{"kern.mbstat", []_C_int{1, 59}},
	{"kern.msgbuf", []_C_int{1, 48}},
	{"kern.msgbufsize", []_C_int{1, 38}},
	{"kern.nchstats", []_C_int{1, 41}},
	{"kern.netlivelocks", []_C_int{1, 76}},
	{"kern.nfiles", []_C_int{1, 56}},
	{"kern.ngroups", []_C_int{1, 18}},
	{"kern.nosuidcoredump", []_C_int{1, 32}},
	{"kern.nprocs", []_C_int{1, 47}},
	{"kern.nselcoll", []_C_int{1, 43}},
	{"kern.nthreads", []_C_int{1, 26}},

	{"kern.mbstat", []_C_int{1, 59}},
	{"kern.msgbuf", []_C_int{1, 48}},
	{"kern.msgbufsize", []_C_int{1, 38}},
	{"kern.nchstats", []_C_int{1, 41}},
	{"kern.netlivelocks", []_C_int{1, 76}},
	{"kern.nfiles", []_C_int{1, 56}},
	{"kern.ngroups", []_C_int{1, 18}},
	{"kern.nosuidcoredump", []_C_int{1, 32}},
	{"kern.nprocs", []_C_int{1, 47}},
	{"kern.nthreads", []_C_int{1, 26}},
	{"kern.numvnodes", []_C_int{1, 58}},

	{"kern.mbstat", []_C_int{1, 59}},
	{"kern.msgbuf", []_C_int{1, 48}},
	{"kern.msgbufsize", []_C_int{1, 38}},
	{"kern.nchstats", []_C_int{1, 41}},
	{"kern.netlivelocks", []_C_int{1, 76}},
	{"kern.nfiles", []_C_int{1, 56}},
	{"kern.ngroups", []_C_int{1, 18}},
	{"kern.nosuidcoredump", []_C_int{1, 32}},
	{"kern.nprocs", []_C_int{1, 47}},
	{"kern.nthreads", []_C_int{1, 26}},
	{"kern.numvnodes", []_C_int{1, 58}},

	}
	return nil
}

func (tools gccgoToolchain) asm(b *Builder, a *Action, sfiles []string) ([]string, error) {
	p := a.Package
	var ofiles []string
	for _, sfile := range sfiles {
		base := filepath.Base(sfile)
		ofile := a.Objdir + base[:len(base)-len(".s")] + ".o"
		ofiles = append(ofiles, ofile)
		sfile, _ = fsys.OverlayPath(mkAbs(p.Dir, sfile))
		defs := []string{"-D", "GOOS_" + cfg.Goos, "-D", "GOARCH_" + cfg.Goarch}

}

func (gcToolchain) asm(b *Builder, a *Action, sfiles []string) ([]string, error) {
	p := a.Package
	args := asmArgs(a, p)

	var ofiles []string
	for _, sfile := range sfiles {
		overlayPath, _ := fsys.OverlayPath(mkAbs(p.Dir, sfile))
		ofile := a.Objdir + sfile[:len(sfile)-len(".s")] + ".o"
		ofiles = append(ofiles, ofile)
		args1 := append(args, "-o", ofile, overlayPath)

	}
	more = len(ci.frames) > 0
	if frame.funcInfo.valid() {
		// Compute file/line just before we need to return it,
		// as it can be expensive. This avoids computing file/line
		// for the Frame we find but don't return. See issue 32093.
		file, line := funcline1(frame.funcInfo, frame.PC, false)
		frame.File, frame.Line = file, int(line)
	}
	return
}

  public static boolean equal(File file1, File file2) throws IOException {
    checkNotNull(file1);
    checkNotNull(file2);
    if (file1 == file2 || file1.equals(file2)) {
      return true;
    }

    /*
     * Some operating systems may return zero as the length for files denoting system-dependent
     * entities such as devices or pipes, in which case we must fall back on comparing the bytes
     * directly.
     */

  public static boolean equal(File file1, File file2) throws IOException {
    checkNotNull(file1);
    checkNotNull(file2);
    if (file1 == file2 || file1.equals(file2)) {
      return true;
    }

    /*
     * Some operating systems may return zero as the length for files denoting system-dependent
     * entities such as devices or pipes, in which case we must fall back on comparing the bytes
     * directly.
     */

				return err
			}
		}
	}

	for _, file := range cfiles {
		out := file[:len(file)-len(".c")] + ".o"
		if err := BuildToolchain.cc(b, a, objdir+out, file); err != nil {
			return err
		}
		objects = append(objects, out)
	}

	// Assemble .s files.
	if len(sfiles) > 0 {
		ofiles, err := BuildToolchain.asm(b, a, sfiles)
		if err != nil {

func (e *NoGoError) Error() string {
	return "no buildable Go source files in " + e.Dir
}

// MultiplePackageError describes a directory containing
// multiple buildable Go source files for multiple packages.
type MultiplePackageError struct {
	Dir      string   // directory containing files
	Packages []string // package names found
	Files    []string // corresponding files: Files[i] declares package Packages[i]
}