--- /dev/null 2020-02-06 11:34:07.664987501 +0100 +++ new/test/hotspot/jtreg/gc/shenandoah/jni/libTestPinnedGarbage.c 2020-02-06 19:21:15.597533502 +0100 @@ -0,0 +1,37 @@ +/* + * Copyright (c) 2016, 2018, Red Hat, Inc. All rights reserved. + * + * 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. + * + */ + +#include +#include + +static jint* pinned; + +JNIEXPORT void JNICALL +Java_TestPinnedGarbage_pin(JNIEnv *env, jclass unused, jintArray a) { + pinned = (*env)->GetPrimitiveArrayCritical(env, a, 0); +} + +JNIEXPORT void JNICALL +Java_TestPinnedGarbage_unpin(JNIEnv *env, jclass unused, jintArray a) { + (*env)->ReleasePrimitiveArrayCritical(env, a, pinned, 0); +}