// to manage containers. For example, they contain functions to configure containers' cgroups,
// ensure containers run with the desired QoS, and allocate compute resources like cpus, memory,
// devices...

package runtime

import (
	"runtime"

	"istio.io/istio/pkg/log"
)

// LogPanic logs the caller tree when a panic occurs.
func LogPanic(r any) {
	// Same as stdlib http server code. Manually allocate stack trace buffer size
	// to prevent excessively large logs
	const size = 64 << 10
	stacktrace := make([]byte, size)
	stacktrace = stacktrace[:runtime.Stack(stacktrace, false)]

  }];
}

def AllocateControlFuturesOp: Mlrt_Op<"allocate_control_futures", [AttrSizedResultSegments]> {
  let summary = "Allocate futures and corresponding promises";

  let description = [{
    Allocate futures and corresponding promises.

    $num: The number of futures to be allocated.

    $promises: There are $num promises, and promises[i] shares the state with futures[i].

// Malloc small size classes.
//
// See malloc.go for overview.
// See also mksizeclasses.go for how we decide what size classes to use.

package runtime

// Returns size of the memory block that mallocgc will allocate if you ask for the size,
// minus any inline space for metadata.
func roundupsize(size uintptr, noscan bool) (reqSize uintptr) {
	reqSize = size
	if reqSize <= maxSmallSize-mallocHeaderSize {
		// Small object.

	Error() string
	Type() string
}

type unexpectedAdmissionError struct{ Err error }

var _ Error = (*unexpectedAdmissionError)(nil)

func (e *unexpectedAdmissionError) Error() string {
	return fmt.Sprintf("Allocate failed due to %v, which is unexpected", e.Err)
}

func (e *unexpectedAdmissionError) Type() string {
	return ErrorReasonUnexpected
}

func GetPodAdmitResult(err error) lifecycle.PodAdmitResult {
	if err == nil {

// call on stack should not have write barrier.

package main

import (
	"reflect"
	"runtime"
	"unsafe"
)

var badPtr uintptr

var sink []byte

func init() {
	// Allocate large enough to use largeAlloc.
	b := make([]byte, 1<<16-1)
	sink = b // force heap allocation
	//  Any space between the object and the end of page is invalid to point to.
	badPtr = uintptr(unsafe.Pointer(&b[len(b)-1])) + 1

// via reflect.

package main

import (
	"io"
	"reflect"
	"runtime"
	"unsafe"
)

var badPtr uintptr

var sink []byte

func init() {
	// Allocate large enough to use largeAlloc.
	b := make([]byte, 1<<16-1)
	sink = b // force heap allocation
	//  Any space between the object and the end of page is invalid to point to.
	badPtr = uintptr(unsafe.Pointer(&b[len(b)-1])) + 1

func test21897(t *testing.T) {
	// Please write barrier, kick in soon.
	defer debug.SetGCPercent(debug.SetGCPercent(1))

	for i := 0; i < 10000; i++ {
		testCFNumberRef()
		testCFDateRef()
		testCFBooleanRef()
		// Allocate some memory, so eventually the write barrier is enabled
		// and it will see writes of bad pointers in the test* functions below.
		byteSliceSink = make([]byte, 1024)
	}
}

var byteSliceSink []byte

	*x = T{} // DUFFZERO again
}

//go:noinline
// a function with large frame
func g() {
	var x [1000]int
	_ = x
}

func main() {
	var s struct { a T; b [8192-62]int } // allocate 64K, hopefully it's in a new span and a few bytes before it is garbage
	sink = &s // force heap allocation
	s.a[0] = 2
	zero(&s.a)
	if s.a[0] != 0 {
		println("s.a[0] =", s.a[0])
		panic("zeroing failed")
	}

		{name: "E16", fn: func() { e = zero16 }}, // zero values do not allocate
		{name: "E32", fn: func() { e = zero32 }},
		{name: "E64", fn: func() { e = zero64 }},
		{name: "Estr", fn: func() { e = zerostr }},
		{name: "Eslice", fn: func() { e = zeroslice }},
		{name: "Econstflt", fn: func() { e = 99.0 }}, // constants do not allocate
		{name: "Econststr", fn: func() { e = "change" }},