//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
var godebugNewIncNonDefault atomic.Pointer[func(string) func()]

//go:linkname godebug_setUpdate internal/godebug.setUpdate
func godebug_setUpdate(update func(string, string)) {
	p := new(func(string, string))

	setTraceback(gogetenv("GOTRACEBACK"))
	traceback_env = traceback_cache
}

// reparsedebugvars reparses the runtime's debug variables
// because the environment variable has been changed to env.
func reparsedebugvars(env string) {
	seen := make(map[string]bool)
	// apply environment settings
	parsegodebug(env, seen)

	// Note: parsedebugvars may update MemProfileRate, but when disableMemoryProfiling is
	// set to true by the linker, it means that nothing is consuming the profile, it is
	// safe to set MemProfileRate to 0.
	if disableMemoryProfiling {
		MemProfileRate = 0
	}

	// mcommoninit runs before parsedebugvars, so init profstacks again.
	mProfStackInit(gp.m)

	lock(&sched.lock)