p.To.Type = obj.TYPE_CONST
		p.To.Offset = -1

		pbahead := s.Prog(ppc64.ABEQ)
		pbahead.To.Type = obj.TYPE_BRANCH

		p = s.Prog(v.Op.Asm())
		p.From.Type = obj.TYPE_REG
		p.From.Reg = r1
		p.Reg = r0
		p.To.Type = obj.TYPE_REG
		p.To.Reg = r

		pbover := s.Prog(obj.AJMP)
		pbover.To.Type = obj.TYPE_BRANCH

		p = s.Prog(ppc64.ANEG)
		p.To.Type = obj.TYPE_REG
		p.To.Reg = r

				prog = appendVarint(prog, elemWords-elemPtrs-1)
			}
		}
		// Repeat length-1 times.
		if elemWords < 0x80 {
			prog = append(prog, byte(elemWords|0x80))
		} else {
			prog = append(prog, 0x80)
			prog = appendVarint(prog, elemWords)
		}
		prog = appendVarint(prog, uintptr(length)-1)
		prog = append(prog, 0)
		*(*uint32)(unsafe.Pointer(&prog[0])) = uint32(len(prog) - 4)

}

func isUnsafePoint(p *obj.Prog) bool {
	return p.Mark&USES_REG_TMP == USES_REG_TMP || p.From.Reg == REG_TMP || p.To.Reg == REG_TMP || p.Reg == REG_TMP
}

func ParseSuffix(prog *obj.Prog, cond string) (err error) {
	switch prog.As {
	case AFCVTWS, AFCVTLS, AFCVTWUS, AFCVTLUS, AFCVTWD, AFCVTLD, AFCVTWUD, AFCVTLUD:
		prog.Scond, err = rmSuffixEncode(strings.TrimPrefix(cond, "."))
	}

	lock mutex
	data *byte
}

// progToPointerMask returns the 1-bit pointer mask output by the GC program prog.
// size the size of the region described by prog, in bytes.
// The resulting bitvector will have no more than size/goarch.PtrSize bits.
func progToPointerMask(prog *byte, size uintptr) bitvector {
	n := (size/goarch.PtrSize + 7) / 8

func (c *ctxt0) isUnsafePoint(p *obj.Prog) bool {
	// If p explicitly uses REGTMP, it's unsafe to preempt, because the
	// preemption sequence clobbers REGTMP.
	return p.From.Reg == REGTMP || p.To.Reg == REGTMP || p.Reg == REGTMP
}

// isRestartable returns whether p is a multi-instruction sequence that,
// if preempted, can be restarted.
func (c *ctxt0) isRestartable(p *obj.Prog) bool {
	if c.isUnsafePoint(p) {

func (c *ctxt0) isUnsafePoint(p *obj.Prog) bool {
	// If p explicitly uses REGTMP, it's unsafe to preempt, because the
	// preemption sequence clobbers REGTMP.
	return p.From.Reg == REGTMP || p.To.Reg == REGTMP || p.Reg == REGTMP
}

// isRestartable returns whether p is a multi-instruction sequence that,
// if preempted, can be restarted.
func (c *ctxt0) isRestartable(p *obj.Prog) bool {
	if c.isUnsafePoint(p) {

	hasGoroot := false
	for _, v := range tg.env {
		if strings.HasPrefix(v, "GOROOT=") {
			hasGoroot = true
			break
		}
	}
	prog := tg.goTool()
	if !hasGoroot {
		tg.setenv("GOROOT", testGOROOT)
	}

	tg.t.Logf("running testgo %v", args)
	cmd := testenv.Command(tg.t, prog, args...)
	tg.stdout.Reset()
	tg.stderr.Reset()
	cmd.Dir = tg.execDir
	cmd.Stdout = &tg.stdout
	cmd.Stderr = &tg.stderr

		}
	}

	uuidUpdated := false
	if combineDwarf {
		// Find "dsymutils" and "strip" tools using CC --print-prog-name.
		var cc []string
		cc = append(cc, ctxt.extld()...)
		cc = append(cc, hostlinkArchArgs(ctxt.Arch)...)
		cc = append(cc, "--print-prog-name", "dsymutil")
		out, err := exec.Command(cc[0], cc[1:]...).CombinedOutput()
		if err != nil {

	off int
}

var elfstr [100]Elfstring

var nelfstr int

var buildinfo []byte

/*
Initialize the global variable that describes the ELF header. It will be updated as
we write section and prog headers.
*/
func Elfinit(ctxt *Link) {
	ctxt.IsELF = true

	if ctxt.Arch.InFamily(sys.AMD64, sys.ARM64, sys.Loong64, sys.MIPS64, sys.PPC64, sys.RISCV64, sys.S390X) {
		elfRelType = ".rela"
	} else {

 * See section 6.2.5
 */
const (
	LINE_BASE   = -4
	LINE_RANGE  = 10
	PC_RANGE    = (255 - OPCODE_BASE) / LINE_RANGE
	OPCODE_BASE = 11
)

/*
 * Walk prog table, emit line program and build DIE tree.
 */

func getCompilationDir() string {
	// OSX requires this be set to something, but it's not easy to choose