a.out: file format elf32-i386 Disassembly of section .init: 08048278 <_init>: 8048278: 53 push %ebx 8048279: 83 ec 08 sub $0x8,%esp 804827c: e8 8f 00 00 00 call 8048310 <__x86.get_pc_thunk.bx> 8048281: 81 c3 7f 1d 00 00 add $0x1d7f,%ebx 8048287: 8b 83 fc ff ff ff mov -0x4(%ebx),%eax 804828d: 85 c0 test %eax,%eax 804828f: 74 05 je 8048296 <_init+0x1e> 8048291: e8 2a 00 00 00 call 80482c0 <__gmon_start__@plt> 8048296: e8 45 01 00 00 call 80483e0 <__do_global_ctors_aux> 804829b: 83 c4 08 add $0x8,%esp 804829e: 5b pop %ebx 804829f: c3 ret Disassembly of section .plt: 080482a0 : 80482a0: ff 35 04 a0 04 08 pushl 0x804a004 80482a6: ff 25 08 a0 04 08 jmp *0x804a008 80482ac: 00 00 add %al,(%eax) ... 080482b0 : 80482b0: ff 25 0c a0 04 08 jmp *0x804a00c 80482b6: 68 00 00 00 00 push $0x0 80482bb: e9 e0 ff ff ff jmp 80482a0 <_init+0x28> 080482c0 <__gmon_start__@plt>: 80482c0: ff 25 10 a0 04 08 jmp *0x804a010 80482c6: 68 08 00 00 00 push $0x8 80482cb: e9 d0 ff ff ff jmp 80482a0 <_init+0x28> 080482d0 <__libc_start_main@plt>: 80482d0: ff 25 14 a0 04 08 jmp *0x804a014 80482d6: 68 10 00 00 00 push $0x10 80482db: e9 c0 ff ff ff jmp 80482a0 <_init+0x28> Disassembly of section .text: 080482e0 <_start>: 80482e0: 31 ed xor %ebp,%ebp 80482e2: 5e pop %esi 80482e3: 89 e1 mov %esp,%ecx 80482e5: 83 e4 f0 and $0xfffffff0,%esp 80482e8: 50 push %eax 80482e9: 54 push %esp 80482ea: 52 push %edx 80482eb: 68 30 85 04 08 push $0x8048530 80482f0: 68 d0 84 04 08 push $0x80484d0 80482f5: 51 push %ecx 80482f6: 56 push %esi 80482f7: 68 8c 84 04 08 push $0x804848c 80482fc: e8 cf ff ff ff call 80482d0 <__libc_start_main@plt> 8048301: f4 hlt 8048302: 66 90 xchg %ax,%ax 8048304: 66 90 xchg %ax,%ax 8048306: 66 90 xchg %ax,%ax 8048308: 66 90 xchg %ax,%ax 804830a: 66 90 xchg %ax,%ax 804830c: 66 90 xchg %ax,%ax 804830e: 66 90 xchg %ax,%ax 08048310 <__x86.get_pc_thunk.bx>: 8048310: 8b 1c 24 mov (%esp),%ebx 8048313: c3 ret 8048314: 66 90 xchg %ax,%ax 8048316: 66 90 xchg %ax,%ax 8048318: 66 90 xchg %ax,%ax 804831a: 66 90 xchg %ax,%ax 804831c: 66 90 xchg %ax,%ax 804831e: 66 90 xchg %ax,%ax 08048320 <__ctors>: 8048320: e8 34 01 00 00 call 8048459 <__x86.get_pc_thunk.ax> 8048325: 05 db 1c 00 00 add $0x1cdb,%eax 804832a: 56 push %esi 804832b: 53 push %ebx 804832c: 8d 64 24 fc lea -0x4(%esp),%esp 8048330: 8d 88 24 ff ff ff lea -0xdc(%eax),%ecx 8048336: 8b 11 mov (%ecx),%edx 8048338: 83 fa ff cmp $0xffffffff,%edx 804833b: 74 2b je 8048368 <__ctors+0x48> 804833d: 8d 5a ff lea -0x1(%edx),%ebx 8048340: 8d 34 91 lea (%ecx,%edx,4),%esi 8048343: 8d 04 9d 00 00 00 00 lea 0x0(,%ebx,4),%eax 804834a: 29 c6 sub %eax,%esi 804834c: 85 d2 test %edx,%edx 804834e: 74 0a je 804835a <__ctors+0x3a> 8048350: ff 14 9e call *(%esi,%ebx,4) 8048353: 85 db test %ebx,%ebx 8048355: 8d 5b ff lea -0x1(%ebx),%ebx 8048358: 75 f6 jne 8048350 <__ctors+0x30> 804835a: 8d 64 24 04 lea 0x4(%esp),%esp 804835e: 5b pop %ebx 804835f: 5e pop %esi 8048360: c3 ret 8048361: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi 8048368: 8b 71 04 mov 0x4(%ecx),%esi 804836b: 85 f6 test %esi,%esi 804836d: 74 eb je 804835a <__ctors+0x3a> 804836f: ba 01 00 00 00 mov $0x1,%edx 8048374: eb 04 jmp 804837a <__ctors+0x5a> 8048376: 66 90 xchg %ax,%ax 8048378: 89 c2 mov %eax,%edx 804837a: 8d 42 01 lea 0x1(%edx),%eax 804837d: 8b 1c 81 mov (%ecx,%eax,4),%ebx 8048380: 85 db test %ebx,%ebx 8048382: 75 f4 jne 8048378 <__ctors+0x58> 8048384: eb b7 jmp 804833d <__ctors+0x1d> 8048386: 8d 76 00 lea 0x0(%esi),%esi 8048389: 8d bc 27 00 00 00 00 lea 0x0(%edi,%eiz,1),%edi 08048390 <__dtors>: 8048390: e8 c4 00 00 00 call 8048459 <__x86.get_pc_thunk.ax> 8048395: 05 6b 1c 00 00 add $0x1c6b,%eax 804839a: 53 push %ebx 804839b: 8d 64 24 f8 lea -0x8(%esp),%esp 804839f: 8d 90 2c ff ff ff lea -0xd4(%eax),%edx 80483a5: 89 d3 mov %edx,%ebx 80483a7: 83 c3 04 add $0x4,%ebx 80483aa: 8b 42 04 mov 0x4(%edx),%eax 80483ad: 85 c0 test %eax,%eax 80483af: 74 1a je 80483cb <__dtors+0x3b> 80483b1: eb 0d jmp 80483c0 <__dtors+0x30> 80483b3: 90 nop 80483b4: 90 nop 80483b5: 90 nop 80483b6: 90 nop 80483b7: 90 nop 80483b8: 90 nop 80483b9: 90 nop 80483ba: 90 nop 80483bb: 90 nop 80483bc: 90 nop 80483bd: 90 nop 80483be: 90 nop 80483bf: 90 nop 80483c0: 8d 5b 04 lea 0x4(%ebx),%ebx 80483c3: ff d0 call *%eax 80483c5: 8b 03 mov (%ebx),%eax 80483c7: 85 c0 test %eax,%eax 80483c9: 75 f5 jne 80483c0 <__dtors+0x30> 80483cb: 8d 64 24 08 lea 0x8(%esp),%esp 80483cf: 5b pop %ebx 80483d0: c3 ret 80483d1: eb 0d jmp 80483e0 <__do_global_ctors_aux> 80483d3: 90 nop 80483d4: 90 nop 80483d5: 90 nop 80483d6: 90 nop 80483d7: 90 nop 80483d8: 90 nop 80483d9: 90 nop 80483da: 90 nop 80483db: 90 nop 80483dc: 90 nop 80483dd: 90 nop 80483de: 90 nop 80483df: 90 nop 080483e0 <__do_global_ctors_aux>: 80483e0: e8 74 00 00 00 call 8048459 <__x86.get_pc_thunk.ax> 80483e5: 05 1b 1c 00 00 add $0x1c1b,%eax 80483ea: 8b 90 24 00 00 00 mov 0x24(%eax),%edx 80483f0: 85 d2 test %edx,%edx 80483f2: 74 04 je 80483f8 <__do_global_ctors_aux+0x18> 80483f4: c3 ret 80483f5: 8d 76 00 lea 0x0(%esi),%esi 80483f8: c7 80 24 00 00 00 01 movl $0x1,0x24(%eax) 80483ff: 00 00 00 8048402: e9 19 ff ff ff jmp 8048320 <__ctors> 8048407: 89 f6 mov %esi,%esi 8048409: 8d bc 27 00 00 00 00 lea 0x0(%edi,%eiz,1),%edi 08048410 <__do_global_dtors_aux>: 8048410: 53 push %ebx 8048411: e8 fa fe ff ff call 8048310 <__x86.get_pc_thunk.bx> 8048416: 81 c3 ea 1b 00 00 add $0x1bea,%ebx 804841c: 8d 64 24 f8 lea -0x8(%esp),%esp 8048420: 8b 83 20 00 00 00 mov 0x20(%ebx),%eax 8048426: 85 c0 test %eax,%eax 8048428: 75 0f jne 8048439 <__do_global_dtors_aux+0x29> 804842a: e8 61 ff ff ff call 8048390 <__dtors> 804842f: c7 83 20 00 00 00 01 movl $0x1,0x20(%ebx) 8048436: 00 00 00 8048439: 8d 64 24 08 lea 0x8(%esp),%esp 804843d: 5b pop %ebx 804843e: c3 ret 804843f: 90 nop 08048440 <__call___do_global_ctors_aux>: 8048440: 8d 64 24 f4 lea -0xc(%esp),%esp 8048444: 8d 64 24 0c lea 0xc(%esp),%esp 8048448: c3 ret 8048449: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi 08048450 <__call___do_global_dtors_aux>: 8048450: 8d 64 24 f4 lea -0xc(%esp),%esp 8048454: 8d 64 24 0c lea 0xc(%esp),%esp 8048458: c3 ret 08048459 <__x86.get_pc_thunk.ax>: 8048459: 90 nop 804845a: 90 nop 804845b: 90 nop 804845c: 90 nop 804845d: 90 nop 804845e: 90 nop 804845f: 90 nop 8048460: 90 nop 8048461: 8b 04 24 mov (%esp),%eax 8048464: c3 ret 8048465: 66 90 xchg %ax,%ax 8048467: 90 nop 08048468 : int global = 8150; int sum(int,int); int sum(int a, int b){ 8048468: c8 08 00 00 enter $0x8,$0x0 int result = 451; 804846c: c7 45 fc c3 01 00 00 movl $0x1c3,-0x4(%ebp) result = a + b; 8048473: 8b 45 08 mov 0x8(%ebp),%eax 8048476: 03 45 0c add 0xc(%ebp),%eax 8048479: 89 45 fc mov %eax,-0x4(%ebp) return result; 804847c: 8b 45 fc mov -0x4(%ebp),%eax 804847f: 89 45 f8 mov %eax,-0x8(%ebp) 8048482: eb 00 jmp 8048484 } 8048484: 8b 45 f8 mov -0x8(%ebp),%eax 8048487: c9 leave 8048488: c3 ret 8048489: 8d 76 00 lea 0x0(%esi),%esi 0804848c
: int main(int argc, char **argv) { 804848c: c8 08 00 00 enter $0x8,$0x0 int local=4711; 8048490: c7 45 fc 67 12 00 00 movl $0x1267,-0x4(%ebp) printf("Hello, world!\nglobal=%d local=%d\n", global, local); 8048497: ff 75 fc pushl -0x4(%ebp) 804849a: ff 35 1c a0 04 08 pushl 0x804a01c 80484a0: 68 58 85 04 08 push $0x8048558 80484a5: e8 06 fe ff ff call 80482b0 80484aa: 83 c4 0c add $0xc,%esp local = sum(global, local); 80484ad: ff 75 fc pushl -0x4(%ebp) 80484b0: ff 35 1c a0 04 08 pushl 0x804a01c 80484b6: e8 ad ff ff ff call 8048468 80484bb: 83 c4 08 add $0x8,%esp 80484be: 89 45 fc mov %eax,-0x4(%ebp) return local; 80484c1: 8b 45 fc mov -0x4(%ebp),%eax 80484c4: 89 45 f8 mov %eax,-0x8(%ebp) 80484c7: eb 00 jmp 80484c9 } 80484c9: 8b 45 f8 mov -0x8(%ebp),%eax 80484cc: c9 leave 80484cd: c3 ret 80484ce: 66 90 xchg %ax,%ax 080484d0 <__libc_csu_init>: 80484d0: 55 push %ebp 80484d1: 57 push %edi 80484d2: 56 push %esi 80484d3: 53 push %ebx 80484d4: e8 37 fe ff ff call 8048310 <__x86.get_pc_thunk.bx> 80484d9: 81 c3 27 1b 00 00 add $0x1b27,%ebx 80484df: 83 ec 0c sub $0xc,%esp 80484e2: 8b 6c 24 20 mov 0x20(%esp),%ebp 80484e6: 8d b3 24 ff ff ff lea -0xdc(%ebx),%esi 80484ec: e8 87 fd ff ff call 8048278 <_init> 80484f1: 8d 83 24 ff ff ff lea -0xdc(%ebx),%eax 80484f7: 29 c6 sub %eax,%esi 80484f9: c1 fe 02 sar $0x2,%esi 80484fc: 85 f6 test %esi,%esi 80484fe: 74 25 je 8048525 <__libc_csu_init+0x55> 8048500: 31 ff xor %edi,%edi 8048502: 8d b6 00 00 00 00 lea 0x0(%esi),%esi 8048508: 83 ec 04 sub $0x4,%esp 804850b: ff 74 24 2c pushl 0x2c(%esp) 804850f: ff 74 24 2c pushl 0x2c(%esp) 8048513: 55 push %ebp 8048514: ff 94 bb 24 ff ff ff call *-0xdc(%ebx,%edi,4) 804851b: 83 c7 01 add $0x1,%edi 804851e: 83 c4 10 add $0x10,%esp 8048521: 39 f7 cmp %esi,%edi 8048523: 75 e3 jne 8048508 <__libc_csu_init+0x38> 8048525: 83 c4 0c add $0xc,%esp 8048528: 5b pop %ebx 8048529: 5e pop %esi 804852a: 5f pop %edi 804852b: 5d pop %ebp 804852c: c3 ret 804852d: 8d 76 00 lea 0x0(%esi),%esi 08048530 <__libc_csu_fini>: 8048530: f3 c3 repz ret Disassembly of section .fini: 08048534 <_fini>: 8048534: 53 push %ebx 8048535: 83 ec 08 sub $0x8,%esp 8048538: e8 d3 fd ff ff call 8048310 <__x86.get_pc_thunk.bx> 804853d: 81 c3 c3 1a 00 00 add $0x1ac3,%ebx 8048543: e8 c8 fe ff ff call 8048410 <__do_global_dtors_aux> 8048548: 83 c4 08 add $0x8,%esp 804854b: 5b pop %ebx 804854c: c3 ret