1 #include<stdio.h>2 int main()3 {4     printf("hello world!\n");5     return 0;6 7 }

  1 # 1 "hello.c"  2 # 1 "<command-line>"  3 # 1 "/usr/include/stdc-predef.h" 1 3 4  4 # 1 "<command-line>" 2  5 # 1 "hello.c"  6 # 1 "/usr/include/stdio.h" 1 3 4  7 # 27 "/usr/include/stdio.h" 3 4  8 # 1 "/usr/include/features.h" 1 3 4  9 # 374 "/usr/include/features.h" 3 4 10 # 1 "/usr/include/x86_64-linux-gnu/sys/cdefs.h" 1 3 4 11 # 385 "/usr/include/x86_64-linux-gnu/sys/cdefs.h" 3 4 12 # 1 "/usr/include/x86_64-linux-gnu/bits/wordsize.h" 1 3 4 13 # 386 "/usr/include/x86_64-linux-gnu/sys/cdefs.h" 2 3 4 14 # 375 "/usr/include/features.h" 2 3 4 15 # 398 "/usr/include/features.h" 3 4 16 # 1 "/usr/include/x86_64-linux-gnu/gnu/stubs.h" 1 3 4 17 # 10 "/usr/include/x86_64-linux-gnu/gnu/stubs.h" 3 4 18 # 1 "/usr/include/x86_64-linux-gnu/gnu/stubs-64.h" 1 3 4 19 # 11 "/usr/include/x86_64-linux-gnu/gnu/stubs.h" 2 3 4 20 # 399 "/usr/include/features.h" 2 3 4 21 # 28 "/usr/include/stdio.h" 2 3 4 22  23  24  25  26  27 # 1 "/usr/lib/gcc/x86_64-linux-gnu/4.8/include/stddef.h" 1 3 4 28 # 212 "/usr/lib/gcc/x86_64-linux-gnu/4.8/include/stddef.h" 3 4 29 typedef long unsigned int size_t; 30 # 34 "/usr/include/stdio.h" 2 3 4 31  32 # 1 "/usr/include/x86_64-linux-gnu/bits/types.h" 1 3 4 33 # 27 "/usr/include/x86_64-linux-gnu/bits/types.h" 3 4 34 # 1 "/usr/include/x86_64-linux-gnu/bits/wordsize.h" 1 3 4 35 # 28 "/usr/include/x86_64-linux-gnu/bits/types.h" 2 3 4 36  37  38 typedef unsigned char __u_char; 39 typedef unsigned short int __u_short; 40 typedef unsigned int __u_int; 41 typedef unsigned long int __u_long; 42  43  44 typedef signed char __int8_t; 45 typedef unsigned char __uint8_t; 46 typedef signed short int __int16_t; 47 typedef unsigned short int __uint16_t; 48 typedef signed int __int32_t; 49 typedef unsigned int __uint32_t; 50  51 typedef signed long int __int64_t; 52 typedef unsigned long int __uint64_t; 53  54  55  56  57  58  59  60 typedef long int __quad_t; 61 typedef unsigned long int __u_quad_t; 62 # 121 "/usr/include/x86_64-linux-gnu/bits/types.h" 3 4 63 # 1 "/usr/include/x86_64-linux-gnu/bits/typesizes.h" 1 3 4 64 # 122 "/usr/include/x86_64-linux-gnu/bits/types.h" 2 3 4 65  66  67 typedef unsigned long int __dev_t; 68 typedef unsigned int __uid_t; 69 typedef unsigned int __gid_t; 70 typedef unsigned long int __ino_t; 71 typedef unsigned long int __ino64_t; 72 typedef unsigned int __mode_t; 73 typedef unsigned long int __nlink_t; 74 typedef long int __off_t; 75 typedef long int __off64_t; 76 typedef int __pid_t; 77 typedef struct { int __val[2]; } __fsid_t; 78 typedef long int __clock_t; 79 typedef unsigned long int __rlim_t; 80 typedef unsigned long int __rlim64_t; 81 typedef unsigned int __id_t; 82 typedef long int __time_t; 83 typedef unsigned int __useconds_t; 84 typedef long int __suseconds_t; 85  86 typedef int __daddr_t; 87 typedef int __key_t; 88  89  90 typedef int __clockid_t; 91  92  93 typedef void * __timer_t; 94  95  96 typedef long int __blksize_t; 97  98  99 100 101 typedef long int __blkcnt_t;102 typedef long int __blkcnt64_t;103 104 105 typedef unsigned long int __fsblkcnt_t;106 typedef unsigned long int __fsblkcnt64_t;107 108 109 typedef unsigned long int __fsfilcnt_t;110 typedef unsigned long int __fsfilcnt64_t;111 112 113 typedef long int __fsword_t;114 115 typedef long int __ssize_t;116 117 118 typedef long int __syscall_slong_t;119 120 typedef unsigned long int __syscall_ulong_t;121 122 123 124 typedef __off64_t __loff_t;125 typedef __quad_t *__qaddr_t;126 typedef char *__caddr_t;127 128 129 typedef long int __intptr_t;130 131 132 typedef unsigned int __socklen_t;133 # 36 "/usr/include/stdio.h" 2 3 4134 # 44 "/usr/include/stdio.h" 3 4135 struct _IO_FILE;136 137 138 139 typedef struct _IO_FILE FILE;140 141 142 143 144 145 # 64 "/usr/include/stdio.h" 3 4146 typedef struct _IO_FILE __FILE;147 # 74 "/usr/include/stdio.h" 3 4148 # 1 "/usr/include/libio.h" 1 3 4149 # 31 "/usr/include/libio.h" 3 4150 # 1 "/usr/include/_G_config.h" 1 3 4151 # 15 "/usr/include/_G_config.h" 3 4152 # 1 "/usr/lib/gcc/x86_64-linux-gnu/4.8/include/stddef.h" 1 3 4153 # 16 "/usr/include/_G_config.h" 2 3 4154 155 156 157 158 # 1 "/usr/include/wchar.h" 1 3 4159 # 82 "/usr/include/wchar.h" 3 4160 typedef struct161 {162   int __count;163   union164   {165 166     unsigned int __wch;167 168 169 170     char __wchb[4];171   } __value;172 } __mbstate_t;173 # 21 "/usr/include/_G_config.h" 2 3 4174 typedef struct175 {176   __off_t __pos;177   __mbstate_t __state;178 } _G_fpos_t;179 typedef struct180 {181   __off64_t __pos;182   __mbstate_t __state;183 } _G_fpos64_t;184 # 32 "/usr/include/libio.h" 2 3 4185 # 49 "/usr/include/libio.h" 3 4186 # 1 "/usr/lib/gcc/x86_64-linux-gnu/4.8/include/stdarg.h" 1 3 4187 # 40 "/usr/lib/gcc/x86_64-linux-gnu/4.8/include/stdarg.h" 3 4188 typedef __builtin_va_list __gnuc_va_list;189 # 50 "/usr/include/libio.h" 2 3 4190 # 144 "/usr/include/libio.h" 3 4191 struct _IO_jump_t; struct _IO_FILE;192 # 154 "/usr/include/libio.h" 3 4193 typedef void _IO_lock_t;194 195 196 197 198 199 struct _IO_marker {200   struct _IO_marker *_next;201   struct _IO_FILE *_sbuf;202 203 204 205   int _pos;206 # 177 "/usr/include/libio.h" 3 4207 };208 209 210 enum __codecvt_result211 {212   __codecvt_ok,213   __codecvt_partial,214   __codecvt_error,215   __codecvt_noconv216 };217 # 245 "/usr/include/libio.h" 3 4218 struct _IO_FILE {219   int _flags;220 221 222 223 224   char* _IO_read_ptr;225   char* _IO_read_end;226   char* _IO_read_base;227   char* _IO_write_base;228   char* _IO_write_ptr;229   char* _IO_write_end;230   char* _IO_buf_base;231   char* _IO_buf_end;232 233   char *_IO_save_base;234   char *_IO_backup_base;235   char *_IO_save_end;236 237   struct _IO_marker *_markers;238 239   struct _IO_FILE *_chain;240 241   int _fileno;242 243 244 245   int _flags2;246 247   __off_t _old_offset;248 249 250 251   unsigned short _cur_column;252   signed char _vtable_offset;253   char _shortbuf[1];254 255 256 257   _IO_lock_t *_lock;258 # 293 "/usr/include/libio.h" 3 4259   __off64_t _offset;260 # 302 "/usr/include/libio.h" 3 4261   void *__pad1;262   void *__pad2;263   void *__pad3;264   void *__pad4;265   size_t __pad5;266 267   int _mode;268 269   char _unused2[15 * sizeof (int) - 4 * sizeof (void *) - sizeof (size_t)];270 271 };272 273 274 typedef struct _IO_FILE _IO_FILE;275 276 277 struct _IO_FILE_plus;278 279 extern struct _IO_FILE_plus _IO_2_1_stdin_;280 extern struct _IO_FILE_plus _IO_2_1_stdout_;281 extern struct _IO_FILE_plus _IO_2_1_stderr_;282 # 338 "/usr/include/libio.h" 3 4283 typedef __ssize_t __io_read_fn (void *__cookie, char *__buf, size_t __nbytes);284 285 286 287 288 289 290 291 typedef __ssize_t __io_write_fn (void *__cookie, const char *__buf,292      size_t __n);293 294 295 296 297 298 299 300 typedef int __io_seek_fn (void *__cookie, __off64_t *__pos, int __w);301 302 303 typedef int __io_close_fn (void *__cookie);304 # 390 "/usr/include/libio.h" 3 4305 extern int __underflow (_IO_FILE *);306 extern int __uflow (_IO_FILE *);307 extern int __overflow (_IO_FILE *, int);308 # 434 "/usr/include/libio.h" 3 4309 extern int _IO_getc (_IO_FILE *__fp);310 extern int _IO_putc (int __c, _IO_FILE *__fp);311 extern int _IO_feof (_IO_FILE *__fp) __attribute__ ((__nothrow__ , __leaf__));312 extern int _IO_ferror (_IO_FILE *__fp) __attribute__ ((__nothrow__ , __leaf__));313 314 extern int _IO_peekc_locked (_IO_FILE *__fp);315 316 317 318 319 320 extern void _IO_flockfile (_IO_FILE *) __attribute__ ((__nothrow__ , __leaf__));321 extern void _IO_funlockfile (_IO_FILE *) __attribute__ ((__nothrow__ , __leaf__));322 extern int _IO_ftrylockfile (_IO_FILE *) __attribute__ ((__nothrow__ , __leaf__));323 # 464 "/usr/include/libio.h" 3 4324 extern int _IO_vfscanf (_IO_FILE * __restrict, const char * __restrict,325    __gnuc_va_list, int *__restrict);326 extern int _IO_vfprintf (_IO_FILE *__restrict, const char *__restrict,327     __gnuc_va_list);328 extern __ssize_t _IO_padn (_IO_FILE *, int, __ssize_t);329 extern size_t _IO_sgetn (_IO_FILE *, void *, size_t);330 331 extern __off64_t _IO_seekoff (_IO_FILE *, __off64_t, int, int);332 extern __off64_t _IO_seekpos (_IO_FILE *, __off64_t, int);333 334 extern void _IO_free_backup_area (_IO_FILE *) __attribute__ ((__nothrow__ , __leaf__));335 # 75 "/usr/include/stdio.h" 2 3 4336 337 338 339 340 typedef __gnuc_va_list va_list;341 # 90 "/usr/include/stdio.h" 3 4342 typedef __off_t off_t;343 # 102 "/usr/include/stdio.h" 3 4344 typedef __ssize_t ssize_t;345 346 347 348 349 350 351 352 typedef _G_fpos_t fpos_t;353 354 355 356 357 # 164 "/usr/include/stdio.h" 3 4358 # 1 "/usr/include/x86_64-linux-gnu/bits/stdio_lim.h" 1 3 4359 # 165 "/usr/include/stdio.h" 2 3 4360 361 362 363 extern struct _IO_FILE *stdin;364 extern struct _IO_FILE *stdout;365 extern struct _IO_FILE *stderr;366 367 368 369 370 371 372 373 extern int remove (const char *__filename) __attribute__ ((__nothrow__ , __leaf__));374 375 extern int rename (const char *__old, const char *__new) __attribute__ ((__nothrow__ , __leaf__));376 377 378 379 380 extern int renameat (int __oldfd, const char *__old, int __newfd,381        const char *__new) __attribute__ ((__nothrow__ , __leaf__));382 383 384 385 386 387 388 389 390 extern FILE *tmpfile (void) ;391 # 209 "/usr/include/stdio.h" 3 4392 extern char *tmpnam (char *__s) __attribute__ ((__nothrow__ , __leaf__)) ;393 394 395 396 397 398 extern char *tmpnam_r (char *__s) __attribute__ ((__nothrow__ , __leaf__)) ;399 # 227 "/usr/include/stdio.h" 3 4400 extern char *tempnam (const char *__dir, const char *__pfx)401      __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__malloc__)) ;402 403 404 405 406 407 408 409 410 extern int fclose (FILE *__stream);411 412 413 414 415 extern int fflush (FILE *__stream);416 417 # 252 "/usr/include/stdio.h" 3 4418 extern int fflush_unlocked (FILE *__stream);419 # 266 "/usr/include/stdio.h" 3 4420 421 422 423 424 425 426 extern FILE *fopen (const char *__restrict __filename,427       const char *__restrict __modes) ;428 429 430 431 432 extern FILE *freopen (const char *__restrict __filename,433         const char *__restrict __modes,434         FILE *__restrict __stream) ;435 # 295 "/usr/include/stdio.h" 3 4436 437 # 306 "/usr/include/stdio.h" 3 4438 extern FILE *fdopen (int __fd, const char *__modes) __attribute__ ((__nothrow__ , __leaf__)) ;439 # 319 "/usr/include/stdio.h" 3 4440 extern FILE *fmemopen (void *__s, size_t __len, const char *__modes)441   __attribute__ ((__nothrow__ , __leaf__)) ;442 443 444 445 446 extern FILE *open_memstream (char **__bufloc, size_t *__sizeloc) __attribute__ ((__nothrow__ , __leaf__)) ;447 448 449 450 451 452 453 extern void setbuf (FILE *__restrict __stream, char *__restrict __buf) __attribute__ ((__nothrow__ , __leaf__));454 455 456 457 extern int setvbuf (FILE *__restrict __stream, char *__restrict __buf,458       int __modes, size_t __n) __attribute__ ((__nothrow__ , __leaf__));459 460 461 462 463 464 extern void setbuffer (FILE *__restrict __stream, char *__restrict __buf,465          size_t __size) __attribute__ ((__nothrow__ , __leaf__));466 467 468 extern void setlinebuf (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__));469 470 471 472 473 474 475 476 477 extern int fprintf (FILE *__restrict __stream,478       const char *__restrict __format, ...);479 480 481 482 483 extern int printf (const char *__restrict __format, ...);484 485 extern int sprintf (char *__restrict __s,486       const char *__restrict __format, ...) __attribute__ ((__nothrow__));487 488 489 490 491 492 extern int vfprintf (FILE *__restrict __s, const char *__restrict __format,493        __gnuc_va_list __arg);494 495 496 497 498 extern int vprintf (const char *__restrict __format, __gnuc_va_list __arg);499 500 extern int vsprintf (char *__restrict __s, const char *__restrict __format,501        __gnuc_va_list __arg) __attribute__ ((__nothrow__));502 503 504 505 506 507 extern int snprintf (char *__restrict __s, size_t __maxlen,508        const char *__restrict __format, ...)509      __attribute__ ((__nothrow__)) __attribute__ ((__format__ (__printf__, 3, 4)));510 511 extern int vsnprintf (char *__restrict __s, size_t __maxlen,512         const char *__restrict __format, __gnuc_va_list __arg)513      __attribute__ ((__nothrow__)) __attribute__ ((__format__ (__printf__, 3, 0)));514 515 # 412 "/usr/include/stdio.h" 3 4516 extern int vdprintf (int __fd, const char *__restrict __fmt,517        __gnuc_va_list __arg)518      __attribute__ ((__format__ (__printf__, 2, 0)));519 extern int dprintf (int __fd, const char *__restrict __fmt, ...)520      __attribute__ ((__format__ (__printf__, 2, 3)));521 522 523 524 525 526 527 528 529 extern int fscanf (FILE *__restrict __stream,530      const char *__restrict __format, ...) ;531 532 533 534 535 extern int scanf (const char *__restrict __format, ...) ;536 537 extern int sscanf (const char *__restrict __s,538      const char *__restrict __format, ...) __attribute__ ((__nothrow__ , __leaf__));539 # 443 "/usr/include/stdio.h" 3 4540 extern int fscanf (FILE *__restrict __stream, const char *__restrict __format, ...) __asm__ ("" "__isoc99_fscanf")541 542                                ;543 extern int scanf (const char *__restrict __format, ...) __asm__ ("" "__isoc99_scanf")544                               ;545 extern int sscanf (const char *__restrict __s, const char *__restrict __format, ...) __asm__ ("" "__isoc99_sscanf") __attribute__ ((__nothrow__ , __leaf__))546 547                       ;548 # 463 "/usr/include/stdio.h" 3 4549 550 551 552 553 554 555 556 557 extern int vfscanf (FILE *__restrict __s, const char *__restrict __format,558       __gnuc_va_list __arg)559      __attribute__ ((__format__ (__scanf__, 2, 0))) ;560 561 562 563 564 565 extern int vscanf (const char *__restrict __format, __gnuc_va_list __arg)566      __attribute__ ((__format__ (__scanf__, 1, 0))) ;567 568 569 extern int vsscanf (const char *__restrict __s,570       const char *__restrict __format, __gnuc_va_list __arg)571      __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__format__ (__scanf__, 2, 0)));572 # 494 "/usr/include/stdio.h" 3 4573 extern int vfscanf (FILE *__restrict __s, const char *__restrict __format, __gnuc_va_list __arg) __asm__ ("" "__isoc99_vfscanf")574 575 576 577      __attribute__ ((__format__ (__scanf__, 2, 0))) ;578 extern int vscanf (const char *__restrict __format, __gnuc_va_list __arg) __asm__ ("" "__isoc99_vscanf")579 580      __attribute__ ((__format__ (__scanf__, 1, 0))) ;581 extern int vsscanf (const char *__restrict __s, const char *__restrict __format, __gnuc_va_list __arg) __asm__ ("" "__isoc99_vsscanf") __attribute__ ((__nothrow__ , __leaf__))582 583 584 585      __attribute__ ((__format__ (__scanf__, 2, 0)));586 # 522 "/usr/include/stdio.h" 3 4587 588 589 590 591 592 593 594 595 596 extern int fgetc (FILE *__stream);597 extern int getc (FILE *__stream);598 599 600 601 602 603 extern int getchar (void);604 605 # 550 "/usr/include/stdio.h" 3 4606 extern int getc_unlocked (FILE *__stream);607 extern int getchar_unlocked (void);608 # 561 "/usr/include/stdio.h" 3 4609 extern int fgetc_unlocked (FILE *__stream);610 611 612 613 614 615 616 617 618 619 620 621 extern int fputc (int __c, FILE *__stream);622 extern int putc (int __c, FILE *__stream);623 624 625 626 627 628 extern int putchar (int __c);629 630 # 594 "/usr/include/stdio.h" 3 4631 extern int fputc_unlocked (int __c, FILE *__stream);632 633 634 635 636 637 638 639 extern int putc_unlocked (int __c, FILE *__stream);640 extern int putchar_unlocked (int __c);641 642 643 644 645 646 647 extern int getw (FILE *__stream);648 649 650 extern int putw (int __w, FILE *__stream);651 652 653 654 655 656 657 658 659 extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream)660      ;661 # 638 "/usr/include/stdio.h" 3 4662 extern char *gets (char *__s) __attribute__ ((__deprecated__));663 664 665 # 665 "/usr/include/stdio.h" 3 4666 extern __ssize_t __getdelim (char **__restrict __lineptr,667           size_t *__restrict __n, int __delimiter,668           FILE *__restrict __stream) ;669 extern __ssize_t getdelim (char **__restrict __lineptr,670         size_t *__restrict __n, int __delimiter,671         FILE *__restrict __stream) ;672 673 674 675 676 677 678 679 extern __ssize_t getline (char **__restrict __lineptr,680        size_t *__restrict __n,681        FILE *__restrict __stream) ;682 683 684 685 686 687 688 689 690 extern int fputs (const char *__restrict __s, FILE *__restrict __stream);691 692 693 694 695 696 extern int puts (const char *__s);697 698 699 700 701 702 703 extern int ungetc (int __c, FILE *__stream);704 705 706 707 708 709 710 extern size_t fread (void *__restrict __ptr, size_t __size,711        size_t __n, FILE *__restrict __stream) ;712 713 714 715 716 extern size_t fwrite (const void *__restrict __ptr, size_t __size,717         size_t __n, FILE *__restrict __s);718 719 # 737 "/usr/include/stdio.h" 3 4720 extern size_t fread_unlocked (void *__restrict __ptr, size_t __size,721          size_t __n, FILE *__restrict __stream) ;722 extern size_t fwrite_unlocked (const void *__restrict __ptr, size_t __size,723           size_t __n, FILE *__restrict __stream);724 725 726 727 728 729 730 731 732 extern int fseek (FILE *__stream, long int __off, int __whence);733 734 735 736 737 extern long int ftell (FILE *__stream) ;738 739 740 741 742 extern void rewind (FILE *__stream);743 744 # 773 "/usr/include/stdio.h" 3 4745 extern int fseeko (FILE *__stream, __off_t __off, int __whence);746 747 748 749 750 extern __off_t ftello (FILE *__stream) ;751 # 792 "/usr/include/stdio.h" 3 4752 753 754 755 756 757 758 extern int fgetpos (FILE *__restrict __stream, fpos_t *__restrict __pos);759 760 761 762 763 extern int fsetpos (FILE *__stream, const fpos_t *__pos);764 # 815 "/usr/include/stdio.h" 3 4765 766 # 824 "/usr/include/stdio.h" 3 4767 768 769 extern void clearerr (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__));770 771 extern int feof (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__)) ;772 773 extern int ferror (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__)) ;774 775 776 777 778 extern void clearerr_unlocked (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__));779 extern int feof_unlocked (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__)) ;780 extern int ferror_unlocked (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__)) ;781 782 783 784 785 786 787 788 789 extern void perror (const char *__s);790 791 792 793 794 795 796 # 1 "/usr/include/x86_64-linux-gnu/bits/sys_errlist.h" 1 3 4797 # 26 "/usr/include/x86_64-linux-gnu/bits/sys_errlist.h" 3 4798 extern int sys_nerr;799 extern const char *const sys_errlist[];800 # 854 "/usr/include/stdio.h" 2 3 4801 802 803 804 805 extern int fileno (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__)) ;806 807 808 809 810 extern int fileno_unlocked (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__)) ;811 # 873 "/usr/include/stdio.h" 3 4812 extern FILE *popen (const char *__command, const char *__modes) ;813 814 815 816 817 818 extern int pclose (FILE *__stream);819 820 821 822 823 824 extern char *ctermid (char *__s) __attribute__ ((__nothrow__ , __leaf__));825 # 913 "/usr/include/stdio.h" 3 4826 extern void flockfile (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__));827 828 829 830 extern int ftrylockfile (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__)) ;831 832 833 extern void funlockfile (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__));834 # 943 "/usr/include/stdio.h" 3 4835 836 # 2 "hello.c" 2837 int main()838 {839  printf("hello world!\n");840  return 0;841 842 }

 1     .file    "hello.c" 2     .section    .rodata 3 .LC0: 4     .string    "hello world!" 5     .text 6     .globl    main 7     .type    main, @function 8 main: 9 .LFB0:10     .cfi_startproc11     pushq    %rbp12     .cfi_def_cfa_offset 1613     .cfi_offset 6, -1614     movq    %rsp, %rbp15     .cfi_def_cfa_register 616     movl    $.LC0, %edi17     call    puts18     movl    $0, %eax19     popq    %rbp20     .cfi_def_cfa 7, 821     ret22     .cfi_endproc23 .LFE0:24     .size    main, .-main25     .ident    "GCC: (Ubuntu 4.8.2-19ubuntu1) 4.8.2"26     .section    .note.GNU-stack,"",@progbits