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_cdecl与_stdcall区别

2014-06-06 08:42 204 查看
_cdecl与_stdcall是最常用的的两种函数调用修饰，区别在于函数返回时，清理栈(恢复栈平衡)是caller做还是被调函数做。

4:    _cdecl int add1(int a, int b)
5:    {
00401020   push        ebp
00401021   mov         ebp,esp
00401023   sub         esp,40h
00401026   push        ebx
00401027   push        esi
00401028   push        edi
00401029   lea         edi,[ebp-40h]
0040102C   mov         ecx,10h
00401031   mov         eax,0CCCCCCCCh
00401036   rep stos    dword ptr [edi]
6:        return a+b;
00401038   mov         eax,dword ptr [ebp+8]
0040103B   add         eax,dword ptr [ebp+0Ch]
7:    }
0040103E   pop         edi
0040103F   pop         esi
00401040   pop         ebx
00401041   mov         esp,ebp
00401043   pop 　　　　 ebp
00401044   ret

9:    _stdcall int add2(int a, int b)
10:   {
00401060   push        ebp
00401061   mov         ebp,esp
00401063   sub         esp,40h
00401066   push        ebx
00401067   push        esi
00401068   push        edi
00401069   lea         edi,[ebp-40h]
0040106C   mov         ecx,10h
00401071   mov         eax,0CCCCCCCCh
00401076   rep stos    dword ptr [edi]
11:       return a+b;
00401078   mov         eax,dword ptr [ebp+8]
0040107B   add         eax,dword ptr [ebp+0Ch]
12:   }
0040107E   pop         edi
0040107F   pop         esi
00401080   pop         ebx
00401081   mov         esp,ebp
00401083   pop         ebp
45 00401084   ret         8
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