github.com/afumu/libc@v0.0.6/musl/src/process/x86_64/vfork.s (about)

     1  .global vfork
     2  .type vfork,@function
     3  vfork:
     4  	pop %rdx
     5  	mov $58,%eax
     6  	syscall
     7  	push %rdx
     8  	mov %rax,%rdi
     9  	.hidden __syscall_ret
    10  	jmp __syscall_ret