switch {
		case strings.Contains(cfg.GOARM, "7"):
			args = append(args, "-D", "GOARM_7")
			fallthrough
		case strings.Contains(cfg.GOARM, "6"):
			args = append(args, "-D", "GOARM_6")
			fallthrough
		default:
			args = append(args, "-D", "GOARM_5")
		}
	}

	if cfg.Goarch == "arm64" {
		g, err := buildcfg.ParseGoarm64(cfg.GOARM64)
		if err == nil && g.LSE {

		switch {
		case strings.Contains(goarm, "7"):
			asmArgs = append(asmArgs, "-D", "GOARM_7")
			fallthrough
		case strings.Contains(goarm, "6"):
			asmArgs = append(asmArgs, "-D", "GOARM_6")
			fallthrough
		default:
			asmArgs = append(asmArgs, "-D", "GOARM_5")
		}
	}
	goasmh := pathf("%s/go_asm.h", workdir)

	// Collect symabis from assembly code.
	var symabis string