$ cat > hello_world.c
#include <stdio.h>
int main() {
   printf("Hello, World!");
   return 0;
}
^D
$ gcc -g -Wa,-adhln -fverbose-asm hello_world.c > hello_world.s
$ cat hello_world.s
   1              		.file	"hello_world.c"
   2              	# GNU C17 (Debian 10.2.1-6) version 10.2.1 20210110 (x86_64-linux-gnu)
   3              	#	compiled by GNU C version 10.2.1 20210110, GMP version 6.2.1, MPFR version 4.1.0, MPC version 1.2
   4              	
   5              	# GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
   6              	# options passed:  -imultiarch x86_64-linux-gnu hello_world.c
   7              	# -mtune=generic -march=x86-64 -g -fverbose-asm
   8              	# -fasynchronous-unwind-tables
   9              	# options enabled:  -fPIC -fPIE -faggressive-loop-optimizations
  10              	# -fallocation-dce -fasynchronous-unwind-tables -fauto-inc-dec
  11              	# -fdelete-null-pointer-checks -fdwarf2-cfi-asm -fearly-inlining
  12              	# -feliminate-unused-debug-symbols -feliminate-unused-debug-types
  13              	# -ffp-int-builtin-inexact -ffunction-cse -fgcse-lm -fgnu-unique -fident
  14              	# -finline-atomics -fipa-stack-alignment -fira-hoist-pressure
  15              	# -fira-share-save-slots -fira-share-spill-slots -fivopts
  16              	# -fkeep-static-consts -fleading-underscore -flifetime-dse -fmath-errno
  17              	# -fmerge-debug-strings -fpeephole -fplt -fprefetch-loop-arrays
  18              	# -freg-struct-return -fsched-critical-path-heuristic
  19              	# -fsched-dep-count-heuristic -fsched-group-heuristic -fsched-interblock
  20              	# -fsched-last-insn-heuristic -fsched-rank-heuristic -fsched-spec
  21              	# -fsched-spec-insn-heuristic -fsched-stalled-insns-dep -fschedule-fusion
  22              	# -fsemantic-interposition -fshow-column -fshrink-wrap-separate
  23              	# -fsigned-zeros -fsplit-ivs-in-unroller -fssa-backprop -fstdarg-opt
  24              	# -fstrict-volatile-bitfields -fsync-libcalls -ftrapping-math -ftree-cselim
  25              	# -ftree-forwprop -ftree-loop-if-convert -ftree-loop-im -ftree-loop-ivcanon
  26              	# -ftree-loop-optimize -ftree-parallelize-loops= -ftree-phiprop
  27              	# -ftree-reassoc -ftree-scev-cprop -funit-at-a-time -funwind-tables
  28              	# -fverbose-asm -fzero-initialized-in-bss -m128bit-long-double -m64 -m80387
  29              	# -malign-stringops -mavx256-split-unaligned-load
  30              	# -mavx256-split-unaligned-store -mfancy-math-387 -mfp-ret-in-387 -mfxsr
  31              	# -mglibc -mieee-fp -mlong-double-80 -mmmx -mno-sse4 -mpush-args -mred-zone
  32              	# -msse -msse2 -mstv -mtls-direct-seg-refs -mvzeroupper
  33              	
  34              		.text
  35              	.Ltext0:
  36              		.section	.rodata
  37              	.LC0:
  38 0000 48656C6C 		.string	"Hello, World!"
  38      6F2C2057 
  38      6F726C64 
  38      2100
  39              		.text
  40              		.globl	main
  42              	main:
  43              	.LFB0:
  44              		.file 1 "hello_world.c"
   1:hello_world.c **** #include <stdio.h>
   2:hello_world.c **** int main() {
  45              		.loc 1 2 12
  46              		.cfi_startproc
  47 0000 55       		pushq	%rbp	#
  48              		.cfi_def_cfa_offset 16
  49              		.cfi_offset 6, -16
  50 0001 4889E5   		movq	%rsp, %rbp	#,
  51              		.cfi_def_cfa_register 6
  52              	# hello_world.c:3:    printf("Hello, World!");
   3:hello_world.c ****    printf("Hello, World!");
  53              		.loc 1 3 4
  54 0004 488D3D00 		leaq	.LC0(%rip), %rdi	#,
  54      000000
  55 000b B8000000 		movl	$0, %eax	#,
  55      00
  56 0010 E8000000 		call	printf@PLT	#
  56      00
  57              	# hello_world.c:4:    return 0;
   4:hello_world.c ****    return 0;
  58              		.loc 1 4 11
  59 0015 B8000000 		movl	$0, %eax	#, _3
  59      00
  60              	# hello_world.c:5: }
   5:hello_world.c **** }
  61              		.loc 1 5 1
  62 001a 5D       		popq	%rbp	#
  63              		.cfi_def_cfa 7, 8
  64 001b C3       		ret	
  65              		.cfi_endproc
  66              	.LFE0:
  68              	.Letext0:
$