cmd/go: don't pass both -static and -pie to cgo compiler

Along with CL 122135,
Fixes #26197

Change-Id: I61e8cfb0dcc39885acf8ffa1ffb34cbbe4dc1dc3
Reviewed-on: https://go-review.googlesource.com/122155
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

src/cmd/go/internal/work/exec.go

@@ -2473,7 +2473,15 @@ func (b *Builder) dynimport(a *Action, p *load.Package, objdir, importGo, cgoExe
 	// we need to use -pie for Linux/ARM to get accurate imported sym
 	ldflags := cgoLDFLAGS
 	if (cfg.Goarch == "arm" && cfg.Goos == "linux") || cfg.Goos == "android" {
-		ldflags = append(ldflags, "-pie")
+		// -static -pie doesn't make sense, and causes link errors.
+		// Issue 26197.
+		n := make([]string, 0, len(ldflags))
+		for _, flag := range ldflags {
+			if flag != "-static" {
+				n = append(n, flag)
+			}
+		}
+		ldflags = append(n, "-pie")
 	}
 	if err := b.gccld(p, objdir, dynobj, ldflags, linkobj); err != nil {
 		return err