Update to go1.24.0

test/internal/runtime/sys/README

@@ -0,0 +1,7 @@
+// Copyright 2024 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+The internal/runtime/sys directory contains tests that specifically need to be
+compiled as-if in the internal/runtime/sys package. For error-check tests,
+these require the additional flags -+ and -p=internal/runtime/sys.

test/internal/runtime/sys/inlinegcpc.go

@@ -0,0 +1,29 @@
+// errorcheck -0 -+ -p=internal/runtime/sys -m
+
+// Copyright 2024 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package sys
+
+// A function that calls sys.GetCallerPC or sys.GetCallerSP
+// cannot be inlined, no matter how small it is.
+
+func GetCallerPC() uintptr
+func GetCallerSP() uintptr
+
+func pc() uintptr {
+	return GetCallerPC() + 1
+}
+
+func cpc() uintptr { // ERROR "can inline cpc"
+	return pc() + 2
+}
+
+func sp() uintptr {
+	return GetCallerSP() + 3
+}
+
+func csp() uintptr { // ERROR "can inline csp"
+	return sp() + 4
+}