Hello World in assembly x64 using AT&T syntax

hello.s

.section .data
msg:
	.asciz "Hello, World!\n"

.section .text
.global main

main:
	mov $1, %rax
	mov $1, %rdi
	lea msg(%rip), %rsi
	mov $14, %rdx
	syscall

	mov $60, %rax
	xor %rdi, %rdi
	syscall

Compile:

gcc hello.s -o hello

Windows x64 MinGW64 version:

.section .data

msg:
    .asciz "Hello, World!"

.section .text
.global main
.extern puts

main:
    sub $40, %rsp
    lea  msg(%rip), %rcx
    call puts
    xor  %eax, %eax
    add $40, %rsp
    ret

Compile (same way) with:

 gcc hello.s -o hello.exe