func runtime_expandFinalInlineFrame(stk []uintptr) []uintptr {
	// TODO: It would be more efficient to report only physical PCs to pprof and
	// just expand the whole stack.
	if len(stk) == 0 {
		return stk
	}
	pc := stk[len(stk)-1]
	tracepc := pc - 1

	f := findfunc(tracepc)
	if !f.valid() {
		// Not a Go function.
		return stk
	}

	u, uf := newInlineUnwinder(f, tracepc)

		})
	}
}

// May run with m.p==nil, so write barriers are not allowed.
//
//go:nowritebarrier
func newosproc(mp *m) {
	stk := unsafe.Pointer(mp.g0.stack.hi)
	if false {
		print("newosproc stk=", stk, " m=", mp, " g=", mp.g0, " id=", mp.id, " ostk=", &mp, "\n")
	}

	var uc ucontextt
	getcontext(unsafe.Pointer(&uc))

	// _UC_SIGMASK does not seem to work here.

}

// stackfree frees an n byte stack allocation at stk.
//
// stackfree must run on the system stack because it uses per-P
// resources and must not split the stack.
//
//go:systemstack
func stackfree(stk stack) {
	gp := getg()
	v := unsafe.Pointer(stk.lo)
	n := stk.hi - stk.lo
	if n&(n-1) != 0 {
		throw("stack not a power of 2")
	}
	if stk.lo+n < stk.hi {
		throw("bad stack size")
	}

func (d *Decoder) autoClose(t Token) (Token, bool) {
	if d.stk == nil || d.stk.kind != stkStart {
		return nil, false
	}
	for _, s := range d.AutoClose {
		if strings.EqualFold(s, d.stk.name.Local) {
			// This one should be auto closed if t doesn't close it.
			et, ok := t.(EndElement)
			if !ok || !strings.EqualFold(et.Name.Local, d.stk.name.Local) {
				return EndElement{d.stk.name}, true
			}
			break
		}
	}

	stk := []byte{}
	end = i
Path:
	for ; i < len(s); i++ {
		if isPunct(s[i]) {
			continue
		}
		if !isPath(s[i]) {
			break
		}
		switch s[i] {
		case '(':
			stk = append(stk, ')')
		case '{':
			stk = append(stk, '}')
		case '[':
			stk = append(stk, ']')
		case ')', '}', ']':
			if len(stk) == 0 || stk[len(stk)-1] != s[i] {

//go:nowritebarrier
func newosproc(mp *m) {
	stk := unsafe.Pointer(mp.g0.stack.hi)
	if false {
		print("newosproc stk=", stk, " m=", mp, " g=", mp.g0, " thr_start=", abi.FuncPCABI0(thr_start), " id=", mp.id, " ostk=", &mp, "\n")
	}

	param := thrparam{
		start_func: abi.FuncPCABI0(thr_start),
		arg:        unsafe.Pointer(mp),
		stack_base: mp.g0.stack.lo,
		stack_size: uintptr(stk) - mp.g0.stack.lo,

					}
				}
				stks = append(stks, have)
				for i, stk := range acceptStacks {
					if slices.Equal(have, stk) {
						values[i][0] += s.Value[0]
						values[i][1] += s.Value[1]
					}
				}
			}
			for i, stk := range acceptStacks {
				n += values[i][0]
				value += values[i][1]
				t.Logf("stack %v has samples totaling n=%d value=%d", stk, values[i][0], values[i][1])
			}

}

func goenvs() {
	goenvs_unix()
}

// May run with m.p==nil, so write barriers are not allowed.
//
//go:nowritebarrierrec
func newosproc(mp *m) {
	stk := unsafe.Pointer(mp.g0.stack.hi)
	if false {
		print("newosproc stk=", stk, " m=", mp, " g=", mp.g0, " id=", mp.id, " ostk=", &mp, "\n")
	}

	// Initialize an attribute object.
	var attr pthreadattr
	var err int32
	err = pthread_attr_init(&attr)

		// vet expects to be able to import "fmt".
		var stk load.ImportStack
		stk.Push("vet")
		p1, err := load.LoadImportWithFlags("fmt", p.Dir, p, &stk, nil, 0)
		if err != nil {
			base.Fatalf("unexpected error loading fmt package from package %s: %v", p.ImportPath, err)
		}
		stk.Pop()
		aFmt := b.CompileAction(ModeBuild, depMode, p1)

		var deps []*Action

)

//go:noescape
func clone(flags int32, stk, mp, gp, fn unsafe.Pointer) int32

// May run with m.p==nil, so write barriers are not allowed.
//
//go:nowritebarrier
func newosproc(mp *m) {
	stk := unsafe.Pointer(mp.g0.stack.hi)
	/*
	 * note: strace gets confused if we use CLONE_PTRACE here.
	 */
	if false {