}
		need &^= needCompiledGoFiles
	}
	if need == 0 {
		// Nothing left to do.
		return nil
	}

	// Collect symbol ABI requirements from assembly.
	symabis, err := BuildToolchain.symabis(b, a, sfiles)
	if err != nil {
		return err
	}

	// Prepare Go import config.
	// We start it off with a comment so it can't be empty, so icfg.Bytes() below is never nil.

	ldr.SetSymSect(ldr.LookupOrCreateSym("runtime.egcbss", 0), ldr.SymSect(s))

	ctxt.xdefine("runtime.symtab", sym.SRODATA, int64(symtab.Vaddr))
	ctxt.xdefine("runtime.esymtab", sym.SRODATA, int64(symtab.Vaddr+symtab.Length))
	ctxt.xdefine("runtime.pclntab", sym.SRODATA, int64(pclntab.Vaddr))
	ctxt.defineInternal("runtime.pcheader", sym.SRODATA)