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

// This file implements API tests across platforms and should never have a build
// constraint.

package net

import (
	"os"
	"testing"
)

// The full stack test cases for IPConn have been moved to the
// following:
//	golang.org/x/net/ipv4
//	golang.org/x/net/ipv6
//	golang.org/x/net/icmp

func packetConnTestData(t *testing.T, network string) ([]byte, func()) {

package runtime_test

import (
	"math"
	. "runtime"
	"testing"
)

var dummyTimeHistogram TimeHistogram

func TestTimeHistogram(t *testing.T) {
	// We need to use a global dummy because this
	// could get stack-allocated with a non-8-byte alignment.
	// The result of this bad alignment is a segfault on
	// 32-bit platforms when calling Record.
	h := &dummyTimeHistogram

	// Record exactly one sample in each bucket.

}
*/
import "C"

// allocateStack extends the stack so that stack copying doesn't
// confuse the msan data structures.
//
//go:noinline
func allocateStack(i int) int {
	if i == 0 {
		return i
	}
	return allocateStack(i - 1)
}

// F1 marks a chunk of stack as uninitialized.
// C.f returns an uninitialized struct on the stack, so msan will mark
// the stack as uninitialized.
//
//go:noinline
func F1() uintptr {

func balancedParentheses(s string) bool {
	var stack []byte
	for _, ch := range s {
		var open byte
		switch ch {
		case '(', '[', '{':
			stack = append(stack, byte(ch))
			continue
		case ')':
			open = '('
		case ']':
			open = '['
		case '}':
			open = '{'
		default:
			continue
		}
		// closing parenthesis/bracket must have matching opening
		top := len(stack) - 1
		if top < 0 || stack[top] != open {

				}
			}
			color[a] = black
		}

		if color[a] == grey {
			stack := []*Analyzer{a}
			inCycle := map[string]bool{}
			for len(stack) > 0 {
				current := stack[len(stack)-1]
				stack = stack[:len(stack)-1]
				if color[current] == grey && !inCycle[current.Name] {
					inCycle[current.Name] = true
					stack = append(stack, current.Requires...)
				}
			}

	gs.augmentName(st.Stack)

	// Handle the goroutine state transition.
	from, to := st.Goroutine()
	if from == to {
		// Filter out no-op events.
		return
	}
	if from.Executing() && !to.Executing() {
		if to == trace.GoWaiting {
			// Goroutine started blocking.
			gs.block(ev.Time(), ev.Stack(), st.Reason, ctx)
		} else {
			gs.stop(ev.Time(), ev.Stack(), ctx)
		}
	}

		return nil, fmt.Errorf("unexpected addr2line output: %s", resp)
	}

	var stack []plugin.Frame
	for {
		frame, end := d.readFrame()
		if end {
			break
		}

		if frame != (plugin.Frame{}) {
			stack = append(stack, frame)
		}
	}
	return stack, err
}

// addrInfo returns the stack frame information for a specific program

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

package sys

import (
	"internal/goarch"
	"internal/goos"
)

// AIX requires a larger stack for syscalls.
// The race build also needs more stack. See issue 54291.
// This arithmetic must match that in cmd/internal/objabi/stack.go:stackGuardMultiplier.
const StackGuardMultiplier = 1 + goos.IsAix + isRace

// DefaultPhysPageSize is the default physical page size.

//
//go:linkname checkptrBase
func checkptrBase(p unsafe.Pointer) uintptr {
	// stack
	if gp := getg(); gp.stack.lo <= uintptr(p) && uintptr(p) < gp.stack.hi {
		// TODO(mdempsky): Walk the stack to identify the
		// specific stack frame or even stack object that p
		// points into.
		//
		// In the mean time, use "1" as a pseudo-address to
		// represent the stack. This is an invalid address on
		// all platforms, so it's guaranteed to be distinct

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

package p

func f() { // ERROR ""
	n, m := 100, 200
	_ = make([]byte, 1<<17)      // ERROR "too large for stack" ""
	_ = make([]byte, 100, 1<<17) // ERROR "too large for stack" ""
	_ = make([]byte, n, 1<<17)   // ERROR "too large for stack" ""

	_ = make([]byte, n)      // ERROR "non-constant size" ""
	_ = make([]byte, 100, m) // ERROR "non-constant size" ""