Understanding Function Call Stack

Understanding Function Call Stack

This writeup shows stack operations and behavior with a simple C Program, Assembly code and a dump of stack memory.

Contents:

• Code

• Analysis of Stack Operations

• Analysis of Stack memory dump

• Full C Code

• Full Objdump

C Code	Assembly Code
int main() { int a = 1; int b = 2; int c = 3; int d = 4; int e = 5; int f = 6; int g = 7; int h = 8; int ret = 0; ret = fun1(a, b, c, d, e, f, g, h); printf("output is %d", ret); }	0000000000400868 : 400868: push %rbp 400869: mov %rsp,%rbp 40086c: sub $0x30,%rsp 400870: movl $0x1,-0x4(%rbp) 400877: movl $0x2,-0x8(%rbp) 40087e: movl $0x3,-0xc(%rbp) 400885: movl $0x4,-0x10(%rbp) 40088c: movl $0x5,-0x14(%rbp) 400893: movl $0x6,-0x18(%rbp) 40089a: movl $0x7,-0x1c(%rbp) 4008a1: movl $0x8,-0x20(%rbp) 4008a8: movl $0x0,-0x24(%rbp) 4008af: mov -0x18(%rbp),%r9d 4008b3: mov -0x14(%rbp),%r8d 4008b7: mov -0x10(%rbp),%ecx 4008ba: mov -0xc(%rbp),%edx 4008bd: mov -0x8(%rbp),%esi 4008c0: mov -0x4(%rbp),%eax 4008c3: mov -0x20(%rbp),%edi 4008c6: push %rdi 4008c7: mov -0x1c(%rbp),%edi 4008ca: push %rdi 4008cb: mov %eax,%edi 4008cd: callq 4007fa 4008d2: add $0x10,%rsp 4008d6: mov %eax,-0x24(%rbp) 4008d9: mov -0x24(%rbp),%eax 4008dc: mov %eax,%esi 4008de: mov $0x400947,%edi 4008e3: mov $0x0,%eax 4008e8: callq 400450 4008ed: mov $0x0,%eax 4008f2: leaveq 4008f3: retq 4008f4: nopw %cs:0x0(%rax,%rax,1) 4008fb: 4008fe: xchg %ax,%ax
int fun1 (int a, int b, int c, int d, int e, int f, int g, int h) { int val = 1; int res = 0; int ret = 0; ret = fun2(e, f, g, h); res = ret + a + b + c + d; res = res + val; return res; }	00000000004007fa : 4007fa: push %rbp 4007fb: mov %rsp,%rbp 4007fe: sub $0x28,%rsp 400802: mov %edi,-0x14(%rbp) 400805: mov %esi,-0x18(%rbp) 400808: mov %edx,-0x1c(%rbp) 40080b: mov %ecx,-0x20(%rbp) 40080e: mov %r8d,-0x24(%rbp) 400812: mov %r9d,-0x28(%rbp) 400816: movl $0x1,-0x4(%rbp) 40081d: movl $0x0,-0x8(%rbp) 400824: movl $0x0,-0xc(%rbp) 40082b: mov 0x18(%rbp),%edx 40082e: mov -0x28(%rbp),%esi 400831: mov -0x24(%rbp),%eax 400834: mov %edx,%ecx 400836: mov 0x10(%rbp),%edx 400839: mov %eax,%edi 40083b: callq 4007a4 400840: mov %eax,-0xc(%rbp) 400843: mov -0xc(%rbp),%edx 400846: mov -0x14(%rbp),%eax 400849: add %eax,%edx 40084b: mov -0x18(%rbp),%eax 40084e: add %eax,%edx 400850: mov -0x1c(%rbp),%eax 400853: add %eax,%edx 400855: mov -0x20(%rbp),%eax 400858: add %edx,%eax 40085a: mov %eax,-0x8(%rbp) 40085d: mov -0x4(%rbp),%eax 400860: add %eax,-0x8(%rbp) 400863: mov -0x8(%rbp),%eax 400866: leaveq 400867: retq
int fun2 (int e, int f, int g, int h) { int val = 2; int res = 0; int ret = 0; ret = fun3(g, h); res = ret + e + f; res = res + val; return res; }	00000000004007a4 : 4007a4: push %rbp 4007a5: mov %rsp,%rbp 4007a8: sub $0x20,%rsp 4007ac: mov %edi,-0x14(%rbp) 4007af: mov %esi,-0x18(%rbp) 4007b2: mov %edx,-0x1c(%rbp) 4007b5: mov %ecx,-0x20(%rbp) 4007b8: movl $0x2,-0x4(%rbp) 4007bf: movl $0x0,-0x8(%rbp) 4007c6: movl $0x0,-0xc(%rbp) 4007cd: mov -0x20(%rbp),%edx 4007d0: mov -0x1c(%rbp),%eax 4007d3: mov %edx,%esi 4007d5: mov %eax,%edi 4007d7: callq 400776 4007dc: mov %eax,-0xc(%rbp) 4007df: mov -0xc(%rbp),%edx 4007e2: mov -0x14(%rbp),%eax 4007e5: add %eax,%edx 4007e7: mov -0x18(%rbp),%eax 4007ea: add %edx,%eax 4007ec: mov %eax,-0x8(%rbp) 4007ef: mov -0x4(%rbp),%eax 4007f2: add %eax,-0x8(%rbp) 4007f5: mov -0x8(%rbp),%eax 4007f8: leaveq 4007f9: retq
int fun3 (int g, int h) { int val = 3; int res = 0; res = g + h; res = res + val; return res; }	0000000000400776 : 400776: push %rbp 400777: mov %rsp,%rbp 40077a: mov %edi,-0x14(%rbp) 40077d: mov %esi,-0x18(%rbp) 400780: movl $0x3,-0x4(%rbp) 400787: movl $0x0,-0x8(%rbp) 40078e: mov -0x14(%rbp),%edx 400791: mov -0x18(%rbp),%eax 400794: add %edx,%eax 400796: mov %eax,-0x8(%rbp) 400799: mov -0x4(%rbp),%eax 40079c: add %eax,-0x8(%rbp) 40079f: mov -0x8(%rbp),%eax 4007a2: pop %rbp 4007a3: retq

Comilation Command: gcc -O0 -g callstatck_observe.c -o prg

     -O0 avoids optimization of code which makes assembly code more relatable to C Code.

Assembly code dumped with: objdump --disassemble-all prg 

Analysis of Stack Operations

400868: push   %rbp 

bp i.e. Base pointer points to the start of part of stack a function is going to use for its local variables or for placing arguments on stack before calling another function. While entering into a function, bp keeps base pointer of the caller function. So before making any changes, the value of bp is pushed on stack to keep bp of caller safe. This value is popped back into bp while returning from function.

400869: mov    %rsp,%rbp

This stores value of stack pointer (sp) in bp. Now bp has address of top of the stack.
Later values on stack are accessed using it.

40086c: sub    $0x30,%rsp

Depending on size of local variables, sp is reduced to reserve space for local variables. Because stack grows from higher memory to lower memory, local variables of called function are placed in lower memory compared to that of caller function.

400870: movl   $0x1,-0x4(%rbp)
400877: movl   $0x2,-0x8(%rbp)
40087e: movl   $0x3,-0xc(%rbp)
400885: movl   $0x4,-0x10(%rbp)
40088c: movl   $0x5,-0x14(%rbp)
400893: movl   $0x6,-0x18(%rbp)
40089a: movl   $0x7,-0x1c(%rbp)
4008a1: movl   $0x8,-0x20(%rbp)
4008a8: movl   $0x0,-0x24(%rbp) 

Create local variabes on stack.

4008af: mov    -0x18(%rbp),%r9d
4008b3: mov    -0x14(%rbp),%r8d
4008b7: mov    -0x10(%rbp),%ecx
4008ba: mov    -0xc(%rbp),%edx
4008bd: mov    -0x8(%rbp),%esi
4008c0: mov    -0x4(%rbp),%eax
4008c3: mov    -0x20(%rbp),%edi
4008c6: push   %rdi
4008c7: mov    -0x1c(%rbp),%edi
4008ca: push   %rdi
4008cb: mov    %eax,%edi

Before calling function, arguments to the function are stored on register in reverse order. If there are many arguments some arguments will go on stack.  On some platforms arguments may be stored on stack only.

4008cd: callq  4007fa

Function is called. this includes pushing address of next instruction (4008d2) on stack and jumping to function code. At the time of entering the called function, address of next instruction is at top of stack.

4008d2: add    $0x10,%rsp

Reset stack after function call, it's like removing arguments from stack after function call.

4008d6: mov    %eax,-0x24(%rbp)

eax has return value from the function which is getting stored in the local variable (ret).

4008ed: mov    $0x0,%eax

Before returning from Function, put return value in eax, which is 0 here.

4008f2: leaveq

Puts back value of bp from stack for caller function.

4008f3: retq

Jump to the address on stack, to continue from the next instructin after this functino in caller.

Analyzign Stack Dump

Breakpoint 1, main () at callstatck_observe.c:48
48          int a = 1;
(gdb) n
49          int b = 2;
(gdb)
50          int c = 3;
(gdb) info registers
rax            0x600ad0 6294224
rbx            0x0      0
rcx            0x7fffffffe8f0   140737488349424
rdx            0x7fffffffe980   140737488349568
rsi            0x7fffffffe970   140737488349552
rdi            0x1      1
rbp            0x7fffffffe910   0x7fffffffe910
rsp            0x7fffffffe8e0   0x7fffffffe8e0
r8             0x0      0
r9             0x7fffffffd16f   140737488343407
r10            0x44a9aa60       1151969888
r11            0x246    582
r12            0x7fffffffe968   140737488349544
r13            0x7fffffffe980   140737488349568
r14            0x7fffffffe970   140737488349552
r15            0x1      1
rip            0x40087e 0x40087e 

eflags         0x202    [ IF ]
cs             0x43     67
ss             0x3b     59
ds             
es             
fs             
gs             
(gdb) c
Continuing.

Breakpoint 2, fun1 (a=1, b=2, c=3, d=4, e=5, f=6, g=7, h=8)
                                 at callstatck_observe.c:34
34          int val = 1;
(gdb) n
35          int res = 0;
(gdb)
36          int ret = 0;
(gdb) info registers
rax            0x1      1
rbx            0x0      0
rcx            0x4      4
rdx            0x3      3
rsi            0x2      2
rdi            0x1      1
rbp            0x7fffffffe8c0   0x7fffffffe8c0
rsp            0x7fffffffe898   0x7fffffffe898
r8             0x5      5
r9             0x6      6
r10            0x44a9aa60       1151969888
r11            0x246    582
r12            0x7fffffffe968   140737488349544
r13            0x7fffffffe980   140737488349568
r14            0x7fffffffe970   140737488349552
r15            0x1      1
rip            0x400824 0x400824 
eflags         0x212    [ AF IF ]
cs             0x43     67
ss             0x3b     59
ds             
es             
fs             
gs             
(gdb) c
Continuing.

Breakpoint 3, fun2 (e=5, f=6, g=7, h=8) 
             at callstatck_observe.c:17
17          int val = 2;
(gdb) n
18          int res = 0;
(gdb)
19          int ret = 0;
(gdb) info registers
rax            0x5      5
rbx            0x0      0
rcx            0x8      8
rdx            0x7      7
rsi            0x6      6
rdi            0x5      5
rbp            0x7fffffffe888   0x7fffffffe888
rsp            0x7fffffffe868   0x7fffffffe868
r8             0x5      5
r9             0x6      6
r10            0x44a9aa60       1151969888
r11            0x246    582
r12            0x7fffffffe968   140737488349544
r13            0x7fffffffe980   140737488349568
r14            0x7fffffffe970   140737488349552
r15            0x1      1
rip            0x4007c6 0x4007c6 
eflags         0x202    [ IF ]
cs             0x43     67
ss             0x3b     59
ds             
es             
fs             
gs             
(gdb) c

Continuing.

Breakpoint 4, fun3 (g=7, h=8) at callstatck_observe.c:5
5           int val = 3;
(gdb) n
6           int res = 0;
(gdb)
8           res = g + h;
(gdb) info  registers
rax            0x7      7
rbx            0x0      0
rcx            0x8      8
rdx            0x8      8
rsi            0x8      8
rdi            0x7      7
rbp            0x7fffffffe858   0x7fffffffe858
rsp            0x7fffffffe858   0x7fffffffe858
r8             0x5      5
r9             0x6      6
r10            0x44a9aa60       1151969888
r11            0x246    582
r12            0x7fffffffe968   140737488349544
r13            0x7fffffffe980   140737488349568
r14            0x7fffffffe970   140737488349552
r15            0x1      1
rip            0x40078e 0x40078e 
eflags         0x202    [ IF ]
cs             0x43     67
ss             0x3b     59
ds             
es             
fs             
gs             
(gdb) n
9           res = res + val;

(gdb) p &res
$1 = (int *) 0x7fffffffe850
(gdb) x /40x 0x7fffffffe850
0x7fffffffe850: 0x0000000f   
0x7fffffffe854: 0x00000003
0x7fffffffe858: 0xffffe888<-fun3 
0x7fffffffe85c: 0x00007fff
0x7fffffffe860: 0x004007dc    
0x7fffffffe864: 0x00000000    
0x7fffffffe868: 0x00000008
0x7fffffffe86c: 0x00000007
0x7fffffffe870: 0x00000006
0x7fffffffe874: 0x00000005    
0x7fffffffe878: 0x00000000    
0x7fffffffe87c: 0x00000000
0x7fffffffe880: 0x00000000
0x7fffffffe884: 0x00000002    
0x7fffffffe888: 0xffffe8c0 <-fun2
0x7fffffffe88c: 0x00007fff
0x7fffffffe890: 0x00400840
0x7fffffffe894: 0x00000000    
0x7fffffffe898: 0x00000006
0x7fffffffe89c: 0x00000005
0x7fffffffe8a0: 0x00000004
0x7fffffffe8a4: 0x00000003
0x7fffffffe8a8: 0x00000002
0x7fffffffe8ac: 0x00000001
0x7fffffffe8b0: 0xffffe8f0    
0x7fffffffe8b4: 0x00000000
0x7fffffffe8b8: 0x00000000
0x7fffffffe8bc: 0x00000001
0x7fffffffe8c0: 0xffffe910<-fun1     
0x7fffffffe8c4: 0x00007fff    
0x7fffffffe8c8: 0x004008d2
0x7fffffffe8cc: 0x00000000
0x7fffffffe8d0: 0x00000007
0x7fffffffe8d4: 0x00000000
0x7fffffffe8d8: 0x00000008    
0x7fffffffe8dc: 0x00000000
0x7fffffffe8e0: 0xffffe910   
0x7fffffffe8e4: 0x00007fff  
0x7fffffffe8e8: 0x44bbddd3    
0x7fffffffe8ec: 0x00000000
0x7fffffffe8f0: 0x00000008
0x7fffffffe8f0: 0x00000007
0x7fffffffe8f0: 0x00000006
0x7fffffffe8f0: 0x00000005
0x7fffffffe900: 0x00000004
0x7fffffffe904: 0x00000003
0x7fffffffe908: 0x00000002
0x7fffffffe90c: 0x00000001
0x7fffffffe910: 0xffffe950    <-main
0x7fffffffe914: 0x00007fff  
0x7fffffffe918: 0x004005ef    
0x7fffffffe91c: 0x00000000
0x7fffffffe920: 0x00400480    
0x7fffffffe924: 0x00000000    
0x7fffffffe928: 0x00000000    
0x7fffffffe92c: 0x00000000
0x7fffffffe930: 0xffffe968    
0x7fffffffe934: 0x00007fff    
0x7fffffffe938: 0x00000000    
0x7fffffffe93c: 0x00000000
0x7fffffffe940: 0x00000000    
0x7fffffffe944: 0x00000000    
0x7fffffffe948: 0x00000000    
0x7fffffffe94c: 0x00000000
0x7fffffffe950: 0x00000000    
0x7fffffffe954: 0x00000000    
0x7fffffffe958: 0x44899000    
0x7fffffffe95c: 0x00000000
0x7fffffffe960: 0x00000000    
0x7fffffffe964: 0x00000000    
0x7fffffffe968: 0x00000001    
0x7fffffffe96c: 0x00000000
0x7fffffffe970: 0xffffebe8    
0x7fffffffe974: 0x00007fff    
0x7fffffffe978: 0x00000000    
0x7fffffffe97c: 0x00000000
0x7fffffffe980: 0xffffec1c    
0x7fffffffe984: 0x00007fff    
0x7fffffffe988: 0xffffec56    
0x7fffffffe98c: 0x00007fff

Arguments to be passed to Function
Local variables
Base Pointer
PC of Next Instruction
BP of Caller
Uninitialized Garbage
Arguments to this function 

Full C Code

#include <stdio.h>

int fun3 (int g, int h)
{
    int val = 3;
    int res = 0;

    res = g + h;
    res = res + val;

    return res;
}


int fun2 (int e, int f, int g, int h)
{
    int val = 2;
    int res = 0;
    int ret = 0;

    ret = fun3(g, h);

    res = ret + e + f;
    res = res + val;

    return res;
}

int fun1 (int a, int b, int c, int d,
          int e, int f, int g, int h)
{
    int val = 1;
    int res = 0;
    int ret = 0;

    ret = fun2(e, f, g, h);

    res = ret + a + b + c + d;
    res = res + val;

    return res;
}

int main()
{
    int a = 1;
    int b = 2;
    int c = 3;
    int d = 4;
    int e = 5;
    int f = 6;
    int g = 7;
    int h = 8;
    int ret = 0;

    ret = fun1(a, b, c, d, e, f, g, h);

    printf("output is %d", ret);

}

Full Objdump:

bin:     file format elf64-x86-64-freebsd

Disassembly of section .interp:

0000000000400200 <.interp>:
  400200: 2f                    (bad)  
  400201: 6c                    insb   (%dx),%es:(%rdi)
  400202: 69 62 65 78 65 63 2f  imul   $0x2f636578,0x65(%rdx),%esp
  400209: 6c                    insb   (%dx),%es:(%rdi)
  40020a: 64                    fs
  40020b: 2d 65 6c 66 2e        sub    $0x2e666c65,%eax
  400210: 73 6f                 jae    400281 
  400212: 2e 31 00              xor    %eax,%cs:(%rax)
Disassembly of section .note.tag:

0000000000400218 :
  400218: 08 00                 or     %al,(%rax)
  40021a: 00 00                 add    %al,(%rax)
  40021c: 04 00                 add    $0x0,%al
  40021e: 00 00                 add    %al,(%rax)
  400220: 01 00                 add    %eax,(%rax)
  400222: 00 00                 add    %al,(%rax)
  400224: 46 72 65              rex.RX jb     40028c 
  400227: 65                    gs
  400228: 42 53                 rex.X push   %rbx
  40022a: 44 00 e0              add    %r12b,%al
  40022d: 51                    push   %rcx
  40022e: 0f 00 08              str    (%rax)

0000000000400230 :
  400230: 08 00                 or     %al,(%rax)
  400232: 00 00                 add    %al,(%rax)
  400234: 04 00                 add    $0x0,%al
  400236: 00 00                 add    %al,(%rax)
  400238: 02 00                 add    (%rax),%al
  40023a: 00 00                 add    %al,(%rax)
  40023c: 46 72 65              rex.RX jb     4002a4 
  40023f: 65                    gs
  400240: 42 53                 rex.X push   %rbx
  400242: 44 00 00              add    %r8b,(%rax)
  400245: 00 00                 add    %al,(%rax)
 ...
Disassembly of section .hash:

0000000000400248 <.hash>:
  400248: 03 00                 add    (%rax),%eax
  40024a: 00 00                 add    %al,(%rax)
  40024c: 08 00                 or     %al,(%rax)
  40024e: 00 00                 add    %al,(%rax)
  400250: 00 00                 add    %al,(%rax)
  400252: 00 00                 add    %al,(%rax)
  400254: 07                    (bad)  
  400255: 00 00                 add    %al,(%rax)
  400257: 00 06                 add    %al,(%rsi)
 ...
  400265: 00 00                 add    %al,(%rax)
  400267: 00 02                 add    %al,(%rdx)
  400269: 00 00                 add    %al,(%rax)
  40026b: 00 01                 add    %al,(%rcx)
  40026d: 00 00                 add    %al,(%rax)
  40026f: 00 04 00              add    %al,(%rax,%rax,1)
  400272: 00 00                 add    %al,(%rax)
  400274: 03 00                 add    (%rax),%eax
  400276: 00 00                 add    %al,(%rax)
  400278: 05                    .byte 0x5
  400279: 00 00                 add    %al,(%rax)
 ...
Disassembly of section .dynsym:

0000000000400280 <.dynsym>:
 ...
  400298: 2f                    (bad)  
  400299: 00 00                 add    %al,(%rax)
  40029b: 00 12                 add    %dl,(%rdx)
 ...
  4002ad: 00 00                 add    %al,(%rax)
  4002af: 00 16                 add    %dl,(%rsi)
  4002b1: 00 00                 add    %al,(%rax)
  4002b3: 00 11                 add    %dl,(%rcx)
  4002b5: 00 16                 add    %dl,(%rsi)
  4002b7: 00 88 0c 60 00 00     add    %cl,0x600c(%rax)
  4002bd: 00 00                 add    %al,(%rax)
  4002bf: 00 08                 add    %cl,(%rax)
  4002c1: 00 00                 add    %al,(%rax)
  4002c3: 00 00                 add    %al,(%rax)
  4002c5: 00 00                 add    %al,(%rax)
  4002c7: 00 1e                 add    %bl,(%rsi)
  4002c9: 00 00                 add    %al,(%rax)
  4002cb: 00 12                 add    %dl,(%rdx)
 ...
  4002dd: 00 00                 add    %al,(%rax)
  4002df: 00 36                 add    %dh,(%rsi)
  4002e1: 00 00                 add    %al,(%rax)
  4002e3: 00 10                 add    %dl,(%rax)
  4002e5: 00 16                 add    %dl,(%rsi)
  4002e7: 00 90 0c 60 00 00     add    %dl,0x600c(%rax)
 ...
  4002f5: 00 00                 add    %al,(%rax)
  4002f7: 00 31                 add    %dh,(%rcx)
  4002f9: 00 00                 add    %al,(%rax)
  4002fb: 00 12                 add    %dl,(%rdx)
 ...
  40030d: 00 00                 add    %al,(%rax)
  40030f: 00 0b                 add    %cl,(%rbx)
  400311: 00 00                 add    %al,(%rax)
  400313: 00 11                 add    %dl,(%rcx)
  400315: 00 15 00 68 0c 60     add    %dl,0x600c6800(%rip)        # 604c6b1b <_end x5fec5e8b="">
  40031b: 00 00                 add    %al,(%rax)
  40031d: 00 00                 add    %al,(%rax)
  40031f: 00 08                 add    %cl,(%rax)
  400321: 00 00                 add    %al,(%rax)
  400323: 00 00                 add    %al,(%rax)
  400325: 00 00                 add    %al,(%rax)
  400327: 00 25 00 00 00 12     add    %ah,0x12000000(%rip)        # 1240032d <_end x11dff69d="">
 ...
Disassembly of section .dynstr:

0000000000400340 <.dynstr>:
  400340: 00 6c 69 62           add    %ch,0x62(%rcx,%rbp,2)
  400344: 63 2e                 movslq (%rsi),%ebp
  400346: 73 6f                 jae    4003b7 
  400348: 2e                    cs
  400349: 37                    (bad)  
  40034a: 00 5f 5f              add    %bl,0x5f(%rdi)
  40034d: 70 72                 jo     4003c1 
  40034f: 6f                    outsl  %ds:(%rsi),(%dx)
  400350: 67 6e                 addr32 outsb %ds:(%esi),(%dx)
  400352: 61                    (bad)  
  400353: 6d                    insl   (%dx),%es:(%rdi)
  400354: 65 00 65 6e           add    %ah,%gs:0x6e(%rbp)
  400358: 76 69                 jbe    4003c3 
  40035a: 72 6f                 jb     4003cb 
  40035c: 6e                    outsb  %ds:(%rsi),(%dx)
  40035d: 00 70 72              add    %dh,0x72(%rax)
  400360: 69 6e 74 66 00 5f 69  imul   $0x695f0066,0x74(%rsi),%ebp
  400367: 6e                    outsb  %ds:(%rsi),(%dx)
  400368: 69 74 5f 74 6c 73 00  imul   $0x6100736c,0x74(%rdi,%rbx,2),%esi
  40036f: 61 
  400370: 74 65                 je     4003d7 
  400372: 78 69                 js     4003dd 
  400374: 74 00                 je     400376 
  400376: 5f                    pop    %rdi
  400377: 65 6e                 outsb  %gs:(%rsi),(%dx)
  400379: 64 00 46 42           add    %al,%fs:0x42(%rsi)
  40037d: 53                    push   %rbx
  40037e: 44 5f                 rex.R pop    %rdi
  400380: 31 2e                 xor    %ebp,(%rsi)
  400382: 30 00                 xor    %al,(%rax)
Disassembly of section .gnu.version:

0000000000400384 <.gnu.version>:
  400384: 00 00                 add    %al,(%rax)
  400386: 02 00                 add    (%rax),%al
  400388: 01 00                 add    %eax,(%rax)
  40038a: 02 00                 add    (%rax),%al
  40038c: 01 00                 add    %eax,(%rax)
  40038e: 02 00                 add    (%rax),%al
  400390: 01 00                 add    %eax,(%rax)
  400392: 02 00                 add    (%rax),%al
Disassembly of section .gnu.version_r:

0000000000400398 <.gnu.version_r>:
  400398: 01 00                 add    %eax,(%rax)
  40039a: 01 00                 add    %eax,(%rax)
  40039c: 01 00                 add    %eax,(%rax)
  40039e: 00 00                 add    %al,(%rax)
  4003a0: 10 00                 adc    %al,(%rax)
  4003a2: 00 00                 add    %al,(%rax)
  4003a4: 00 00                 add    %al,(%rax)
  4003a6: 00 00                 add    %al,(%rax)
  4003a8: b0 28                 mov    $0x28,%al
  4003aa: 7a 07                 jp     4003b3 
  4003ac: 00 00                 add    %al,(%rax)
  4003ae: 02 00                 add    (%rax),%al
  4003b0: 3b 00                 cmp    (%rax),%eax
  4003b2: 00 00                 add    %al,(%rax)
  4003b4: 00 00                 add    %al,(%rax)
 ...
Disassembly of section .rela.plt:

00000000004003b8 <.rela.plt>:
  4003b8: 48 0c 60              rex.W or     $0x60,%al
  4003bb: 00 00                 add    %al,(%rax)
  4003bd: 00 00                 add    %al,(%rax)
  4003bf: 00 07                 add    %al,(%rdi)
  4003c1: 00 00                 add    %al,(%rax)
  4003c3: 00 01                 add    %al,(%rcx)
 ...
  4003cd: 00 00                 add    %al,(%rax)
  4003cf: 00 50 0c              add    %dl,0xc(%rax)
  4003d2: 60                    (bad)  
  4003d3: 00 00                 add    %al,(%rax)
  4003d5: 00 00                 add    %al,(%rax)
  4003d7: 00 07                 add    %al,(%rdi)
  4003d9: 00 00                 add    %al,(%rax)
  4003db: 00 03                 add    %al,(%rbx)
 ...
  4003e5: 00 00                 add    %al,(%rax)
  4003e7: 00 58 0c              add    %bl,0xc(%rax)
  4003ea: 60                    (bad)  
  4003eb: 00 00                 add    %al,(%rax)
  4003ed: 00 00                 add    %al,(%rax)
  4003ef: 00 07                 add    %al,(%rdi)
  4003f1: 00 00                 add    %al,(%rax)
  4003f3: 00 05 00 00 00 00     add    %al,0x0(%rip)        # 4003f9 
  4003f9: 00 00                 add    %al,(%rax)
  4003fb: 00 00                 add    %al,(%rax)
  4003fd: 00 00                 add    %al,(%rax)
  4003ff: 00 60 0c              add    %ah,0xc(%rax)
  400402: 60                    (bad)  
  400403: 00 00                 add    %al,(%rax)
  400405: 00 00                 add    %al,(%rax)
  400407: 00 07                 add    %al,(%rdi)
  400409: 00 00                 add    %al,(%rax)
  40040b: 00 07                 add    %al,(%rdi)
 ...
Disassembly of section .init:

0000000000400418 <_init>:
  400418: 48 83 ec 08           sub    $0x8,%rsp
  40041c: e8 2f 03 00 00        callq  400750 
  400421: e8 da 04 00 00        callq  400900 <__do_global_ctors_aux>
  400426: 48 83 c4 08           add    $0x8,%rsp
  40042a: c3                    retq   
Disassembly of section .plt:

0000000000400430 :
  400430: ff 35 02 08 20 00     pushq  0x200802(%rip)        # 600c38 <_global_offset_table_ x8="">
  400436: ff 25 04 08 20 00     jmpq   *0x200804(%rip)        # 600c40 <_global_offset_table_ x10="">
  40043c: 0f 1f 40 00           nopl   0x0(%rax)

0000000000400440 :
  400440: ff 25 02 08 20 00     jmpq   *0x200802(%rip)        # 600c48 <_global_offset_table_ x18="">
  400446: 68 00 00 00 00        pushq  $0x0
  40044b: e9 e0 ff ff ff        jmpq   400430 <_init x18="">

0000000000400450 :
  400450: ff 25 fa 07 20 00     jmpq   *0x2007fa(%rip)        # 600c50 <_global_offset_table_ x20="">
  400456: 68 01 00 00 00        pushq  $0x1
  40045b: e9 d0 ff ff ff        jmpq   400430 <_init x18="">

0000000000400460 :
  400460: ff 25 f2 07 20 00     jmpq   *0x2007f2(%rip)        # 600c58 <_global_offset_table_ x28="">
  400466: 68 02 00 00 00        pushq  $0x2
  40046b: e9 c0 ff ff ff        jmpq   400430 <_init x18="">

0000000000400470 <_init_tls plt="">:
  400470: ff 25 ea 07 20 00     jmpq   *0x2007ea(%rip)        # 600c60 <_global_offset_table_ x30="">
  400476: 68 03 00 00 00        pushq  $0x3
  40047b: e9 b0 ff ff ff        jmpq   400430 <_init x18="">
Disassembly of section .text:

0000000000400480 <_start>:
  400480: 55                    push   %rbp
  400481: 48 89 e5              mov    %rsp,%rbp
  400484: 41 57                 push   %r15
  400486: 41 56                 push   %r14
  400488: 41 55                 push   %r13
  40048a: 41 54                 push   %r12
  40048c: 53                    push   %rbx
  40048d: 50                    push   %rax
  40048e: 49 89 fe              mov    %rdi,%r14
  400491: 4d 8b 3e              mov    (%r14),%r15
  400494: 49 63 c7              movslq %r15d,%rax
  400497: 4d 8d 6c c6 10        lea    0x10(%r14,%rax,8),%r13
  40049c: 48 83 3d e4 07 20 00  cmpq   $0x0,0x2007e4(%rip)        # 600c88 
  4004a3: 00 
  4004a4: 75 07                 jne    4004ad <_start x2d="">
  4004a6: 4c 89 2d db 07 20 00  mov    %r13,0x2007db(%rip)        # 600c88 
  4004ad: 49 83 c6 08           add    $0x8,%r14
  4004b1: 45 85 ff              test   %r15d,%r15d
  4004b4: 7e 25                 jle    4004db <_start x5b="">
  4004b6: 49 8b 06              mov    (%r14),%rax
  4004b9: 48 85 c0              test   %rax,%rax
  4004bc: 75 05                 jne    4004c3 <_start x43="">
  4004be: eb 1b                 jmp    4004db <_start x5b="">
  4004c0: 48 ff c0              inc    %rax
  4004c3: 48 89 05 9e 07 20 00  mov    %rax,0x20079e(%rip)        # 600c68 <__progname>
  4004ca: eb 04                 jmp    4004d0 <_start x50="">
  4004cc: 48 ff c0              inc    %rax
  4004cf: 90                    nop    
  4004d0: 8a 08                 mov    (%rax),%cl
  4004d2: 80 f9 2f              cmp    $0x2f,%cl
  4004d5: 74 e9                 je     4004c0 <_start x40="">
  4004d7: 84 c9                 test   %cl,%cl
  4004d9: 75 f1                 jne    4004cc <_start x4c="">
  4004db: b8 d0 0a 60 00        mov    $0x600ad0,%eax
  4004e0: 48 85 c0              test   %rax,%rax
  4004e3: 74 0a                 je     4004ef <_start x6f="">
  4004e5: 48 89 f7              mov    %rsi,%rdi
  4004e8: e8 53 ff ff ff        callq  400440 
  4004ed: eb 05                 jmp    4004f4 <_start x74="">
  4004ef: e8 7c ff ff ff        callq  400470 <_init_tls plt="">
  4004f4: b8 d0 0a 60 00        mov    $0x600ad0,%eax
  4004f9: 48 85 c0              test   %rax,%rax
  4004fc: 0f 85 df 00 00 00     jne    4005e1 <_start x161="">
  400502: bf 00 06 40 00        mov    $0x400600,%edi
  400507: e8 34 ff ff ff        callq  400440 
  40050c: 45 31 e4              xor    %r12d,%r12d
  40050f: b8 a4 0a 60 00        mov    $0x600aa4,%eax
  400514: b9 a4 0a 60 00        mov    $0x600aa4,%ecx
  400519: 48 29 c1              sub    %rax,%rcx
  40051c: 48 89 c8              mov    %rcx,%rax
  40051f: 48 c1 f8 3f           sar    $0x3f,%rax
  400523: 48 c1 e8 3d           shr    $0x3d,%rax
  400527: 48 01 c8              add    %rcx,%rax
  40052a: 48 c1 f8 03           sar    $0x3,%rax
  40052e: 74 41                 je     400571 <_start xf1="">
  400530: b8 a4 0a 60 00        mov    $0x600aa4,%eax
  400535: b9 a4 0a 60 00        mov    $0x600aa4,%ecx
  40053a: 48 29 c1              sub    %rax,%rcx
  40053d: 48 89 cb              mov    %rcx,%rbx
  400540: 48 c1 fb 3f           sar    $0x3f,%rbx
  400544: 48 c1 eb 3d           shr    $0x3d,%rbx
  400548: 48 01 cb              add    %rcx,%rbx
  40054b: 48 c1 fb 03           sar    $0x3,%rbx
  40054f: 90                    nop    
  400550: 4a 8b 04 e5 a4 0a 60  mov    0x600aa4(,%r12,8),%rax
  400557: 00 
  400558: 48 83 f8 02           cmp    $0x2,%rax
  40055c: 72 0b                 jb     400569 <_start xe9="">
  40055e: 44 89 ff              mov    %r15d,%edi
  400561: 4c 89 f6              mov    %r14,%rsi
  400564: 4c 89 ea              mov    %r13,%rdx
  400567: ff d0                 callq  *%rax
  400569: 49 ff c4              inc    %r12
  40056c: 49 39 dc              cmp    %rbx,%r12
  40056f: 72 df                 jb     400550 <_start xd0="">
  400571: e8 a2 fe ff ff        callq  400418 <_init>
  400576: 31 db                 xor    %ebx,%ebx
  400578: b8 a4 0a 60 00        mov    $0x600aa4,%eax
  40057d: b9 a4 0a 60 00        mov    $0x600aa4,%ecx
  400582: 48 29 c1              sub    %rax,%rcx
  400585: 48 89 c8              mov    %rcx,%rax
  400588: 48 c1 f8 3f           sar    $0x3f,%rax
  40058c: 48 c1 e8 3d           shr    $0x3d,%rax
  400590: 48 01 c8              add    %rcx,%rax
  400593: 48 c1 f8 03           sar    $0x3,%rax
  400597: 74 48                 je     4005e1 <_start x161="">
  400599: b8 a4 0a 60 00        mov    $0x600aa4,%eax
  40059e: b9 a4 0a 60 00        mov    $0x600aa4,%ecx
  4005a3: 48 29 c1              sub    %rax,%rcx
  4005a6: 49 89 cc              mov    %rcx,%r12
  4005a9: 49 c1 fc 3f           sar    $0x3f,%r12
  4005ad: 49 c1 ec 3d           shr    $0x3d,%r12
  4005b1: 49 01 cc              add    %rcx,%r12
  4005b4: 49 c1 fc 03           sar    $0x3,%r12
  4005b8: 0f 1f 84 00 00 00 00  nopl   0x0(%rax,%rax,1)
  4005bf: 00 
  4005c0: 48 8b 04 dd a4 0a 60  mov    0x600aa4(,%rbx,8),%rax
  4005c7: 00 
  4005c8: 48 83 f8 02           cmp    $0x2,%rax
  4005cc: 72 0b                 jb     4005d9 <_start x159="">
  4005ce: 44 89 ff              mov    %r15d,%edi
  4005d1: 4c 89 f6              mov    %r14,%rsi
  4005d4: 4c 89 ea              mov    %r13,%rdx
  4005d7: ff d0                 callq  *%rax
  4005d9: 48 ff c3              inc    %rbx
  4005dc: 4c 39 e3              cmp    %r12,%rbx
  4005df: 72 df                 jb     4005c0 <_start x140="">
  4005e1: 44 89 ff              mov    %r15d,%edi
  4005e4: 4c 89 f6              mov    %r14,%rsi
  4005e7: 4c 89 ea              mov    %r13,%rdx
  4005ea: e8 79 02 00 00        callq  400868 

  4005ef: 89 c7                 mov    %eax,%edi
  4005f1: e8 6a fe ff ff        callq  400460 
  4005f6: 66 2e 0f 1f 84 00 00  nopw   %cs:0x0(%rax,%rax,1)
  4005fd: 00 00 00 

0000000000400600 :
  400600: 55                    push   %rbp
  400601: 48 89 e5              mov    %rsp,%rbp
  400604: 53                    push   %rbx
  400605: 50                    push   %rax
  400606: b8 a4 0a 60 00        mov    $0x600aa4,%eax
  40060b: b9 a4 0a 60 00        mov    $0x600aa4,%ecx
  400610: 48 29 c1              sub    %rax,%rcx
  400613: 48 89 cb              mov    %rcx,%rbx
  400616: 48 c1 fb 3f           sar    $0x3f,%rbx
  40061a: 48 c1 eb 3d           shr    $0x3d,%rbx
  40061e: 48 01 cb              add    %rcx,%rbx
  400621: 48 c1 fb 03           sar    $0x3,%rbx
  400625: 74 21                 je     400648 
  400627: 66 0f 1f 84 00 00 00  nopw   0x0(%rax,%rax,1)
  40062e: 00 00 
  400630: 48 8b 04 dd 9c 0a 60  mov    0x600a9c(,%rbx,8),%rax
  400637: 00 
  400638: 48 ff cb              dec    %rbx
  40063b: 48 83 f8 01           cmp    $0x1,%rax
  40063f: 76 02                 jbe    400643 
  400641: ff d0                 callq  *%rax
  400643: 48 85 db              test   %rbx,%rbx
  400646: 75 e8                 jne    400630 
  400648: 48 83 c4 08           add    $0x8,%rsp
  40064c: 5b                    pop    %rbx
  40064d: 5d                    pop    %rbp
  40064e: e9 e5 02 00 00        jmpq   400938 <_fini>
  400653: 90                    nop    
  400654: 66 2e 0f 1f 84 00 00  nopw   %cs:0x0(%rax,%rax,1)
  40065b: 00 00 00 
  40065e: 66 90                 xchg   %ax,%ax

0000000000400660 :
  400660: b8 7f 0c 60 00        mov    $0x600c7f,%eax
  400665: 55                    push   %rbp
  400666: 48 2d 78 0c 60 00     sub    $0x600c78,%rax
  40066c: 48 83 f8 0e           cmp    $0xe,%rax
  400670: 48 89 e5              mov    %rsp,%rbp
  400673: 76 1b                 jbe    400690 
  400675: b8 00 00 00 00        mov    $0x0,%eax
  40067a: 48 85 c0              test   %rax,%rax
  40067d: 74 11                 je     400690 
  40067f: 5d                    pop    %rbp
  400680: bf 78 0c 60 00        mov    $0x600c78,%edi
  400685: ff e0                 jmpq   *%rax
  400687: 66 0f 1f 84 00 00 00  nopw   0x0(%rax,%rax,1)
  40068e: 00 00 
  400690: 5d                    pop    %rbp
  400691: c3                    retq   
  400692: 0f 1f 40 00           nopl   0x0(%rax)
  400696: 66 2e 0f 1f 84 00 00  nopw   %cs:0x0(%rax,%rax,1)
  40069d: 00 00 00 

00000000004006a0 :
  4006a0: be 78 0c 60 00        mov    $0x600c78,%esi
  4006a5: 55                    push   %rbp
  4006a6: 48 81 ee 78 0c 60 00  sub    $0x600c78,%rsi
  4006ad: 48 c1 fe 03           sar    $0x3,%rsi
  4006b1: 48 89 e5              mov    %rsp,%rbp
  4006b4: 48 89 f0              mov    %rsi,%rax
  4006b7: 48 c1 e8 3f           shr    $0x3f,%rax
  4006bb: 48 01 c6              add    %rax,%rsi
  4006be: 48 d1 fe              sar    %rsi
  4006c1: 74 15                 je     4006d8 
  4006c3: b8 00 00 00 00        mov    $0x0,%eax
  4006c8: 48 85 c0              test   %rax,%rax
  4006cb: 74 0b                 je     4006d8 
  4006cd: 5d                    pop    %rbp
  4006ce: bf 78 0c 60 00        mov    $0x600c78,%edi
  4006d3: ff e0                 jmpq   *%rax
  4006d5: 0f 1f 00              nopl   (%rax)
  4006d8: 5d                    pop    %rbp
  4006d9: c3                    retq   
  4006da: 66 0f 1f 44 00 00     nopw   0x0(%rax,%rax,1)

00000000004006e0 <__do_global_dtors_aux>:
  4006e0: 80 3d 91 05 20 00 00  cmpb   $0x0,0x200591(%rip)        # 600c78 <__tmc_end__>
  4006e7: 75 62                 jne    40074b <__do_global_dtors_aux x6b="">
  4006e9: 55                    push   %rbp
  4006ea: 48 8b 05 8f 05 20 00  mov    0x20058f(%rip),%rax        # 600c80 
  4006f1: 48 89 e5              mov    %rsp,%rbp
  4006f4: 41 54                 push   %r12
  4006f6: 53                    push   %rbx
  4006f7: bb c0 0a 60 00        mov    $0x600ac0,%ebx
  4006fc: 41 bc b8 0a 60 00     mov    $0x600ab8,%r12d
  400702: 48 81 eb b8 0a 60 00  sub    $0x600ab8,%rbx
  400709: 48 c1 fb 03           sar    $0x3,%rbx
  40070d: 48 83 eb 01           sub    $0x1,%rbx
  400711: 48 39 d8              cmp    %rbx,%rax
  400714: 73 25                 jae    40073b <__do_global_dtors_aux x5b="">
  400716: 66 2e 0f 1f 84 00 00  nopw   %cs:0x0(%rax,%rax,1)
  40071d: 00 00 00 
  400720: 48 83 c0 01           add    $0x1,%rax
  400724: 48 89 05 55 05 20 00  mov    %rax,0x200555(%rip)        # 600c80 
  40072b: 41 ff 14 c4           callq  *(%r12,%rax,8)
  40072f: 48 8b 05 4a 05 20 00  mov    0x20054a(%rip),%rax        # 600c80 
  400736: 48 39 d8              cmp    %rbx,%rax
  400739: 72 e5                 jb     400720 <__do_global_dtors_aux x40="">
  40073b: e8 20 ff ff ff        callq  400660 
  400740: 5b                    pop    %rbx
  400741: 41 5c                 pop    %r12
  400743: 5d                    pop    %rbp
  400744: c6 05 2d 05 20 00 01  movb   $0x1,0x20052d(%rip)        # 600c78 <__tmc_end__>
  40074b: f3 c3                 repz retq 
  40074d: 0f 1f 00              nopl   (%rax)

0000000000400750 :
  400750: bf c8 0a 60 00        mov    $0x600ac8,%edi
  400755: 48 83 3f 00           cmpq   $0x0,(%rdi)
  400759: 75 05                 jne    400760 
  40075b: e9 40 ff ff ff        jmpq   4006a0 
  400760: b8 00 00 00 00        mov    $0x0,%eax
  400765: 48 85 c0              test   %rax,%rax
  400768: 74 f1                 je     40075b 
  40076a: 55                    push   %rbp
  40076b: 48 89 e5              mov    %rsp,%rbp
  40076e: ff d0                 callq  *%rax
  400770: 5d                    pop    %rbp
  400771: e9 2a ff ff ff        jmpq   4006a0 

0000000000400776 :
  400776: 55                    push   %rbp
  400777: 48 89 e5              mov    %rsp,%rbp
  40077a: 89 7d ec              mov    %edi,-0x14(%rbp)
  40077d: 89 75 e8              mov    %esi,-0x18(%rbp)
  400780: c7 45 fc 03 00 00 00  movl   $0x3,-0x4(%rbp)
  400787: c7 45 f8 00 00 00 00  movl   $0x0,-0x8(%rbp)
  40078e: 8b 55 ec              mov    -0x14(%rbp),%edx
  400791: 8b 45 e8              mov    -0x18(%rbp),%eax
  400794: 01 d0                 add    %edx,%eax
  400796: 89 45 f8              mov    %eax,-0x8(%rbp)
  400799: 8b 45 fc              mov    -0x4(%rbp),%eax
  40079c: 01 45 f8              add    %eax,-0x8(%rbp)
  40079f: 8b 45 f8              mov    -0x8(%rbp),%eax
  4007a2: 5d                    pop    %rbp
  4007a3: c3                    retq   

00000000004007a4 :
  4007a4: 55                    push   %rbp
  4007a5: 48 89 e5              mov    %rsp,%rbp
  4007a8: 48 83 ec 20           sub    $0x20,%rsp
  4007ac: 89 7d ec              mov    %edi,-0x14(%rbp)
  4007af: 89 75 e8              mov    %esi,-0x18(%rbp)
  4007b2: 89 55 e4              mov    %edx,-0x1c(%rbp)
  4007b5: 89 4d e0              mov    %ecx,-0x20(%rbp)
  4007b8: c7 45 fc 02 00 00 00  movl   $0x2,-0x4(%rbp)
  4007bf: c7 45 f8 00 00 00 00  movl   $0x0,-0x8(%rbp)
  4007c6: c7 45 f4 00 00 00 00  movl   $0x0,-0xc(%rbp)
  4007cd: 8b 55 e0              mov    -0x20(%rbp),%edx
  4007d0: 8b 45 e4              mov    -0x1c(%rbp),%eax
  4007d3: 89 d6                 mov    %edx,%esi
  4007d5: 89 c7                 mov    %eax,%edi
  4007d7: e8 9a ff ff ff        callq  400776 
  4007dc: 89 45 f4              mov    %eax,-0xc(%rbp)
  4007df: 8b 55 f4              mov    -0xc(%rbp),%edx
  4007e2: 8b 45 ec              mov    -0x14(%rbp),%eax
  4007e5: 01 c2                 add    %eax,%edx
  4007e7: 8b 45 e8              mov    -0x18(%rbp),%eax
  4007ea: 01 d0                 add    %edx,%eax
  4007ec: 89 45 f8              mov    %eax,-0x8(%rbp)
  4007ef: 8b 45 fc              mov    -0x4(%rbp),%eax
  4007f2: 01 45 f8              add    %eax,-0x8(%rbp)
  4007f5: 8b 45 f8              mov    -0x8(%rbp),%eax
  4007f8: c9                    leaveq 
  4007f9: c3                    retq   

00000000004007fa :
  4007fa: 55                    push   %rbp
  4007fb: 48 89 e5              mov    %rsp,%rbp
  4007fe: 48 83 ec 28           sub    $0x28,%rsp
  400802: 89 7d ec              mov    %edi,-0x14(%rbp)
  400805: 89 75 e8              mov    %esi,-0x18(%rbp)
  400808: 89 55 e4              mov    %edx,-0x1c(%rbp)
  40080b: 89 4d e0              mov    %ecx,-0x20(%rbp)
  40080e: 44 89 45 dc           mov    %r8d,-0x24(%rbp)
  400812: 44 89 4d d8           mov    %r9d,-0x28(%rbp)
  400816: c7 45 fc 01 00 00 00  movl   $0x1,-0x4(%rbp)
  40081d: c7 45 f8 00 00 00 00  movl   $0x0,-0x8(%rbp)
  400824: c7 45 f4 00 00 00 00  movl   $0x0,-0xc(%rbp)
  40082b: 8b 55 18              mov    0x18(%rbp),%edx
  40082e: 8b 75 d8              mov    -0x28(%rbp),%esi
  400831: 8b 45 dc              mov    -0x24(%rbp),%eax
  400834: 89 d1                 mov    %edx,%ecx
  400836: 8b 55 10              mov    0x10(%rbp),%edx
  400839: 89 c7                 mov    %eax,%edi
  40083b: e8 64 ff ff ff        callq  4007a4 
  400840: 89 45 f4              mov    %eax,-0xc(%rbp)
  400843: 8b 55 f4              mov    -0xc(%rbp),%edx
  400846: 8b 45 ec              mov    -0x14(%rbp),%eax
  400849: 01 c2                 add    %eax,%edx
  40084b: 8b 45 e8              mov    -0x18(%rbp),%eax
  40084e: 01 c2                 add    %eax,%edx
  400850: 8b 45 e4              mov    -0x1c(%rbp),%eax
  400853: 01 c2                 add    %eax,%edx
  400855: 8b 45 e0              mov    -0x20(%rbp),%eax
  400858: 01 d0                 add    %edx,%eax
  40085a: 89 45 f8              mov    %eax,-0x8(%rbp)
  40085d: 8b 45 fc              mov    -0x4(%rbp),%eax
  400860: 01 45 f8              add    %eax,-0x8(%rbp)
  400863: 8b 45 f8              mov    -0x8(%rbp),%eax
  400866: c9                    leaveq 
  400867: c3                    retq   

0000000000400868 
:
  400868: 55                    push   %rbp
  400869: 48 89 e5              mov    %rsp,%rbp
  40086c: 48 83 ec 30           sub    $0x30,%rsp
  400870: c7 45 fc 01 00 00 00  movl   $0x1,-0x4(%rbp)
  400877: c7 45 f8 02 00 00 00  movl   $0x2,-0x8(%rbp)
  40087e: c7 45 f4 03 00 00 00  movl   $0x3,-0xc(%rbp)
  400885: c7 45 f0 04 00 00 00  movl   $0x4,-0x10(%rbp)
  40088c: c7 45 ec 05 00 00 00  movl   $0x5,-0x14(%rbp)
  400893: c7 45 e8 06 00 00 00  movl   $0x6,-0x18(%rbp)
  40089a: c7 45 e4 07 00 00 00  movl   $0x7,-0x1c(%rbp)
  4008a1: c7 45 e0 08 00 00 00  movl   $0x8,-0x20(%rbp)
  4008a8: c7 45 dc 00 00 00 00  movl   $0x0,-0x24(%rbp)
  4008af: 44 8b 4d e8           mov    -0x18(%rbp),%r9d
  4008b3: 44 8b 45 ec           mov    -0x14(%rbp),%r8d
  4008b7: 8b 4d f0              mov    -0x10(%rbp),%ecx
  4008ba: 8b 55 f4              mov    -0xc(%rbp),%edx
  4008bd: 8b 75 f8              mov    -0x8(%rbp),%esi
  4008c0: 8b 45 fc              mov    -0x4(%rbp),%eax
  4008c3: 8b 7d e0              mov    -0x20(%rbp),%edi
  4008c6: 57                    push   %rdi
  4008c7: 8b 7d e4              mov    -0x1c(%rbp),%edi
  4008ca: 57                    push   %rdi
  4008cb: 89 c7                 mov    %eax,%edi
  4008cd: e8 28 ff ff ff        callq  4007fa 
  4008d2: 48 83 c4 10           add    $0x10,%rsp
  4008d6: 89 45 dc              mov    %eax,-0x24(%rbp)
  4008d9: 8b 45 dc              mov    -0x24(%rbp),%eax
  4008dc: 89 c6                 mov    %eax,%esi
  4008de: bf 47 09 40 00        mov    $0x400947,%edi
  4008e3: b8 00 00 00 00        mov    $0x0,%eax
  4008e8: e8 63 fb ff ff        callq  400450 
  4008ed: b8 00 00 00 00        mov    $0x0,%eax
  4008f2: c9                    leaveq 
  4008f3: c3                    retq   
  4008f4: 66 2e 0f 1f 84 00 00  nopw   %cs:0x0(%rax,%rax,1)
  4008fb: 00 00 00 
  4008fe: 66 90                 xchg   %ax,%ax

0000000000400900 <__do_global_ctors_aux>:
  400900: 48 8b 05 a1 01 20 00  mov    0x2001a1(%rip),%rax        # 600aa8 <__ctor_list__>
  400907: 48 83 f8 ff           cmp    $0xffffffffffffffff,%rax
  40090b: 74 28                 je     400935 <__do_global_ctors_aux x35="">
  40090d: 55                    push   %rbp
  40090e: 48 89 e5              mov    %rsp,%rbp
  400911: 53                    push   %rbx
  400912: bb a8 0a 60 00        mov    $0x600aa8,%ebx
  400917: 48 83 ec 08           sub    $0x8,%rsp
  40091b: 0f 1f 44 00 00        nopl   0x0(%rax,%rax,1)
  400920: 48 83 eb 08           sub    $0x8,%rbx
  400924: ff d0                 callq  *%rax
  400926: 48 8b 03              mov    (%rbx),%rax
  400929: 48 83 f8 ff           cmp    $0xffffffffffffffff,%rax
  40092d: 75 f1                 jne    400920 <__do_global_ctors_aux x20="">
  40092f: 48 83 c4 08           add    $0x8,%rsp
  400933: 5b                    pop    %rbx
  400934: 5d                    pop    %rbp
  400935: f3 c3                 repz retq 
  400937: 90                    nop    
Disassembly of section .fini:

0000000000400938 <_fini>:
  400938: 48 83 ec 08           sub    $0x8,%rsp
  40093c: e8 9f fd ff ff        callq  4006e0 <__do_global_dtors_aux>
  400941: 48 83 c4 08           add    $0x8,%rsp
  400945: c3                    retq   
Disassembly of section .rodata:

0000000000400946 <.rodata>:
  400946: 00 6f 75              add    %ch,0x75(%rdi)
  400949: 74 70                 je     4009bb <__gnu_eh_frame_hdr x67="">
  40094b: 75 74                 jne    4009c1 <__gnu_eh_frame_hdr x6d="">
  40094d: 20 69 73              and    %ch,0x73(%rcx)
  400950: 20                    .byte 0x20
  400951: 25                    .byte 0x25
  400952: 64                    fs
 ...
Disassembly of section .eh_frame_hdr:

0000000000400954 <__gnu_eh_frame_hdr>:
  400954: 01 1b                 add    %ebx,(%rbx)
  400956: 03 3b                 add    (%rbx),%edi
  400958: 40 00 00              add    %al,(%rax)
  40095b: 00 07                 add    %al,(%rdi)
  40095d: 00 00                 add    %al,(%rax)
  40095f: 00 dc                 add    %bl,%ah
  400961: fa                    cli    
  400962: ff                    (bad)  
  400963: ff a4 00 00 00 2c fb  jmpq   *-0x4d40000(%rax,%rax,1)
  40096a: ff                    (bad)  
  40096b: ff 5c 00 00           lcallq *0x0(%rax,%rax,1)
  40096f: 00 ac fc ff ff 84 00  add    %ch,0x84ffff(%rsp,%rdi,8)
  400976: 00 00                 add    %al,(%rax)
  400978: 22 fe                 and    %dh,%bh
  40097a: ff                    (bad)  
  40097b: ff cc                 dec    %esp
  40097d: 00 00                 add    %al,(%rax)
  40097f: 00 50 fe              add    %dl,-0x2(%rax)
  400982: ff                    (bad)  
  400983: ff ec                 ljmpq  *
  400985: 00 00                 add    %al,(%rax)
  400987: 00 a6 fe ff ff 0c     add    %ah,0xcfffffe(%rsi)
  40098d: 01 00                 add    %eax,(%rax)
  40098f: 00 14 ff              add    %dl,(%rdi,%rdi,8)
  400992: ff                    (bad)  
  400993: ff 2c 01              ljmpq  *(%rcx,%rax,1)
 ...
Disassembly of section .eh_frame:

0000000000400998 <__frame_end__-0x108>:
  400998: 14 00                 adc    $0x0,%al
  40099a: 00 00                 add    %al,(%rax)
  40099c: 00 00                 add    %al,(%rax)
  40099e: 00 00                 add    %al,(%rax)
  4009a0: 01 7a 52              add    %edi,0x52(%rdx)
  4009a3: 00 01                 add    %al,(%rcx)
  4009a5: 78 10                 js     4009b7 <__gnu_eh_frame_hdr x63="">
  4009a7: 01 1b                 add    %ebx,(%rbx)
  4009a9: 0c 07                 or     $0x7,%al
  4009ab: 08 90 01 00 00 24     or     %dl,0x24000001(%rax)
  4009b1: 00 00                 add    %al,(%rax)
  4009b3: 00 1c 00              add    %bl,(%rax,%rax,1)
  4009b6: 00 00                 add    %al,(%rax)
  4009b8: c8 fa ff ff           enterq $0xfffa,$0xff
  4009bc: 76 01                 jbe    4009bf <__gnu_eh_frame_hdr x6b="">
  4009be: 00 00                 add    %al,(%rax)
  4009c0: 00 41 0e              add    %al,0xe(%rcx)
  4009c3: 10 86 02 43 0d 06     adc    %al,0x60d4302(%rsi)
  4009c9: 4a 83 07 8c           rex.WX addq   $0xffffffffffffff8c,(%rdi)
  4009cd: 06                    (bad)  
  4009ce: 8d 05 8e 04 8f 03     lea    0x38f048e(%rip),%eax        # 3cf0e62 <_end x36f01d2="">
  4009d4: 00 00                 add    %al,(%rax)
  4009d6: 00 00                 add    %al,(%rax)
  4009d8: 1c 00                 sbb    $0x0,%al
  4009da: 00 00                 add    %al,(%rax)
  4009dc: 44 00 00              add    %r8b,(%rax)
  4009df: 00 20                 add    %ah,(%rax)
  4009e1: fc                    cld    
  4009e2: ff                    (bad)  
  4009e3: ff 53 00              callq  *0x0(%rbx)
  4009e6: 00 00                 add    %al,(%rax)
  4009e8: 00 41 0e              add    %al,0xe(%rcx)
  4009eb: 10 86 02 43 0d 06     adc    %al,0x60d4302(%rsi)
  4009f1: 42 83 03 00           rex.X addl   $0x0,(%rbx)
  4009f5: 00 00                 add    %al,(%rax)
  4009f7: 00 24 00              add    %ah,(%rax,%rax,1)
  4009fa: 00 00                 add    %al,(%rax)
  4009fc: 64 00 00              add    %al,%fs:(%rax)
  4009ff: 00 30                 add    %dh,(%rax)
  400a01: fa                    cli    
  400a02: ff                    (bad)  
  400a03: ff 50 00              callq  *0x0(%rax)
  400a06: 00 00                 add    %al,(%rax)
  400a08: 00 0e                 add    %cl,(%rsi)
  400a0a: 10 46 0e              adc    %al,0xe(%rsi)
  400a0d: 18 4a 0f              sbb    %cl,0xf(%rdx)
  400a10: 0b 77 08              or     0x8(%rdi),%esi
  400a13: 80 00 3f              addb   $0x3f,(%rax)
  400a16: 1a 3b                 sbb    (%rbx),%bh
  400a18: 2a 33                 sub    (%rbx),%dh
  400a1a: 24 22                 and    $0x22,%al
  400a1c: 00 00                 add    %al,(%rax)
  400a1e: 00 00                 add    %al,(%rax)
  400a20: 1c 00                 sbb    $0x0,%al
  400a22: 00 00                 add    %al,(%rax)
  400a24: 8c 00                 mov    %es,(%rax)
  400a26: 00 00                 add    %al,(%rax)
  400a28: 4e fd                 rex.WRX std    
  400a2a: ff                    (bad)  
  400a2b: ff 2e                 ljmpq  *(%rsi)
  400a2d: 00 00                 add    %al,(%rax)
  400a2f: 00 00                 add    %al,(%rax)
  400a31: 41 0e                 rex.B (bad)  
  400a33: 10 86 02 43 0d 06     adc    %al,0x60d4302(%rsi)
  400a39: 69 0c 07 08 00 00 00  imul   $0x8,(%rdi,%rax,1),%ecx
  400a40: 1c 00                 sbb    $0x0,%al
  400a42: 00 00                 add    %al,(%rax)
  400a44: ac                    lods   %ds:(%rsi),%al
  400a45: 00 00                 add    %al,(%rax)
  400a47: 00 5c fd ff           add    %bl,-0x1(%rbp,%rdi,8)
  400a4b: ff 56 00              callq  *0x0(%rsi)
  400a4e: 00 00                 add    %al,(%rax)
  400a50: 00 41 0e              add    %al,0xe(%rcx)
  400a53: 10 86 02 43 0d 06     adc    %al,0x60d4302(%rsi)
  400a59: 02 51 0c              add    0xc(%rcx),%dl
  400a5c: 07                    (bad)  
  400a5d: 08 00                 or     %al,(%rax)
  400a5f: 00 1c 00              add    %bl,(%rax,%rax,1)
  400a62: 00 00                 add    %al,(%rax)
  400a64: cc                    int3   
  400a65: 00 00                 add    %al,(%rax)
  400a67: 00 92 fd ff ff 6e     add    %dl,0x6efffffd(%rdx)
  400a6d: 00 00                 add    %al,(%rax)
  400a6f: 00 00                 add    %al,(%rax)
  400a71: 41 0e                 rex.B (bad)  
  400a73: 10 86 02 43 0d 06     adc    %al,0x60d4302(%rsi)
  400a79: 02 69 0c              add    0xc(%rcx),%ch
  400a7c: 07                    (bad)  
  400a7d: 08 00                 or     %al,(%rax)
  400a7f: 00 1c 00              add    %bl,(%rax,%rax,1)
  400a82: 00 00                 add    %al,(%rax)
  400a84: ec                    in     (%dx),%al
  400a85: 00 00                 add    %al,(%rax)
  400a87: 00 e0                 add    %ah,%al
  400a89: fd                    std    
  400a8a: ff                    (bad)  
  400a8b: ff 8c 00 00 00 00 41  decl   0x41000000(%rax,%rax,1)
  400a92: 0e                    (bad)  
  400a93: 10 86 02 43 0d 06     adc    %al,0x60d4302(%rsi)
  400a99: 02 87 0c 07 08 00     add    0x8070c(%rdi),%al
 ...

0000000000400aa0 <__frame_end__>:
  400aa0: 00 00                 add    %al,(%rax)
 ...
Disassembly of section .ctors:

0000000000600aa8 <__ctor_list__>:
  600aa8: ff                    (bad)  
  600aa9: ff                    (bad)  
  600aaa: ff                    (bad)  
  600aab: ff                    (bad)  
  600aac: ff                    (bad)  
  600aad: ff                    (bad)  
  600aae: ff                    (bad)  
  600aaf: ff 00                 incl   (%rax)

0000000000600ab0 <__ctor_end__>:
 ...
Disassembly of section .dtors:

0000000000600ab8 <__dtor_list__>:
  600ab8: ff                    (bad)  
  600ab9: ff                    (bad)  
  600aba: ff                    (bad)  
  600abb: ff                    (bad)  
  600abc: ff                    (bad)  
  600abd: ff                    (bad)  
  600abe: ff                    (bad)  
  600abf: ff 00                 incl   (%rax)

0000000000600ac0 <__dtor_end__>:
 ...
Disassembly of section .jcr:

0000000000600ac8 <__jcr_end__>:
 ...
Disassembly of section .dynamic:

0000000000600ad0 <_dynamic>:
  600ad0: 01 00                 add    %eax,(%rax)
  600ad2: 00 00                 add    %al,(%rax)
  600ad4: 00 00                 add    %al,(%rax)
  600ad6: 00 00                 add    %al,(%rax)
  600ad8: 01 00                 add    %eax,(%rax)
  600ada: 00 00                 add    %al,(%rax)
  600adc: 00 00                 add    %al,(%rax)
  600ade: 00 00                 add    %al,(%rax)
  600ae0: 0c 00                 or     $0x0,%al
  600ae2: 00 00                 add    %al,(%rax)
  600ae4: 00 00                 add    %al,(%rax)
  600ae6: 00 00                 add    %al,(%rax)
  600ae8: 18 04 40              sbb    %al,(%rax,%rax,2)
  600aeb: 00 00                 add    %al,(%rax)
  600aed: 00 00                 add    %al,(%rax)
  600aef: 00 0d 00 00 00 00     add    %cl,0x0(%rip)        # 600af5 <_dynamic x25="">
  600af5: 00 00                 add    %al,(%rax)
  600af7: 00 38                 add    %bh,(%rax)
  600af9: 09 40 00              or     %eax,0x0(%rax)
  600afc: 00 00                 add    %al,(%rax)
  600afe: 00 00                 add    %al,(%rax)
  600b00: 04 00                 add    $0x0,%al
  600b02: 00 00                 add    %al,(%rax)
  600b04: 00 00                 add    %al,(%rax)
  600b06: 00 00                 add    %al,(%rax)
  600b08: 48 02 40 00           rex.W add    0x0(%rax),%al
  600b0c: 00 00                 add    %al,(%rax)
  600b0e: 00 00                 add    %al,(%rax)
  600b10: 05 00 00 00 00        add    $0x0,%eax
  600b15: 00 00                 add    %al,(%rax)
  600b17: 00 40 03              add    %al,0x3(%rax)
  600b1a: 40 00 00              add    %al,(%rax)
  600b1d: 00 00                 add    %al,(%rax)
  600b1f: 00 06                 add    %al,(%rsi)
  600b21: 00 00                 add    %al,(%rax)
  600b23: 00 00                 add    %al,(%rax)
  600b25: 00 00                 add    %al,(%rax)
  600b27: 00 80 02 40 00 00     add    %al,0x4002(%rax)
  600b2d: 00 00                 add    %al,(%rax)
  600b2f: 00 0a                 add    %cl,(%rdx)
  600b31: 00 00                 add    %al,(%rax)
  600b33: 00 00                 add    %al,(%rax)
  600b35: 00 00                 add    %al,(%rax)
  600b37: 00 44 00 00           add    %al,0x0(%rax,%rax,1)
  600b3b: 00 00                 add    %al,(%rax)
  600b3d: 00 00                 add    %al,(%rax)
  600b3f: 00 0b                 add    %cl,(%rbx)
  600b41: 00 00                 add    %al,(%rax)
  600b43: 00 00                 add    %al,(%rax)
  600b45: 00 00                 add    %al,(%rax)
  600b47: 00 18                 add    %bl,(%rax)
  600b49: 00 00                 add    %al,(%rax)
  600b4b: 00 00                 add    %al,(%rax)
  600b4d: 00 00                 add    %al,(%rax)
  600b4f: 00 15 00 00 00 00     add    %dl,0x0(%rip)        # 600b55 <_dynamic x85="">
 ...
  600b5d: 00 00                 add    %al,(%rax)
  600b5f: 00 03                 add    %al,(%rbx)
  600b61: 00 00                 add    %al,(%rax)
  600b63: 00 00                 add    %al,(%rax)
  600b65: 00 00                 add    %al,(%rax)
  600b67: 00 30                 add    %dh,(%rax)
  600b69: 0c 60                 or     $0x60,%al
  600b6b: 00 00                 add    %al,(%rax)
  600b6d: 00 00                 add    %al,(%rax)
  600b6f: 00 02                 add    %al,(%rdx)
  600b71: 00 00                 add    %al,(%rax)
  600b73: 00 00                 add    %al,(%rax)
  600b75: 00 00                 add    %al,(%rax)
  600b77: 00 60 00              add    %ah,0x0(%rax)
  600b7a: 00 00                 add    %al,(%rax)
  600b7c: 00 00                 add    %al,(%rax)
  600b7e: 00 00                 add    %al,(%rax)
  600b80: 14 00                 adc    $0x0,%al
  600b82: 00 00                 add    %al,(%rax)
  600b84: 00 00                 add    %al,(%rax)
  600b86: 00 00                 add    %al,(%rax)
  600b88: 07                    (bad)  
  600b89: 00 00                 add    %al,(%rax)
  600b8b: 00 00                 add    %al,(%rax)
  600b8d: 00 00                 add    %al,(%rax)
  600b8f: 00 17                 add    %dl,(%rdi)
  600b91: 00 00                 add    %al,(%rax)
  600b93: 00 00                 add    %al,(%rax)
  600b95: 00 00                 add    %al,(%rax)
  600b97: 00 b8 03 40 00 00     add    %bh,0x4003(%rax)
  600b9d: 00 00                 add    %al,(%rax)
  600b9f: 00 fe                 add    %bh,%dh
  600ba1: ff                    (bad)  
  600ba2: ff 6f 00              ljmpq  *0x0(%rdi)
  600ba5: 00 00                 add    %al,(%rax)
  600ba7: 00 98 03 40 00 00     add    %bl,0x4003(%rax)
  600bad: 00 00                 add    %al,(%rax)
  600baf: 00 ff                 add    %bh,%bh
  600bb1: ff                    (bad)  
  600bb2: ff 6f 00              ljmpq  *0x0(%rdi)
  600bb5: 00 00                 add    %al,(%rax)
  600bb7: 00 01                 add    %al,(%rcx)
  600bb9: 00 00                 add    %al,(%rax)
  600bbb: 00 00                 add    %al,(%rax)
  600bbd: 00 00                 add    %al,(%rax)
  600bbf: 00 f0                 add    %dh,%al
  600bc1: ff                    (bad)  
  600bc2: ff 6f 00              ljmpq  *0x0(%rdi)
  600bc5: 00 00                 add    %al,(%rax)
  600bc7: 00 84 03 40 00 00 00  add    %al,0x40(%rbx,%rax,1)
 ...
Disassembly of section .got.plt:

0000000000600c30 <_global_offset_table_>:
  600c30: d0 0a                 rorb   (%rdx)
  600c32: 60                    (bad)  
 ...
  600c47: 00 46 04              add    %al,0x4(%rsi)
  600c4a: 40 00 00              add    %al,(%rax)
  600c4d: 00 00                 add    %al,(%rax)
  600c4f: 00 56 04              add    %dl,0x4(%rsi)
  600c52: 40 00 00              add    %al,(%rax)
  600c55: 00 00                 add    %al,(%rax)
  600c57: 00 66 04              add    %ah,0x4(%rsi)
  600c5a: 40 00 00              add    %al,(%rax)
  600c5d: 00 00                 add    %al,(%rax)
  600c5f: 00 76 04              add    %dh,0x4(%rsi)
  600c62: 40 00 00              add    %al,(%rax)
  600c65: 00 00                 add    %al,(%rax)
 ...
Disassembly of section .data:

0000000000600c68 <__progname>:
  600c68: 46 09 40 00           rex.RX or     %r8d,0x0(%rax)
  600c6c: 00 00                 add    %al,(%rax)
 ...

0000000000600c70 <__dso_handle>:
 ...
Disassembly of section .bss:

0000000000600c78 <__bss_start>:
 ...

0000000000600c80 :
 ...

0000000000600c88 :
 ...
Disassembly of section .comment:

0000000000000000 <.comment>:
   0: 24 46                 and    $0x46,%al
   2: 72 65                 jb     69 
   4: 65                    gs
   5: 42 53                 rex.X push   %rbx
   7: 44 3a 20              cmp    (%rax),%r12b
   a: 72 65                 jb     71 
   c: 6c                    insb   (%dx),%es:(%rdi)
   d: 65                    gs
   e: 61                    (bad)  
   f: 73 65                 jae    76 
  11: 2f                    (bad)  
  12: 31 30                 xor    %esi,(%rax)
  14: 2e                    cs
  15: 34 2e                 xor    $0x2e,%al
  17: 30 2f                 xor    %ch,(%rdi)
  19: 6c                    insb   (%dx),%es:(%rdi)
  1a: 69 62 2f 63 73 75 2f  imul   $0x2f757363,0x2f(%rdx),%esp
  21: 61                    (bad)  
  22: 6d                    insl   (%dx),%es:(%rdi)
  23: 64                    fs
  24: 36                    ss
  25: 34 2f                 xor    $0x2f,%al
  27: 63 72 74              movslq 0x74(%rdx),%esi
  2a: 31 2e                 xor    %ebp,(%rsi)
  2c: 63 20                 movslq (%rax),%esp
  2e: 33 30                 xor    (%rax),%esi
  30: 30 33                 xor    %dh,(%rbx)
  32: 32 33                 xor    (%rbx),%dh
  34: 20 32                 and    %dh,(%rdx)
  36: 30 31                 xor    %dh,(%rcx)
  38: 36                    ss
  39: 2d 30 35 2d 32        sub    $0x322d3530,%eax
  3e: 30 20                 xor    %ah,(%rax)
  40: 31 39                 xor    %edi,(%rcx)
  42: 3a 31                 cmp    (%rcx),%dh
  44: 34 3a                 xor    $0x3a,%al
  46: 31 35 5a 20 65 6d     xor    %esi,0x6d65205a(%rip)        # 6d6520a6 <_end x6d051416="">
  4c: 61                    (bad)  
  4d: 73 74                 jae    c3 
  4f: 65 20 24 00           and    %ah,%gs:(%rax,%rax,1)
  53: 24 46                 and    $0x46,%al
  55: 72 65                 jb     bc 
  57: 65                    gs
  58: 42 53                 rex.X push   %rbx
  5a: 44 3a 20              cmp    (%rax),%r12b
  5d: 72 65                 jb     c4 
  5f: 6c                    insb   (%dx),%es:(%rdi)
  60: 65                    gs
  61: 61                    (bad)  
  62: 73 65                 jae    c9 
  64: 2f                    (bad)  
  65: 31 30                 xor    %esi,(%rax)
  67: 2e                    cs
  68: 34 2e                 xor    $0x2e,%al
  6a: 30 2f                 xor    %ch,(%rdi)
  6c: 6c                    insb   (%dx),%es:(%rdi)
  6d: 69 62 2f 63 73 75 2f  imul   $0x2f757363,0x2f(%rdx),%esp
  74: 63 6f 6d              movslq 0x6d(%rdi),%ebp
  77: 6d                    insl   (%dx),%es:(%rdi)
  78: 6f                    outsl  %ds:(%rsi),(%dx)
  79: 6e                    outsb  %ds:(%rsi),(%dx)
  7a: 2f                    (bad)  
  7b: 63 72 74              movslq 0x74(%rdx),%esi
  7e: 62                    (bad)  
  7f: 72 61                 jb     e2 
  81: 6e                    outsb  %ds:(%rsi),(%dx)
  82: 64 2e 63 20           movslq %cs:%fs:(%rax),%esp
  86: 33 32                 xor    (%rdx),%esi
  88: 34 30                 xor    $0x30,%al
  8a: 39 32                 cmp    %esi,(%rdx)
  8c: 20 32                 and    %dh,(%rdx)
  8e: 30 31                 xor    %dh,(%rcx)
  90: 37                    (bad)  
  91: 2d 30 39 2d 32        sub    $0x322d3930,%eax
  96: 39 20                 cmp    %esp,(%rax)
  98: 30 30                 xor    %dh,(%rax)
  9a: 3a 30                 cmp    (%rax),%dh
  9c: 30 3a                 xor    %bh,(%rdx)
  9e: 33 32                 xor    (%rdx),%esi
  a0: 5a                    pop    %rdx
  a1: 20 6d 61              and    %ch,0x61(%rbp)
  a4: 72 69                 jb     10f 
  a6: 75 73                 jne    11b 
  a8: 20 24 00              and    %ah,(%rax,%rax,1)
  ab: 24 46                 and    $0x46,%al
  ad: 72 65                 jb     114 
  af: 65                    gs
  b0: 42 53                 rex.X push   %rbx
  b2: 44 3a 20              cmp    (%rax),%r12b
  b5: 72 65                 jb     11c 
  b7: 6c                    insb   (%dx),%es:(%rdi)
  b8: 65                    gs
  b9: 61                    (bad)  
  ba: 73 65                 jae    121 
  bc: 2f                    (bad)  
  bd: 31 30                 xor    %esi,(%rax)
  bf: 2e                    cs
  c0: 34 2e                 xor    $0x2e,%al
  c2: 30 2f                 xor    %ch,(%rdi)
  c4: 6c                    insb   (%dx),%es:(%rdi)
  c5: 69 62 2f 63 73 75 2f  imul   $0x2f757363,0x2f(%rdx),%esp
  cc: 63 6f 6d              movslq 0x6d(%rdi),%ebp
  cf: 6d                    insl   (%dx),%es:(%rdi)
  d0: 6f                    outsl  %ds:(%rsi),(%dx)
  d1: 6e                    outsb  %ds:(%rsi),(%dx)
  d2: 2f                    (bad)  
  d3: 69 67 6e 6f 72 65 5f  imul   $0x5f65726f,0x6e(%rdi),%esp
  da: 69 6e 69 74 2e 63 20  imul   $0x20632e74,0x69(%rsi),%ebp
  e1: 32 34 35 31 33 33 20  xor    0x20333331(,%rsi,1),%dh
  e8: 32 30                 xor    (%rax),%dh
  ea: 31 33                 xor    %esi,(%rbx)
  ec: 2d 30 31 2d 30        sub    $0x302d3130,%eax
  f1: 37                    (bad)  
  f2: 20 31                 and    %dh,(%rcx)
  f4: 37                    (bad)  
  f5: 3a 35 38 3a 32 37     cmp    0x37323a38(%rip),%dh        # 37323b33 <_end x36d22ea3="">
  fb: 5a                    pop    %rdx
  fc: 20 6b 69              and    %ch,0x69(%rbx)
  ff: 62                    (bad)  
 100: 20 24 00              and    %ah,(%rax,%rax,1)
 103: 46 72 65              rex.RX jb     16b 
 106: 65                    gs
 107: 42 53                 rex.X push   %rbx
 109: 44 20 63 6c           and    %r12b,0x6c(%rbx)
 10d: 61                    (bad)  
 10e: 6e                    outsb  %ds:(%rsi),(%dx)
 10f: 67 20 76 65           addr32 and %dh,0x65(%esi)
 113: 72 73                 jb     188 
 115: 69 6f 6e 20 33 2e 34  imul   $0x342e3320,0x6e(%rdi),%ebp
 11c: 2e 31 20              xor    %esp,%cs:(%rax)
 11f: 28 74 61 67           sub    %dh,0x67(%rcx,2)
 123: 73 2f                 jae    154 
 125: 52                    push   %rdx
 126: 45                    rex.RB
 127: 4c                    rex.WR
 128: 45                    rex.RB
 129: 41 53                 push   %r11
 12b: 45 5f                 rex.RB pop    %r15
 12d: 33 34 2f              xor    (%rdi,%rbp,1),%esi
 130: 64 6f                 outsl  %fs:(%rsi),(%dx)
 132: 74 31                 je     165 
 134: 2d 66 69 6e 61        sub    $0x616e6966,%eax
 139: 6c                    insb   (%dx),%es:(%rdi)
 13a: 20 32                 and    %dh,(%rdx)
 13c: 30 38                 xor    %bh,(%rax)
 13e: 30 33                 xor    %dh,(%rbx)
 140: 32 29                 xor    (%rcx),%ch
 142: 20 32                 and    %dh,(%rdx)
 144: 30 31                 xor    %dh,(%rcx)
 146: 34 30                 xor    $0x30,%al
 148: 35 31 32 00 24        xor    $0x24003231,%eax
 14d: 46 72 65              rex.RX jb     1b5 
 150: 65                    gs
 151: 42 53                 rex.X push   %rbx
 153: 44 3a 20              cmp    (%rax),%r12b
 156: 72 65                 jb     1bd 
 158: 6c                    insb   (%dx),%es:(%rdi)
 159: 65                    gs
 15a: 61                    (bad)  
 15b: 73 65                 jae    1c2 
 15d: 2f                    (bad)  
 15e: 31 30                 xor    %esi,(%rax)
 160: 2e                    cs
 161: 34 2e                 xor    $0x2e,%al
 163: 30 2f                 xor    %ch,(%rdi)
 165: 6c                    insb   (%dx),%es:(%rdi)
 166: 69 62 2f 63 73 75 2f  imul   $0x2f757363,0x2f(%rdx),%esp
 16d: 61                    (bad)  
 16e: 6d                    insl   (%dx),%es:(%rdi)
 16f: 64                    fs
 170: 36                    ss
 171: 34 2f                 xor    $0x2f,%al
 173: 63 72 74              movslq 0x74(%rdx),%esi
 176: 69 2e 53 20 32 31     imul   $0x31322053,(%rsi),%ebp
 17c: 37                    (bad)  
 17d: 31 30                 xor    %esi,(%rax)
 17f: 35 20 32 30 31        xor    $0x31303220,%eax
 184: 31 2d 30 31 2d 30     xor    %ebp,0x302d3130(%rip)        # 302d32ba <_end x2fcd262a="">
 18a: 37                    (bad)  
 18b: 20 31                 and    %dh,(%rcx)
 18d: 36 3a 30              cmp    %ss:(%rax),%dh
 190: 37                    (bad)  
 191: 3a 35 31 5a 20 6b     cmp    0x6b205a31(%rip),%dh        # 6b205bc8 <_end x6ac04f38="">
 197: 69 62 20 24 00 47 43  imul   $0x43470024,0x20(%rdx),%esp
 19e: 43 3a 20              rex.XB cmp    (%r8),%spl
 1a1: 28 46 72              sub    %al,0x72(%rsi)
 1a4: 65                    gs
 1a5: 65                    gs
 1a6: 42 53                 rex.X push   %rbx
 1a8: 44 20 50 6f           and    %r10b,0x6f(%rax)
 1ac: 72 74                 jb     222 
 1ae: 73 20                 jae    1d0 
 1b0: 43 6f                 rex.XB outsl  %ds:(%rsi),(%dx)
 1b2: 6c                    insb   (%dx),%es:(%rdi)
 1b3: 6c                    insb   (%dx),%es:(%rdi)
 1b4: 65 63 74 69 6f        movslq %gs:0x6f(%rcx,%rbp,2),%esi
 1b9: 6e                    outsb  %ds:(%rsi),(%dx)
 1ba: 29 20                 sub    %esp,(%rax)
 1bc: 35 2e 34 2e 30        xor    $0x302e342e,%eax
 1c1: 00 24 46              add    %ah,(%rsi,%rax,2)
 1c4: 72 65                 jb     22b 
 1c6: 65                    gs
 1c7: 42 53                 rex.X push   %rbx
 1c9: 44 3a 20              cmp    (%rax),%r12b
 1cc: 72 65                 jb     233 
 1ce: 6c                    insb   (%dx),%es:(%rdi)
 1cf: 65                    gs
 1d0: 61                    (bad)  
 1d1: 73 65                 jae    238 
 1d3: 2f                    (bad)  
 1d4: 31 30                 xor    %esi,(%rax)
 1d6: 2e                    cs
 1d7: 34 2e                 xor    $0x2e,%al
 1d9: 30 2f                 xor    %ch,(%rdi)
 1db: 6c                    insb   (%dx),%es:(%rdi)
 1dc: 69 62 2f 63 73 75 2f  imul   $0x2f757363,0x2f(%rdx),%esp
 1e3: 61                    (bad)  
 1e4: 6d                    insl   (%dx),%es:(%rdi)
 1e5: 64                    fs
 1e6: 36                    ss
 1e7: 34 2f                 xor    $0x2f,%al
 1e9: 63 72 74              movslq 0x74(%rdx),%esi
 1ec: 6e                    outsb  %ds:(%rsi),(%dx)
 1ed: 2e                    cs
 1ee: 53                    push   %rbx
 1ef: 20 32                 and    %dh,(%rdx)
 1f1: 31 37                 xor    %esi,(%rdi)
 1f3: 31 30                 xor    %esi,(%rax)
 1f5: 35 20 32 30 31        xor    $0x31303220,%eax
 1fa: 31 2d 30 31 2d 30     xor    %ebp,0x302d3130(%rip)        # 302d3330 <_end x2fcd26a0="">
 200: 37                    (bad)  
 201: 20 31                 and    %dh,(%rcx)
 203: 36 3a 30              cmp    %ss:(%rax),%dh
 206: 37                    (bad)  
 207: 3a 35 31 5a 20 6b     cmp    0x6b205a31(%rip),%dh        # 6b205c3e <_end x6ac04fae="">
 20d: 69                    .byte 0x69
 20e: 62                    (bad)  
 20f: 20 24 00              and    %ah,(%rax,%rax,1)
Disassembly of section .debug_aranges:

0000000000000000 <.debug_aranges>:
   0: 2c 00                 sub    $0x0,%al
   2: 00 00                 add    %al,(%rax)
   4: 02 00                 add    (%rax),%al
   6: 00 00                 add    %al,(%rax)
   8: 00 00                 add    %al,(%rax)
   a: 08 00                 or     %al,(%rax)
   c: 00 00                 add    %al,(%rax)
   e: 00 00                 add    %al,(%rax)
  10: 76 07                 jbe    19 
  12: 40 00 00              add    %al,(%rax)
  15: 00 00                 add    %al,(%rax)
  17: 00 7e 01              add    %bh,0x1(%rsi)
 ...
Disassembly of section .debug_info:

0000000000000000 <.debug_info>:
   0: 96                    xchg   %eax,%esi
   1: 02 00                 add    (%rax),%al
   3: 00 04 00              add    %al,(%rax,%rax,1)
   6: 00 00                 add    %al,(%rax)
   8: 00 00                 add    %al,(%rax)
   a: 08 01                 or     %al,(%rcx)
   c: 00 00                 add    %al,(%rax)
   e: 00 00                 add    %al,(%rax)
  10: 0c dc                 or     $0xdc,%al
  12: 00 00                 add    %al,(%rax)
  14: 00 54 00 00           add    %dl,0x0(%rax,%rax,1)
  18: 00 76 07              add    %dh,0x7(%rsi)
  1b: 40 00 00              add    %al,(%rax)
  1e: 00 00                 add    %al,(%rax)
  20: 00 7e 01              add    %bh,0x1(%rsi)
 ...
  2b: 00 00                 add    %al,(%rax)
  2d: 02 01                 add    (%rcx),%al
  2f: 06                    (bad)  
  30: ab                    stos   %eax,%es:(%rdi)
  31: 00 00                 add    %al,(%rax)
  33: 00 02                 add    %al,(%rdx)
  35: 01 08                 add    %ecx,(%rax)
  37: a9 00 00 00 02        test   $0x2000000,%eax
  3c: 02 05 32 00 00 00     add    0x32(%rip),%al        # 74 
  42: 02 02                 add    (%rdx),%al
  44: 07                    (bad)  
  45: b7 00                 mov    $0x0,%bh
  47: 00 00                 add    %al,(%rax)
  49: 03 04 05 69 6e 74 00  add    0x746e69(,%rax,1),%eax
  50: 02 04 07              add    (%rdi,%rax,1),%al
  53: cf                    iret   
  54: 00 00                 add    %al,(%rax)
  56: 00 02                 add    %al,(%rdx)
  58: 08 05 94 00 00 00     or     %al,0x94(%rip)        # f2 
  5e: 02 08                 add    (%rax),%cl
  60: 07                    (bad)  
  61: ca 00 00              lret   $0x0
  64: 00 02                 add    %al,(%rdx)
  66: 08 04 a2              or     %al,(%rdx,4)
  69: 00 00                 add    %al,(%rax)
  6b: 00 02                 add    %al,(%rdx)
  6d: 04 04                 add    $0x4,%al
  6f: 89 00                 mov    %eax,(%rax)
  71: 00 00                 add    %al,(%rax)
  73: 02 08                 add    (%rax),%cl
  75: 07                    (bad)  
  76: 3c 00                 cmp    $0x0,%al
  78: 00 00                 add    %al,(%rax)
  7a: 02 08                 add    (%rax),%cl
  7c: 05 8f 00 00 00        add    $0x8f,%eax
  81: 02 10                 add    (%rax),%dl
  83: 04 9d                 add    $0x9d,%al
  85: 00 00                 add    %al,(%rax)
  87: 00 02                 add    %al,(%rdx)
  89: 01 06                 add    %eax,(%rsi)
  8b: b2 00                 mov    $0x0,%dl
  8d: 00 00                 add    %al,(%rax)
  8f: 04 4f                 add    $0x4f,%al
  91: 00 00                 add    %al,(%rax)
  93: 00 01                 add    %al,(%rcx)
  95: 03 49 00              add    0x0(%rcx),%ecx
  98: 00 00                 add    %al,(%rax)
  9a: 76 07                 jbe    a3 
  9c: 40 00 00              add    %al,(%rax)
  9f: 00 00                 add    %al,(%rax)
  a1: 00 2e                 add    %ch,(%rsi)
  a3: 00 00                 add    %al,(%rax)
  a5: 00 00                 add    %al,(%rax)
  a7: 00 00                 add    %al,(%rax)
  a9: 00 01                 add    %al,(%rcx)
  ab: 9c                    pushfq 
  ac: e5 00                 in     $0x0,%eax
  ae: 00 00                 add    %al,(%rax)
  b0: 05 67 00 01 03        add    $0x3010067,%eax
  b5: 49 00 00              rex.WB add    %al,(%r8)
  b8: 00 02                 add    %al,(%rdx)
  ba: 91                    xchg   %eax,%ecx
  bb: 5c                    pop    %rsp
  bc: 05 68 00 01 03        add    $0x3010068,%eax
  c1: 49 00 00              rex.WB add    %al,(%r8)
  c4: 00 02                 add    %al,(%rdx)
  c6: 91                    xchg   %eax,%ecx
  c7: 58                    pop    %rax
  c8: 06                    (bad)  
  c9: 76 61                 jbe    12c 
  cb: 6c                    insb   (%dx),%es:(%rdi)
  cc: 00 01                 add    %al,(%rcx)
  ce: 05 49 00 00 00        add    $0x49,%eax
  d3: 02 91 6c 06 72 65     add    0x6572066c(%rcx),%dl
  d9: 73 00                 jae    db 
  db: 01 06                 add    %eax,(%rsi)
  dd: 49 00 00              rex.WB add    %al,(%r8)
  e0: 00 02                 add    %al,(%rdx)
  e2: 91                    xchg   %eax,%ecx
  e3: 68 00 07 4a 00        pushq  $0x4a0700
  e8: 00 00                 add    %al,(%rax)
  ea: 01 0f                 add    %ecx,(%rdi)
  ec: 49 00 00              rex.WB add    %al,(%r8)
  ef: 00 a4 07 40 00 00 00  add    %ah,0x40(%rdi,%rax,1)
  f6: 00 00                 add    %al,(%rax)
  f8: 56                    push   %rsi
  f9: 00 00                 add    %al,(%rax)
  fb: 00 00                 add    %al,(%rax)
  fd: 00 00                 add    %al,(%rax)
  ff: 00 01                 add    %al,(%rcx)
 101: 9c                    pushfq 
 102: 61                    (bad)  
 103: 01 00                 add    %eax,(%rax)
 105: 00 05 65 00 01 0f     add    %al,0xf010065(%rip)        # f010170 <_end xea0f4e0="">
 10b: 49 00 00              rex.WB add    %al,(%r8)
 10e: 00 02                 add    %al,(%rdx)
 110: 91                    xchg   %eax,%ecx
 111: 5c                    pop    %rsp
 112: 05 66 00 01 0f        add    $0xf010066,%eax
 117: 49 00 00              rex.WB add    %al,(%r8)
 11a: 00 02                 add    %al,(%rdx)
 11c: 91                    xchg   %eax,%ecx
 11d: 58                    pop    %rax
 11e: 05 67 00 01 0f        add    $0xf010067,%eax
 123: 49 00 00              rex.WB add    %al,(%r8)
 126: 00 02                 add    %al,(%rdx)
 128: 91                    xchg   %eax,%ecx
 129: 54                    push   %rsp
 12a: 05 68 00 01 0f        add    $0xf010068,%eax
 12f: 49 00 00              rex.WB add    %al,(%r8)
 132: 00 02                 add    %al,(%rdx)
 134: 91                    xchg   %eax,%ecx
 135: 50                    push   %rax
 136: 06                    (bad)  
 137: 76 61                 jbe    19a 
 139: 6c                    insb   (%dx),%es:(%rdi)
 13a: 00 01                 add    %al,(%rcx)
 13c: 11 49 00              adc    %ecx,0x0(%rcx)
 13f: 00 00                 add    %al,(%rax)
 141: 02 91 6c 06 72 65     add    0x6572066c(%rcx),%dl
 147: 73 00                 jae    149 
 149: 01 12                 add    %edx,(%rdx)
 14b: 49 00 00              rex.WB add    %al,(%r8)
 14e: 00 02                 add    %al,(%rdx)
 150: 91                    xchg   %eax,%ecx
 151: 68 06 72 65 74        pushq  $0x74657206
 156: 00 01                 add    %al,(%rcx)
 158: 13 49 00              adc    0x0(%rcx),%ecx
 15b: 00 00                 add    %al,(%rax)
 15d: 02 91 64 00 07 45     add    0x45070064(%rcx),%dl
 163: 00 00                 add    %al,(%rax)
 165: 00 01                 add    %al,(%rcx)
 167: 1f                    (bad)  
 168: 49 00 00              rex.WB add    %al,(%r8)
 16b: 00 fa                 add    %bh,%dl
 16d: 07                    (bad)  
 16e: 40 00 00              add    %al,(%rax)
 171: 00 00                 add    %al,(%rax)
 173: 00 6e 00              add    %ch,0x0(%rsi)
 176: 00 00                 add    %al,(%rax)
 178: 00 00                 add    %al,(%rax)
 17a: 00 00                 add    %al,(%rax)
 17c: 01 9c 0d 02 00 00 05  add    %ebx,0x5000002(%rbp,%rcx,1)
 183: 61                    (bad)  
 184: 00 01                 add    %al,(%rcx)
 186: 1f                    (bad)  
 187: 49 00 00              rex.WB add    %al,(%r8)
 18a: 00 02                 add    %al,(%rdx)
 18c: 91                    xchg   %eax,%ecx
 18d: 5c                    pop    %rsp
 18e: 05 62 00 01 1f        add    $0x1f010062,%eax
 193: 49 00 00              rex.WB add    %al,(%r8)
 196: 00 02                 add    %al,(%rdx)
 198: 91                    xchg   %eax,%ecx
 199: 58                    pop    %rax
 19a: 05 63 00 01 1f        add    $0x1f010063,%eax
 19f: 49 00 00              rex.WB add    %al,(%r8)
 1a2: 00 02                 add    %al,(%rdx)
 1a4: 91                    xchg   %eax,%ecx
 1a5: 54                    push   %rsp
 1a6: 05 64 00 01 1f        add    $0x1f010064,%eax
 1ab: 49 00 00              rex.WB add    %al,(%r8)
 1ae: 00 02                 add    %al,(%rdx)
 1b0: 91                    xchg   %eax,%ecx
 1b1: 50                    push   %rax
 1b2: 05 65 00 01 20        add    $0x20010065,%eax
 1b7: 49 00 00              rex.WB add    %al,(%r8)
 1ba: 00 02                 add    %al,(%rdx)
 1bc: 91                    xchg   %eax,%ecx
 1bd: 4c 05 66 00 01 20     rex.WR add    $0x20010066,%rax
 1c3: 49 00 00              rex.WB add    %al,(%r8)
 1c6: 00 02                 add    %al,(%rdx)
 1c8: 91                    xchg   %eax,%ecx
 1c9: 48 05 67 00 01 20     add    $0x20010067,%rax
 1cf: 49 00 00              rex.WB add    %al,(%r8)
 1d2: 00 02                 add    %al,(%rdx)
 1d4: 91                    xchg   %eax,%ecx
 1d5: 00 05 68 00 01 20     add    %al,0x20010068(%rip)        # 20010243 <_end x1fa0f5b3="">
 1db: 49 00 00              rex.WB add    %al,(%r8)
 1de: 00 02                 add    %al,(%rdx)
 1e0: 91                    xchg   %eax,%ecx
 1e1: 08 06                 or     %al,(%rsi)
 1e3: 76 61                 jbe    246 
 1e5: 6c                    insb   (%dx),%es:(%rdi)
 1e6: 00 01                 add    %al,(%rcx)
 1e8: 22 49 00              and    0x0(%rcx),%cl
 1eb: 00 00                 add    %al,(%rax)
 1ed: 02 91 6c 06 72 65     add    0x6572066c(%rcx),%dl
 1f3: 73 00                 jae    1f5 
 1f5: 01 23                 add    %esp,(%rbx)
 1f7: 49 00 00              rex.WB add    %al,(%r8)
 1fa: 00 02                 add    %al,(%rdx)
 1fc: 91                    xchg   %eax,%ecx
 1fd: 68 06 72 65 74        pushq  $0x74657206
 202: 00 01                 add    %al,(%rcx)
 204: 24 49                 and    $0x49,%al
 206: 00 00                 add    %al,(%rax)
 208: 00 02                 add    %al,(%rdx)
 20a: 91                    xchg   %eax,%ecx
 20b: 64 00 08              add    %cl,%fs:(%rax)
 20e: 84 00                 test   %al,(%rax)
 210: 00 00                 add    %al,(%rax)
 212: 01 2e                 add    %ebp,(%rsi)
 214: 49 00 00              rex.WB add    %al,(%r8)
 217: 00 68 08              add    %ch,0x8(%rax)
 21a: 40 00 00              add    %al,(%rax)
 21d: 00 00                 add    %al,(%rax)
 21f: 00 8c 00 00 00 00 00  add    %cl,0x0(%rax,%rax,1)
 226: 00 00                 add    %al,(%rax)
 228: 01 9c 06 61 00 01 30  add    %ebx,0x30010061(%rsi,%rax,1)
 22f: 49 00 00              rex.WB add    %al,(%r8)
 232: 00 02                 add    %al,(%rdx)
 234: 91                    xchg   %eax,%ecx
 235: 6c                    insb   (%dx),%es:(%rdi)
 236: 06                    (bad)  
 237: 62                    (bad)  
 238: 00 01                 add    %al,(%rcx)
 23a: 31 49 00              xor    %ecx,0x0(%rcx)
 23d: 00 00                 add    %al,(%rax)
 23f: 02 91 68 06 63 00     add    0x630668(%rcx),%dl
 245: 01 32                 add    %esi,(%rdx)
 247: 49 00 00              rex.WB add    %al,(%r8)
 24a: 00 02                 add    %al,(%rdx)
 24c: 91                    xchg   %eax,%ecx
 24d: 64                    fs
 24e: 06                    (bad)  
 24f: 64 00 01              add    %al,%fs:(%rcx)
 252: 33 49 00              xor    0x0(%rcx),%ecx
 255: 00 00                 add    %al,(%rax)
 257: 02 91 60 06 65 00     add    0x650660(%rcx),%dl
 25d: 01 34 49              add    %esi,(%rcx,%rcx,2)
 260: 00 00                 add    %al,(%rax)
 262: 00 02                 add    %al,(%rdx)
 264: 91                    xchg   %eax,%ecx
 265: 5c                    pop    %rsp
 266: 06                    (bad)  
 267: 66                    data16
 268: 00 01                 add    %al,(%rcx)
 26a: 35 49 00 00 00        xor    $0x49,%eax
 26f: 02 91 58 06 67 00     add    0x670658(%rcx),%dl
 275: 01 36                 add    %esi,(%rsi)
 277: 49 00 00              rex.WB add    %al,(%r8)
 27a: 00 02                 add    %al,(%rdx)
 27c: 91                    xchg   %eax,%ecx
 27d: 54                    push   %rsp
 27e: 06                    (bad)  
 27f: 68 00 01 37 49        pushq  $0x49370100
 284: 00 00                 add    %al,(%rax)
 286: 00 02                 add    %al,(%rdx)
 288: 91                    xchg   %eax,%ecx
 289: 50                    push   %rax
 28a: 06                    (bad)  
 28b: 72 65                 jb     2f2 
 28d: 74 00                 je     28f 
 28f: 01 38                 add    %edi,(%rax)
 291: 49 00 00              rex.WB add    %al,(%r8)
 294: 00 02                 add    %al,(%rdx)
 296: 91                    xchg   %eax,%ecx
 297: 4c 00 00              rex.WR add    %r8b,(%rax)
Disassembly of section .debug_abbrev:

0000000000000000 <.debug_abbrev>:
   0: 01 11                 add    %edx,(%rcx)
   2: 01 25 0e 13 0b 03     add    %esp,0x30b130e(%rip)        # 30b1316 <_end x2ab0686="">
   8: 0e                    (bad)  
   9: 1b 0e                 sbb    (%rsi),%ecx
   b: 11 01                 adc    %eax,(%rcx)
   d: 12 07                 adc    (%rdi),%al
   f: 10 17                 adc    %dl,(%rdi)
  11: 00 00                 add    %al,(%rax)
  13: 02 24 00              add    (%rax,%rax,1),%ah
  16: 0b 0b                 or     (%rbx),%ecx
  18: 3e 0b 03              or     %ds:(%rbx),%eax
  1b: 0e                    (bad)  
  1c: 00 00                 add    %al,(%rax)
  1e: 03 24 00              add    (%rax,%rax,1),%esp
  21: 0b 0b                 or     (%rbx),%ecx
  23: 3e 0b 03              or     %ds:(%rbx),%eax
  26: 08 00                 or     %al,(%rax)
  28: 00 04 2e              add    %al,(%rsi,%rbp,1)
  2b: 01 3f                 add    %edi,(%rdi)
  2d: 19 03                 sbb    %eax,(%rbx)
  2f: 0e                    (bad)  
  30: 3a 0b                 cmp    (%rbx),%cl
  32: 3b 0b                 cmp    (%rbx),%ecx
  34: 27                    (bad)  
  35: 19 49 13              sbb    %ecx,0x13(%rcx)
  38: 11 01                 adc    %eax,(%rcx)
  3a: 12 07                 adc    (%rdi),%al
  3c: 40 18 97 42 19 01 13  sbb    %dl,0x13011942(%rdi)
  43: 00 00                 add    %al,(%rax)
  45: 05 05 00 03 08        add    $0x8030005,%eax
  4a: 3a 0b                 cmp    (%rbx),%cl
  4c: 3b 0b                 cmp    (%rbx),%ecx
  4e: 49 13 02              adc    (%r10),%rax
  51: 18 00                 sbb    %al,(%rax)
  53: 00 06                 add    %al,(%rsi)
  55: 34 00                 xor    $0x0,%al
  57: 03 08                 add    (%rax),%ecx
  59: 3a 0b                 cmp    (%rbx),%cl
  5b: 3b 0b                 cmp    (%rbx),%ecx
  5d: 49 13 02              adc    (%r10),%rax
  60: 18 00                 sbb    %al,(%rax)
  62: 00 07                 add    %al,(%rdi)
  64: 2e 01 3f              add    %edi,%cs:(%rdi)
  67: 19 03                 sbb    %eax,(%rbx)
  69: 0e                    (bad)  
  6a: 3a 0b                 cmp    (%rbx),%cl
  6c: 3b 0b                 cmp    (%rbx),%ecx
  6e: 27                    (bad)  
  6f: 19 49 13              sbb    %ecx,0x13(%rcx)
  72: 11 01                 adc    %eax,(%rcx)
  74: 12 07                 adc    (%rdi),%al
  76: 40 18 96 42 19 01 13  sbb    %dl,0x13011942(%rsi)
  7d: 00 00                 add    %al,(%rax)
  7f: 08 2e                 or     %ch,(%rsi)
  81: 01 3f                 add    %edi,(%rdi)
  83: 19 03                 sbb    %eax,(%rbx)
  85: 0e                    (bad)  
  86: 3a 0b                 cmp    (%rbx),%cl
  88: 3b 0b                 cmp    (%rbx),%ecx
  8a: 49 13 11              adc    (%r9),%rdx
  8d: 01 12                 add    %edx,(%rdx)
  8f: 07                    (bad)  
  90: 40 18 96 42 19 00 00  sbb    %dl,0x1942(%rsi)
 ...
Disassembly of section .debug_line:

0000000000000000 <.debug_line>:
   0: 6f                    outsl  %ds:(%rsi),(%dx)
   1: 00 00                 add    %al,(%rax)
   3: 00 02                 add    %al,(%rdx)
   5: 00 2b                 add    %ch,(%rbx)
   7: 00 00                 add    %al,(%rax)
   9: 00 01                 add    %al,(%rcx)
   b: 01 fb                 add    %edi,%ebx
   d: 0e                    (bad)  
   e: 0d 00 01 01 01        or     $0x1010100,%eax
  13: 01 00                 add    %eax,(%rax)
  15: 00 00                 add    %al,(%rax)
  17: 01 00                 add    %eax,(%rax)
  19: 00 01                 add    %al,(%rcx)
  1b: 00 63 61              add    %ah,0x61(%rbx)
  1e: 6c                    insb   (%dx),%es:(%rdi)
  1f: 6c                    insb   (%dx),%es:(%rdi)
  20: 73 74                 jae    96 
  22: 61                    (bad)  
  23: 74 63                 je     88 
  25: 6b 5f 6f 62           imul   $0x62,0x6f(%rdi),%ebx
  29: 73 65                 jae    90 
  2b: 72 76                 jb     a3 
  2d: 65 2e 63 00           movslq %cs:%gs:(%rax),%eax
  31: 00 00                 add    %al,(%rax)
  33: 00 00                 add    %al,(%rax)
  35: 00 09                 add    %cl,(%rcx)
  37: 02 76 07              add    0x7(%rsi),%dh
  3a: 40 00 00              add    %al,(%rax)
  3d: 00 00                 add    %al,(%rax)
  3f: 00 15 9f 75 76 ad     add    %dl,-0x52898a61(%rip)        # ffffffffad7675e4 <_end xffffffffad166954="">
  45: 68 3d 32 08 3d        pushq  $0x3d08323d
  4a: 75 75                 jne    c1 
  4c: 76 08                 jbe    56 
  4e: 22 f3                 and    %bl,%dh
  50: 68 3d 34 08 ad        pushq  $0xffffffffad08343d
  55: 75 75                 jne    cc 
  57: 76 08                 jbe    61 
  59: 76 08                 jbe    63 
  5b: 91                    xchg   %eax,%ecx
  5c: 68 3d 31 83 75        pushq  $0x7583313d
  61: 75 75                 jne    d8 
  63: 75 75                 jne    da 
  65: 75 75                 jne    dc 
  67: 75 76                 jne    df 
  69: 02 2a                 add    (%rdx),%ch
  6b: 14 08                 adc    $0x8,%al
  6d: 84 02                 test   %al,(%rdx)
  6f: 02 00                 add    (%rax),%al
  71: 01 01                 add    %eax,(%rcx)
Disassembly of section .debug_str:

0000000000000000 <.debug_str>:
   0: 47                    rex.RXB
   1: 4e 55                 rex.WRX push   %rbp
   3: 20 43 31              and    %al,0x31(%rbx)
   6: 31 20                 xor    %esp,(%rax)
   8: 35 2e 34 2e 30        xor    $0x302e342e,%eax
   d: 20 2d 6d 74 75 6e     and    %ch,0x6e75746d(%rip)        # 6e757480 <_end x6e1567f0="">
  13: 65                    gs
  14: 3d 67 65 6e 65        cmp    $0x656e6567,%eax
  19: 72 69                 jb     84 
  1b: 63 20                 movslq (%rax),%esp
  1d: 2d 6d 61 72 63        sub    $0x6372616d,%eax
  22: 68 3d 78 38 36        pushq  $0x3638783d
  27: 2d 36 34 20 2d        sub    $0x2d203436,%eax
  2c: 67 20 2d 4f 30 00 73  addr32 and %ch,0x7300304f(%rip)        # 73003082 <_end x72a023f2="">
  33: 68 6f 72 74 20        pushq  $0x2074726f
  38: 69 6e 74 00 73 69 7a  imul   $0x7a697300,0x74(%rsi),%ebp
  3f: 65                    gs
  40: 74 79                 je     bb 
  42: 70 65                 jo     a9 
  44: 00 66 75              add    %ah,0x75(%rsi)
  47: 6e                    outsb  %ds:(%rsi),(%dx)
  48: 31 00                 xor    %eax,(%rax)
  4a: 66                    data16
  4b: 75 6e                 jne    bb 
  4d: 32 00                 xor    (%rax),%al
  4f: 66                    data16
  50: 75 6e                 jne    c0 
  52: 33 00                 xor    (%rax),%eax
  54: 2f                    (bad)  
  55: 6d                    insl   (%dx),%es:(%rdi)
  56: 79 64                 jns    bc 
  58: 61                    (bad)  
  59: 74 61                 je     bc 
  5b: 2f                    (bad)  
  5c: 68 6f 6d 65 2f        pushq  $0x2f656d6f
  61: 72 61                 jb     c4 
  63: 6e                    outsb  %ds:(%rsi),(%dx)
  64: 6a 65                 pushq  $0x65
  66: 73 69                 jae    d1 
  68: 6e                    outsb  %ds:(%rsi),(%dx)
  69: 2f                    (bad)  
  6a: 6d                    insl   (%dx),%es:(%rdi)
  6b: 79 77                 jns    e4 
  6d: 6f                    outsl  %ds:(%rsi),(%dx)
  6e: 72 6b                 jb     db 
  70: 2f                    (bad)  
  71: 63 61 6c              movslq 0x6c(%rcx),%esp
  74: 6c                    insb   (%dx),%es:(%rdi)
  75: 73 74                 jae    eb 
  77: 61                    (bad)  
  78: 74 63                 je     dd 
  7a: 6b 5f 6f 62           imul   $0x62,0x6f(%rdi),%ebx
  7e: 73 65                 jae    e5 
  80: 72 76                 jb     f8 
  82: 65 00 6d 61           add    %ch,%gs:0x61(%rbp)
  86: 69 6e 00 66 6c 6f 61  imul   $0x616f6c66,0x0(%rsi),%ebp
  8d: 74 00                 je     8f 
  8f: 6c                    insb   (%dx),%es:(%rdi)
  90: 6f                    outsl  %ds:(%rsi),(%dx)
  91: 6e                    outsb  %ds:(%rsi),(%dx)
  92: 67 20 6c 6f 6e        addr32 and %ch,0x6e(%edi,%ebp,2)
  97: 67 20 69 6e           addr32 and %ch,0x6e(%ecx)
  9b: 74 00                 je     9d 
  9d: 6c                    insb   (%dx),%es:(%rdi)
  9e: 6f                    outsl  %ds:(%rsi),(%dx)
  9f: 6e                    outsb  %ds:(%rsi),(%dx)
  a0: 67 20 64 6f 75        addr32 and %ah,0x75(%edi,%ebp,2)
  a5: 62                    (bad)  
  a6: 6c                    insb   (%dx),%es:(%rdi)
  a7: 65 00 75 6e           add    %dh,%gs:0x6e(%rbp)
  ab: 73 69                 jae    116 
  ad: 67 6e                 addr32 outsb %ds:(%esi),(%dx)
  af: 65 64 20 63 68        and    %ah,%fs:%gs:0x68(%rbx)
  b4: 61                    (bad)  
  b5: 72 00                 jb     b7 
  b7: 73 68                 jae    121 
  b9: 6f                    outsl  %ds:(%rsi),(%dx)
  ba: 72 74                 jb     130 
  bc: 20 75 6e              and    %dh,0x6e(%rbp)
  bf: 73 69                 jae    12a 
  c1: 67 6e                 addr32 outsb %ds:(%esi),(%dx)
  c3: 65 64 20 69 6e        and    %ch,%fs:%gs:0x6e(%rcx)
  c8: 74 00                 je     ca 
  ca: 6c                    insb   (%dx),%es:(%rdi)
  cb: 6f                    outsl  %ds:(%rsi),(%dx)
  cc: 6e                    outsb  %ds:(%rsi),(%dx)
  cd: 67 20 75 6e           addr32 and %dh,0x6e(%ebp)
  d1: 73 69                 jae    13c 
  d3: 67 6e                 addr32 outsb %ds:(%esi),(%dx)
  d5: 65 64 20 69 6e        and    %ch,%fs:%gs:0x6e(%rcx)
  da: 74 00                 je     dc 
  dc: 63 61 6c              movslq 0x6c(%rcx),%esp
  df: 6c                    insb   (%dx),%es:(%rdi)
  e0: 73 74                 jae    156 
  e2: 61                    (bad)  
  e3: 74 63                 je     148 
  e5: 6b 5f 6f 62           imul   $0x62,0x6f(%rdi),%ebx
  e9: 73 65                 jae    150 
  eb: 72 76                 jb     163 
  ed: 65 2e 63 00           movslq %cs:%gs:(%rax),%eax