github.com/afumu/libc@v0.0.6/musl/src/process/i386/vfork.s (about)

     1  .global vfork
     2  .type vfork,@function
     3  vfork:
     4  	pop %edx
     5  	mov $190,%eax
     6  	int $128
     7  	push %edx
     8  	push %eax
     9  	.hidden __syscall_ret
    10  	call __syscall_ret
    11  	pop %edx
    12  	ret