o.SetSym(symref)
		o.SetName(rs.Name, w.Writer)
		o.Write(w.Writer)
	})
	// TODO: output in sorted order?
	// Currently tools (cmd/internal/goobj package) doesn't use mmap,
	// and it just read it into a map in memory upfront. If it uses
	// mmap, if the output is sorted, it probably could avoid reading
	// into memory and just do lookups in the mmap'd object file.
}

// return the number of aux symbols s have.

//sys	Unlink(path string) (err error)
//sys	Unmount(path string, flags int) (err error)
//sys	write(fd int, p []byte) (n int, err error)
//sys	writev(fd int, iovecs []Iovec) (cnt uintptr, err error)
//sys   mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
//sys   munmap(addr uintptr, length uintptr) (err error)
//sysnb fork() (pid int, err error)

//sys	Unlink(path string) (err error)
//sys	Unlinkat(dirfd int, path string, flags int) (err error)
//sys	Unmount(path string, flags int) (err error)
//sys	write(fd int, p []byte) (n int, err error)
//sys	mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
//sys	munmap(addr uintptr, length uintptr) (err error)
//sys	utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error)

//sys	Unlink(path string) (err error)
//sys	Unlinkat(dirfd int, path string, flags int) (err error)
//sys	Unmount(path string, flags int) (err error)
//sys	write(fd int, p []byte) (n int, err error)
//sys	mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
//sys	munmap(addr uintptr, length uintptr) (err error)

//sys	Unlink(path string) (err error)
//sys	Unlinkat(dirfd int, path string, flags int) (err error)
//sys	Unmount(path string, flags int) (err error)
//sys	write(fd int, p []byte) (n int, err error)
//sys	mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
//sys	munmap(addr uintptr, length uintptr) (err error)
//sys	getfsstat(stat *Statfs_t, bufsize uintptr, flags int) (n int, err error)

	if r0 == -1 && er != nil {
		err = er
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) {
	r0, er := C.mmap(C.uintptr_t(addr), C.uintptr_t(length), C.int(prot), C.int(flags), C.int(fd), C.longlong(offset))
	xaddr = uintptr(r0)
	if uintptr(r0) == ^uintptr(0) && er != nil {

	n = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) {
	r0, _, e1 := Syscall6(SYS_MMAP, uintptr(addr), uintptr(length), uintptr(prot), uintptr(flags), uintptr(fd), uintptr(offset))

}

// kernelBase calculates the base for kernel mappings, which usually require
// special handling. For kernel mappings, tools (like perf) use the address of
// the kernel relocation symbol (_text or _stext) as the mmap start. Additionally,
// for obfuscation, ChromeOS profiles have the kernel image remapped to the 0-th page.
func kernelBase(loadSegment *elf.ProgHeader, stextOffset *uint64, start, limit, offset uint64) (uint64, bool) {
	const (

	n = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) {
	r0, _, e1 := Syscall6(SYS_MMAP, uintptr(addr), uintptr(length), uintptr(prot), uintptr(flags), uintptr(fd), uintptr(offset))

	MOV	$runtime·sigtrampgo(SB), A0
	JALR	RA, A0
	RET

// func cgoSigtramp()
TEXT runtime·cgoSigtramp(SB),NOSPLIT,$0
	MOV	$runtime·sigtramp(SB), T1
	JALR	ZERO, T1

// func mmap(addr unsafe.Pointer, n uintptr, prot, flags, fd int32, off uint32) (p unsafe.Pointer, err int)
TEXT runtime·mmap(SB),NOSPLIT|NOFRAME,$0
	MOV	addr+0(FP), A0
	MOV	n+8(FP), A1
	MOVW	prot+16(FP), A2
	MOVW	flags+20(FP), A3