cmd/link/internal/ld: unexport ReadOnly and RelROMap

Change-Id: I08e33b92dd8a22e28ec15aa5753904aa8e1c71f5
Reviewed-on: https://go-review.googlesource.com/42031
Run-TryBot: Michael Hudson-Doyle <michael.hudson@canonical.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

src/cmd/link/internal/ld/data.go

@@ -1361,8 +1361,8 @@ func (ctxt *Link) dodata() {
 		// "read only" data with relocations needs to go in its own section
 		// when building a shared library. We do this by boosting objects of
 		// type SXXX with relocations to type SXXXRELRO.
-		for _, symnro := range ReadOnly {
-			symnrelro := RelROMap[symnro]
+		for _, symnro := range readOnly {
+			symnrelro := relROMap[symnro]
 
 			ro := []*Symbol{}
 			relro := data[symnrelro]
@@ -1640,14 +1640,14 @@ func (ctxt *Link) dodata() {
 		ctxt.Syms.Lookup("runtime.types", 0).Sect = sect
 		ctxt.Syms.Lookup("runtime.etypes", 0).Sect = sect
 	}
-	for _, symn := range ReadOnly {
+	for _, symn := range readOnly {
 		align := dataMaxAlign[symn]
 		if sect.Align < align {
 			sect.Align = align
 		}
 	}
 	datsize = Rnd(datsize, int64(sect.Align))
-	for _, symn := range ReadOnly {
+	for _, symn := range readOnly {
 		for _, s := range data[symn] {
 			datsize = aligndatsize(datsize, s)
 			s.Sect = sect
@@ -1720,16 +1720,16 @@ func (ctxt *Link) dodata() {
 		sect.Vaddr = 0
 		ctxt.Syms.Lookup("runtime.types", 0).Sect = sect
 		ctxt.Syms.Lookup("runtime.etypes", 0).Sect = sect
-		for _, symnro := range ReadOnly {
-			symn := RelROMap[symnro]
+		for _, symnro := range readOnly {
+			symn := relROMap[symnro]
 			align := dataMaxAlign[symn]
 			if sect.Align < align {
 				sect.Align = align
 			}
 		}
 		datsize = Rnd(datsize, int64(sect.Align))
-		for _, symnro := range ReadOnly {
-			symn := RelROMap[symnro]
+		for _, symnro := range readOnly {
+			symn := relROMap[symnro]
 			for _, s := range data[symn] {
 				datsize = aligndatsize(datsize, s)
 				if s.Outer != nil && s.Outer.Sect != nil && s.Outer.Sect != sect {

src/cmd/link/internal/ld/symkind.go

@@ -124,10 +124,10 @@ var abiSymKindToSymKind = [...]SymKind{
 	SDWARFINFO,
 }
 
-// ReadOnly are the symbol kinds that form read-only sections. In some
+// readOnly are the symbol kinds that form read-only sections. In some
 // cases, if they will require relocations, they are transformed into
-// rel-ro sections using RelROMap.
-var ReadOnly = []SymKind{
+// rel-ro sections using relROMap.
+var readOnly = []SymKind{
 	STYPE,
 	SSTRING,
 	SGOSTRING,
@@ -137,9 +137,9 @@ var ReadOnly = []SymKind{
 	SFUNCTAB,
 }
 
-// RelROMap describes the transformation of read-only symbols to rel-ro
+// relROMap describes the transformation of read-only symbols to rel-ro
 // symbols.
-var RelROMap = map[SymKind]SymKind{
+var relROMap = map[SymKind]SymKind{
 	STYPE:     STYPERELRO,
 	SSTRING:   SSTRINGRELRO,
 	SGOSTRING: SGOSTRINGRELRO,