if ctxt.loader.SymType(s) == sym.SDYNIMPORT {
		symData := ctxt.loader.Data(s)
		addr := decodetypeGcprogShlib(ctxt, symData)
		ptrdata := decodetypePtrdata(ctxt.Arch, symData)
		sect := findShlibSection(ctxt, ctxt.loader.SymPkg(s), addr)
		if sect != nil {
			bits := ptrdata / int64(ctxt.Arch.PtrSize)
			r := make([]byte, (bits+7)/8)
			// ldshlibsyms avoids closing the ELF file so sect.ReadAt works.

	// if non-negative, offset from argp
	off       int32
	size      int32
	_ptrdata  int32  // ptrdata, or -ptrdata is GC prog is used
	gcdataoff uint32 // offset to gcdata from moduledata.rodata
}

func (r *stackObjectRecord) useGCProg() bool {
	return r._ptrdata < 0
}

func (r *stackObjectRecord) ptrdata() uintptr {
	x := r._ptrdata
	if x < 0 {
		return uintptr(-x)
	}
	return uintptr(x)
}

		if sz != int64(int32(sz)) {
			base.Fatalf("stack object too big: %v of type %v, size %d", v, t, sz)
		}
		lsym, useGCProg, ptrdata := reflectdata.GCSym(t)
		if useGCProg {
			ptrdata = -ptrdata
		}
		off = objw.Uint32(x, off, uint32(sz))
		off = objw.Uint32(x, off, uint32(ptrdata))
		off = objw.SymPtrOff(x, off, lsym)
	}

	if base.Flag.Live != 0 {
		for _, v := range vars {

		return
	}

	f := frame.fn
	pcdata := int32(-1)
	if targetpc != f.entry() {
		// Back up to the CALL. If we're at the function entry
		// point, we want to use the entry map (-1), even if
		// the first instruction of the function changes the
		// stack map.
		targetpc--
		pcdata = pcdatavalue(f, abi.PCDATA_StackMapIndex, targetpc)
	}
	if pcdata == -1 {

		name: "ptrdata1",
		c: `#include <stdlib.h>
		    void f26(void* p) {}`,
		imports: []string{"unsafe"},
		support: `type S26 struct { p *int; a [8*8]byte; u uintptr }`,
		body:    `i := 0; p := &S26{u:uintptr(unsafe.Pointer(&i))}; q := (*S26)(C.malloc(C.size_t(unsafe.Sizeof(*p)))); *q = *p; C.f26(unsafe.Pointer(q))`,
		fail:    false,
	},
	{
		// Like ptrdata1, but with a type that uses a GC program.

		}
	}
	return l
}

//go:nosplit
func (l *dlogger) s(x string) *dlogger {
	if !dlogEnabled {
		return l
	}

	strData := unsafe.StringData(x)
	datap := &firstmoduledata
	if len(x) > 4 && datap.etext <= uintptr(unsafe.Pointer(strData)) && uintptr(unsafe.Pointer(strData)) < datap.end {
		// String constants are in the rodata section, which
		// isn't recorded in moduledata. But it has to be

	wantName   string
	wantOffset int
}{
	{
		// 2020b slim tzdata for Europe/Berlin.
		zoneName:   "Europe/Berlin",
		fileName:   "2020b_Europe_Berlin",
		date:       func(loc *time.Location) time.Time { return time.Date(2020, time.October, 29, 15, 30, 0, 0, loc) },
		wantName:   "CET",
		wantOffset: 3600,
	},
	{
		// 2021a slim tzdata for America/Nuuk.
		zoneName:   "America/Nuuk",

	var pcdata []loader.Sym
	for _, s := range funcs {
		fi := ldr.FuncInfo(s)
		if !fi.Valid() {
			continue
		}
		fi.Preload()
		pcsp, pcfile, pcline, pcinline, pcdata = ldr.PcdataAuxs(s, pcdata)

		pcSyms := []loader.Sym{pcsp, pcfile, pcline}
		for _, pcSym := range pcSyms {
			saveOffset(pcSym)
		}
		for _, pcSym := range pcdata {
			saveOffset(pcSym)
		}

// registerLoadFromEmbeddedTZData is called by the time/tzdata package,
// if it is imported.
//
//go:linkname registerLoadFromEmbeddedTZData
func registerLoadFromEmbeddedTZData(f func(string) (string, error)) {
	loadFromEmbeddedTZData = f
}

// loadFromEmbeddedTZData is used to load a specific tzdata file
// from tzdata information embedded in the binary itself.
// This is set when the time/tzdata package is imported,

    const uint8_t* const opt_data =
        reinterpret_cast<const uint8_t*>(custom_options.data());
    const size_t opt_size = custom_options.size();
    if (!flexbuffers::VerifyBuffer(opt_data, opt_size)) {
      return emitError(loc, "invalid custom options");
    }

    const flexbuffers::Vector& v =
        flexbuffers::GetRoot(opt_data, opt_size).AsVector();