scavenge.memoryLimitGoal.Store(^uint64(0))
	} else {
		scavenge.memoryLimitGoal.Store(memoryLimitGoal)
	}

	// Now handle the gcPercent goal.

	// If we're called before the first GC completed, disable scavenging.
	// We never scavenge before the 2nd GC cycle anyway (we don't have enough
	// information about the heap yet) so this is fine, and avoids a fault
	// or garbage data later.
	if lastHeapGoal == 0 {

//sys	OpenThread(desiredAccess uint32, inheritHandle bool, threadId uint32) (handle Handle, err error)
//sys	SetProcessPriorityBoost(process Handle, disable bool) (err error) = kernel32.SetProcessPriorityBoost
//sys	GetProcessWorkingSetSizeEx(hProcess Handle, lpMinimumWorkingSetSize *uintptr, lpMaximumWorkingSetSize *uintptr, flags *uint32)

func toolenv() []string {
	var env []string
	if !mustLinkExternal(goos, goarch, false) {
		// Unless the platform requires external linking,
		// we disable cgo to get static binaries for cmd/go and cmd/pprof,
		// so that they work on systems without the same dynamic libraries
		// as the original build system.
		env = append(env, "CGO_ENABLED=0")
	}

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

	// hardware, server hardware, and security.
	//
	// Deprecated: PreferServerCipherSuites is ignored.
	PreferServerCipherSuites bool

	// SessionTicketsDisabled may be set to true to disable session ticket and
	// PSK (resumption) support. Note that on clients, session ticket support is
	// also disabled if ClientSessionCache is nil.
	SessionTicketsDisabled bool

	defer func() {
		if t.Failed() {
			t.Logf("Failure of this test may indicate that your system suffers from a known Linux kernel bug fixed on newer kernels. See https://golang.org/issue/49065.")
		}
	}()

	// Disable on affected builders to avoid flakiness, but otherwise keep
	// it enabled to potentially warn users that they are on a broken
	// kernel.
	if testenv.Builder() != "" && (runtime.GOARCH == "386" || runtime.GOARCH == "amd64") {

		hammerStoreLoadInt64Method, hammerStoreLoadUint64Method,
	}
	n := int(1e6)
	if testing.Short() {
		n = int(1e4)
	}
	const procs = 8
	defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(procs))
	// Disable the GC because hammerStoreLoadPointer invokes
	// write barriers on values that aren't real pointers.
	defer debug.SetGCPercent(debug.SetGCPercent(-1))
	// Ensure any in-progress GC is finished.
	runtime.GC()

	// could make the slow path here several times faster by
	// batching heap frees.

	// Bail early if there's no more reclaim work.
	if h.reclaimIndex.Load() >= 1<<63 {
		return
	}

	// Disable preemption so the GC can't start while we're
	// sweeping, so we can read h.sweepArenas, and so
	// traceGCSweepStart/Done pair on the P.
	mp := acquirem()

	trace := traceAcquire()
	if trace.ok() {

		// of the tinyalloc region. This ensures that any arithmetic
		// that goes off the top end of the object will be detectable
		// by checkptr (issue 38872).
		// Note that we disable tinyalloc when raceenabled for this to work.
		// TODO: This padding is only performed when the race detector
		// is enabled. It would be nice to enable it if any package

// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package riscv