// are implemented inside of race runtime.
	kernel32 := syscall.NewLazyDLL("kernel32.dll")
	VirtualAlloc := kernel32.NewProc("VirtualAlloc")
	VirtualFree := kernel32.NewProc("VirtualFree")
	const (
		MEM_COMMIT     = 0x00001000
		MEM_RESERVE    = 0x00002000
		MEM_RELEASE    = 0x8000
		PAGE_READWRITE = 0x04
	)

	if r != 0 {
		return
	}

	// Decommit failed. Usual reason is that we've merged memory from two different
	// VirtualAlloc calls, and Windows will only let each VirtualFree handle pages from
	// a single VirtualAlloc. It is okay to specify a subset of the pages from a single alloc,
	// just not pages from multiple allocs. This is a rare case, arising only when we're

//sys	VirtualAlloc(address uintptr, size uintptr, alloctype uint32, protect uint32) (value uintptr, err error) = kernel32.VirtualAlloc
//sys	VirtualFree(address uintptr, size uintptr, freetype uint32) (err error) = kernel32.VirtualFree
//sys	VirtualProtect(address uintptr, size uintptr, newprotect uint32, oldprotect *uint32) (err error) = kernel32.VirtualProtect

//go:cgo_import_dynamic runtime._TlsAlloc TlsAlloc%0 "kernel32.dll"
//go:cgo_import_dynamic runtime._VirtualAlloc VirtualAlloc%4 "kernel32.dll"
//go:cgo_import_dynamic runtime._VirtualFree VirtualFree%3 "kernel32.dll"
//go:cgo_import_dynamic runtime._VirtualQuery VirtualQuery%3 "kernel32.dll"
//go:cgo_import_dynamic runtime._WaitForSingleObject WaitForSingleObject%2 "kernel32.dll"

	procVirtualAlloc                                         = modkernel32.NewProc("VirtualAlloc")
	procVirtualFree                                          = modkernel32.NewProc("VirtualFree")
	procVirtualLock                                          = modkernel32.NewProc("VirtualLock")
	procVirtualProtect                                       = modkernel32.NewProc("VirtualProtect")