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8251152: ARM32: jtreg c2 Test8202414 test crash

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Some CPUs (like ARM32) does not support unaligned memory accesses. To avoid JVM crashes tests that perform such accesses should be skipped on corresponding platforms.

Reviewed-by: iignatyev, clanger
This commit is contained in:
Filipp Zhinkin 2020-09-07 15:33:27 +00:00
parent e0d5b5f7f2
commit 70d5cac961
2 changed files with 14 additions and 4 deletions
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10
test/hotspot/jtreg/compiler/c2/Test8202414.java
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@ -25,6 +25,8 @@
* @test
* @bug 8202414
* @summary Unsafe write after primitive array creation may result in array length change
* @modules java.base/jdk.internal.misc
* @library /test/lib
* @run main/othervm compiler.c2.Test8202414
*/
@ -34,10 +36,18 @@ import sun.misc.Unsafe;
import java.lang.reflect.Field;
import java.security.AccessController;
import java.security.PrivilegedAction;
import jtreg.SkippedException;
public class Test8202414 {
public static void main(String[] args) {
// Some CPUs (for example, ARM) does not support unaligned
// memory accesses. This test may cause JVM crash due to
// alignment check failure on such CPUs.
if (!jdk.internal.misc.Unsafe.getUnsafe().unalignedAccess()) {
throw new SkippedException(
"Platform is missing unaligned memory accesses support.");
}
System.err.close();
int count = 0;
while (count++ < 120000) {

8
test/hotspot/jtreg/compiler/unsafe/JdkInternalMiscUnsafeUnalignedAccess.java
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2016 SAP SE. All rights reserved.
* Copyright (c) 2016, 2020 SAP SE. 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
@ -26,7 +26,7 @@
* @bug 8158260
* @summary Test unaligned Unsafe accesses
* @modules java.base/jdk.internal.misc:+open
*
* @library /test/lib
* @run main/othervm -Diters=20000 -XX:-UseOnStackReplacement -XX:-BackgroundCompilation
* compiler.unsafe.JdkInternalMiscUnsafeUnalignedAccess
* @author volker.simonis@gmail.com
@ -38,6 +38,7 @@ import jdk.internal.misc.Unsafe;
import java.lang.reflect.Field;
import java.nio.ByteOrder;
import jtreg.SkippedException;
public class JdkInternalMiscUnsafeUnalignedAccess {
static final int ITERS = Integer.getInteger("iters", 20_000);
@ -131,8 +132,7 @@ public class JdkInternalMiscUnsafeUnalignedAccess {
public static void main(String[] args) throws Exception {
if (!UNSAFE.unalignedAccess()) {
System.out.println("Platform is not supporting unaligned access - nothing to test.");
return;
throw new SkippedException("Platform is not supporting unaligned access - nothing to test.");
}
memory = UNSAFE.allocateMemory(SIZE);