(gdb) disass main
Dump of assembler code for function main:
0x00000000004004a8 <main+0>:    push   %rbp
0x00000000004004a9 <main+1>:    mov    %rsp,%rbp
0x00000000004004ac <main+4>:    sub    $0x110,%rsp
0x00000000004004b3 <main+11>:   mov    %edi,0xfffffffffffffefc(%rbp)
0x00000000004004b9 <main+17>:   mov    %rsi,0xfffffffffffffef0(%rbp)
0x00000000004004c0 <main+24>:   mov    0xfffffffffffffef0(%rbp),%rax
0x00000000004004c7 <main+31>:   add    $0x8,%rax
0x00000000004004cb <main+35>:   mov    (%rax),%rsi
0x00000000004004ce <main+38>:   lea    0xffffffffffffff00(%rbp),%rdi
0x00000000004004d5 <main+45>:   callq  0x4003e0
0x00000000004004da <main+50>:   mov    $0x1,%eax
0x00000000004004df <main+55>:   leaveq
0x00000000004004e0 <main+56>:   retq
0x00000000004004e1 <main+57>:   nop
0x00000000004004e2 <main+58>:   nop
0x00000000004004e3 <main+59>:   nop
0x00000000004004e4 <main+60>:   nop
0x00000000004004e5 <main+61>:   nop
0x00000000004004e6 <main+62>:   nop
0x00000000004004e7 <main+63>:   nop
0x00000000004004e8 <main+64>:   nop
0x00000000004004e9 <main+65>:   nop
0x00000000004004ea <main+66>:   nop
0x00000000004004eb <main+67>:   nop
0x00000000004004ec <main+68>:   nop
0x00000000004004ed <main+69>:   nop
0x00000000004004ee <main+70>:   nop
0x00000000004004ef <main+71>:   nop
End of assembler dump.