| /* |
| * Copyright (c) 2020, 2021, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test id=default_gc |
| * @requires ((os.arch == "amd64" | os.arch == "x86_64") & sun.arch.data.model == "64") | os.arch == "aarch64" |
| * @library /test/lib |
| * @build sun.hotspot.WhiteBox |
| * @run driver jdk.test.lib.helpers.ClassFileInstaller sun.hotspot.WhiteBox |
| * |
| * @run main/othervm |
| * -Xbootclasspath/a:. |
| * -XX:+UnlockDiagnosticVMOptions |
| * -XX:+WhiteBoxAPI |
| * -Djdk.internal.foreign.ProgrammableInvoker.USE_INTRINSICS=true |
| * --enable-native-access=ALL-UNNAMED |
| * -Xbatch |
| * TestStackWalk |
| * |
| * @run main/othervm |
| * -Xbootclasspath/a:. |
| * -XX:+UnlockDiagnosticVMOptions |
| * -XX:+WhiteBoxAPI |
| * -Djdk.internal.foreign.ProgrammableInvoker.USE_INTRINSICS=false |
| * --enable-native-access=ALL-UNNAMED |
| * -Xbatch |
| * TestStackWalk |
| */ |
| |
| /* |
| * @test id=zgc |
| * @requires (((os.arch == "amd64" | os.arch == "x86_64") & sun.arch.data.model == "64") | os.arch == "aarch64") |
| * @requires vm.gc.Z |
| * @library /test/lib |
| * @build sun.hotspot.WhiteBox |
| * @run driver jdk.test.lib.helpers.ClassFileInstaller sun.hotspot.WhiteBox |
| * |
| * @run main/othervm |
| * -Xbootclasspath/a:. |
| * -XX:+UnlockDiagnosticVMOptions |
| * -XX:+WhiteBoxAPI |
| * -Djdk.internal.foreign.ProgrammableInvoker.USE_INTRINSICS=true |
| * --enable-native-access=ALL-UNNAMED |
| * -Xbatch |
| * -XX:+UseZGC |
| * TestStackWalk |
| * |
| * @run main/othervm |
| * -Xbootclasspath/a:. |
| * -XX:+UnlockDiagnosticVMOptions |
| * -XX:+WhiteBoxAPI |
| * -Djdk.internal.foreign.ProgrammableInvoker.USE_INTRINSICS=false |
| * --enable-native-access=ALL-UNNAMED |
| * -Xbatch |
| * -XX:+UseZGC |
| * TestStackWalk |
| */ |
| /* |
| * @test id=shenandoah |
| * @requires (((os.arch == "amd64" | os.arch == "x86_64") & sun.arch.data.model == "64") | os.arch == "aarch64") |
| * @requires vm.gc.Shenandoah |
| * @library /test/lib |
| * @build sun.hotspot.WhiteBox |
| * @run driver jdk.test.lib.helpers.ClassFileInstaller sun.hotspot.WhiteBox |
| * |
| * @run main/othervm |
| * -Xbootclasspath/a:. |
| * -XX:+UnlockDiagnosticVMOptions |
| * -XX:+WhiteBoxAPI |
| * -Djdk.internal.foreign.ProgrammableInvoker.USE_INTRINSICS=true |
| * --enable-native-access=ALL-UNNAMED |
| * -Xbatch |
| * -XX:+UseShenandoahGC |
| * TestStackWalk |
| * |
| * @run main/othervm |
| * -Xbootclasspath/a:. |
| * -XX:+UnlockDiagnosticVMOptions |
| * -XX:+WhiteBoxAPI |
| * -Djdk.internal.foreign.ProgrammableInvoker.USE_INTRINSICS=false |
| * --enable-native-access=ALL-UNNAMED |
| * -Xbatch |
| * -XX:+UseShenandoahGC |
| * TestStackWalk |
| */ |
| |
| import jdk.incubator.foreign.CLinker; |
| import jdk.incubator.foreign.FunctionDescriptor; |
| import jdk.incubator.foreign.SymbolLookup; |
| import jdk.incubator.foreign.MemoryAddress; |
| |
| import java.lang.invoke.MethodHandle; |
| import java.lang.invoke.MethodType; |
| import java.lang.ref.Reference; |
| |
| import jdk.incubator.foreign.ResourceScope; |
| import sun.hotspot.WhiteBox; |
| |
| import static java.lang.invoke.MethodHandles.lookup; |
| import static jdk.incubator.foreign.CLinker.C_POINTER; |
| |
| public class TestStackWalk { |
| static final WhiteBox WB = WhiteBox.getWhiteBox(); |
| |
| static final CLinker linker = CLinker.getInstance(); |
| |
| static final MethodHandle MH_foo; |
| static final MethodHandle MH_m; |
| |
| static { |
| try { |
| System.loadLibrary("StackWalk"); |
| SymbolLookup lookup = SymbolLookup.loaderLookup(); |
| MH_foo = linker.downcallHandle( |
| lookup.lookup("foo").get(), |
| MethodType.methodType(void.class, MemoryAddress.class), |
| FunctionDescriptor.ofVoid(C_POINTER)); |
| MH_m = lookup().findStatic(TestStackWalk.class, "m", MethodType.methodType(void.class)); |
| } catch (ReflectiveOperationException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| static boolean armed; |
| |
| public static void main(String[] args) throws Throwable { |
| try (ResourceScope scope = ResourceScope.newConfinedScope()) { |
| MemoryAddress stub = linker.upcallStub(MH_m, FunctionDescriptor.ofVoid(), scope); |
| MemoryAddress stubAddress = stub.address(); |
| armed = false; |
| for (int i = 0; i < 20_000; i++) { |
| payload(stubAddress); // warmup |
| } |
| |
| armed = true; |
| payload(stubAddress); // test |
| } |
| } |
| |
| static void payload(MemoryAddress cb) throws Throwable { |
| MH_foo.invokeExact(cb); |
| Reference.reachabilityFence(cb); // keep oop alive across call |
| } |
| |
| static void m() { |
| if (armed) { |
| WB.verifyFrames(/*log=*/true, /*updateRegisterMap=*/true); |
| WB.verifyFrames(/*log=*/true, /*updateRegisterMap=*/false); // triggers different code paths |
| } |
| } |
| |
| } |