"envoy.filters.http.csrf":             "envoy.csrf",
		wellknown.Dynamo:                      "envoy.http_dynamo_filter",
		wellknown.HTTPExternalAuthorization:   "envoy.ext_authz",
		wellknown.Fault:                       "envoy.fault",
		wellknown.GRPCHTTP1Bridge:             "envoy.grpc_http1_bridge",
		wellknown.GRPCJSONTranscoder:          "envoy.grpc_json_transcoder",
		wellknown.GRPCWeb:                     "envoy.grpc_web",

	atomic.AddUint64(a, 1)
	if *a != 2 {
		t.Fatalf("bad atomic value: %v, want 2", *a)
	}
}

func TestAtomicPageBoundary(t *testing.T) {
	// Test that atomic access near (but not cross) a page boundary
	// doesn't fault. See issue 60825.

	// Mmap two pages of memory, and make the second page inaccessible,
	// so we have an address at the end of a page.
	pagesize := syscall.Getpagesize()

// 2) Reserved - Owned by the runtime, but accessing it would cause a fault.
//               Does not count against the process' memory footprint.
// 3) Prepared - Reserved, intended not to be backed by physical memory (though
//               an OS may implement this lazily). Can transition efficiently to
//               Ready. Accessing memory in such a region is undefined (may
//               fault, may give back unexpected zeroes, etc.).

		Name: wellknown.CORS,
		ConfigType: &hcm.HttpFilter_TypedConfig{
			TypedConfig: protoconv.MessageToAny(&cors.Cors{}),
		},
	}
	Fault = &hcm.HttpFilter{
		Name: wellknown.Fault,
		ConfigType: &hcm.HttpFilter_TypedConfig{
			TypedConfig: protoconv.MessageToAny(&fault.HTTPFault{}),
		},
	}
	GrpcWeb = &hcm.HttpFilter{
		Name: wellknown.GRPCWeb,
		ConfigType: &hcm.HttpFilter_TypedConfig{

                            }
                          },
                          {
                            "name": "envoy.filters.http.fault",
                            "typed_config": {
                              "@type": "type.googleapis.com/envoy.extensions.filters.http.fault.v3.HTTPFault"
                            }
                          },
                          {

                 ]
                }
               ]
              }
             },
             {
              "name": "envoy.filters.http.fault",
              "typed_config": {
               "@type": "type.googleapis.com/envoy.extensions.filters.http.fault.v3.HTTPFault"
              }
             },
             {
              "name": "envoy.filters.http.cors",
              "typed_config": {

	testCases := []struct {
		objectName string
		content    string
		partNumber string
		fault      Fault
		accessKey  string
		secretKey  string

		expectedAPIError APIErrorCode
	}{
		// Success case.
		0: {
			objectName: testObject,
			content:    "hello",
			partNumber: "1",
			fault:      None,
			accessKey:  credentials.AccessKey,
			secretKey:  credentials.SecretKey,

			// SIGTRAP on something other than INT 3.
			c.set_sigcode(_SI_USER)
		}

	case _SIGSEGV:
		// x86-64 has 48-bit virtual addresses. The top 16 bits must echo bit 47.
		// The hardware delivers a different kind of fault for a malformed address
		// than it does for an attempt to access a valid but unmapped address.
		// OS X 10.9.2 mishandles the malformed address case, making it look like

							},
						},
					},
				},
			},
			Patch: &networking.EnvoyFilter_Patch{
				Operation: networking.EnvoyFilter_Patch_MERGE,
				Value: buildPatchStruct(`
{"name": "envoy.filters.http.fault",
"typed_config": {
        "@type": "type.googleapis.com/envoy.extensions.filters.http.fault.v3.HTTPFault",
        "downstreamNodes": ["foo"]
}
}`),

	print("r28     ", hex(c.r28()), "\n")
	print("r29     ", hex(c.r29()), "\n")
	print("lr      ", hex(c.lr()), "\n")
	print("sp      ", hex(c.sp()), "\n")
	print("pc      ", hex(c.pc()), "\n")
	print("fault   ", hex(c.fault()), "\n")
}

//go:nosplit
//go:nowritebarrierrec
func (c *sigctxt) sigpc() uintptr { return uintptr(c.pc()) }

func (c *sigctxt) setsigpc(x uint64) { c.set_pc(x) }