_, err = syscall3(&libc_execve, path, argv, envp)
	return
}

// like exit, but must not split stack, for fork.
//
//go:linkname syscall_exit syscall.exit
//go:nosplit
func syscall_exit(code uintptr) {
	syscall1(&libc_exit, code)
}

//go:linkname syscall_fcntl1 syscall.fcntl1
//go:nosplit
func syscall_fcntl1(fd, cmd, arg uintptr) (val, err uintptr) {

//go:linkname os_runtime_args os.runtime_args
func os_runtime_args() []string { return append([]string{}, argslice...) }

//go:linkname syscall_Exit syscall.Exit
//go:nosplit
func syscall_Exit(code int) {
	exit(int32(code))
}

var godebugDefault string
var godebugUpdate atomic.Pointer[func(string, string)]
var godebugEnv atomic.Pointer[string] // set by parsedebugvars