先分析一个例子
#include<stdio.h>
class CFurniture
{
public:
CFurniture()
{
m_nPrice = 0;
}
virtual ~CFurniture()
{
printf("virtual ~CFurniture()\n");
}
virtual int GetPrice()
{
return m_nPrice;
}
public:
int m_nPrice;
};
class CSofa : virtual public CFurniture
{
public:
CSofa()
{
m_nPrice = 1;
m_nColor = 2;
}
virtual ~CSofa()
{
printf("virtual ~CSofa()\n");
}
virtual int GeyColor()
{
return m_nColor;
}
virtual int SitDown()
{
return printf("Sit down and rest your legs\n");
}
public:
int m_nColor;
};
class CBed : virtual public CFurniture
{
public:
CBed()
{
m_nPrice = 3;
m_nLength = 2;
m_nWidth = 1;
}
~CBed()
{
printf("virtual ~CBed()\n");
}
virtual int GetArea()
{
return m_nLength * m_nWidth;
}
virtual int Sleep()
{
return printf("go to sleep!\n");
}
public:
int m_nLength;
int m_nWidth;
};
class CSofaBed : public CSofa , public CBed
{
public:
CSofaBed()
{
m_nHeight = 6;
}
virtual ~CSofaBed()
{
printf("virtual ~CSofaBed\n");
}
virtual int SitDown()
{
return printf("Sit Down on the sofa bed\n");
}
virtual int Sleep()
{
return printf("go to sleep on the sofa bed\n");
}
virtual int GetHeight()
{
return m_nHeight;
}
virtual void Show()
{
printf("CSofaBed Show()\n");
}
public:
int m_nHeight;
};
int main()
{
CSofaBed SofaBed;
CFurniture * pFurniture = &SofaBed;
CSofa * pSofa = &SofaBed;
CBed * pBed = &SofaBed;
pFurniture->m_nPrice = 88;
pSofa->m_nColor = 8;
pSofa->m_nPrice = 90;
pBed->m_nLength = 13;
pBed->m_nWidth = 66;
SofaBed.m_nHeight = 45;
SofaBed.Show();
return 0;
}
下面是反汇编分析包括内存截取
1: #include<stdio.h>
2: class CFurniture
3: {
4: public:
5: CFurniture()
004021D0 push ebp
004021D1 mov ebp,esp
004021D3 sub esp,44h
004021D6 push ebx
004021D7 push esi
004021D8 push edi
004021D9 push ecx
004021DA lea edi,[ebp-44h]
004021DD mov ecx,11h
004021E2 mov eax,0CCCCCCCCh
004021E7 rep stos dword ptr [edi]
004021E9 pop ecx
004021EA mov dword ptr [ebp-4],ecx
004021ED mov eax,dword ptr [ebp-4]
004021F0 mov dword ptr [eax],offset CFurniture::`vftable' (0042611c)
6: {
7: m_nPrice = 0;
004021F6 mov ecx,dword ptr [ebp-4]
004021F9 mov dword ptr [ecx+4],0
8: }
00402200 mov eax,dword ptr [ebp-4]
00402203 pop edi
00402204 pop esi
00402205 pop ebx
00402206 mov esp,ebp
00402208 pop ebp
00402209 ret
9: virtual ~CFurniture()
10: {
00402220 push ebp
00402221 mov ebp,esp
00402223 sub esp,44h
00402226 push ebx
00402227 push esi
00402228 push edi
00402229 push ecx
0040222A lea edi,[ebp-44h]
0040222D mov ecx,11h
00402232 mov eax,0CCCCCCCCh
00402237 rep stos dword ptr [edi]
00402239 pop ecx
0040223A mov dword ptr [ebp-4],ecx
0040223D mov eax,dword ptr [ebp-4]
00402240 mov dword ptr [eax],offset CFurniture::`vftable' (0042611c)
11: printf("virtual ~CFurniture()\n");
00402246 push offset string "virtual ~CFurniture()\n" (00426128)
0040224B call printf (00403020)
00402250 add esp,4
12: }
00402253 pop edi
00402254 pop esi
00402255 pop ebx
00402256 add esp,44h
00402259 cmp ebp,esp
0040225B call __chkesp (00402ef0)
00402260 mov esp,ebp
00402262 pop ebp
00402263 ret
13: virtual int GetPrice()
14: {
00402280 push ebp
00402281 mov ebp,esp
00402283 sub esp,44h
00402286 push ebx
00402287 push esi
00402288 push edi
00402289 push ecx
0040228A lea edi,[ebp-44h]
0040228D mov ecx,11h
00402292 mov eax,0CCCCCCCCh
00402297 rep stos dword ptr [edi]
00402299 pop ecx
0040229A mov dword ptr [ebp-4],ecx
15: return m_nPrice;
0040229D mov eax,dword ptr [ebp-4]
004022A0 mov eax,dword ptr [eax+4]
16: }
004022A3 pop edi
004022A4 pop esi
004022A5 pop ebx
004022A6 mov esp,ebp
004022A8 pop ebp
004022A9 ret
17: protected:
18: int m_nPrice;
19: };
20: class CSofa : virtual public CFurniture
21: {
22: public:
23: CSofa()
00402330 push ebp
00402331 mov ebp,esp
00402333 sub esp,48h
00402336 push ebx
00402337 push esi
00402338 push edi
00402339 push ecx
0040233A lea edi,[ebp-48h]
0040233D mov ecx,12h
00402342 mov eax,0CCCCCCCCh
00402347 rep stos dword ptr [edi]
00402349 pop ecx
0040234A mov dword ptr [ebp-4],ecx
0040234D mov dword ptr [ebp-8],0
00402354 cmp dword ptr [ebp+8],0
00402358 je CSofa::CSofa+48h (00402378)
0040235A mov eax,dword ptr [ebp-4]
0040235D mov dword ptr [eax+4],offset CSofa::`vbtable' (0042615c)
00402364 mov ecx,dword ptr [ebp-4]
00402367 add ecx,0Ch
0040236A call @ILT+120(CFurniture::CFurniture) (0040107d) 跳过调用父类构造函数
0040236F mov ecx,dword ptr [ebp-8]
00402372 or ecx,1
00402375 mov dword ptr [ebp-8],ecx
00402378 mov edx,dword ptr [ebp-4]
0040237B mov dword ptr [edx],offset CSofa::`vftable' (00426150)
00402381 mov eax,dword ptr [ebp-4]
00402384 mov ecx,dword ptr [eax+4]
00402387 mov edx,dword ptr [ecx+4]
0040238A mov eax,dword ptr [ebp-4]
0040238D mov dword ptr [eax+edx+4],offset CSofa::`vftable' (00426144)
24: {
25: m_nPrice = 1;
00402395 mov ecx,dword ptr [ebp-4]
00402398 mov edx,dword ptr [ecx+4]
0040239B mov eax,dword ptr [edx+4]
0040239E mov ecx,dword ptr [ebp-4]
004023A1 mov dword ptr [ecx+eax+8],1
26: m_nColor = 2;
004023A9 mov edx,dword ptr [ebp-4]
004023AC mov dword ptr [edx+8],2
27: }
004023B3 mov eax,dword ptr [ebp-4]
004023B6 pop edi
004023B7 pop esi
004023B8 pop ebx
004023B9 add esp,48h
004023BC cmp ebp,esp
004023BE call __chkesp (00402ef0)
004023C3 mov esp,ebp
004023C5 pop ebp
004023C6 ret 4
28: virtual ~CSofa()
29: {
004023F0 push ebp
004023F1 mov ebp,esp
004023F3 sub esp,44h
004023F6 push ebx
004023F7 push esi
004023F8 push edi
004023F9 push ecx
004023FA lea edi,[ebp-44h]
004023FD mov ecx,11h
00402402 mov eax,0CCCCCCCCh
00402407 rep stos dword ptr [edi]
00402409 pop ecx
0040240A mov dword ptr [ebp-4],ecx
0040240D mov eax,dword ptr [ebp-4]
00402410 mov dword ptr [eax-0Ch],offset CSofa::`vftable' (00426150)
00402417 mov ecx,dword ptr [ebp-4]
0040241A mov edx,dword ptr [ecx-8]
0040241D mov eax,dword ptr [edx+4]
00402420 mov ecx,dword ptr [ebp-4]
00402423 mov dword ptr [ecx+eax-8],offset CSofa::`vftable' (00426144)
30: printf("virtual ~CSofa()\n");
0040242B push offset string "virtual ~CSofa()\n" (00426168)
00402430 call printf (00403020)
00402435 add esp,4
31: }
00402438 pop edi
00402439 pop esi
0040243A pop ebx
0040243B add esp,44h
0040243E cmp ebp,esp
00402440 call __chkesp (00402ef0)
00402445 mov esp,ebp
00402447 pop ebp
00402448 ret
32: virtual int GeyColor()
33: {
00402460 push ebp
00402461 mov ebp,esp
00402463 sub esp,44h
00402466 push ebx
00402467 push esi
00402468 push edi
00402469 push ecx
0040246A lea edi,[ebp-44h]
0040246D mov ecx,11h
00402472 mov eax,0CCCCCCCCh
00402477 rep stos dword ptr [edi]
00402479 pop ecx
0040247A mov dword ptr [ebp-4],ecx
34: return m_nColor;
0040247D mov eax,dword ptr [ebp-4]
00402480 mov eax,dword ptr [eax+8]
35: }
00402483 pop edi
00402484 pop esi
00402485 pop ebx
00402486 mov esp,ebp
00402488 pop ebp
00402489 ret
36: virtual int SitDown()
37: {
004024A0 push ebp
004024A1 mov ebp,esp
004024A3 sub esp,44h
004024A6 push ebx
004024A7 push esi
004024A8 push edi
004024A9 push ecx
004024AA lea edi,[ebp-44h]
004024AD mov ecx,11h
004024B2 mov eax,0CCCCCCCCh
004024B7 rep stos dword ptr [edi]
004024B9 pop ecx
004024BA mov dword ptr [ebp-4],ecx
38: return printf("Sit down and rest your legs\n");
004024BD push offset string "Sit down and rest your legs\n" (00426180)
004024C2 call printf (00403020)
004024C7 add esp,4
39: }
004024CA pop edi
004024CB pop esi
004024CC pop ebx
004024CD add esp,44h
004024D0 cmp ebp,esp
004024D2 call __chkesp (00402ef0)
004024D7 mov esp,ebp
004024D9 pop ebp
004024DA ret
40: protected:
41: int m_nColor;
42: };
43: class CBed : virtual public CFurniture
44: {
45: public:
46: CBed()
004025C0 push ebp
004025C1 mov ebp,esp
004025C3 sub esp,48h
004025C6 push ebx
004025C7 push esi
004025C8 push edi
004025C9 push ecx
004025CA lea edi,[ebp-48h]
004025CD mov ecx,12h
004025D2 mov eax,0CCCCCCCCh
004025D7 rep stos dword ptr [edi]
004025D9 pop ecx
004025DA mov dword ptr [ebp-4],ecx
004025DD mov dword ptr [ebp-8],0
004025E4 cmp dword ptr [ebp+8],0
004025E8 je CBed::CBed+48h (00402608)
004025EA mov eax,dword ptr [ebp-4]
004025ED mov dword ptr [eax+4],offset CBed::`vbtable' (004261bc)
004025F4 mov ecx,dword ptr [ebp-4]
004025F7 add ecx,10h
004025FA call @ILT+120(CFurniture::CFurniture) (0040107d)
004025FF mov ecx,dword ptr [ebp-8]
00402602 or ecx,1
00402605 mov dword ptr [ebp-8],ecx
00402608 mov edx,dword ptr [ebp-4]
0040260B mov dword ptr [edx],offset CBed::`vftable' (004261b0)
00402611 mov eax,dword ptr [ebp-4]
00402614 mov ecx,dword ptr [eax+4]
00402617 mov edx,dword ptr [ecx+4]
0040261A mov eax,dword ptr [ebp-4]
0040261D mov dword ptr [eax+edx+4],offset CBed::`vftable' (004261a4)
47: {
48: m_nPrice = 3;
00402625 mov ecx,dword ptr [ebp-4]
00402628 mov edx,dword ptr [ecx+4]
0040262B mov eax,dword ptr [edx+4]
0040262E mov ecx,dword ptr [ebp-4]
00402631 mov dword ptr [ecx+eax+8],3
49: m_nLength = 2;
00402639 mov edx,dword ptr [ebp-4]
0040263C mov dword ptr [edx+8],2
50: m_nWidth = 1;
00402643 mov eax,dword ptr [ebp-4]
00402646 mov dword ptr [eax+0Ch],1
51: }
0040264D mov eax,dword ptr [ebp-4]
00402650 pop edi
00402651 pop esi
00402652 pop ebx
00402653 add esp,48h
00402656 cmp ebp,esp
00402658 call __chkesp (00402ef0)
0040265D mov esp,ebp
0040265F pop ebp
00402660 ret 4
52: ~CBed()
53: {
004027F0 push ebp
004027F1 mov ebp,esp
004027F3 sub esp,44h
004027F6 push ebx
004027F7 push esi
004027F8 push edi
004027F9 push ecx
004027FA lea edi,[ebp-44h]
004027FD mov ecx,11h
00402802 mov eax,0CCCCCCCCh
00402807 rep stos dword ptr [edi]
00402809 pop ecx
0040280A mov dword ptr [ebp-4],ecx
0040280D mov eax,dword ptr [ebp-4]
00402810 mov dword ptr [eax-10h],offset CBed::`vftable' (004261b0)
00402817 mov ecx,dword ptr [ebp-4]
0040281A mov edx,dword ptr [ecx-0Ch]
0040281D mov eax,dword ptr [edx+4]
00402820 mov ecx,dword ptr [ebp-4]
00402823 mov dword ptr [ecx+eax-0Ch],offset CBed::`vftable' (004261a4)
54: printf("virtual ~CBed()\n");
0040282B push offset string "virtual ~CBed()\n" (004261d8)
00402830 call printf (00403020)
00402835 add esp,4
55: }
00402838 pop edi
00402839 pop esi
0040283A pop ebx
0040283B add esp,44h
0040283E cmp ebp,esp
00402840 call __chkesp (00402ef0)
00402845 mov esp,ebp
00402847 pop ebp
00402848 ret
64: protected:
65: int m_nLength;
66: int m_nWidth;
67: };
68: class CSofaBed : public CSofa , public CBed
69: {
70: public:
71: CSofaBed()
004020B0 push ebp
004020B1 mov ebp,esp
004020B3 push 0FFh
004020B5 push offset __ehhandler$??0CSofaBed@@QAE@XZ (00414d86)
004020BA mov eax,fs:[00000000]
004020C0 push eax
004020C1 mov dword ptr fs:[0],esp
004020C8 sub esp,48h
004020CB push ebx
004020CC push esi
004020CD push edi
004020CE push ecx
004020CF lea edi,[ebp-54h]
004020D2 mov ecx,12h
004020D7 mov eax,0CCCCCCCCh
004020DC rep stos dword ptr [edi]
004020DE pop ecx
004020DF mov dword ptr [ebp-10h],ecx
004020E2 mov dword ptr [ebp-14h],0
004020E9 cmp dword ptr [ebp+8],0
004020ED je CSofaBed::CSofaBed+6Eh (0040211e)
004020EF mov eax,dword ptr [ebp-10h]
004020F2 mov dword ptr [eax+4],offset CSofaBed::`vbtable' (00426110)
004020F9 mov ecx,dword ptr [ebp-10h]
004020FC mov dword ptr [ecx+10h],offset CSofaBed::`vbtable' (00426104)
00402103 mov ecx,dword ptr [ebp-10h]
00402106 add ecx,20h
00402109 call @ILT+120(CFurniture::CFurniture) (0040107d)
0040210E mov edx,dword ptr [ebp-14h]
00402111 or edx,1
00402114 mov dword ptr [ebp-14h],edx
00402117 mov dword ptr [ebp-4],0
0040211E push 0
00402120 mov ecx,dword ptr [ebp-10h]
00402123 call @ILT+245(CSofa::CSofa) (004010fa)
00402128 mov dword ptr [ebp-4],1
0040212F push 0
00402131 mov ecx,dword ptr [ebp-10h]
00402134 add ecx,0Ch
00402137 call @ILT+285(CBed::CBed) (00401122)
0040213C mov eax,dword ptr [ebp-10h]
0040213F mov dword ptr [eax],offset CSofaBed::`vftable' (004260f4)
00402145 mov ecx,dword ptr [ebp-10h]
00402148 mov dword ptr [ecx+0Ch],offset CSofaBed::`vftable' (004260e8)
0040214F mov edx,dword ptr [ebp-10h]
00402152 mov eax,dword ptr [edx+4]
00402155 mov ecx,dword ptr [eax+4]
00402158 mov edx,dword ptr [ebp-10h]
0040215B mov dword ptr [edx+ecx+4],offset CSofaBed::`vftable' (004260dc)
72: {
73: m_nHeight = 6;
00402163 mov eax,dword ptr [ebp-10h]
00402166 mov dword ptr [eax+1Ch],6
74: }
0040216D mov dword ptr [ebp-4],0FFFFFFFFh
00402174 mov eax,dword ptr [ebp-10h]
00402177 mov ecx,dword ptr [ebp-0Ch]
0040217A mov dword ptr fs:[0],ecx
00402181 pop edi
00402182 pop esi
00402183 pop ebx
00402184 add esp,54h
00402187 cmp ebp,esp
00402189 call __chkesp (00402ef0)
0040218E mov esp,ebp
00402190 pop ebp
00402191 ret 4
75: virtual ~CSofaBed()
76: {
00402A10 push ebp
00402A11 mov ebp,esp
00402A13 push 0FFh
00402A15 push offset __ehhandler$??1CSofaBed@@UAE@XZ (00414dac)
00402A1A mov eax,fs:[00000000]
00402A20 push eax
00402A21 mov dword ptr fs:[0],esp
00402A28 sub esp,48h
00402A2B push ebx
00402A2C push esi
00402A2D push edi
00402A2E push ecx
00402A2F lea edi,[ebp-54h]
00402A32 mov ecx,12h
00402A37 mov eax,0CCCCCCCCh
00402A3C rep stos dword ptr [edi]
00402A3E pop ecx
00402A3F mov dword ptr [ebp-10h],ecx
00402A42 mov eax,dword ptr [ebp-10h]
00402A45 mov dword ptr [eax-20h],offset CSofaBed::`vftable' (004260f4)
00402A4C mov ecx,dword ptr [ebp-10h]
00402A4F mov dword ptr [ecx-14h],offset CSofaBed::`vftable' (004260e8)
00402A56 mov edx,dword ptr [ebp-10h]
00402A59 mov eax,dword ptr [edx-1Ch]
00402A5C mov ecx,dword ptr [eax+4]
00402A5F mov edx,dword ptr [ebp-10h]
00402A62 mov dword ptr [edx+ecx-1Ch],offset CSofaBed::`vftable' (004260dc)
00402A6A mov dword ptr [ebp-4],0
77: printf("virtual ~CSofaBed\n");
00402A71 push offset string "virtual ~CSofaBed\n" (00426230)
00402A76 call printf (00403020)
00402A7B add esp,4
78: }
00402A7E mov eax,dword ptr [ebp-10h]
00402A81 sub eax,20h
00402A84 test eax,eax
00402A86 je CSofaBed::~CSofaBed+83h (00402a93)
00402A88 mov ecx,dword ptr [ebp-10h]
00402A8B sub ecx,14h
00402A8E mov dword ptr [ebp-14h],ecx
00402A91 jmp CSofaBed::~CSofaBed+8Ah (00402a9a)
00402A93 mov dword ptr [ebp-14h],0
00402A9A mov ecx,dword ptr [ebp-14h]
00402A9D add ecx,10h
00402AA0 call @ILT+205(CBed::~CBed) (004010d2)
00402AA5 mov dword ptr [ebp-4],0FFFFFFFFh
00402AAC mov ecx,dword ptr [ebp-10h]
00402AAF sub ecx,14h
00402AB2 call @ILT+280(CSofa::~CSofa) (0040111d)
00402AB7 mov ecx,dword ptr [ebp-0Ch]
00402ABA mov dword ptr fs:[0],ecx
00402AC1 pop edi
00402AC2 pop esi
00402AC3 pop ebx
00402AC4 add esp,54h
00402AC7 cmp ebp,esp
00402AC9 call __chkesp (00402ef0)
00402ACE mov esp,ebp
00402AD0 pop ebp
00402AD1 ret
79: virtual int SitDown()
80: {
00402860 push ebp
00402861 mov ebp,esp
00402863 sub esp,44h
00402866 push ebx
00402867 push esi
00402868 push edi
00402869 push ecx
0040286A lea edi,[ebp-44h]
0040286D mov ecx,11h
00402872 mov eax,0CCCCCCCCh
00402877 rep stos dword ptr [edi]
00402879 pop ecx
0040287A mov dword ptr [ebp-4],ecx
81: return printf("Sit Down on the sofa bed\n");
0040287D push offset string "Sit Down on the sofa bed\n" (004261ec)
00402882 call printf (00403020)
00402887 add esp,4
82: }
0040288A pop edi
0040288B pop esi
0040288C pop ebx
0040288D add esp,44h
00402890 cmp ebp,esp
00402892 call __chkesp (00402ef0)
00402897 mov esp,ebp
00402899 pop ebp
0040289A ret
83: virtual int Sleep()
84: {
004028B0 push ebp
004028B1 mov ebp,esp
004028B3 sub esp,44h
004028B6 push ebx
004028B7 push esi
004028B8 push edi
004028B9 push ecx
004028BA lea edi,[ebp-44h]
004028BD mov ecx,11h
004028C2 mov eax,0CCCCCCCCh
004028C7 rep stos dword ptr [edi]
004028C9 pop ecx
004028CA mov dword ptr [ebp-4],ecx
85: return printf("go to sleep on the sofa bed\n");
004028CD push offset string "go to sleep on the sofa bed\n" (0042620c)
004028D2 call printf (00403020)
004028D7 add esp,4
86: }
004028DA pop edi
004028DB pop esi
004028DC pop ebx
004028DD add esp,44h
004028E0 cmp ebp,esp
004028E2 call __chkesp (00402ef0)
004028E7 mov esp,ebp
004028E9 pop ebp
004028EA ret
87: virtual int GetHeight()
88: {
00402900 push ebp
00402901 mov ebp,esp
00402903 sub esp,44h
00402906 push ebx
00402907 push esi
00402908 push edi
00402909 push ecx
0040290A lea edi,[ebp-44h]
0040290D mov ecx,11h
00402912 mov eax,0CCCCCCCCh
00402917 rep stos dword ptr [edi]
00402919 pop ecx
0040291A mov dword ptr [ebp-4],ecx
89: return m_nHeight;
0040291D mov eax,dword ptr [ebp-4]
00402920 mov eax,dword ptr [eax+1Ch]
90: }
00402923 pop edi
00402924 pop esi
00402925 pop ebx
00402926 mov esp,ebp
00402928 pop ebp
00402929 ret
91: protected:
92: int m_nHeight;
93: };
94:
95: int main()
96: {
004105F0 push ebp
004105F1 mov ebp,esp
004105F3 sub esp,80h
004105F9 push ebx
004105FA push esi
004105FB push edi
004105FC lea edi,[ebp-80h]
004105FF mov ecx,20h
00410604 mov eax,0CCCCCCCCh
00410609 rep stos dword ptr [edi]
97: CSofaBed SofaBed;
0041060B push 1 构造标志,构造祖父类
0041060D lea ecx,[ebp-28h]
00410610 call @ILT+25(CSofaBed::CSofaBed) (0040101e)
98: CFurniture * pFurniture = &SofaBed;
00410615 lea eax,[ebp-28h] EAX = 0018FF20
00410618 test eax,eax
0041061A jne main+35h (00410625)
0041061C mov dword ptr [ebp-3Ch],0
00410623 jmp main+42h (00410632)
00410625 mov ecx,dword ptr [ebp-24h] ECX = 00426110
00410628 mov edx,dword ptr [ecx+4] [ecx+4] = 2
0041062B lea eax,[ebp+edx-24h]
0041062F mov dword ptr [ebp-3Ch],eax
00410632 mov ecx,dword ptr [ebp-3Ch]
00410635 mov dword ptr [ebp-2Ch],ecx
99: CSofa * pSofa = &SofaBed;
00410638 lea edx,[ebp-28h]
0041063B mov dword ptr [ebp-30h],edx
100: CBed * pBed = &SofaBed;
0041063E lea eax,[ebp-28h]
00410641 test eax,eax
00410643 je main+5Dh (0041064d)
00410645 lea ecx,[ebp-1Ch] ECX = 0018FF2C
00410648 mov dword ptr [ebp-40h],ecx
0041064B jmp main+64h (00410654)
0041064D mov dword ptr [ebp-40h],0
00410654 mov edx,dword ptr [ebp-40h] EDX = 0018FF2C
00410657 mov dword ptr [ebp-34h],edx E8 60 42 00
101: return 0;
0041065A mov dword ptr [ebp-38h],0
00410661 lea ecx,[ebp-28h]
00410664 call @ILT+40(CSofaBed::`vbase destructor') (0040102d)
00410669 mov eax,dword ptr [ebp-38h]
102: }
0041066C pop edi
0041066D pop esi
0041066E pop ebx
0041066F add esp,80h
00410675 cmp ebp,esp
00410677 call __chkesp (00402ef0)
0041067C mov esp,ebp
0041067E pop ebp
0041067F ret
CSof<pre name="code" class="plain">下面是内存结构分析 对应一条或几条汇编代码
EAX = 0018FF20
0018FF20 F4 60 42 00 10 61 42 00 02 00 00 鬬B..aB....
0018FF2B 00 E8 60 42 00 04 61 42 00 02 00 .鑐B..aB...
0018FF36 00 00 01 00 00 00 06 00 00 00 DC ...........
00410625 mov ecx,dword ptr [ebp-24h]
ECX = 00426110
00426105 FF FF FF 10 00 00 00 00 00 00 00 ...........
00426110 FC FF FF FF 1C 00 00 00 00 00 00 ...........
0042611B 00 EB 10 40 00 F0 10 40 00 00 00 ...@...@...
00426126 00 00 76 69 72 74 75 61 6C 20 7E ..virtual ~
00426131 43 46 75 72 6E 69 74 75 72 65 28 CFurniture(
0042613C 29 0A 00 00 00 00 00 00 9B 10 40 ).........@
00426147 00 F0 10 40 00 00 00 00 00 8C 10 ...@.......
00426152 40 00 41 10 40 00 00 00 00 00 FC @.A.@......
0042615D FF FF FF 08 00 00 00 00 00 00 00 ...........
00426168 76 69 72 74 75 61 6C 20 7E 43 53 virtual ~CS
00426173 6F 66 61 28 29 0A 00 00 00 00 00 ofa()......
0042617E 00 00 53 69 74 20 64 6F 77 6E 20 ..Sit down
00426189 61 6E 64 20 72 65 73 74 20 79 6F and rest yo
00426194 75 72 20 6C 65 67 73 0A 00 00 00 ur legs....
0042619F 00 00 00 00 00 0E 11 40 00 F0 10 .......@...
004261AA 40 00 00 00 00 00 CD 10 40 00 D7 @.......@..
004261B5 10 40 00 00 00 00 00 FC FF FF FF .@.........
004261C0 0C 00 00 00 00 00 00 00 67 6F 20 ........go
004261CB 74 6F 20 73 6C 65 65 70 21 0A 00 to sleep!..
004261D6 00 00 76 69 72 74 75 61 6C 20 7E ..virtual ~
004261E1 43 42 65 64 28 29 0A 00 00 00 00 CBed().....
004261EC 53 69 74 20 44 6F 77 6E 20 6F 6E Sit Down on
004261F7 20 74 68 65 20 73 6F 66 61 20 62 the sofa b
00426202 65 64 0A 00 00 00 00 00 00 00 67 ed........g
0042620D 6F 20 74 6F 20 73 6C 65 65 70 20 o to sleep
00426218 6F 6E 20 74 68 65 20 73 6F 66 61 on the sofa
00426223 20 62 65 64 0A 00 00 00 00 00 00 bed.......
0042622E 00 00 76 69 72 74 75 61 6C 20 7E ..virtual ~
00426239 43 53 6F 66 61 42 65 64 0A 00 00 CSofaBed...
00426244 00 00 00 00 69 33 38 36 5C 63 68 ....i386\ch
0042624F 6B 65 73 70 2E 63 00 00 00 00 00 kesp.c.....
0042625A 00 00 54 68 65 20 76 61 6C 75 65 ..The value
00426265 20 6F 66 20 45 53 50 20 77 61 73 of ESP was
00426270 20 6E 6F 74 20 70 72 6F 70 65 72 not proper
0042627B 6C 79 20 73 61 76 65 64 20 61 63 ly saved ac
00426286 72 6F 73 73 20 61 20 66 75 6E 63 ross a func
00426291 74 69 6F 6E 20 63 61 6C 6C 2E 20 tion call.
0042629C 20 54 68 69 73 20 69 73 20 75 73 This is us
004262A7 75 61 6C 6C 79 20 61 20 72 65 73 ually a res
004262B2 75 6C 74 20 6F 66 20 63 61 6C 6C ult of call
004262BD 69 6E 67 20 61 20 66 75 6E 63 74 ing a funct
004262C8 69 6F 6E 20 64 65 63 6C 61 72 65 ion declare
004262D3 64 20 77 69 74 68 20 6F 6E 65 20 d with one
004262DE 63 61 6C 6C 69 6E 67 20 63 6F 6E calling con
004262E9 76 65 6E 74 69 6F 6E 20 77 69 74 vention wit
004262F4 68 20 61 20 66 75 6E 63 74 69 6F h a functio
004262FF 6E 20 70 6F 69 6E 74 65 72 20 64 n pointer d
0042630A 65 63 6C 61 72 65 64 20 77 69 74 eclared wit
00426315 68 20 61 20 64 69 66 66 65 72 65 h a differe
00426320 6E 74 20 63 61 6C 6C 69 6E 67 20 nt calling
0042632B 63 6F 6E 76 65 6E 74 69 6F 6E 2E convention.
00426336 20 00 70 72 69 6E 74 66 2E 63 00 .printf.c.
00426341 00 00 00 66 6F 72 6D 61 74 20 21 ...format !
0042634C 3D 20 4E 55 4C 4C 00 00 64 62 67 = NULL..dbg
00426357 64 65 6C 2E 63 70 70 00 00 5F 42 del.cpp.._B
00426362 4C 4F 43 4B 5F 54 59 50 45 5F 49 LOCK_TYPE_I
0042636D 53 5F 56 41 4C 49 44 28 70 48 65 S_VALID(pHe
00426378 61 64 2D 3E 6E 42 6C 6F 63 6B 55 ad->nBlockU
00426383 73 65 29 00 00 FF FF FF FF 38 32 se)......82
0042638E 40 00 53 32 40 00 00 00 00 00 FF @.S2@......
00426399 FF FF FF D9 38 40 00 E6 38 40 00 ....8@..8@.
004263A4 00 00 00 00 FF FF FF FF 00 00 00 ...........
004263AF 00 03 3B 40 00 00 00 00 00 C4 3A ..;@......:
004263BA 40 00 D1 3A 40 00 FF FF FF FF 2C @..:@.....,
004263C5 3E 40 00 32 3E 40 00 00 00 00 00 >@.2>@.....
004263D0 FF FF FF FF AE 3E 40 00 BD 3E 40 .....>@..>@
0018FF1C CC CC CC CC F4 60 42 00 10 61 42 烫烫鬬B..aB ebp-24h 00426110
0018FF27 00 02 00 00 00 E8 60 42 00 04 61 .....鑐B..a
0018FF32 42 00 02 00 00 00 01 00 00 00 06 B..........
0018FF3D 00 00 00 DC 60 42 00 03 00 00 00 ...躟B.....
0018FF48 88 FF 18 00 29 32 40 00 01 00 00 ....)2@....
0018FF53 00 A8 19 52 00 20 1A 52 00 00 00 ...R. .R...
0018FF5E 00 00 00 00 00 00 00 E0 FD 7E 00 .......帻~.
0018FF69 00 00 00 00 00 00 00 5C FF 18 00 .......\...
0018FF74 00 00 00 00 C4 FF 18 00 70 8E 40 ........p嶡
0018FF7F 00 88 63 42 00 00 00 00 00 94 FF .坈B.......
0018FF8A 18 00 CA 33 3E 75 00 E0 FD 7E D4 ...3>u.帻~.
0018FF95 FF 18 00 D2 9E 4E 77 00 E0 FD 7E ...覟Nw.帻~
0018FFA0 0E 75 4A 77 00 00 00 00 00 00 00 .uJw.......
0018FFAB 00 00 E0 FD 7E 00 00 00 00 00 00 ..帻~......
0018FFB6 00 00 00 00 00 00 A0 FF 18 00 00 ...........
0018FFC1 00 00 00 FF FF FF FF CD 1E 52 77 .........Rw
0018FFCC FA 4F 1F 00 00 00 00 00 EC FF 18 鶲.........
0018FFD7 00 A5 9E 4E 77 40 31 40 00 00 E0 .Nw@1@...
0018FFE2 FD 7E 00 00 00 00 00 00 00 00 00 齸.........
0018FFED 00 00 00 00 00 00 00 40 31 40 00 .......@1@.
0018FFF8 00 E0 FD 7E 00 00 00 00 41 63 74 .帻~....Act
00190003 78 20 00 00 00 01 00 00 00 0C 33 x ........3
0019000E 00 00 DC 00 00 00 00 00 00 00 20 ..........
00426109 00 00 00 00 00 00 00 FC FF FF FF ...........
00426114 1C 00 00 00 00 00 00 00 EB 10 40 ..........@
0042611F 00 F0 10 40 00 00 00 00 00 76 69 ...@.....vi
00410625 mov ecx,dword ptr [ebp-24h]
00410628 mov edx,dword ptr [ecx+4] edx = 1ch [ecx+4]是取其中内容
0018FF24 10 61 42 00 02 00 00 00 E8 60 42 .aB.....鑐B
0018FF2F 00 04 61 42 00 02 00 00 00 01 00 ..aB.......
0018FF3A 00 00 06 00 00 00 DC 60 42 00 03 ......躟B.. 祖父类首地址004260dc
0018FF45 00 00 00 88 FF 18 00 29 32 40 00 .......)2@.
0018FF50 01 00 00 00 A8 19 52 00 20 1A 52 ......R. .R
0041062B lea eax,[ebp+edx-24h] EAX = 0018FF40 是取[ebp+edx-24h]内容所在地址,即是
??_7CSofaBed@@6BCFurniture@@@:
004260DC xor dl,byte ptr [eax]
004260DE inc eax
004260DF add al,dh
004260E1 adc byte ptr [eax],al
004260E4 add byte ptr [eax],al
004260E6 add byte ptr [eax],al
ebp+edx-24h的值
??_7CSofaBed@@6BCBed@@@:
004260E8 int 10h CBed虚函数表地址
004260EA inc eax
004260EB add byte ptr [eax+10h],bh
004260EE inc eax
004260EF add byte ptr [eax],al
004260F1 add byte ptr [eax],al
004260F3 add byte ptr [eax+edx+10050040h],cl
004260FA inc eax
004260FB add ah,bl
004260FD adc byte ptr [eax],al
00426100 add byte ptr [eax],al
00426102 add byte ptr [eax],al
??_8CSofaBed@@7BCSofa@@@: Sofa父类
00426110 cld
00426111 ???
00426112 ???
00426113 call fword ptr [eax+eax]
00426116 add byte ptr [eax],al
00426118 add byte ptr [eax],al
0042611A add byte ptr [eax],al
??_8CSofaBed@@7BCBed@@@:
00426104 cld
00426105 ???
00426106 ???
00426107 call dword ptr [eax]
00426109 add byte ptr [eax],al
0042610B add byte ptr [eax],al
0042610D add byte ptr [eax],al
0042610F add ah,bh
00426111 ???
00426112 ???
00426113 call fword ptr [eax+eax]
00426116 add byte ptr [eax],al
00426118 add byte ptr [eax],al
0042611A add byte ptr [eax],al
0018FF03 CC CC CC CC CC CC CC CC CC 40 FF 烫烫烫烫藹.
0018FF0E 18 00 CC CC CC CC CC CC CC CC CC ..烫烫烫烫.
0018FF19 CC CC CC CC CC CC CC F4 60 42 00 烫烫烫挑`B.
0018FF24 10 61 42 00 02 00 00 00 E8 60 42 .aB.....鑐B
0018FF2F 00 04 61 42 00 02 00 00 00 01 00 ..aB.......
00410635 mov dword ptr [ebp-2Ch],ecx
0018FF19 CC CC CC 40 FF 18 00 F4 60 42 00 烫藹...鬬B.
0018FF24 10 61 42 00 02 00 00 00 E8 60 42 .aB.....鑐B
??_7CSofaBed@@6BCSofa@@@: CSofa虚函数基地址
004260F4 mov word ptr [eax],ss
004260F6 inc eax
004260F7 add byte ptr ds:[0DC004010h],al
004260FD adc byte ptr [eax],al
00426100 add byte ptr [eax],al
00426102 add byte ptr [eax],al
0041063B mov dword ptr [ebp-30h],edx
100: CBed * pBed = &SofaBed;
0041063E lea eax,[ebp-28h]
0018FF0E 18 00 CC CC CC CC CC CC CC CC 20 ..烫烫烫烫
0018FF19 FF 18 00 40 FF 18 00 F4 60 42 00 ...@...鬬B.
0018FF24 10 61 42 00 02 00 00 00 E8 60 42 .aB.....鑐B
00410645 lea ecx,[ebp-1Ch] ECX = 0018FF2C
ebp-24h ebp-1ch 8byte
0041064D mov dword ptr [ebp-40h],0
00410654 mov edx,dword ptr [ebp-40h] EDX = 0018FF2C
101: pFurniture->m_nPrice = 88;
0041065A mov eax,dword ptr [ebp-2Ch]
0041065D mov dword ptr [eax+4],58h
102: pSofa->m_nColor = 8;
00410664 mov ecx,dword ptr [ebp-30h]
00410667 mov dword ptr [ecx+8],8
103: pSofa->m_nPrice = 90;
0041066E mov edx,dword ptr [ebp-30h]
00410671 mov eax,dword ptr [edx+4]
00410674 mov ecx,dword ptr [eax+4]
00410677 mov edx,dword ptr [ebp-30h]
0041067A mov dword ptr [edx+ecx+8],5Ah
104: pBed->m_nLength = 13;
00410682 mov eax,dword ptr [ebp-34h]
00410685 mov dword ptr [eax+8],0Dh
105: pBed->m_nWidth = 66;
0041068C mov ecx,dword ptr [ebp-34h]
0041068F mov dword ptr [ecx+0Ch],42h
106: SofaBed.m_nHeight = 45;
00410696 mov dword ptr [ebp-0Ch],2Dh
107: return 0;
0041069D mov dword ptr [ebp-38h],0
004106A4 lea ecx,[ebp-28h]
004106A7 call @ILT+40(CSofaBed::`vbase destructor') (0040102d)
004106AC mov eax,dword ptr [ebp-38h]
108: }
EBP = 0018FF48 ebp-2ch 0x18ff1c
EAX = 0018FF40
0041065D mov dword ptr [eax+4],58h
0018FF1C 40 FF 18 00 F4 60 42 00 10 61 42 @...鬬B..aB
0018FF27 00 02 00 00 00 E8 60 42 00 04 61 .....鑐B..a
0018FF32 42 00 02 00 00 00 01 00 00 00 06 B..........
0018FF3D 00 00 00 DC 60 42 00 58 00 00 00 ...躟B.X... 0x58
0018FF48 88 FF 18 00 29 32 40 00 01 00 00 ....)2@....
0018FF53 00 B8 19 87 00 30 1A 87 00 00 00 .....0.....
00410664 mov ecx,dword ptr [ebp-30h]
ECX = 0018FF20
00410667 mov dword ptr [ecx+8],8
0018FF11 CC CC CC 2C FF 18 00 20 FF 18 00 烫.,... ...
0018FF1C 40 FF 18 00 F4 60 42 00 10 61 42 @...鬬B..aB
0018FF27 00 08 00 00 00 E8 60 42 00 04 61 .....鑐B..a 0x08
0018FF32 42 00 02 00 00 00 01 00 00 00 06 B..........
0018FF3D 00 00 00 DC 60 42 00 58 00 00 00 ...躟B.X...
0018FF48 88 FF 18 00 29 32 40 00 01 00 00 ....)2@....
0018FF53 00 B8 19 87 00 30 1A 87 00 00 00 .....0.....
0041066E mov edx,dword ptr [ebp-30h]
EDX = 0018FF20
00410671 mov eax,dword ptr [edx+4]
EAX = 00426110
00410674 mov ecx,dword ptr [eax+4] ECX = 0000001C
0041067A mov dword ptr [edx+ecx+8],5Ah
0018FF11 CC CC CC 2C FF 18 00 20 FF 18 00 烫.,... ...
0018FF1C 40 FF 18 00 F4 60 42 00 10 61 42 @...鬬B..aB
0018FF27 00 08 00 00 00 E8 60 42 00 04 61 .....鑐B..a
0018FF32 42 00 02 00 00 00 01 00 00 00 06 B..........
0018FF3D 00 00 00 DC 60 42 00 5A 00 00 00 ...躟B.Z... 0x5a 90
0018FF48 88 FF 18 00 29 32 40 00 01 00 00 ....)2@....
0018FF53 00 B8 19 87 00 30 1A 87 00 00 00 .....0.....
EAX = 00426110 EBX = 7EFDE000
ECX = 0000001C EDX = 0018FF20
ESI = 00000000 EDI = 0018FF48
EIP = 00410682 ESP = 0018FEBC
EBP = 0018FF48 EFL = 00000202
00410682 mov eax,dword ptr [ebp-34h]
00410685 mov dword ptr [eax+8],0Dh
0018FF1C 40 FF 18 00 F4 60 42 00 10 61 42 @...鬬B..aB
0018FF27 00 08 00 00 00 E8 60 42 00 04 61 .....鑐B..a
0018FF32 42 00 0D 00 00 00 01 00 00 00 06 B..........
0018FF3D 00 00 00 DC 60 42 00 5A 00 00 00 ...躟B.Z...
0018FF48 88 FF 18 00 29 32 40 00 01 00 00 ....)2@....
0018FF53 00 B8 19 87 00 30 1A 87 00 00 00 .....0.....
0018FF5E 00 00 00 00 00 00 00 E0 FD 7E 00 .......帻~.
104: pBed->m_nLength = 13;
00410682 mov eax,dword ptr [ebp-34h]
00410685 mov dword ptr [eax+8],0Dh
105: pBed->m_nWidth = 66;
0041068C mov ecx,dword ptr [ebp-34h]
0041068F mov dword ptr [ecx+0Ch],42h
106: SofaBed.m_nHeight = 45;
00410696 mov dword ptr [ebp-0Ch],2Dh
107: return 0;
0041069D mov dword ptr [ebp-38h],0
EAX = 0018FF2C EBX = 7EFDE000
ECX = 0018FF2C EDX = 0018FF20
ESI = 00000000 EDI = 0018FF48
EIP = 004106A4 ESP = 0018FEBC
EBP = 0018FF48 EFL = 00000202
0018FF06 CC CC 2C FF 18 00 40 FF 18 00 00 烫,...@....
0018FF11 00 00 00 2C FF 18 00 20 FF 18 00 ...,... ...
0018FF1C 40 FF 18 00 F4 60 42 00 10 61 42 @...鬬B..aB
0018FF27 00 08 00 00 00 E8 60 42 00 04 61 .....鑐B..a
0018FF32 42 00 0D 00 00 00 42 00 00 00 2D B.....B...- m_nHeight = 45;
0018FF3D 00 00 00 DC 60 42 00 5A 00 00 00 ...躟B.Z...
0018FF48 88 FF 18 00 29 32 40 00 01 00 00 ....)2@....
0018FF06 CC CC
2C FF 18 00
40 FF 18 00
00 00 00 00 烫,...@....
2C FF 18 00
20 FF 18 00 ...,... ...
0018FF1C 40 FF 18 00
F4 60 42 00 this指针 ebp-28h ebp xx480
10 61 42 00 @...鬬B..aB
08 00 00 00 pSofa->m_nColor = 8;
E8 60 42 00
04 61 42 00 .....鑐B..a
0D 00 00 00 pBed->m_nLength = 13;
42 00 00 00 pBed->m_nWidth = 66;
2D 00 00 00 B.....B...- SofaBed.m_nHeight = 45;
DC 60 42 00
5A 00 00 00 ...躟B.Z... pSofa->m_nPrice = 90;覆盖88
0018FF48 88 FF 18 00 29 32 40 00 01 00 00 ....)2@....
class CSofaBed : public CSofa , public CBed
{
public:
class CFurniture
{
public:
int m_nPrice;
};
class CSofa : virtual public CFurniture
{
public:
int m_nColor;
};
class CBed : virtual public CFurniture
{
public:
int m_nLength;
int m_nWidth;
};
public:
int m_nHeight;
};
F4 60 42 00 this指针 ebp-28h ebp xx48h 第一个基类以定义的虚函数
10 61 42 00 @...鬬B..aB CSofa数据区域
08 00 00 00 pSofa->m_nColor = 8;
E8 60 42 00 第二个父类以定义的虚函数
04 61 42 00 .....鑐B..a 第二个父类区域
0D 00 00 00 pBed->m_nLength = 13;
42 00 00 00 pBed->m_nWidth = 66;
2D 00 00 00 B.....B...- SofaBed.m_nHeight = 45; 本类成员变量区域
DC 60 42 00 祖父类数据区域
5A 00 00 00 ...躟B.Z... pSofa->m_nPrice = 90;覆盖88
004260E4 00000000 004010CD 00401078 00000000
004260F4 0040108C 00401005 004010DC 00000000 所有虚函数地址,以0结束。
00426104 FFFFFFFC 00000010 00000000 FFFFFFFC
00426114 0000001C 00000000 004010EB 004010F0
00426124 00000000 74726976 206C6175 7546437E
00410615 lea eax,[ebp-28h]
@ILT+135(?GeyColor@CSofa@@UAEHXZ):
0040108C jmp CSofa::GeyColor (00402460)
虚函数表地址
0018FF20 004260F4 00426110 00000002 004260E8
0018FF30 00426104 00000002 00000001 00000006
0018FF40 004260DC 00000003 0018FF88 00403229
0018FF50 00000001 001F19B8 001F1A30 00000000
@ILT+200(?GetArea@CBed@@UAEHXZ):
004010CD jmp CBed::GetArea (00402690)
004260C4 206C6175 6C696863 00000A64 00000000
004260D4 00401118 00403130 00401032 004010F0
004260E4 00000000 004010CD 00401078 00000000
004260F4 0040108C 00401005 004010DC 00000000
00426104 FFFFFFFC 00000010 00000000 FFFFFFFC
00426114 0000001C 00000000 004010EB 004010F0
00426124 00000000 74726976 206C6175 7546437E
FFFFFFFC 00000010 00000000表示没有。空表。
虚表地址都一样,static存储结构。
同类对象共享一个虚表。
004020F2 mov dword ptr [eax+4],offset CSofaBed::`vbtable' (00426110)
004020F9 mov ecx,dword ptr [ebp-10h]
0018FF20 CCCCCCCC 00426110 CCCCCCCC CCCCCCCC
0018FF30 CCCCCCCC CCCCCCCC CCCCCCCC CCCCCCCC
0018FF40 CCCCCCCC CCCCCCCC 0018FF88 00403229
0018FF50 00000001 002819B8 00281A30 00000000
0018FF60 00000000 7EFDE000 00000000 00000000
00426100 0040114A FFFFFFFC 00000010 00000000
00426110 FFFFFFFC 0000001C 00000000 004010EB
00426120 004010F0 00000000 74726976 206C6175
0018FF20 CCCCCCCC 00426110 CCCCCCCC CCCCCCCC
0018FF30 00426104 CCCCCCCC CCCCCCCC CCCCCCCC
0018FF40 CCCCCCCC CCCCCCCC 0018FF88 00403229
0018FF50 00000001 002819B8 00281A30 00000000
004020FC mov dword ptr [ecx+10h],offset CSofaBed::`vbtable' (00426104)
004260F4 0040108C 00401005 004010DC 0040114A
00426104 FFFFFFFC 00000010 00000000 FFFFFFFC
00426114 0000001C 00000000 004010EB 004010F0
5: CFurniture()
004021D0 push ebp
004021D1 mov ebp,esp
004021D3 sub esp,44h
004021D6 push ebx
004021D7 push esi
004021D8 push edi
004021D9 push ecx
004021DA lea edi,[ebp-44h]
004021DD mov ecx,11h
004021E2 mov eax,0CCCCCCCCh
004021E7 rep stos dword ptr [edi]
004021E9 pop ecx
004021EA mov dword ptr [ebp-4],ecx
004021ED mov eax,dword ptr [ebp-4]
004021F0 mov dword ptr [eax],offset CFurniture::`vftable' (0042611c)
0018FF40
0018FF20 CCCCCCCC 00426110 CCCCCCCC CCCCCCCC
0018FF30 00426104 CCCCCCCC CCCCCCCC CCCCCCCC
0018FF40 0042611C CCCCCCCC 0018FF88 00403229
0042611C 004010EB 004010F0 00000000 74726976
0042612C 206C6175 7546437E 74696E72 28657275
00402378 mov edx,dword ptr [ebp-4]
0040237B mov dword ptr [edx],offset CSofa::`vftable' (00426150)
EAX = CCCCCCCC EBX = 7EFDE000
ECX = 0018FF20 EDX = 0018FF20
ESI = 00000000 EDI = 0018FE44
EIP = 0040237B ESP = 0018FDF0
EBP = 0018FE44 EFL = 00000246
0018FF20 00426150 00426110 CCCCCCCC CCCCCCCC
0018FF30 00426104 CCCCCCCC CCCCCCCC CCCCCCCC
0018FF40 0042611C 00000000 0018FF88 00403229
0018FF50 00000001 002819B8 00281A30 00000000
0040238A mov eax,dword ptr [ebp-4]
0040238D mov dword ptr [eax+edx+4],offset CSofa::`vftable' (00426144)
0018FF20 00426150 00426110 CCCCCCCC CCCCCCCC
0018FF30 00426104 CCCCCCCC CCCCCCCC CCCCCCCC
0018FF40 00426144 00000000 0018FF88 00403229
0018FF50 00000001 002819B8 00281A30 00000000
00402608 mov edx,dword ptr [ebp-4]
0040260B mov dword ptr [edx],offset CBed::`vftable' (004261b0)
EAX = CCCCCCCC EBX = 7EFDE000
ECX = 0018FF2C EDX = 0018FF2C
ESI = 00000000 EDI = 0018FE44
EIP = 00402611 ESP = 0018FDF0
EBP = 0018FE44 EFL = 00000246
0018FF20 00426150 00426110 00000002 004261B0
0018FF30 00426104 CCCCCCCC CCCCCCCC CCCCCCCC
0018FF40 00426144 00000001 0018FF88 00403229
0018FF50 00000001 002819B8 00281A30 00000000
00402617 mov edx,dword ptr [ecx+4]
0040261A mov eax,dword ptr [ebp-4]
0040261D mov dword ptr [eax+edx+4],offset CBed::`vftable' (004261a4)
0018FF20 00426150 00426110 00000002 004261B0
0018FF30 00426104 CCCCCCCC CCCCCCCC CCCCCCCC
0018FF40 004261A4 00000001 0018FF88 00403229
0018FF50 00000001 002819B8 00281A30 00000000
0040213C mov eax,dword ptr [ebp-10h]
0040213F mov dword ptr [eax],offset CSofaBed::`vftable' (004260f4)
0018FF20 004260F4 00426110 00000002 004261B0
0018FF30 00426104 00000002 00000001 CCCCCCCC
0018FF40 004261A4 00000003 0018FF88 00403229
0018FF50 00000001 002819B8 00281A30 00000000
00402145 mov ecx,dword ptr [ebp-10h]
00402148 mov dword ptr [ecx+0Ch],offset CSofaBed::`vftable' (004260e8)
0018FF20 004260F4 00426110 00000002 004260E8
0018FF30 00426104 00000002 00000001 CCCCCCCC
0018FF40 004261A4 00000003 0018FF88 00403229
0018FF50 00000001 002819B8 00281A30 00000000
00402155 mov ecx,dword ptr [eax+4]
00402158 mov edx,dword ptr [ebp-10h]
0040215B mov dword ptr [edx+ecx+4],offset CSofaBed::`vftable' (004260dc)
0018FF20 004260F4 00426110 00000002 004260E8
0018FF30 00426104 00000002 00000001 CCCCCCCC
0018FF40 004260DC 00000003 0018FF88 00403229
0018FF50 00000001 002819B8 00281A30 00000000
00426084 00000000 0040100F 0040105F 004010C8
00426094 00000000 656D4143 61636972 0000006E
004260A4 00401091 0040105F 00401037 00000000
004260B4 72654743 006E616D 00000000 74726976
004260C4 206C6175 6C696863 00000A64 00000000
004260D4 00401118 00403130 00401032 004010F0 祖父类
004260E4 00000000 004010CD 00401078 00000000 ~CBed
004260F4 0040108C 00401005 004010DC 0040114A ~CSofa
00426104 FFFFFFFC 00000010 00000000 FFFFFFFC CBed , CSofa
00426114 0000001C 00000000 004010EB 004010F0
00426124 00000000 74726976 206C6175 7546437E
00426134 74696E72 28657275 00000A29 00000000
00426144 0040109B 004010F0 00000000 0040108C
00426154 00401041 00000000 FFFFFFFC 00000008
00426164 00000000 74726976 206C6175 6F53437E
00426174 29286166 0000000A 00000000 20746953
00426184 6E776F64 646E6120 73657220 6F792074
00426194 6C207275 0A736765 00000000 00000000
004261A4 0040110E 004010F0 00000000 004010CD
004261B4 004010D7 00000000 FFFFFFFC 0000000C
004261C4 00000000 74206F67 6C73206F 21706565
004261D4 0000000A 74726976 206C6175 6542437E
004261E4 0A292864 00000000 20746953 6E776F44
004261F4 206E6F20 20656874 61666F73 64656220
00426204 0000000A 00000000 74206F67 6C73206F
00426214 20706565 74206E6F 73206568 2061666F
F4 60 42 00 this指针 ebp-28h ebp xx48h 第一个基类未定义的虚函数
10 61 42 00 @...鬬B..aB CSofa数据区域
08 00 00 00 pSofa->m_nColor = 8;
E8 60 42 00 第二个父类未定义的虚函数
04 61 42 00 .....鑐B..a 第二个父类区域
0D 00 00 00 pBed->m_nLength = 13;
42 00 00 00 pBed->m_nWidth = 66;
2D 00 00 00 B.....B...- SofaBed.m_nHeight = 45; 本类成员变量区域
DC 60 42 00 祖父类数据区域
5A 00 00 00 ...躟B.Z... pSofa->m_nPrice = 90;覆盖88
0018FF20 004260F4 00426110 00000002 004260E8
0018FF30 00426104 00000002 00000001 00000006
0018FF40 004260DC 00000003 0018FF88 00403229
0018FF50 00000001 002819B8 00281A30 00000000
00401005 @ILT+0(?SitDown@CSofaBed@@UAEHXZ):
00401005 jmp CSofaBed::SitDown (00402860)
0040114A jmp CSofaBed::Show (00402940)
@ILT+0(?SitDown@CSofaBed@@UAEHXZ):
00401005 jmp CSofaBed::SitDown (00402860)
@ILT+5(??_ECGerman@@UAEPAXI@Z):
0040100A jmp CGerman::`scalar deleting destructor' (00401e80)
@ILT+10(??_ECAmerican@@UAEPAXI@Z):
0040100F jmp CAmerican::`scalar deleting destructor' (00401c90)
@ILT+15(?SetNumber@CBase@@QAEXH@Z):
00401014 jmp CBase::SetNumber (004013c0)
@ILT+20(?GetClassName@CChinese@@UAEPADXZ):
00401019 jmp CChinese::GetClassName (00401a60)
@ILT+25(??0CSofaBed@@QAE@XZ):
0040101E jmp CSofaBed::CSofaBed (004020b0)
@ILT+30(??0CVirtualBase@@QAE@XZ):
00401023 jmp CVirtualBase::CVirtualBase (00402010)
@ILT+35(??1CBase@@QAE@XZ):
00401028 jmp CBase::~CBase (00401530)
@ILT+40(??_DCSofaBed@@QAEXXZ):
0040102D jmp CSofaBed::`vbase destructor' (00402a10)
@ILT+45(??_GCSofaBed@@UAEPAXI@Z):
00401032 jmp CSofaBed::`scalar deleting destructor' (004029b0)
@ILT+50(?GetClassName@CGerman@@UAEPADXZ):
00401037 jmp CGerman::GetClassName (00401e40)
@ILT+55(?ShowNumber@CDerive@@QAEXH@Z):
0040103C jmp CDerive::ShowNumber (00401330)
@ILT+60(?SitDown@CSofa@@UAEHXZ):
00401041 jmp CSofa::SitDown (004024a0)
@ILT+65(??_DCSofa@@QAEXXZ):
00401046 jmp CSofa::`vbase destructor' (00402560)
@ILT+70(??0CGerman@@QAE@XZ):
0040104B jmp CGerman::CGerman (00401d00)
@ILT+75(??0CAmerican@@QAE@XZ):
00401050 jmp CAmerican::CAmerican (00401b10)
@ILT+80(??0CChinese@@QAE@XZ):
00401055 jmp CChinese::CChinese (00401750)
@ILT+85(??_DCBed@@QAEXXZ):
0040105A jmp CBed::`vbase destructor' (00402790)
@ILT+90(?ShowSpeak@CPerson@@UAEXXZ):
0040105F jmp CPerson::ShowSpeak (004018a0)
@ILT+95(??_GCPerson@@UAEPAXI@Z):
00401064 jmp CPerson::`scalar deleting destructor' (00401950)
@ILT+100(??1CPerson@@UAE@XZ):
00401069 jmp CPerson::~CPerson (00401850)
@ILT+105(?GetNumber@CBase@@QAEHXZ):
0040106E jmp CBase::GetNumber (00401400)
@ILT+110(??0CDerive@@QAE@XZ):
00401073 jmp CDerive::CDerive (00401440)
@ILT+115(?Sleep@CSofaBed@@UAEHXZ):
00401078 jmp CSofaBed::Sleep (004028b0)
@ILT+120(??0CFurniture@@QAE@XZ):
0040107D jmp CFurniture::CFurniture (004021d0)
@ILT+125(?main4@@YAHXZ):
00401082 jmp main4 (00401690)
@ILT+130(??1CGerman@@UAE@XZ):
00401087 jmp CGerman::~CGerman (00401da0)
@ILT+135(?GeyColor@CSofa@@UAEHXZ):
0040108C jmp CSofa::GeyColor (00402460)
@ILT+140(??_ECGerman@@UAEPAXI@Z):
00401091 jmp CGerman::`scalar deleting destructor' (00401e80)
@ILT+145(??1CDerive@@QAE@XZ):
00401096 jmp CDerive::~CDerive (004014e0)
@ILT+150(??_ECSofa@@UAEPAXI@Z):
0040109B jmp CSofa::`scalar deleting destructor' (004024f0)
@ILT+155(??0CPerson@@QAE@XZ):
004010A0 jmp CPerson::CPerson (004017f0)
@ILT+160(??_GCChinese@@UAEPAXI@Z):
004010A5 jmp CChinese::`scalar deleting destructor' (00401aa0)
@ILT+165(??1CAmerican@@UAE@XZ):
004010AA jmp CAmerican::~CAmerican (00401bb0)
@ILT+170(?main2@@YAHXZ):
004010AF jmp main2 (00401600)
@ILT+175(??1CFurniture@@UAE@XZ):
004010B4 jmp CFurniture::~CFurniture (00402220)
@ILT+180(?GetClassName@CPerson@@UAEPADXZ):
004010B9 jmp CPerson::GetClassName (00401910)
@ILT+185(??1CChinese@@UAE@XZ):
004010BE jmp CChinese::~CChinese (004019c0)
@ILT+190(??_ECBed@@UAEPAXI@Z):
004010C3 jmp CBed::`scalar deleting destructor' (00402720)
@ILT+195(?GetClassName@CAmerican@@UAEPADXZ):
004010C8 jmp CAmerican::GetClassName (00401c50)
@ILT+200(?GetArea@CBed@@UAEHXZ):
004010CD jmp CBed::GetArea (00402690)
@ILT+205(??1CBed@@UAE@XZ):
004010D2 jmp CBed::~CBed (004027f0)
@ILT+210(?Sleep@CBed@@UAEHXZ):
004010D7 jmp CBed::Sleep (004026d0)
@ILT+215(?GetHeight@CSofaBed@@UAEHXZ):
004010DC jmp CSofaBed::GetHeight (00402900)
@ILT+220(??1CSofaBed@@UAE@XZ):
004010E1 jmp CSofaBed::~CSofaBed (004106d0)
@ILT+225(_main):
004010E6 jmp main (004105f0)
@ILT+230(??_GCFurniture@@UAEPAXI@Z):
004010EB jmp CFurniture::`scalar deleting destructor' (004022c0)
@ILT+235(?GetPrice@CFurniture@@UAEHXZ):
004010F0 jmp CFurniture::GetPrice (00402280)
@ILT+240(??0CBase@@QAE@XZ):
004010F5 jmp CBase::CBase (00401490)
@ILT+245(??0CSofa@@QAE@XZ):
004010FA jmp CSofa::CSofa (00402330)
@ILT+250(?main6@@YAHXZ):
004010FF jmp main6 (00401ef0)
@ILT+255(?main3@@YAHXZ):
00401104 jmp main3 (00401580)
@ILT+260(??_ECSofa@@UAEPAXI@Z):
00401109 jmp CSofa::`scalar deleting destructor' (004024f0)
@ILT+265(??_ECBed@@UAEPAXI@Z):
0040110E jmp CBed::`scalar deleting destructor' (00402720)
@ILT+270(?main1@@YAHHQAPAD@Z):
00401113 jmp main1 (00401290)
@ILT+275(?show@CVirtualChild@@UAEXXZ):
00401118 jmp CVirtualChild::show (00401f60)
@ILT+280(??1CSofa@@UAE@XZ):
0040111D jmp CSofa::~CSofa (004023f0)
@ILT+285(??0CBed@@QAE@XZ):
00401122 jmp CBed::CBed (004025c0)
@ILT+290(??_ECAmerican@@UAEPAXI@Z):
00401127 jmp CAmerican::`scalar deleting destructor' (00401c90)
@ILT+295(?speak@@YAXPAVCPerson@@@Z):
0040112C jmp speak (00401640)
@ILT+300(??_GCFurniture@@UAEPAXI@Z):
00401131 jmp CFurniture::`scalar deleting destructor' (004022c0)
@ILT+305(??_GCPerson@@UAEPAXI@Z):
00401136 jmp CPerson::`scalar deleting destructor' (00401950)
@ILT+310(??_GCSofaBed@@UAEPAXI@Z):
0040113B jmp CSofaBed::`scalar deleting destructor' (004029b0)
@ILT+315(??0CVirtualChild@@QAE@XZ):
00401140 jmp CVirtualChild::CVirtualChild (00401fb0)
@ILT+320(??_GCChinese@@UAEPAXI@Z):
00401145 jmp CChinese::`scalar deleting destructor' (00401aa0)
0040114A jmp CSofaBed::Show (00402940)
@ILT+135(?GeyColor@CSofa@@UAEHXZ):
0040108C jmp CSofa::GeyColor (00402460)
@ILT+215(?GetHeight@CSofaBed@@UAEHXZ):
004010DC jmp CSofaBed::GetHeight (00402900)
0018FF0C CCCCCCCC CCCCCCCC CCCCCCCC
0018FF18 00426110 CCCCCCCC CCCCCCCC 00426110 00426104Sofa类虚表
0018FF24 00426104 CCCCCCCC CCCCCCCC
0018FF30 CCCCCCCC 0042611C 00000000 0042611c祖父类虚表
0018FF3C 0018FF78 00414D69 FFFFFFFF
0018FF48 0018FF88 00403229 00000001
0018FF0C CCCCCCCC CCCCCCCC 00426150 00426150
0018FF18 00426110 CCCCCCCC CCCCCCCC
0018FF24 00426104 CCCCCCCC CCCCCCCC
0018FF30 CCCCCCCC 00426144 00000000 00426144 CSofa
0018FF3C 0018FF78 00414D69 FFFFFFFF
0018FF48 0018FF88 00403229 00000001
0018FF0C CCCCCCCC CCCCCCCC 00426150
0018FF18 00426110 00000002 004261B0 004261b0 004261a4 CBed类虚函数表
0018FF24 00426104 CCCCCCCC CCCCCCCC
0018FF30 CCCCCCCC 004261A4 00000001
0018FF3C 0018FF78 00414D69 FFFFFFFF
0018FF48 0018FF88 00403229 00000001
0018FF0C CCCCCCCC CCCCCCCC 004260F4 004260F4 E8 DC CSofaBed类虚表
0018FF18 00426110 00000002 004260E8
0018FF24 00426104 00000002 00000001
0018FF30 CCCCCCCC 004260DC 00000003
0018FF3C 0018FF78 00414D69 FFFFFFFF
0018FF48 0018FF88 00403229 00000001
原文地址：http://blog.csdn.net/u011185633/article/details/44828125
