#include <stdio.h>
/*
* 继承
*/
class object
{
public:
int color;
object() {}
object(int color) {
this->color = color;
}
void print_color() {
printf("color=%d\n", color);
}
};
class box:public object
{
private:
int width, height, depth;
public:
box(int color, int width, int height, int depth)
{
this->color = color;
this->width = width;
this->height = height;
this->depth = depth;
}
void dump()
{
printf("this is box, color=%d, width=%d, height=%d, depth=%d\n", color, width, height, depth);
}
};
class sphere:public object
{
private:
int radius;
public:
sphere(int color, int radius)
{
this->color = color;
this->radius = radius;
}
void dump()
{
printf("this is sphere.color=%d, radius=%d\n", color, radius);
}
};
int main()
{
box b(1, 10, 20, 30);
sphere s(2, 40);
b.print_color();
s.print_color();
b.dump();
s.dump();
return 0;
}
#if 0
/* gcc */
GCC不会使用ECX传递this指针，它会以函数的第一个参数的传递方式传递this指针。
#endif
#if 0
/*
* intel
*/
0000000000001169 :
1169: f3 0f 1e fa endbr64
116d: 55 push %rbp
116e: 48 89 e5 mov %rsp,%rbp
1171: 48 83 ec 30 sub $0x30,%rsp
1175: 64 48 8b 04 25 28 00 mov %fs:0x28,%rax
117c: 00 00
117e: 48 89 45 f8 mov %rax,-0x8(%rbp)
1182: 31 c0 xor %eax,%eax
1184: 48 8d 45 e0 lea -0x20(%rbp),%rax
1188: 41 b8 1e 00 00 00 mov $0x1e,%r8d
118e: b9 14 00 00 00 mov $0x14,%ecx
1193: ba 0a 00 00 00 mov $0xa,%edx
1198: be 01 00 00 00 mov $0x1,%esi
119d: 48 89 c7 mov %rax,%rdi
11a0: e8 9d 00 00 00 callq 1242 <_ZN3boxC1Eiiii>
11a5: 48 8d 45 d8 lea -0x28(%rbp),%rax
11a9: ba 28 00 00 00 mov $0x28,%edx
11ae: be 02 00 00 00 mov $0x2,%esi
11b3: 48 89 c7 mov %rax,%rdi
11b6: e8 1f 01 00 00 callq 12da <_ZN6sphereC1Eii>
11bb: 48 8d 45 e0 lea -0x20(%rbp),%rax
11bf: 48 89 c7 mov %rax,%rdi
11c2: e8 4f 00 00 00 callq 1216 <_ZN6object11print_colorEv>
11c7: 48 8d 45 d8 lea -0x28(%rbp),%rax
11cb: 48 89 c7 mov %rax,%rdi
11ce: e8 43 00 00 00 callq 1216 <_ZN6object11print_colorEv>
11d3: 48 8d 45 e0 lea -0x20(%rbp),%rax
11d7: 48 89 c7 mov %rax,%rdi
11da: e8 b7 00 00 00 callq 1296 <_ZN3box4dumpEv>
11df: 48 8d 45 d8 lea -0x28(%rbp),%rax
11e3: 48 89 c7 mov %rax,%rdi
11e6: e8 27 01 00 00 callq 1312 <_ZN6sphere4dumpEv>
11eb: b8 00 00 00 00 mov $0x0,%eax
11f0: 48 8b 4d f8 mov -0x8(%rbp),%rcx
11f4: 64 48 33 0c 25 28 00 xor %fs:0x28,%rcx
11fb: 00 00
11fd: 74 05 je 1204
11ff: e8 5c fe ff ff callq 1060 <__stack_chk_fail@plt>
1204: c9 leaveq
1205: c3 retq
0000000000001206 <_ZN6objectC1Ev>:
1206: f3 0f 1e fa endbr64
120a: 55 push %rbp
120b: 48 89 e5 mov %rsp,%rbp
120e: 48 89 7d f8 mov %rdi,-0x8(%rbp)
1212: 90 nop
1213: 5d pop %rbp
1214: c3 retq
1215: 90 nop
0000000000001216 <_ZN6object11print_colorEv>:
1216: f3 0f 1e fa endbr64
121a: 55 push %rbp
121b: 48 89 e5 mov %rsp,%rbp
121e: 48 83 ec 10 sub $0x10,%rsp
1222: 48 89 7d f8 mov %rdi,-0x8(%rbp)
1226: 48 8b 45 f8 mov -0x8(%rbp),%rax
122a: 8b 00 mov (%rax),%eax
122c: 89 c6 mov %eax,%esi
122e: 48 8d 3d d3 0d 00 00 lea 0xdd3(%rip),%rdi # 2008 <_IO_stdin_used+0x8>
1235: b8 00 00 00 00 mov $0x0,%eax
123a: e8 31 fe ff ff callq 1070
123f: 90 nop
1240: c9 leaveq
1241: c3 retq
0000000000001242 <_ZN3boxC1Eiiii>:
1242: f3 0f 1e fa endbr64
1246: 55 push %rbp
1247: 48 89 e5 mov %rsp,%rbp
124a: 48 83 ec 20 sub $0x20,%rsp
124e: 48 89 7d f8 mov %rdi,-0x8(%rbp)
1252: 89 75 f4 mov %esi,-0xc(%rbp)
1255: 89 55 f0 mov %edx,-0x10(%rbp)
1258: 89 4d ec mov %ecx,-0x14(%rbp)
125b: 44 89 45 e8 mov %r8d,-0x18(%rbp)
125f: 48 8b 45 f8 mov -0x8(%rbp),%rax
1263: 48 89 c7 mov %rax,%rdi
1266: e8 9b ff ff ff callq 1206 <_ZN6objectC1Ev>
126b: 48 8b 45 f8 mov -0x8(%rbp),%rax
126f: 8b 55 f4 mov -0xc(%rbp),%edx
1272: 89 10 mov %edx,(%rax)
1274: 48 8b 45 f8 mov -0x8(%rbp),%rax
1278: 8b 55 f0 mov -0x10(%rbp),%edx
127b: 89 50 04 mov %edx,0x4(%rax)
127e: 48 8b 45 f8 mov -0x8(%rbp),%rax
1282: 8b 55 ec mov -0x14(%rbp),%edx
1285: 89 50 08 mov %edx,0x8(%rax)
1288: 48 8b 45 f8 mov -0x8(%rbp),%rax
128c: 8b 55 e8 mov -0x18(%rbp),%edx
128f: 89 50 0c mov %edx,0xc(%rax)
1292: 90 nop
1293: c9 leaveq
1294: c3 retq
1295: 90 nop
0000000000001296 <_ZN3box4dumpEv>:
1296: f3 0f 1e fa endbr64
129a: 55 push %rbp
129b: 48 89 e5 mov %rsp,%rbp
129e: 48 83 ec 10 sub $0x10,%rsp
12a2: 48 89 7d f8 mov %rdi,-0x8(%rbp)
12a6: 48 8b 45 f8 mov -0x8(%rbp),%rax
12aa: 8b 70 0c mov 0xc(%rax),%esi
12ad: 48 8b 45 f8 mov -0x8(%rbp),%rax
12b1: 8b 48 08 mov 0x8(%rax),%ecx
12b4: 48 8b 45 f8 mov -0x8(%rbp),%rax
12b8: 8b 50 04 mov 0x4(%rax),%edx
12bb: 48 8b 45 f8 mov -0x8(%rbp),%rax
12bf: 8b 00 mov (%rax),%eax
12c1: 41 89 f0 mov %esi,%r8d
12c4: 89 c6 mov %eax,%esi
12c6: 48 8d 3d 4b 0d 00 00 lea 0xd4b(%rip),%rdi # 2018 <_IO_stdin_used+0x18>
12cd: b8 00 00 00 00 mov $0x0,%eax
12d2: e8 99 fd ff ff callq 1070
12d7: 90 nop
12d8: c9 leaveq
12d9: c3 retq
00000000000012da <_ZN6sphereC1Eii>:
12da: f3 0f 1e fa endbr64
12de: 55 push %rbp
12df: 48 89 e5 mov %rsp,%rbp
12e2: 48 83 ec 10 sub $0x10,%rsp
12e6: 48 89 7d f8 mov %rdi,-0x8(%rbp)
12ea: 89 75 f4 mov %esi,-0xc(%rbp)
12ed: 89 55 f0 mov %edx,-0x10(%rbp)
12f0: 48 8b 45 f8 mov -0x8(%rbp),%rax
12f4: 48 89 c7 mov %rax,%rdi
12f7: e8 0a ff ff ff callq 1206 <_ZN6objectC1Ev>
12fc: 48 8b 45 f8 mov -0x8(%rbp),%rax
1300: 8b 55 f4 mov -0xc(%rbp),%edx
1303: 89 10 mov %edx,(%rax)
1305: 48 8b 45 f8 mov -0x8(%rbp),%rax
1309: 8b 55 f0 mov -0x10(%rbp),%edx
130c: 89 50 04 mov %edx,0x4(%rax)
130f: 90 nop
1310: c9 leaveq
1311: c3 retq
0000000000001312 <_ZN6sphere4dumpEv>:
1312: f3 0f 1e fa endbr64
1316: 55 push %rbp
1317: 48 89 e5 mov %rsp,%rbp
131a: 48 83 ec 10 sub $0x10,%rsp
131e: 48 89 7d f8 mov %rdi,-0x8(%rbp)
1322: 48 8b 45 f8 mov -0x8(%rbp),%rax
1326: 8b 50 04 mov 0x4(%rax),%edx
1329: 48 8b 45 f8 mov -0x8(%rbp),%rax
132d: 8b 00 mov (%rax),%eax
132f: 89 c6 mov %eax,%esi
1331: 48 8d 3d 18 0d 00 00 lea 0xd18(%rip),%rdi # 2050 <_IO_stdin_used+0x50>
1338: b8 00 00 00 00 mov $0x0,%eax
133d: e8 2e fd ff ff callq 1070
1342: 90 nop
1343: c9 leaveq
1344: c3 retq
1345: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
134c: 00 00 00
134f: 90 nop
/*
* arm
*/
000000000040062c :
40062c: a9bd7bfd stp x29, x30, [sp, #-48]!
400630: 910003fd mov x29, sp
400634: 910083a0 add x0, x29, #0x20
400638: 528003c4 mov w4, #0x1e // #30
40063c: 52800283 mov w3, #0x14 // #20
400640: 52800142 mov w2, #0xa // #10
400644: 52800021 mov w1, #0x1 // #1
400648: 94000020 bl 4006c8 <_ZN3boxC1Eiiii>
40064c: 910063a0 add x0, x29, #0x18
400650: 52800502 mov w2, #0x28 // #40
400654: 52800041 mov w1, #0x2 // #2
400658: 94000045 bl 40076c <_ZN6sphereC1Eii>
40065c: 910083a0 add x0, x29, #0x20
400660: 9400000f bl 40069c <_ZN6object11print_colorEv>
400664: 910063a0 add x0, x29, #0x18
400668: 9400000d bl 40069c <_ZN6object11print_colorEv>
40066c: 910083a0 add x0, x29, #0x20
400670: 9400002e bl 400728 <_ZN3box4dumpEv>
400674: 910063a0 add x0, x29, #0x18
400678: 9400004d bl 4007ac <_ZN6sphere4dumpEv>
40067c: 52800000 mov w0, #0x0 // #0
400680: a8c37bfd ldp x29, x30, [sp], #48
400684: d65f03c0 ret
0000000000400688 <_ZN6objectC1Ev>:
400688: d10043ff sub sp, sp, #0x10
40068c: f90007e0 str x0, [sp, #8]
400690: d503201f nop
400694: 910043ff add sp, sp, #0x10
400698: d65f03c0 ret
000000000040069c <_ZN6object11print_colorEv>:
40069c: a9be7bfd stp x29, x30, [sp, #-32]!
4006a0: 910003fd mov x29, sp
4006a4: f9000fa0 str x0, [x29, #24]
4006a8: f9400fa0 ldr x0, [x29, #24]
4006ac: b9400001 ldr w1, [x0]
4006b0: 90000000 adrp x0, 400000 <_init-0x4b8>
4006b4: 91224000 add x0, x0, #0x890
4006b8: 97ffff9a bl 400520
4006bc: d503201f nop
4006c0: a8c27bfd ldp x29, x30, [sp], #32
4006c4: d65f03c0 ret
00000000004006c8 <_ZN3boxC1Eiiii>:
4006c8: a9bd7bfd stp x29, x30, [sp, #-48]!
4006cc: 910003fd mov x29, sp
4006d0: f90017a0 str x0, [x29, #40]
4006d4: b90027a1 str w1, [x29, #36]
4006d8: b90023a2 str w2, [x29, #32]
4006dc: b9001fa3 str w3, [x29, #28]
4006e0: b9001ba4 str w4, [x29, #24]
4006e4: f94017a0 ldr x0, [x29, #40]
4006e8: 97ffffe8 bl 400688 <_ZN6objectC1Ev>
4006ec: f94017a0 ldr x0, [x29, #40]
4006f0: b94027a1 ldr w1, [x29, #36]
4006f4: b9000001 str w1, [x0]
4006f8: f94017a0 ldr x0, [x29, #40]
4006fc: b94023a1 ldr w1, [x29, #32]
400700: b9000401 str w1, [x0, #4]
400704: f94017a0 ldr x0, [x29, #40]
400708: b9401fa1 ldr w1, [x29, #28]
40070c: b9000801 str w1, [x0, #8]
400710: f94017a0 ldr x0, [x29, #40]
400714: b9401ba1 ldr w1, [x29, #24]
400718: b9000c01 str w1, [x0, #12]
40071c: d503201f nop
400720: a8c37bfd ldp x29, x30, [sp], #48
400724: d65f03c0 ret
0000000000400728 <_ZN3box4dumpEv>:
400728: a9be7bfd stp x29, x30, [sp, #-32]!
40072c: 910003fd mov x29, sp
400730: f9000fa0 str x0, [x29, #24]
400734: f9400fa0 ldr x0, [x29, #24]
400738: b9400001 ldr w1, [x0]
40073c: f9400fa0 ldr x0, [x29, #24]
400740: b9400402 ldr w2, [x0, #4]
400744: f9400fa0 ldr x0, [x29, #24]
400748: b9400803 ldr w3, [x0, #8]
40074c: f9400fa0 ldr x0, [x29, #24]
400750: b9400c04 ldr w4, [x0, #12]
400754: 90000000 adrp x0, 400000 <_init-0x4b8>
400758: 91228000 add x0, x0, #0x8a0
40075c: 97ffff71 bl 400520
400760: d503201f nop
400764: a8c27bfd ldp x29, x30, [sp], #32
400768: d65f03c0 ret
000000000040076c <_ZN6sphereC1Eii>:
40076c: a9be7bfd stp x29, x30, [sp, #-32]!
400770: 910003fd mov x29, sp
400774: f9000fa0 str x0, [x29, #24]
400778: b90017a1 str w1, [x29, #20]
40077c: b90013a2 str w2, [x29, #16]
400780: f9400fa0 ldr x0, [x29, #24]
400784: 97ffffc1 bl 400688 <_ZN6objectC1Ev>
400788: f9400fa0 ldr x0, [x29, #24]
40078c: b94017a1 ldr w1, [x29, #20]
400790: b9000001 str w1, [x0]
400794: f9400fa0 ldr x0, [x29, #24]
400798: b94013a1 ldr w1, [x29, #16]
40079c: b9000401 str w1, [x0, #4]
4007a0: d503201f nop
4007a4: a8c27bfd ldp x29, x30, [sp], #32
4007a8: d65f03c0 ret
00000000004007ac <_ZN6sphere4dumpEv>:
4007ac: a9be7bfd stp x29, x30, [sp, #-32]!
4007b0: 910003fd mov x29, sp
4007b4: f9000fa0 str x0, [x29, #24]
4007b8: f9400fa0 ldr x0, [x29, #24]
4007bc: b9400001 ldr w1, [x0]
4007c0: f9400fa0 ldr x0, [x29, #24]
4007c4: b9400402 ldr w2, [x0, #4]
4007c8: 90000000 adrp x0, 400000 <_init-0x4b8>
4007cc: 91236000 add x0, x0, #0x8d8
4007d0: 97ffff54 bl 400520
4007d4: d503201f nop
4007d8: a8c27bfd ldp x29, x30, [sp], #32
4007dc: d65f03c0 ret
#endif