_, _, errno := syscall.Syscall6(syscall.SYS_MMAP,
			base+off, 65536, syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_SHARED|syscall.MAP_FIXED, tmp.Fd(), 0)
		if errno != 0 {
			t.Skipf("could not map a page at requested 0x%x: %s", base+off, errno)
		}
		defer syscall.Syscall(syscall.SYS_MUNMAP, base+off, 65536, 0)
	}

	s := unsafe.Slice((*byte)(unsafe.Pointer(base)), 3<<30)
	n := copy(s[1:], s)
	if n != 3<<30-1 {

	"stack",   // stack ID
	"value",   // uint64
	"task",    // trace.TaskID
}

// Names is a helper that produces a mapping of event names to event types.
func Names(specs []Spec) map[string]Type {
	nameToType := make(map[string]Type)
	for i, spec := range specs {
		nameToType[spec.Name] = Type(byte(i))
	}
	return nameToType
}

// Experiment is an experiment ID that events may be associated with.

// license that can be found in the LICENSE file.

// Issue 62430: a program that uses plugins may appear
// to have no references to an initialized global map variable defined
// in some stdlib package (ex: unicode), however there
// may be references to that map var from a plugin that
// gets loaded.

package main

import (
	"fmt"
	"plugin"
	"unicode"
)

func main() {

// MethodSet(T) is called so that repeat queries are fast.
// The zero value is a ready-to-use cache instance.
type MethodSetCache struct {
	mu     sync.Mutex
	named  map[*types.Named]struct{ value, pointer *types.MethodSet } // method sets for named N and *N
	others map[types.Type]*types.MethodSet                            // all other types
}

// MethodSet returns the method set of type T.  It is thread-safe.
//

	for s.tok != _EOF {
		s.next()
	}
}

// CommentMap collects all comments in the given src with comment text
// that matches the supplied regular expression rx and returns them as
// []Error lists in a map indexed by line number. The comment text is
// the comment with any comment markers ("//", "/*", or "*/") stripped.
// The position for each Error is the position of the token immediately

		log.Fatal(err)
	}
	if err := ctx.runTestProg("./testprog/annotations-stress.go"); err != nil {
		log.Fatal(err)
	}
}

type context struct {
	testNames map[string]struct{}
	filter    *regexp.Regexp
}

func newContext() (*context, error) {
	var filter *regexp.Regexp
	var err error
	if pattern := os.Getenv("GOTRACETEST"); pattern != "" {

//
// For example, given:
//
//	func f[A, B any]() {
//		type T int
//		f[T, map[A]B]()
//	}
//
// we construct vertices representing types A, B, and T. Because of
// declaration "type T int", we construct edges T<-A and T<-B with
// weight 1; and because of instantiation "f[T, map[A]B]" we construct
// edges A<-T with weight 0, and B<-A and B<-B with weight 1.
//

	dup("interface{comparable}"),
	// TODO(gri) adjust test for EvalCompositeTest
	// {"comparable", "interface{comparable}"},
	// {"error", "interface{Error() string}"},

	// maps
	dup("map[string]int"),
	{"map[struct{x, y int}][]byte", "map[struct{x int; y int}][]byte"},

	// channels
	dup("chan<- chan int"),
	dup("chan<- <-chan int"),
	dup("<-chan <-chan int"),
	dup("chan (<-chan int)"),
	dup("chan<- func()"),

	chans []chan<- Result
}

// Group represents a class of work and forms a namespace in
// which units of work can be executed with duplicate suppression.
type Group struct {
	mu sync.Mutex       // protects m
	m  map[string]*call // lazily initialized
}

// Result holds the results of Do, so they can be passed
// on a channel.
type Result struct {
	Val    any
	Err    error
	Shared bool
}

type routingIndex struct {
	// map from a particular segment position and value to all registered patterns
	// with that value in that position.
	// For example, the key {1, "b"} would hold the patterns "/a/b" and "/a/b/c"
	// but not "/a", "b/a", "/a/c" or "/a/{x}".
	segments map[routingIndexKey][]*pattern
	// All patterns that end in a multi wildcard (including trailing slash).