cpp
int main(int argc, char** argv)
{
return 0;
}
asm
dump: file format elf32-littlearm
Disassembly of section .plt:
00008378 <.plt>:
8378: e52de004 push {lr} ; (str lr, [sp, #-4]!)
837c: e59fe004 ldr lr, [pc, #4] ; 8388 <_start-0x18>
8380: e08fe00e add lr, pc, lr
8384: e5bef008 ldr pc, [lr, #8]!
8388: 00000d40 andeq r0, r0, r0, asr #26
838c: e28fc600 add ip, pc, #0 ; 0x0
8390: e28cca00 add ip, ip, #0 ; 0x0
8394: e5bcfd40 ldr pc, [ip, #3392]!
Disassembly of section .text:
000083a0 <_start>:
83a0: e1a0000d mov r0, sp
83a4: e3a01000 mov r1, #0 ; 0x0
83a8: e28f2004 add r2, pc, #4 ; 0x4
83ac: e28f3004 add r3, pc, #4 ; 0x4
83b0: eafffff5 b 838c <_start-0x14>
83b4: ea000006 b 83d4 <main+0x4>
83b8: 00009000 .word 0x00009000
83bc: 00009008 .word 0x00009008
83c0: 00009010 .word 0x00009010
83c4: 00009018 .word 0x00009018
83c8: e1a00000 .word 0xe1a00000
83cc: e1a00000 .word 0xe1a00000
000083d0 <main>:
83d0: 2000 movs r0, #0
83d2: 4770 bx lr
83d4: f004 e51f blx 40ce14 <_stack+0x38ce14>
83d8: 83d1 strh r1, [r2, #30]
c++
int add2(int i, int j)
{
return i+j;
}
int add(int i, int j)
{
return add2(i,j);
}
int main(int argc, char** argv)
{
int m = add(1,2);
return m;
}
asm
000083d0 <add2(int, int)>:
83d0: 1808 adds r0, r1, r0
83d2: 4770 bx lr
000083d4 <add(int, int)>:
83d4: b510 push {r4, lr}
83d6: f7ff fffb bl 83d0 <add2(int, int)>
83da: bd10 pop {r4, pc}
000083dc <main>:
83dc: b510 push {r4, lr}
83de: 2001 movs r0, #1
83e0: 2102 movs r1, #2
83e2: f7ff fff7 bl 83d4 <add(int, int)>
83e6: bd10 pop {r4, pc}
83e8: f004 e51f blx 40ce28 <_stack+0x38ce28>
83ec: 83dd strh r5, [r3, #30]
...
c++
int add2(int i, int j)
{
return i+j;
}
int add1(int i, int j)
{
return add2(i,j);
}
int add0()
{
return add1(2,3);
}
int main(int argc, char** argv)
{
int m = add0();
return m;
}
asm
000083d0 <add2(int, int)>:
83d0: 1808 adds r0, r1, r0
83d2: 4770 bx lr
000083d4 <add1(int, int)>:
83d4: b510 push {r4, lr}
83d6: f7ff fffb bl 83d0 <add2(int, int)>
83da: bd10 pop {r4, pc}
000083dc <add0()>:
83dc: b510 push {r4, lr}
83de: 2002 movs r0, #2
83e0: 2103 movs r1, #3
83e2: f7ff fff7 bl 83d4 <add1(int, int)>
83e6: bd10 pop {r4, pc}
000083e8 <main>:
83e8: b510 push {r4, lr}
83ea: f7ff fff7 bl 83dc <add0()>
83ee: bd10 pop {r4, pc}
83f0: f004 e51f blx 40ce30 <_stack+0x38ce30>
83f4: 83e9 strh r1, [r5, #30]
...
c++
class Rect
{
public:
Rect();
int getWidth();
int getHeight();
void setWidth(int width);
void setHeight(int height);
private:
int m_width;
int m_height;
};
Rect::Rect()
{
m_width=1;
m_height=2;
}
Rect *g_Rect = new Rect();
int Rect::getWidth()
{
return m_width;
}
int Rect::getHeight()
{
return m_height;
}
void Rect::setHeight(int height)
{
m_height = height;
}
void Rect::setWidth(int width)
{
m_width = width;
}
void change(Rect *p)
{
p->setHeight(g_Rect->getWidth());
}
int main(int argc, char** argv)
{
Rect* myrect = new Rect();
change(myrect);
//int o = m;
return 0;
}
asm
00008430 <Rect::Rect()>:
8430: 2101 movs r1, #1
8432: 6001 str r1, [r0, #0]
8434: 184b adds r3, r1, r1
8436: 6043 str r3, [r0, #4]
8438: 4770 bx lr
843a: bf00 nop
0000843c <Rect::getWidth()>:
843c: 6800 ldr r0, [r0, #0]
843e: 4770 bx lr
00008440 <Rect::setHeight(int)>:
8440: 6041 str r1, [r0, #4]
8442: 4770 bx lr
00008444 <change(Rect*)>:
8444: 4b06 ldr r3, [pc, #24] (8460 <change(Rect*)+0x1c>)
8446: b510 push {r4, lr}
8448: 447b add r3, pc
844a: 681b ldr r3, [r3, #0]
844c: 4604 mov r4, r0
844e: 6818 ldr r0, [r3, #0]
8450: f7ff fff4 bl 843c <Rect::getWidth()>
8454: 4601 mov r1, r0
8456: 4620 mov r0, r4
8458: f7ff fff2 bl 8440 <Rect::setHeight(int)>
845c: bd10 pop {r4, pc}
845e: bf00 nop
8460: 00000c80 .word 0x00000c80
00008464 <global constructors keyed to dumpclient.cpp>:
8464: b510 push {r4, lr}
8466: 2008 movs r0, #8
8468: f7ff efc4 blx 83f4 <_start-0xc>
846c: 4604 mov r4, r0
846e: f7ff ffdf bl 8430 <Rect::Rect()>
8472: 4b02 ldr r3, [pc, #8] (847c <global constructors keyed to dumpclient.cpp+0x18>)
8474: 447b add r3, pc
8476: 681b ldr r3, [r3, #0]
8478: 601c str r4, [r3, #0]
847a: bd10 pop {r4, pc}
847c: 00000c54 .word 0x00000c54
00008480 <main>:
8480: b510 push {r4, lr}
8482: 2008 movs r0, #8
8484: f7ff efb6 blx 83f4 <_start-0xc>
8488: 4604 mov r4, r0
848a: f7ff ffd1 bl 8430 <Rect::Rect()>
848e: 4620 mov r0, r4
8490: f7ff ffd8 bl 8444 <change(Rect*)>
8494: 2000 movs r0, #0
8496: bd10 pop {r4, pc}
8498: f004 e51f blx 40ced8 <_stack+0x38ced8>
849c: 8481 strh r1, [r0, #36]
...
class CPoint
{
public:
CPoint(){width = 0; height =0;};
int getWidth();
int getHeight();
void testOne(int i, int );
private:
int width;
int height;
};
int CPoint::getWidth()
{
return width;
}
int CPoint::getHeight()
{
return height;
}
void CPoint::testOne(int i, int j)
{
i = getWidth();
j = getHeight();
}
int main()
{
CPoint *p = new CPoint();
p->testOne(2,3);
return 0;
}
asm
00008758 <CPoint::testOne(int, int)>:
8758: b510 push {r4, lr}
875a: 4604 mov r4, r0
875c: f7ff fff8 bl 8750 <CPoint::getWidth()>
8760: 4620 mov r0, r4
8762: f7ff fff7 bl 8754 <CPoint::getHeight()>
8766: 2300 movs r3, #0
8768: 2202 movs r2, #2
876a: 601a str r2, [r3, #0]
876c: bd10 pop {r4, pc}
876e: bf00 nop
07-19 23:35:58.160: INFO/DEBUG(2244): r0 00000000 r1 00000002 r2 00000002 r3 00000000
07-19 23:35:58.170: INFO/DEBUG(2244): r4 0012e008 r5 00000000 r6 00000001 r7 bec5fb6c
07-19 23:35:58.170: INFO/DEBUG(2244): r8 00000000 r9 00000000 10 00000000 fp 00000000
07-19 23:35:58.170: INFO/DEBUG(2244): ip bec5f570 sp bec5fb30 lr 00008767 pc 0000876a cpsr 20000030
for inline function
#include <stdio.h>
class CPoint
{
public:
CPoint(){width = 0; height =0;};
int getWidth(){int *p = NULL; return width+*p; }
int getHeight();
void testOne(int i, int );
private:
int width;
int height;
};
/*int CPoint::getWidth()
{
int *p = 0;
return width+*p;
} */
int CPoint::getHeight()
{
return height;
}
void CPoint::testOne(int i, int j)
{
i = getWidth();
j = getHeight();
printf("%d,%d\n",i,j);
}
int main()
{
CPoint *p = new CPoint();
p->testOne(2,3);
return 0;
}
asm
00008464 <CPoint::testOne(int, int)>:
8464: 2100 movs r1, #0
8466: b510 push {r4, lr}
8468: 680c ldr r4, [r1, #0]
846a: 6803 ldr r3, [r0, #0]
846c: 18e4 adds r4, r4, r3
846e: f7ff fff7 bl 8460 <CPoint::getHeight()>
8472: 4621 mov r1, r4
8474: 4602 mov r2, r0
8476: 4802 ldr r0, [pc, #8] (8480 <CPoint::testOne(int, int)+0x1c>)
8478: 4478 add r0, pc
847a: f7ff efcc blx 8414 <_start-0x1c>
847e: bd10 pop {r4, pc}
8480: 0000002c .word 0x0000002c