cmd/link: remove ABI aliases

It is now gone.

Change-Id: I59f68b324af706476695de2f291dd3aa5734e192
Reviewed-on: https://go-review.googlesource.com/c/go/+/351332
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>

1 files changed, 0 insertions, 22 deletions

diff --git a/src/cmd/link/internal/loader/loader.go b/src/cmd/link/internal/loader/loader.go
index 487559829f..dcc33b966b 100644
--- a/src/cmd/link/internal/loader/loader.go
+++ b/src/cmd/link/internal/loader/loader.go
@@ -307,7 +307,6 @@ type extSymPayload struct {
 const (
 	// Loader.flags
 	FlagStrictDups = 1 << iota
-	FlagUseABIAlias
 )
 
 func NewLoader(flags uint32, elfsetstring elfsetstringFunc, reporter *ErrorReporter) *Loader {
@@ -2297,27 +2296,6 @@ func abiToVer(abi uint16, localSymVersion int) int {
 	return v
 }
 
-// ResolveABIAlias given a symbol returns the ABI alias target of that
-// symbol. If the sym in question is not an alias, the sym itself is
-// returned.
-func (l *Loader) ResolveABIAlias(s Sym) Sym {
-	if l.flags&FlagUseABIAlias == 0 {
-		return s
-	}
-	if s == 0 {
-		return 0
-	}
-	if l.SymType(s) != sym.SABIALIAS {
-		return s
-	}
-	relocs := l.Relocs(s)
-	target := relocs.At(0).Sym()
-	if l.SymType(target) == sym.SABIALIAS {
-		panic(fmt.Sprintf("ABI alias %s references another ABI alias %s", l.SymName(s), l.SymName(target)))
-	}
-	return target
-}
-
 // TopLevelSym tests a symbol (by name and kind) to determine whether
 // the symbol first class sym (participating in the link) or is an
 // anonymous aux or sub-symbol containing some sub-part or payload of