// 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 obj

						return false
					}
				} else if xi != nil || yi != nil {
					// One but not both of them are interfaces.
					// In this case, either x or y could be viable matches for the corresponding
					// type parameter, which means choosing either introduces an order dependence.
					// Therefore, we must fail unification (go.dev/issue/60933).
					return false
				}

// 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

	stackDebug       = 0
	stackFromSystem  = 0 // allocate stacks from system memory instead of the heap
	stackFaultOnFree = 0 // old stacks are mapped noaccess to detect use after free
	stackNoCache     = 0 // disable per-P small stack caches

	// check the BP links during traceback.
	debugCheckBP = false
)

var (

	TLS_ECDHE_ECDSA_WITH_RC4_128_SHA: true,
	TLS_ECDHE_RSA_WITH_RC4_128_SHA:   true,
	TLS_RSA_WITH_RC4_128_SHA:         true,
}

// rsaKexCiphers contains the ciphers which use RSA based key exchange,
// which we also disable by default unless a GODEBUG is set.
var rsaKexCiphers = map[uint16]bool{
	TLS_RSA_WITH_RC4_128_SHA:        true,
	TLS_RSA_WITH_3DES_EDE_CBC_SHA:   true,
	TLS_RSA_WITH_AES_128_CBC_SHA:    true,

// 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

			t.Skip("skipping gdb tests on linux/ppc64; see https://golang.org/issue/17366")
		}
		if runtime.GOARCH == "mips" {
			t.Skip("skipping gdb tests on linux/mips; see https://golang.org/issue/25939")
		}
		// Disable GDB tests on alpine until issue #54352 resolved.
		if strings.HasSuffix(testenv.Builder(), "-alpine") {
			t.Skip("skipping gdb tests on alpine; see https://golang.org/issue/54352")
		}
	case "freebsd":

// RoundTrip ends up talking over the same fake network the HTTP servers
// currently use in various tests and examples. See go.dev/issue/57613.
//
// TODO(go.dev/issue/60810): See if it's viable to test the Fetch API
// code path.
var jsFetchDisabled = js.Global().Get("process").Type() == js.TypeObject &&
	strings.HasPrefix(js.Global().Get("process").Get("argv0").String(), "node")

	if profile&semaMutexProfile != 0 && mutexprofilerate > 0 {
		if t0 == 0 {
			t0 = cputicks()
		}
		s.acquiretime = t0
	}
	for {
		lockWithRank(&root.lock, lockRankRoot)
		// Add ourselves to nwait to disable "easy case" in semrelease.
		root.nwait.Add(1)
		// Check cansemacquire to avoid missed wakeup.
		if cansemacquire(addr) {
			root.nwait.Add(-1)
			unlock(&root.lock)
			break
		}

var noposn = atPos(nopos)

// debugging/development support
const debug = false // leave on during development

// gotypesalias controls the use of Alias types.
// As of Apr 16 2024 they are used by default.
// To disable their use, set GODEBUG to gotypesalias=0.
// This GODEBUG flag will be removed in the near future (tentatively Go 1.24).
var gotypesalias = godebug.New("gotypesalias")