1 /*
2 * Copyright (c) 2020, 2023, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test id=default_gc
26 * @enablePreview
27 * @requires jdk.foreign.linker != "UNSUPPORTED"
28 * @requires vm.gc != "Z"
29 * @library /test/lib
30 * @library ../
31 * @build jdk.test.whitebox.WhiteBox
32 * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
33 *
34 * @run main/othervm
35 * -Xbootclasspath/a:.
36 * -XX:+UnlockDiagnosticVMOptions
37 * -XX:+WhiteBoxAPI
38 * --enable-native-access=ALL-UNNAMED
39 * -Xbatch
40 * TestStackWalk
41 */
42
43 /*
44 * @test id=ZSinglegen
45 * @enablePreview
46 * @requires jdk.foreign.linker != "UNSUPPORTED"
47 * @requires vm.gc.ZSinglegen
48 * @library /test/lib
49 * @library ../
50 * @build jdk.test.whitebox.WhiteBox
51 * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
52 *
53 * @run main/othervm
54 * -Xbootclasspath/a:.
55 * -XX:+UnlockDiagnosticVMOptions
56 * -XX:+WhiteBoxAPI
57 * --enable-native-access=ALL-UNNAMED
58 * -Xbatch
59 * -XX:+UseZGC -XX:-ZGenerational
60 * TestStackWalk
61 */
62
63 /*
64 * @test id=ZGenerational
65 * @enablePreview
66 * @requires jdk.foreign.linker != "UNSUPPORTED"
67 * @requires vm.gc.ZGenerational
68 * @library /test/lib
69 * @library ../
70 * @build jdk.test.whitebox.WhiteBox
71 * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
72 *
73 * @run main/othervm
74 * -Xbootclasspath/a:.
75 * -XX:+UnlockDiagnosticVMOptions
76 * -XX:+WhiteBoxAPI
77 * --enable-native-access=ALL-UNNAMED
78 * -Xbatch
79 * -XX:+UseZGC -XX:+ZGenerational
80 * TestStackWalk
81 */
82
83 /*
84 * @test id=shenandoah
85 * @enablePreview
86 * @requires jdk.foreign.linker != "UNSUPPORTED"
87 * @requires vm.gc.Shenandoah
88 * @library /test/lib
89 * @library ../
90 * @build jdk.test.whitebox.WhiteBox
91 * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
92 *
93 * @run main/othervm
94 * -Xbootclasspath/a:.
95 * -XX:+UnlockDiagnosticVMOptions
96 * -XX:+WhiteBoxAPI
97 * --enable-native-access=ALL-UNNAMED
98 * -Xbatch
99 * -XX:+UseShenandoahGC
100 * TestStackWalk
101 */
102
103 import java.lang.foreign.Arena;
104 import java.lang.foreign.Linker;
105 import java.lang.foreign.FunctionDescriptor;
106 import java.lang.foreign.MemorySegment;
107
108 import java.lang.invoke.MethodHandle;
109 import java.lang.invoke.MethodType;
110 import java.lang.ref.Reference;
111
112 import jdk.test.whitebox.WhiteBox;
113
114 import static java.lang.invoke.MethodHandles.lookup;
115
116 public class TestStackWalk extends NativeTestHelper {
117 static final WhiteBox WB = WhiteBox.getWhiteBox();
118
119 static final Linker linker = Linker.nativeLinker();
120
121 static final MethodHandle MH_foo;
122 static final MethodHandle MH_m;
123
124 static {
125 try {
126 System.loadLibrary("StackWalk");
127 MH_foo = linker.downcallHandle(
128 findNativeOrThrow("foo"),
129 FunctionDescriptor.ofVoid(C_POINTER));
130 MH_m = lookup().findStatic(TestStackWalk.class, "m", MethodType.methodType(void.class));
131 } catch (ReflectiveOperationException e) {
132 throw new RuntimeException(e);
133 }
134 }
135
136 static boolean armed;
137
138 public static void main(String[] args) throws Throwable {
139 try (Arena arena = Arena.ofConfined()) {
140 MemorySegment stub = linker.upcallStub(MH_m, FunctionDescriptor.ofVoid(), arena);
141 armed = false;
142 for (int i = 0; i < 20_000; i++) {
143 payload(stub); // warmup
144 }
145
146 armed = true;
147 payload(stub); // test
148 }
149 }
150
151 static void payload(MemorySegment cb) throws Throwable {
152 MH_foo.invoke(cb);
153 Reference.reachabilityFence(cb); // keep oop alive across call
154 }
155
156 static void m() {
157 if (armed) {
158 WB.verifyFrames(/*log=*/true, /*updateRegisterMap=*/true);
159 WB.verifyFrames(/*log=*/true, /*updateRegisterMap=*/false); // triggers different code paths
160 }
161 }
162
163 }