diff --git a/src/cmd/link/doc.go b/src/cmd/link/doc.go
index a5701327141ecb..4678a6c82c7b51 100644
--- a/src/cmd/link/doc.go
+++ b/src/cmd/link/doc.go
@@ -87,6 +87,9 @@ Flags:
 		instead of $GOROOT/pkg/$GOOS_$GOARCH.
 	-k symbol
 		Set field tracking symbol. Use this flag when GOEXPERIMENT=fieldtrack is set.
+	-bindnow
+		When linking externally and marking variables read-only after relocation, also require
+		immediate function binding (default true)
 	-libgcc file
 		Set name of compiler support library.
 		This is only used in internal link mode.
diff --git a/src/cmd/link/internal/ld/lib.go b/src/cmd/link/internal/ld/lib.go
index 04b2556ea1ecb6..4d3d8c3edce215 100644
--- a/src/cmd/link/internal/ld/lib.go
+++ b/src/cmd/link/internal/ld/lib.go
@@ -1404,6 +1404,17 @@ func (ctxt *Link) hostlink() {
 		return argv
 	}
 
+	// Enables Full/Partial RELRO.
+	addRELROargs := func(argv []string) []string {
+		relro := "-Wl,-z,relro"
+		// Enable Full RELRO
+		if *FlagBindNow {
+			relro += ",-z,now"
+		}
+		argv = append(argv, relro)
+		return argv
+	}
+
 	switch ctxt.BuildMode {
 	case BuildModeExe:
 		if ctxt.HeadType == objabi.Hdarwin {
@@ -1420,7 +1431,7 @@ func (ctxt *Link) hostlink() {
 		default:
 			// ELF.
 			if ctxt.UseRelro() {
-				argv = append(argv, "-Wl,-z,relro")
+				argv = addRELROargs(argv)
 			}
 			argv = append(argv, "-pie")
 		}
@@ -1429,7 +1440,7 @@ func (ctxt *Link) hostlink() {
 			argv = append(argv, "-dynamiclib")
 		} else {
 			if ctxt.UseRelro() {
-				argv = append(argv, "-Wl,-z,relro")
+				argv = addRELROargs(argv)
 			}
 			argv = append(argv, "-shared")
 			if ctxt.HeadType == objabi.Hwindows {
@@ -1444,7 +1455,7 @@ func (ctxt *Link) hostlink() {
 		}
 	case BuildModeShared:
 		if ctxt.UseRelro() {
-			argv = append(argv, "-Wl,-z,relro")
+			argv = addRELROargs(argv)
 		}
 		argv = append(argv, "-shared")
 	case BuildModePlugin:
@@ -1452,7 +1463,7 @@ func (ctxt *Link) hostlink() {
 			argv = append(argv, "-dynamiclib")
 		} else {
 			if ctxt.UseRelro() {
-				argv = append(argv, "-Wl,-z,relro")
+				argv = addRELROargs(argv)
 			}
 			argv = append(argv, "-shared")
 		}
diff --git a/src/cmd/link/internal/ld/main.go b/src/cmd/link/internal/ld/main.go
index c52e6e909d8476..2f3c613d3040cf 100644
--- a/src/cmd/link/internal/ld/main.go
+++ b/src/cmd/link/internal/ld/main.go
@@ -95,6 +95,7 @@ var (
 	FlagDebugTextSize = flag.Int("debugtextsize", 0, "debug text section max size")
 	flagDebugNosplit  = flag.Bool("debugnosplit", false, "dump nosplit call graph")
 	FlagStrictDups    = flag.Int("strictdups", 0, "sanity check duplicate symbol contents during object file reading (1=warn 2=err).")
+	FlagBindNow       = flag.Bool("bindnow", true, "bind function calls when linking externally")
 	FlagRound         = flag.Int("R", -1, "set address rounding `quantum`")
 	FlagTextAddr      = flag.Int64("T", -1, "set text segment `address`")
 	flagEntrySymbol   = flag.String("E", "", "set `entry` symbol name")