Use mod vendor for vendored directory (backwards compatible)

1 files changed, 0 insertions, 606 deletions

diff --git a/vendor/github.com/google/gops/internal/obj/objfile.go b/vendor/github.com/google/gops/internal/obj/objfile.go
deleted file mode 100644
index 8a897f09..00000000
--- a/vendor/github.com/google/gops/internal/obj/objfile.go
+++ /dev/null
@@ -1,606 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Writing of Go object files.
-//
-// Originally, Go object files were Plan 9 object files, but no longer.
-// Now they are more like standard object files, in that each symbol is defined
-// by an associated memory image (bytes) and a list of relocations to apply
-// during linking. We do not (yet?) use a standard file format, however.
-// For now, the format is chosen to be as simple as possible to read and write.
-// It may change for reasons of efficiency, or we may even switch to a
-// standard file format if there are compelling benefits to doing so.
-// See golang.org/s/go13linker for more background.
-//
-// The file format is:
-//
-//	- magic header: "\x00\x00go17ld"
-//	- byte 1 - version number
-//	- sequence of strings giving dependencies (imported packages)
-//	- empty string (marks end of sequence)
-//	- sequence of symbol references used by the defined symbols
-//	- byte 0xff (marks end of sequence)
-//	- sequence of integer lengths:
-//		- total data length
-//		- total number of relocations
-//		- total number of pcdata
-//		- total number of automatics
-//		- total number of funcdata
-//		- total number of files
-//	- data, the content of the defined symbols
-//	- sequence of defined symbols
-//	- byte 0xff (marks end of sequence)
-//	- magic footer: "\xff\xffgo17ld"
-//
-// All integers are stored in a zigzag varint format.
-// See golang.org/s/go12symtab for a definition.
-//
-// Data blocks and strings are both stored as an integer
-// followed by that many bytes.
-//
-// A symbol reference is a string name followed by a version.
-//
-// A symbol points to other symbols using an index into the symbol
-// reference sequence. Index 0 corresponds to a nil LSym* pointer.
-// In the symbol layout described below "symref index" stands for this
-// index.
-//
-// Each symbol is laid out as the following fields (taken from LSym*):
-//
-//	- byte 0xfe (sanity check for synchronization)
-//	- type [int]
-//	- name & version [symref index]
-//	- flags [int]
-//		1<<0 dupok
-//		1<<1 local
-//		1<<2 add to typelink table
-//	- size [int]
-//	- gotype [symref index]
-//	- p [data block]
-//	- nr [int]
-//	- r [nr relocations, sorted by off]
-//
-// If type == STEXT, there are a few more fields:
-//
-//	- args [int]
-//	- locals [int]
-//	- nosplit [int]
-//	- flags [int]
-//		1<<0 leaf
-//		1<<1 C function
-//		1<<2 function may call reflect.Type.Method
-//	- nlocal [int]
-//	- local [nlocal automatics]
-//	- pcln [pcln table]
-//
-// Each relocation has the encoding:
-//
-//	- off [int]
-//	- siz [int]
-//	- type [int]
-//	- add [int]
-//	- sym [symref index]
-//
-// Each local has the encoding:
-//
-//	- asym [symref index]
-//	- offset [int]
-//	- type [int]
-//	- gotype [symref index]
-//
-// The pcln table has the encoding:
-//
-//	- pcsp [data block]
-//	- pcfile [data block]
-//	- pcline [data block]
-//	- npcdata [int]
-//	- pcdata [npcdata data blocks]
-//	- nfuncdata [int]
-//	- funcdata [nfuncdata symref index]
-//	- funcdatasym [nfuncdata ints]
-//	- nfile [int]
-//	- file [nfile symref index]
-//
-// The file layout and meaning of type integers are architecture-independent.
-//
-// TODO(rsc): The file format is good for a first pass but needs work.
-//	- There are SymID in the object file that should really just be strings.
-
-package obj
-
-import (
-	"bufio"
-	"fmt"
-	"log"
-	"path/filepath"
-	"sort"
-
-	"github.com/google/gops/internal/dwarf"
-	"github.com/google/gops/internal/sys"
-)
-
-// The Go and C compilers, and the assembler, call writeobj to write
-// out a Go object file. The linker does not call this; the linker
-// does not write out object files.
-func Writeobjdirect(ctxt *Link, b *bufio.Writer) {
-	Flushplist(ctxt)
-	WriteObjFile(ctxt, b)
-}
-
-// objWriter writes Go object files.
-type objWriter struct {
-	wr   *bufio.Writer
-	ctxt *Link
-	// Temporary buffer for zigzag int writing.
-	varintbuf [10]uint8
-
-	// Provide the the index of a symbol reference by symbol name.
-	// One map for versioned symbols and one for unversioned symbols.
-	// Used for deduplicating the symbol reference list.
-	refIdx  map[string]int
-	vrefIdx map[string]int
-
-	// Number of objects written of each type.
-	nRefs     int
-	nData     int
-	nReloc    int
-	nPcdata   int
-	nAutom    int
-	nFuncdata int
-	nFile     int
-}
-
-func (w *objWriter) addLengths(s *LSym) {
-	w.nData += len(s.P)
-	w.nReloc += len(s.R)
-
-	if s.Type != STEXT {
-		return
-	}
-
-	pc := s.Pcln
-
-	data := 0
-	data += len(pc.Pcsp.P)
-	data += len(pc.Pcfile.P)
-	data += len(pc.Pcline.P)
-	for i := 0; i < len(pc.Pcdata); i++ {
-		data += len(pc.Pcdata[i].P)
-	}
-
-	w.nData += data
-	w.nPcdata += len(pc.Pcdata)
-
-	autom := 0
-	for a := s.Autom; a != nil; a = a.Link {
-		autom++
-	}
-	w.nAutom += autom
-	w.nFuncdata += len(pc.Funcdataoff)
-	w.nFile += len(pc.File)
-}
-
-func (w *objWriter) writeLengths() {
-	w.writeInt(int64(w.nData))
-	w.writeInt(int64(w.nReloc))
-	w.writeInt(int64(w.nPcdata))
-	w.writeInt(int64(w.nAutom))
-	w.writeInt(int64(w.nFuncdata))
-	w.writeInt(int64(w.nFile))
-}
-
-func newObjWriter(ctxt *Link, b *bufio.Writer) *objWriter {
-	return &objWriter{
-		ctxt:    ctxt,
-		wr:      b,
-		vrefIdx: make(map[string]int),
-		refIdx:  make(map[string]int),
-	}
-}
-
-func WriteObjFile(ctxt *Link, b *bufio.Writer) {
-	w := newObjWriter(ctxt, b)
-
-	// Magic header
-	w.wr.WriteString("\x00\x00go17ld")
-
-	// Version
-	w.wr.WriteByte(1)
-
-	// Autolib
-	for _, pkg := range ctxt.Imports {
-		w.writeString(pkg)
-	}
-	w.writeString("")
-
-	// Symbol references
-	for _, s := range ctxt.Text {
-		w.writeRefs(s)
-		w.addLengths(s)
-	}
-	for _, s := range ctxt.Data {
-		w.writeRefs(s)
-		w.addLengths(s)
-	}
-	// End symbol references
-	w.wr.WriteByte(0xff)
-
-	// Lengths
-	w.writeLengths()
-
-	// Data block
-	for _, s := range ctxt.Text {
-		w.wr.Write(s.P)
-		pc := s.Pcln
-		w.wr.Write(pc.Pcsp.P)
-		w.wr.Write(pc.Pcfile.P)
-		w.wr.Write(pc.Pcline.P)
-		for i := 0; i < len(pc.Pcdata); i++ {
-			w.wr.Write(pc.Pcdata[i].P)
-		}
-	}
-	for _, s := range ctxt.Data {
-		w.wr.Write(s.P)
-	}
-
-	// Symbols
-	for _, s := range ctxt.Text {
-		w.writeSym(s)
-	}
-	for _, s := range ctxt.Data {
-		w.writeSym(s)
-	}
-
-	// Magic footer
-	w.wr.WriteString("\xff\xffgo17ld")
-}
-
-// Symbols are prefixed so their content doesn't get confused with the magic footer.
-const symPrefix = 0xfe
-
-func (w *objWriter) writeRef(s *LSym, isPath bool) {
-	if s == nil || s.RefIdx != 0 {
-		return
-	}
-	var m map[string]int
-	switch s.Version {
-	case 0:
-		m = w.refIdx
-	case 1:
-		m = w.vrefIdx
-	default:
-		log.Fatalf("%s: invalid version number %d", s.Name, s.Version)
-	}
-
-	idx := m[s.Name]
-	if idx != 0 {
-		s.RefIdx = idx
-		return
-	}
-	w.wr.WriteByte(symPrefix)
-	if isPath {
-		w.writeString(filepath.ToSlash(s.Name))
-	} else {
-		w.writeString(s.Name)
-	}
-	w.writeInt(int64(s.Version))
-	w.nRefs++
-	s.RefIdx = w.nRefs
-	m[s.Name] = w.nRefs
-}
-
-func (w *objWriter) writeRefs(s *LSym) {
-	w.writeRef(s, false)
-	w.writeRef(s.Gotype, false)
-	for i := range s.R {
-		w.writeRef(s.R[i].Sym, false)
-	}
-
-	if s.Type == STEXT {
-		for a := s.Autom; a != nil; a = a.Link {
-			w.writeRef(a.Asym, false)
-			w.writeRef(a.Gotype, false)
-		}
-		pc := s.Pcln
-		for _, d := range pc.Funcdata {
-			w.writeRef(d, false)
-		}
-		for _, f := range pc.File {
-			w.writeRef(f, true)
-		}
-	}
-}
-
-func (w *objWriter) writeSymDebug(s *LSym) {
-	ctxt := w.ctxt
-	fmt.Fprintf(ctxt.Bso, "%s ", s.Name)
-	if s.Version != 0 {
-		fmt.Fprintf(ctxt.Bso, "v=%d ", s.Version)
-	}
-	if s.Type != 0 {
-		fmt.Fprintf(ctxt.Bso, "t=%d ", s.Type)
-	}
-	if s.DuplicateOK() {
-		fmt.Fprintf(ctxt.Bso, "dupok ")
-	}
-	if s.CFunc() {
-		fmt.Fprintf(ctxt.Bso, "cfunc ")
-	}
-	if s.NoSplit() {
-		fmt.Fprintf(ctxt.Bso, "nosplit ")
-	}
-	fmt.Fprintf(ctxt.Bso, "size=%d", s.Size)
-	if s.Type == STEXT {
-		fmt.Fprintf(ctxt.Bso, " args=%#x locals=%#x", uint64(s.Args), uint64(s.Locals))
-		if s.Leaf() {
-			fmt.Fprintf(ctxt.Bso, " leaf")
-		}
-	}
-
-	fmt.Fprintf(ctxt.Bso, "\n")
-	for p := s.Text; p != nil; p = p.Link {
-		fmt.Fprintf(ctxt.Bso, "\t%#04x %v\n", uint(int(p.Pc)), p)
-	}
-	var c int
-	var j int
-	for i := 0; i < len(s.P); {
-		fmt.Fprintf(ctxt.Bso, "\t%#04x", uint(i))
-		for j = i; j < i+16 && j < len(s.P); j++ {
-			fmt.Fprintf(ctxt.Bso, " %02x", s.P[j])
-		}
-		for ; j < i+16; j++ {
-			fmt.Fprintf(ctxt.Bso, "   ")
-		}
-		fmt.Fprintf(ctxt.Bso, "  ")
-		for j = i; j < i+16 && j < len(s.P); j++ {
-			c = int(s.P[j])
-			if ' ' <= c && c <= 0x7e {
-				fmt.Fprintf(ctxt.Bso, "%c", c)
-			} else {
-				fmt.Fprintf(ctxt.Bso, ".")
-			}
-		}
-
-		fmt.Fprintf(ctxt.Bso, "\n")
-		i += 16
-	}
-
-	sort.Sort(relocByOff(s.R)) // generate stable output
-	for _, r := range s.R {
-		name := ""
-		if r.Sym != nil {
-			name = r.Sym.Name
-		} else if r.Type == R_TLS_LE {
-			name = "TLS"
-		}
-		if ctxt.Arch.InFamily(sys.ARM, sys.PPC64) {
-			fmt.Fprintf(ctxt.Bso, "\trel %d+%d t=%d %s+%x\n", int(r.Off), r.Siz, r.Type, name, uint64(r.Add))
-		} else {
-			fmt.Fprintf(ctxt.Bso, "\trel %d+%d t=%d %s+%d\n", int(r.Off), r.Siz, r.Type, name, r.Add)
-		}
-	}
-}
-
-func (w *objWriter) writeSym(s *LSym) {
-	ctxt := w.ctxt
-	if ctxt.Debugasm != 0 {
-		w.writeSymDebug(s)
-	}
-
-	w.wr.WriteByte(symPrefix)
-	w.writeInt(int64(s.Type))
-	w.writeRefIndex(s)
-	flags := int64(0)
-	if s.DuplicateOK() {
-		flags |= 1
-	}
-	if s.Local() {
-		flags |= 1 << 1
-	}
-	if s.MakeTypelink() {
-		flags |= 1 << 2
-	}
-	w.writeInt(flags)
-	w.writeInt(s.Size)
-	w.writeRefIndex(s.Gotype)
-	w.writeInt(int64(len(s.P)))
-
-	w.writeInt(int64(len(s.R)))
-	var r *Reloc
-	for i := 0; i < len(s.R); i++ {
-		r = &s.R[i]
-		w.writeInt(int64(r.Off))
-		w.writeInt(int64(r.Siz))
-		w.writeInt(int64(r.Type))
-		w.writeInt(r.Add)
-		w.writeRefIndex(r.Sym)
-	}
-
-	if s.Type != STEXT {
-		return
-	}
-
-	w.writeInt(int64(s.Args))
-	w.writeInt(int64(s.Locals))
-	if s.NoSplit() {
-		w.writeInt(1)
-	} else {
-		w.writeInt(0)
-	}
-	flags = int64(0)
-	if s.Leaf() {
-		flags |= 1
-	}
-	if s.CFunc() {
-		flags |= 1 << 1
-	}
-	if s.ReflectMethod() {
-		flags |= 1 << 2
-	}
-	w.writeInt(flags)
-	n := 0
-	for a := s.Autom; a != nil; a = a.Link {
-		n++
-	}
-	w.writeInt(int64(n))
-	for a := s.Autom; a != nil; a = a.Link {
-		w.writeRefIndex(a.Asym)
-		w.writeInt(int64(a.Aoffset))
-		if a.Name == NAME_AUTO {
-			w.writeInt(A_AUTO)
-		} else if a.Name == NAME_PARAM {
-			w.writeInt(A_PARAM)
-		} else {
-			log.Fatalf("%s: invalid local variable type %d", s.Name, a.Name)
-		}
-		w.writeRefIndex(a.Gotype)
-	}
-
-	pc := s.Pcln
-	w.writeInt(int64(len(pc.Pcsp.P)))
-	w.writeInt(int64(len(pc.Pcfile.P)))
-	w.writeInt(int64(len(pc.Pcline.P)))
-	w.writeInt(int64(len(pc.Pcdata)))
-	for i := 0; i < len(pc.Pcdata); i++ {
-		w.writeInt(int64(len(pc.Pcdata[i].P)))
-	}
-	w.writeInt(int64(len(pc.Funcdataoff)))
-	for i := 0; i < len(pc.Funcdataoff); i++ {
-		w.writeRefIndex(pc.Funcdata[i])
-	}
-	for i := 0; i < len(pc.Funcdataoff); i++ {
-		w.writeInt(pc.Funcdataoff[i])
-	}
-	w.writeInt(int64(len(pc.File)))
-	for _, f := range pc.File {
-		w.writeRefIndex(f)
-	}
-}
-
-func (w *objWriter) writeInt(sval int64) {
-	var v uint64
-	uv := (uint64(sval) << 1) ^ uint64(sval>>63)
-	p := w.varintbuf[:]
-	for v = uv; v >= 0x80; v >>= 7 {
-		p[0] = uint8(v | 0x80)
-		p = p[1:]
-	}
-	p[0] = uint8(v)
-	p = p[1:]
-	w.wr.Write(w.varintbuf[:len(w.varintbuf)-len(p)])
-}
-
-func (w *objWriter) writeString(s string) {
-	w.writeInt(int64(len(s)))
-	w.wr.WriteString(s)
-}
-
-func (w *objWriter) writeRefIndex(s *LSym) {
-	if s == nil {
-		w.writeInt(0)
-		return
-	}
-	if s.RefIdx == 0 {
-		log.Fatalln("writing an unreferenced symbol", s.Name)
-	}
-	w.writeInt(int64(s.RefIdx))
-}
-
-// relocByOff sorts relocations by their offsets.
-type relocByOff []Reloc
-
-func (x relocByOff) Len() int           { return len(x) }
-func (x relocByOff) Less(i, j int) bool { return x[i].Off < x[j].Off }
-func (x relocByOff) Swap(i, j int)      { x[i], x[j] = x[j], x[i] }
-
-// implement dwarf.Context
-type dwCtxt struct{ *Link }
-
-func (c dwCtxt) PtrSize() int {
-	return c.Arch.PtrSize
-}
-func (c dwCtxt) AddInt(s dwarf.Sym, size int, i int64) {
-	ls := s.(*LSym)
-	ls.WriteInt(c.Link, ls.Size, size, i)
-}
-func (c dwCtxt) AddBytes(s dwarf.Sym, b []byte) {
-	ls := s.(*LSym)
-	ls.WriteBytes(c.Link, ls.Size, b)
-}
-func (c dwCtxt) AddString(s dwarf.Sym, v string) {
-	ls := s.(*LSym)
-	ls.WriteString(c.Link, ls.Size, len(v), v)
-	ls.WriteInt(c.Link, ls.Size, 1, 0)
-}
-func (c dwCtxt) SymValue(s dwarf.Sym) int64 {
-	return 0
-}
-func (c dwCtxt) AddAddress(s dwarf.Sym, data interface{}, value int64) {
-	rsym := data.(*LSym)
-	ls := s.(*LSym)
-	size := c.PtrSize()
-	ls.WriteAddr(c.Link, ls.Size, size, rsym, value)
-}
-func (c dwCtxt) AddSectionOffset(s dwarf.Sym, size int, t interface{}, ofs int64) {
-	ls := s.(*LSym)
-	rsym := t.(*LSym)
-	ls.WriteAddr(c.Link, ls.Size, size, rsym, ofs)
-	r := &ls.R[len(ls.R)-1]
-	r.Type = R_DWARFREF
-}
-
-func gendwarf(ctxt *Link, text []*LSym) []*LSym {
-	dctxt := dwCtxt{ctxt}
-	var dw []*LSym
-
-	for _, s := range text {
-		dsym := Linklookup(ctxt, dwarf.InfoPrefix+s.Name, int(s.Version))
-		if dsym.Size != 0 {
-			continue
-		}
-		dw = append(dw, dsym)
-		dsym.Type = SDWARFINFO
-		dsym.Set(AttrDuplicateOK, s.DuplicateOK())
-		var vars dwarf.Var
-		var abbrev int
-		var offs int32
-		for a := s.Autom; a != nil; a = a.Link {
-			switch a.Name {
-			case NAME_AUTO:
-				abbrev = dwarf.DW_ABRV_AUTO
-				offs = a.Aoffset
-				if ctxt.FixedFrameSize() == 0 {
-					offs -= int32(ctxt.Arch.PtrSize)
-				}
-				if Framepointer_enabled(GOOS, GOARCH) {
-					offs -= int32(ctxt.Arch.PtrSize)
-				}
-
-			case NAME_PARAM:
-				abbrev = dwarf.DW_ABRV_PARAM
-				offs = a.Aoffset + int32(ctxt.FixedFrameSize())
-
-			default:
-				continue
-			}
-			typename := dwarf.InfoPrefix + a.Gotype.Name[len("type."):]
-			dwvar := &dwarf.Var{
-				Name:   a.Asym.Name,
-				Abbrev: abbrev,
-				Offset: int32(offs),
-				Type:   Linklookup(ctxt, typename, 0),
-			}
-			dws := &vars.Link
-			for ; *dws != nil; dws = &(*dws).Link {
-				if offs <= (*dws).Offset {
-					break
-				}
-			}
-			dwvar.Link = *dws
-			*dws = dwvar
-		}
-		dwarf.PutFunc(dctxt, dsym, s.Name, s.Version == 0, s, s.Size, vars.Link)
-	}
-	return dw
-}