if p.UsesCgo() || p.UsesSwig() {
		if pcCFLAGS, pcLDFLAGS, err = b.getPkgConfigFlags(a); err != nil {
			return
		}
	}

	// Compute overlays for .c/.cc/.h/etc. and if there are any overlays
	// put correct contents of all those files in the objdir, to ensure
	// the correct headers are included. nonGoOverlay is the overlay that
	// points from nongo files to the copied files in objdir.

		if off == 2*c.PtrSize {
			return int32(types.TypeHash(ti.Type.(*types.Type)))
		}
	}
	base.Fatalf("fixed32 data not known for %s:%d", sym, off)
	return 0
}

// isFixedSym returns true if the contents of sym at the given offset
// is known and is the constant address of another symbol.
func isFixedSym(sym Sym, off int64) bool {
	lsym := sym.(*obj.LSym)
	switch {
	case lsym.Type == objabi.SRODATA:

	ctxt.tramps = append(ctxt.tramps, s.Sym())
	if *FlagDebugTramp > 0 && ctxt.Debugvlog > 0 {
		ctxt.Logf("trampoline %s inserted\n", s.Name())
	}
}

// compressSyms compresses syms and returns the contents of the
// compressed section. If the section would get larger, it returns nil.
func compressSyms(ctxt *Link, syms []loader.Sym) []byte {
	ldr := ctxt.loader
	var total int64
	for _, sym := range syms {