package sym

import "cmd/internal/goobj"

type Library struct {
	Objref      string
	Srcref      string
	File        string
	Pkg         string
	Shlib       string
	Fingerprint goobj.FingerprintType
	Autolib     []goobj.ImportedPkg
	Imports     []*Library
	Main        bool
	Units       []*CompilationUnit

	Textp       []LoaderSym // text syms defined in this library

package obj

import (
	"cmd/internal/goobj"
	"cmd/internal/src"
)

// AddImport adds a package to the list of imported packages.
func (ctxt *Link) AddImport(pkg string, fingerprint goobj.FingerprintType) {
	ctxt.Imports = append(ctxt.Imports, goobj.ImportedPkg{Pkg: pkg, Fingerprint: fingerprint})
}

// getFileIndexAndLine returns the relative file index (local to the CU), and

            FileType fingerprintType = currentFingerprint.getType();

            if (previousFilesForFingerprint.isEmpty()) {
                results.put(currentFingerprint.getNormalizedPath(), new FilePathWithType(absolutePath, fingerprintType));
            } else {
                previousFilesForFingerprint.remove(0);
            }
        }

// Currently a symbol's Gotype, FuncInfo, and associated DWARF symbols
// are auxiliary symbols.

const stringRefSize = 8 // two uint32s

type FingerprintType [8]byte

func (fp FingerprintType) IsZero() bool { return fp == FingerprintType{} }

// Package Index.
const (
	PkgIdxNone     = (1<<31 - 1) - iota // Non-package symbols

			if _, err := os.Stat(pname); err == nil {
				break
			}
		}
		pname = filepath.Clean(pname)
	}

	return pname, isshlib
}

func addlib(ctxt *Link, src, obj, lib string, fingerprint goobj.FingerprintType) *sym.Library {
	pkg := pkgname(ctxt, lib)

	// already loaded?
	if l := ctxt.LibraryByPkg[pkg]; l != nil && !l.Fingerprint.IsZero() {
		// Normally, packages are loaded in dependency order, and if l != nil

		ctxt.Logf("HEADER = -H%d -T0x%x -R0x%x\n", ctxt.HeadType, uint64(*FlagTextAddr), uint32(*FlagRound))
	}

	zerofp := goobj.FingerprintType{}
	switch ctxt.BuildMode {
	case BuildModeShared:
		for i := 0; i < flag.NArg(); i++ {
			arg := flag.Arg(i)
			parts := strings.SplitN(arg, "=", 2)
			var pkgpath, file string
			if len(parts) == 1 {

	f.MustSeek(h.off, 0)
	h.ld(ctxt, f, h.pkg, h.length, h.pn)
	if *flagCaptureHostObjs != "" {
		captureHostObj(h)
	}
}

func checkFingerprint(lib *sym.Library, libfp goobj.FingerprintType, src string, srcfp goobj.FingerprintType) {
	if libfp != srcfp {
		Exitf("fingerprint mismatch: %s has %x, import from %s expecting %x", lib, libfp, src, srcfp)
	}
}

	nonpkgdefs   []*LSym // list of defined non-package symbols
	nonpkgrefs   []*LSym // list of referenced non-package symbols

	Fingerprint goobj.FingerprintType // fingerprint of symbol indices, to catch index mismatch
}

func (ctxt *Link) Diag(format string, args ...interface{}) {
	ctxt.Errors++
	ctxt.DiagFunc(format, args...)
}

// Does not read symbol data.
// Returns the fingerprint of the object.
func (l *Loader) Preload(localSymVersion int, f *bio.Reader, lib *sym.Library, unit *sym.CompilationUnit, length int64) goobj.FingerprintType {
	roObject, readonly, err := f.Slice(uint64(length)) // TODO: no need to map blocks that are for tools only (e.g. RefName)
	if err != nil {
		log.Fatal("cannot read object file:", err)
	}