall STUB_Add(long x, long y) { printf ("stub function is called \n"); return 0; }
In one Application , I used LoadLibrary("XXXXX.dll.so") - to load the dll GetProcAddress("") - to get the function pointer and if I call the function continuously in a loop of for 1000 times, first 2 calls are success 3rd call is crashed
How do you define a function pointer? Does it have proper number of arguments/ calling convention? If it looks OK to you but still crashes, perhaps you could create a sample project which shows the problem and post an url for it here? -- Dmitry.
Hi All Thank you for the responce I am able to solve the problem and the problem is due to the calling convention . Thank you all once again On 12/26/05, Dmitry Timoshkov <dmitry(a)baikal.ru> wrote:
Ananth M <mekaananth(a)gmail.com> wrote:
- Stub function is declared in XXXXX_dll.h as long __stdcall STUB_Add(long, long); -Stub function is defined in XXXXX_main.c as long __stdcall STUB_Add(long x, long y) { printf ("stub function is called \n"); return 0; }
In one Application , I used LoadLibrary("XXXXX.dll.so") - to load the dll GetProcAddress("") - to get the function pointer and if I call the function continuously in a loop of for 1000 times, first 2 calls are success 3rd call is crashed
How do you define a function pointer? Does it have proper number of arguments/ calling convention? If it looks OK to you but still crashes, perhaps you could create a sample project which shows the problem and post an url for it here?
-- Dmitry.
participants (3)
-
Alex Villacís Lasso -
Ananth M -
Dmitry Timoshkov