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/*
* Copyright (c) 2023, 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
* @enablePreview
* @requires jdk.foreign.linker != "UNSUPPORTED"
* @library /test/lib
* @library ../
* @build jdk.test.whitebox.WhiteBox
* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
*
* @run main/othervm
* -Xbootclasspath/a:.
* -XX:+UnlockDiagnosticVMOptions
* -XX:+WhiteBoxAPI
* --enable-native-access=ALL-UNNAMED
* TestReentrantUpcalls
*/
import java.lang.foreign.Arena;
import java.lang.foreign.FunctionDescriptor;
import java.lang.foreign.MemorySegment;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import jdk.test.whitebox.WhiteBox;
import static java.lang.invoke.MethodHandles.lookup;
public class TestReentrantUpcalls extends NativeTestHelper {
static final WhiteBox WB = WhiteBox.getWhiteBox();
static final MethodHandle MH_m;
static {
System.loadLibrary("ReentrantUpcalls");
try {
MH_m = lookup().findStatic(TestReentrantUpcalls.class, "m",
MethodType.methodType(void.class, int.class, MemorySegment.class, MethodHandle.class));
} catch (ReflectiveOperationException e) {
throw new RuntimeException(e);
}
}
public static void main(String[] args) throws Throwable {
FunctionDescriptor descriptor = FunctionDescriptor.ofVoid(C_INT, C_POINTER);
MethodHandle downcallHandle = downcallHandle("do_recurse", descriptor);
try (Arena arena = Arena.ofConfined()) {
MemorySegment stub = LINKER.upcallStub(
MethodHandles.insertArguments(MH_m, 2, downcallHandle), descriptor, arena);
downcallHandle.invokeExact(0, stub);
}
}
static void m(int depth, MemorySegment thisStub, MethodHandle downcallHandle) throws Throwable {
if (depth < 100) {
downcallHandle.invokeExact(depth + 1, thisStub);
} else {
WB.verifyFrames(/*log=*/true, /*updateRegisterMap=*/true);
WB.verifyFrames(/*log=*/true, /*updateRegisterMap=*/false); // triggers different code paths
}
}
}
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