st.ss_sp = (char*)base;
	st.ss_flags = 0;
	st.ss_size = CSIGSTKSZ;
	if (sigaltstack(&st, &ost) < 0) {
		perror("sigaltstack failed");
		abort();
	}

	// Call Go.
	SigStackCallback();

	// Disable signal stack and protect it so we can detect reuse.
	if (ost.ss_flags & SS_DISABLE) {
		// Darwin libsystem has a bug where it checks ss_size
		// even if SS_DISABLE is set. (The kernel gets it right.)
		ost.ss_size = CSIGSTKSZ;

package main

import (
	"runtime"
	"runtime/debug"
	"unsafe"
)

func init() {
	register("BadTraceback", BadTraceback)
}

func BadTraceback() {
	// Disable GC to prevent traceback at unexpected time.
	debug.SetGCPercent(-1)
	// Out of an abundance of caution, also make sure that there are
	// no GCs actively in progress.
	runtime.GC()

// panic.
//
// The fallback behavior can be forced on all platforms, even when there is a
// system certificate pool, by setting GODEBUG=x509usefallbackroots=1 (note that
// on Windows and macOS this will disable usage of the platform verification
// APIs and cause the pure Go verifier to be used). Setting
// x509usefallbackroots=1 without calling SetFallbackRoots has no effect.
func SetFallbackRoots(roots *CertPool) {
	if roots == nil {

		"--authentication-kubeconfig", fakeKubeConfig.Name(),
		"--authorization-kubeconfig", fakeKubeConfig.Name(),
		"--kubeconfig", fakeKubeConfig.Name(),
		// disable admission and filters that require talking to kube-apiserver
		"--enable-priority-and-fairness=false",
		"--disable-admission-plugins", "NamespaceLifecycle,MutatingAdmissionWebhook,ValidatingAdmissionWebhook,ValidatingAdmissionPolicy"},
		flags...,
	), nil)
	if err != nil {

package main

import (
	"bytes"
	"fmt"
	"log"
	"net/http"
	"net/http/pprof"
	"net/http/httptest"
	"runtime"
)

func main() {
	// Disable the mutex profiler. This is the default, but that default is
	// load-bearing for this test, which needs the base profile to be empty.
	runtime.SetMutexProfileFraction(0)

	h := pprof.Handler("mutex")

// 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 x86

)

func init() {
	register("AsyncPreempt", AsyncPreempt)
}

func AsyncPreempt() {
	// Run with just 1 GOMAXPROCS so the runtime is required to
	// use scheduler preemption.
	runtime.GOMAXPROCS(1)
	// Disable GC so we have complete control of what we're testing.
	debug.SetGCPercent(-1)
	// Out of an abundance of caution, also make sure that there are
	// no GCs actively in progress. The sweep phase of a GC cycle

			trustdomain:      "",
			jwtPath:          "",
			identityProvider: "",
			expectedErr:      "invalid credential fetcher type foo",
			expectedToken:    "",
			expectedIdp:      "",
		},
	}

	// Disable token refresh for GCE VM credential fetcher.
	plugin.SetTokenRotation(false)
	for id, tc := range testCases {
		id, tc := id, tc
		t.Run(id, func(t *testing.T) {
			t.Parallel()
			cf, err := NewCredFetcher(

// 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 ppc64

	_Copy:    {"copy", 2, false, statement},
	_Delete:  {"delete", 2, false, statement},
	_Imag:    {"imag", 1, false, expression},
	_Len:     {"len", 1, false, expression},
	_Make:    {"make", 1, true, expression},
	// To disable max/min, remove the next two lines.
	_Max:     {"max", 1, true, expression},
	_Min:     {"min", 1, true, expression},
	_New:     {"new", 1, false, expression},
	_Panic:   {"panic", 1, false, statement},