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December 30th, 2007, 11:16 PM
#5
Re: Member function parameter corruption ???
Well this is getting harsh. Now I'm getting corrupted variables on Release builds and NOT in Debug.
Compiler dissasembly on Debug (this is CORRECT):
Code:
extern "C" int main(int argc, char* argv[])
{
00411F70 push ebp
00411F71 mov ebp,esp
00411F73 sub esp,1A0h
00411F79 push ebx
00411F7A push esi
00411F7B push edi
00411F7C lea edi,[ebp-1A0h]
00411F82 mov ecx,68h
00411F87 mov eax,0CCCCCCCCh
00411F8C rep stos dword ptr es:[edi]
CGfxcore* gfxc = new CGfxcore();
00411F8E push 4
00411F90 call operator new (41150Ah)
00411F95 add esp,4
00411F98 mov dword ptr [ebp-18Ch],eax
00411F9E cmp dword ptr [ebp-18Ch],0
00411FA5 je SDL_main+4Ah (411FBAh)
00411FA7 mov ecx,dword ptr [ebp-18Ch]
00411FAD call CGfxcore::CGfxcore (4111F9h)
00411FB2 mov dword ptr [ebp-1A0h],eax
00411FB8 jmp SDL_main+54h (411FC4h)
00411FBA mov dword ptr [ebp-1A0h],0
00411FC4 mov eax,dword ptr [ebp-1A0h]
00411FCA mov dword ptr [ebp-198h],eax
00411FD0 mov ecx,dword ptr [ebp-198h]
00411FD6 mov dword ptr [gfxc],ecx
SDL_Event ev;
bool running = true;
00411FD9 mov byte ptr [running],1
atexit (SDL_Quit);
00411FDD push offset @ILT+60(_SDL_Quit) (411041h)
00411FE2 call @ILT+490(_atexit) (4111EFh)
00411FE7 add esp,4
if (!(gfxc->initialize(640,480,32)))
00411FEA push 20h
00411FEC push 1E0h
00411FF1 push 280h
00411FF6 mov ecx,dword ptr [gfxc]
00411FF9 call CGfxcore::initialize (41104Bh)
00411FFE movzx eax,al
00412001 test eax,eax
00412003 jne SDL_main+0F1h (412061h)
{
printf("Error initializing SDL\n");
00412005 mov esi,esp
00412007 push offset string "Error initializing SDL\n" (41E84Ch)
0041200C call dword ptr [__imp__printf (423584h)]
00412012 add esp,4
00412015 cmp esi,esp
00412017 call @ILT+1075(__RTC_CheckEsp) (411438h)
delete gfxc;
0041201C mov eax,dword ptr [gfxc]
0041201F mov dword ptr [ebp-174h],eax
00412025 mov ecx,dword ptr [ebp-174h]
0041202B mov dword ptr [ebp-180h],ecx
00412031 cmp dword ptr [ebp-180h],0
00412038 je SDL_main+0DFh (41204Fh)
0041203A push 1
0041203C mov ecx,dword ptr [ebp-180h]
00412042 call CGfxcore::`scalar deleting destructor' (411366h)
00412047 mov dword ptr [ebp-1A0h],eax
0041204D jmp SDL_main+0E9h (412059h)
0041204F mov dword ptr [ebp-1A0h],0
return -1;
00412059 or eax,0FFFFFFFFh
0041205C jmp SDL_main+2C0h (412230h)
}
CTerrain * tr = new CTerrain(384);
00412061 push 8
00412063 call operator new (41150Ah)
00412068 add esp,4
0041206B mov dword ptr [ebp-15Ch],eax
00412071 cmp dword ptr [ebp-15Ch],0
00412078 je SDL_main+122h (412092h)
0041207A push 180h
0041207F mov ecx,dword ptr [ebp-15Ch]
00412085 call CTerrain::CTerrain (411172h)
0041208A mov dword ptr [ebp-1A0h],eax
00412090 jmp SDL_main+12Ch (41209Ch)
00412092 mov dword ptr [ebp-1A0h],0
0041209C mov eax,dword ptr [ebp-1A0h]
004120A2 mov dword ptr [ebp-168h],eax
004120A8 mov ecx,dword ptr [ebp-168h]
004120AE mov dword ptr [tr],ecx
tr->generatePerlinNoise ( 1, 0.25 );
004120B1 sub esp,8
004120B4 fld qword ptr [__real@3fd0000000000000 (41E840h)]
004120BA fstp qword ptr [esp]
004120BD push 1
004120BF mov ecx,dword ptr [tr]
004120C2 call CTerrain::generatePerlinNoise (411564h)
Now ... Release build (total mess).
for example: argc -1414812757 ( !!!!!)
Code:
--- c:\documents and settings\hernan\mis documentos\visual studio 2008\projects\sdl1\sdl1\main.cpp
00401002 in al,dx
00401003 and esp,0FFFFFFC0h
00401006 sub esp,30h
00401009 push ebx
0040100A push ebp
0040100B push esi
0040100C push edi
CGfxcore* gfxc = new CGfxcore();
0040100D push 4
0040100F call operator new (4017D4h)
00401014 add esp,4
SDL_Event ev;
bool running = true;
atexit (SDL_Quit);
00401017 push offset SDL_Quit (401F7Eh)
0040101C mov ebp,eax
0040101E mov byte ptr [esp+27h],1
00401023 call atexit (4017B6h)
00401028 add esp,4
if (!(gfxc->initialize(640,480,32)))
0040102B push 100020h
00401030 call SDL_Init (401F6Ch)
00401035 add esp,4
00401038 test eax,eax
0040103A jne SDL_main+86h (401086h)
0040103C push 40000001h
00401041 push 20h
00401043 push 1E0h
00401048 push 280h
0040104D call SDL_SetVideoMode (401F72h)
00401052 add esp,10h
#endif
extern "C" int main(int argc, char* argv[])
{
CGfxcore* gfxc = new CGfxcore();
SDL_Event ev;
bool running = true;
atexit (SDL_Quit);
if (!(gfxc->initialize(640,480,32)))
{
printf("Error initializing SDL\n");
delete gfxc;
return -1;
}
CTerrain * tr = new CTerrain(384);
00401055 push 8
00401057 mov dword ptr [ebp],eax
0040105A call operator new (4017D4h)
0040105F mov esi,eax
00401061 xor ebx,ebx
00401063 add esp,4
00401066 cmp esi,ebx
00401068 je SDL_main+0C1h (4010C1h)
0040106A push 24000h
0040106F mov dword ptr [esi+4],180h
00401076 call operator new (4017D4h)
0040107B add esp,4
0040107E mov dword ptr [esi],eax
00401080 mov dword ptr [esp+28h],esi
00401084 jmp SDL_main+0C7h (4010C7h)
{
printf("Error initializing SDL\n");
00401086 push 403288h
0040108B call dword ptr [__imp__printf (4030F4h)]
00401091 add esp,4
delete gfxc;
00401094 test ebp,ebp
00401096 je SDL_main+0B6h (4010B6h)
00401098 mov eax,dword ptr [ebp]
0040109B test eax,eax
0040109D je SDL_main+0A8h (4010A8h)
0040109F push eax
004010A0 call SDL_FreeSurface (401F84h)
004010A5 add esp,4
004010A8 call SDL_Quit (401F7Eh)
004010AD push ebp
004010AE call operator delete (4017CEh)
004010B3 add esp,4
return -1;
004010B6 or eax,0FFFFFFFFh
while (running)
{
SDL_PollEvent(&ev);
if (ev.type == SDL_KEYDOWN)
if (ev.key.keysym.sym == SDLK_ESCAPE )
running = false;
//glClear(GL_COLOR_BUFFER_BIT);
SDL_Flip(gfxc->getSurface());
//SDL_GL_SwapBuffers();
}
delete gfxc;
delete tr;
return 0;
}
004010B9 pop edi
004010BA pop esi
004010BB pop ebp
004010BC pop ebx
004010BD mov esp,ebp
004010BF pop ebp
004010C0 ret
}
CTerrain * tr = new CTerrain(384);
004010C1 mov dword ptr [esp+28h],ebx
004010C5 mov esi,ebx
tr->generatePerlinNoise ( 1, 0.25 );
004010C7 fld qword ptr [__real@3fd0000000000000 (4032D0h)]
004010CD sub esp,8
004010D0 fstp qword ptr [esp]
004010D3 call CTerrain::generatePerlinNoise (4015B0h)
Maybe i'm getting problems with some optimizations by the compiler??
I will try to touch those settings are will post results.
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