if err != nil {
				t.Fatalf("failed to get DT_FLAGS_1: %v", err)
			}

			gotDfBindNow := gotDynFlag(flags, uint64(elf.DF_BIND_NOW))
			gotDf1Now := gotDynFlag(flags1, uint64(elf.DF_1_NOW))

			bindNowFlagsMatch := gotDfBindNow == test.wantDfBindNow && gotDf1Now == test.wantDf1Now

			// some external linkers may set one of the two flags but not both.
			if !test.mustInternalLink {

pkg debug/elf, const DF_1_NOOPEN DynFlag1 #56887
pkg debug/elf, const DF_1_NORELOC = 4194304 #56887
pkg debug/elf, const DF_1_NORELOC DynFlag1 #56887
pkg debug/elf, const DF_1_NOW = 1 #56887
pkg debug/elf, const DF_1_NOW DynFlag1 #56887
pkg debug/elf, const DF_1_ORIGIN = 128 #56887
pkg debug/elf, const DF_1_ORIGIN DynFlag1 #56887
pkg debug/elf, const DF_1_PIE = 134217728 #56887

// DT_FLAGS_1 values.
type DynFlag1 uint32

const (
	// Indicates that all relocations for this object must be processed before
	// returning control to the program.
	DF_1_NOW DynFlag1 = 0x00000001
	// Unused.
	DF_1_GLOBAL DynFlag1 = 0x00000002
	// Indicates that the object is a member of a group.
	DF_1_GROUP DynFlag1 = 0x00000004

		} else {
			s.AddUint16(ctxt.Arch, uint16(need[i].num))
		}
	}

	s = ldr.CreateSymForUpdate(".dynamic", 0)

	var dtFlags1 elf.DynFlag1
	if *flagBindNow {
		dtFlags1 |= elf.DF_1_NOW
		Elfwritedynent(ctxt.Arch, s, elf.DT_FLAGS, uint64(elf.DF_BIND_NOW))
	}
	if ctxt.BuildMode == BuildModePIE {
		dtFlags1 |= elf.DF_1_PIE
	}
	Elfwritedynent(ctxt.Arch, s, elf.DT_FLAGS_1, uint64(dtFlags1))

		{"DF_1_NODIRECT", Const, 21},
		{"DF_1_NODUMP", Const, 21},
		{"DF_1_NOHDR", Const, 21},
		{"DF_1_NOKSYMS", Const, 21},
		{"DF_1_NOOPEN", Const, 21},
		{"DF_1_NORELOC", Const, 21},
		{"DF_1_NOW", Const, 21},
		{"DF_1_ORIGIN", Const, 21},
		{"DF_1_PIE", Const, 21},
		{"DF_1_SINGLETON", Const, 21},
		{"DF_1_STUB", Const, 21},
		{"DF_1_SYMINTPOSE", Const, 21},
		{"DF_1_TRANS", Const, 21},